Fixed error 'java.lang.ClassCastException: cannot be cast to android.view.WindowManagerImpl' on Android when using native alert dialogs, updated README.md with Xcode version required

.idea/workspace.xml

@@ -15,7 +15,25 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="9b41f7a2-a71e-4923-91fb-249d7815b3e7" name="Default" comment="">
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/CHANGELOG.md" beforeDir="false" afterPath="$PROJECT_DIR$/CHANGELOG.md" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/README.md" beforeDir="false" afterPath="$PROJECT_DIR$/README.md" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/android/src/main/java/com/pichillilorenzo/flutter_inappwebview/InAppWebView/InAppWebViewChromeClient.java" beforeDir="false" afterPath="$PROJECT_DIR$/android/src/main/java/com/pichillilorenzo/flutter_inappwebview/InAppWebView/InAppWebViewChromeClient.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/example/ios/Flutter/flutter_export_environment.sh" beforeDir="false" afterPath="$PROJECT_DIR$/example/ios/Flutter/flutter_export_environment.sh" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/example/ios/Runner.xcodeproj/project.pbxproj" beforeDir="false" afterPath="$PROJECT_DIR$/example/ios/Runner.xcodeproj/project.pbxproj" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/example/pubspec.yaml" beforeDir="false" afterPath="$PROJECT_DIR$/example/pubspec.yaml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_error_test.dart" beforeDir="false" afterPath="$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_error_test.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/channel_manager.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/channel_manager.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/chrome_safari_browser.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/chrome_safari_browser.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/content_blocker.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/content_blocker.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/cookie_manager.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/cookie_manager.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/http_auth_credentials_database.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/http_auth_credentials_database.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/in_app_browser.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/in_app_browser.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/in_app_localhost_server.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/in_app_localhost_server.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/in_app_webview.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/in_app_webview.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/types.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/types.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/src/webview_options.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/src/webview_options.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/pubspec.yaml" beforeDir="false" afterPath="$PROJECT_DIR$/pubspec.yaml" afterDir="false" />
     </list>
     <ignored path="$PROJECT_DIR$/.dart_tool/" />
     <ignored path="$PROJECT_DIR$/.idea/" />
@@ -35,12 +53,13 @@
   <component name="ExecutionTargetManager" SELECTED_TARGET="Pixel_3_XL_API_24" />
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
-      <file pinned="false" current-in-tab="true">
+      <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/README.md">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="330">
+            <state relative-caret-position="12735">
-              <caret line="22" column="92" selection-start-line="22" selection-start-column="92" selection-end-line="22" selection-end-column="92" />
+              <caret line="849" selection-start-line="849" selection-end-line="849" />
               <folding>
+                <element signature="e#0#20#0" expanded="true" />
                 <element signature="e#0#39#0" expanded="true" />
                 <element signature="e#0#39#0" expanded="true" />
               </folding>
@@ -51,33 +70,33 @@
       <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/CHANGELOG.md">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="255">
+            <state relative-caret-position="30">
-              <caret line="17" column="101" lean-forward="true" selection-start-line="17" selection-start-column="101" selection-end-line="17" selection-end-column="101" />
+              <caret line="2" column="145" selection-start-line="2" selection-start-column="145" selection-end-line="2" selection-end-column="145" />
             </state>
           </provider>
         </entry>
       </file>
-      <file pinned="false" current-in-tab="false">
+      <file pinned="false" current-in-tab="true">
-        <entry file="file://$PROJECT_DIR$/pubspec.yaml">
+        <entry file="file://$PROJECT_DIR$/example/lib/main.dart">
           <provider selected="true" editor-type-id="text-editor">
-            <state>
+            <state relative-caret-position="304">
-              <caret column="26" selection-start-column="6" selection-end-column="26" />
+              <caret line="78" column="1" selection-start-line="78" selection-start-column="1" selection-end-line="78" selection-end-column="1" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/lib/src/in_app_webview.dart">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="235">
-              <caret line="1170" column="66" selection-start-line="1170" selection-start-column="66" selection-end-line="1170" selection-end-column="66" />
               <folding>
-                <element signature="e#0#17#0" expanded="true" />
+                <element signature="e#0#20#0" expanded="true" />
               </folding>
             </state>
           </provider>
         </entry>
       </file>
+      <file pinned="false" current-in-tab="false">
+        <entry file="file://$USER_HOME$/Downloads/in_app_webiew_example.screen.dart">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="345">
+              <caret line="33" column="57" selection-start-line="33" selection-start-column="2" selection-end-line="33" selection-end-column="57" />
+            </state>
+          </provider>
+        </entry>
+      </file>
     </leaf>
   </component>
   <component name="FileTemplateManagerImpl">
@@ -90,13 +109,6 @@
   </component>
   <component name="FindInProjectRecents">
     <findStrings>
-      <find>reload</find>
-      <find>methods</find>
-      <find>class</find>
-      <find>HttpAuthCredentialDatabase</find>
-      <find>###</find>
-      <find>#####</find>
-      <find>loadFile</find>
       <find>window.</find>
       <find>onLoadHttpError</find>
       <find>microphone</find>
@@ -117,9 +129,16 @@
       <find>[InAppBrowser]</find>
       <find>Response({</find>
       <find>flutter_inappbrowser</find>
-      <find>flutterInAppBrowserPlatformReady</find>
       <find>InAppBrowser</find>
       <find>PlatformRead</find>
+      <find>flutterInAppBrowserPlatformReady</find>
+      <find>llowContentAccess</find>
+      <find>ppCache</find>
+      <find>onReceivedClientCertRequest</find>
+      <find>a SSL</find>
+      <find>iltInZoomControls</find>
+      <find>databaseEnabled</find>
+      <find>Cookie</find>
     </findStrings>
     <replaceStrings>
       <replace>activity.getPreferences(0)</replace>
@@ -142,13 +161,10 @@
   <component name="IdeDocumentHistory">
     <option name="CHANGED_PATHS">
       <list>
-        <option value="$PROJECT_DIR$/.github/ISSUE_TEMPLATE/BUG_REPORT.md" />
-        <option value="$PROJECT_DIR$/example/test_driver/app_test.dart" />
         <option value="$PROJECT_DIR$/lib/src/chrome_safari_browser.dart" />
         <option value="$PROJECT_DIR$/example/assets/index.html" />
         <option value="$PROJECT_DIR$/lib/src/types.dart" />
         <option value="$PROJECT_DIR$/example/android/app/src/main/AndroidManifest.xml" />
-        <option value="$PROJECT_DIR$/pubspec.yaml" />
         <option value="$PROJECT_DIR$/lib/flutter_inappwebview.dart" />
         <option value="$PROJECT_DIR$/ios/flutter_inappbrowser.podspec" />
         <option value="$PROJECT_DIR$/example/lib/in_app_webiew_example.screen.dart" />
@@ -168,7 +184,6 @@
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_download_start_test.dart" />
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_find_result_received_test.dart" />
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_js_dialog_test.dart" />
-        <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_error_test.dart" />
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_http_error_test.dart" />
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_resource_custom_scheme_test.dart" />
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_resource_test.dart" />
@@ -180,23 +195,28 @@
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_target_blank_test.dart" />
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_should_override_url_loading_test.dart" />
         <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_ssl_request_test.dart" />
-        <option value="$PROJECT_DIR$/lib/src/in_app_browser.dart" />
-        <option value="$PROJECT_DIR$/lib/src/webview_options.dart" />
-        <option value="$PROJECT_DIR$/example/pubspec.yaml" />
-        <option value="$PROJECT_DIR$/example/lib/main.dart" />
         <option value="$PROJECT_DIR$/ios/Classes/InAppBrowserFlutterPlugin.m" />
         <option value="$PROJECT_DIR$/ios/Classes/InAppWebViewFlutterPlugin.h" />
         <option value="$PROJECT_DIR$/ios/Classes/SwiftFlutterPlugin.swift" />
-        <option value="$PROJECT_DIR$/lib/src/in_app_webview.dart" />
         <option value="$PROJECT_DIR$/lib/src/cookie_manager.dart" />
         <option value="$PROJECT_DIR$/lib/src/http_auth_credentials_database.dart" />
         <option value="$PROJECT_DIR$/example/test_assets/in_app_webview_initial_file_test.html" />
+        <option value="$PROJECT_DIR$/.git/config" />
+        <option value="$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_error_test.dart" />
+        <option value="$PROJECT_DIR$/example/pubspec.yaml" />
+        <option value="$PROJECT_DIR$/lib/src/in_app_webview.dart" />
+        <option value="$PROJECT_DIR$/pubspec.yaml" />
         <option value="$PROJECT_DIR$/CHANGELOG.md" />
+        <option value="$PROJECT_DIR$/lib/src/webview_options.dart" />
+        <option value="$PROJECT_DIR$/lib/src/in_app_browser.dart" />
+        <option value="$PROJECT_DIR$/lib/src/channel_manager.dart" />
+        <option value="$PROJECT_DIR$/example/lib/main.dart" />
         <option value="$PROJECT_DIR$/README.md" />
       </list>
     </option>
   </component>
-  <component name="ProjectFrameBounds">
+  <component name="ProjectFrameBounds" extendedState="6">
+    <option name="x" value="-1" />
     <option name="y" value="23" />
     <option name="width" value="1920" />
     <option name="height" value="1057" />
@@ -248,6 +268,42 @@
               <item name="flutter_inappwebview" type="462c0819:PsiDirectoryNode" />
               <item name="example" type="462c0819:PsiDirectoryNode" />
             </path>
+            <path>
+              <item name="flutter_inappwebview" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_inappwebview" type="462c0819:PsiDirectoryNode" />
+              <item name="example" type="462c0819:PsiDirectoryNode" />
+              <item name="assets" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="flutter_inappwebview" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_inappwebview" type="462c0819:PsiDirectoryNode" />
+              <item name="example" type="462c0819:PsiDirectoryNode" />
+              <item name="assets" type="462c0819:PsiDirectoryNode" />
+              <item name="images" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="flutter_inappwebview" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_inappwebview" type="462c0819:PsiDirectoryNode" />
+              <item name="example" type="462c0819:PsiDirectoryNode" />
+              <item name="lib" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="flutter_inappwebview" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_inappwebview" type="462c0819:PsiDirectoryNode" />
+              <item name="example" type="462c0819:PsiDirectoryNode" />
+              <item name="test_driver" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="flutter_inappwebview" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_inappwebview" type="462c0819:PsiDirectoryNode" />
+              <item name="lib" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="flutter_inappwebview" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_inappwebview" type="462c0819:PsiDirectoryNode" />
+              <item name="lib" type="462c0819:PsiDirectoryNode" />
+              <item name="src" type="462c0819:PsiDirectoryNode" />
+            </path>
           </expand>
           <select />
         </subPane>
@@ -284,6 +340,10 @@
     <property name="show.migrate.to.gradle.popup" value="false" />
   </component>
   <component name="RecentsManager">
+    <key name="MoveFile.RECENT_KEYS">
+      <recent name="$PROJECT_DIR$/example/assets/images" />
+      <recent name="$PROJECT_DIR$/android/src/main/java" />
+    </key>
     <key name="CopyFile.RECENT_KEYS">
       <recent name="$PROJECT_DIR$/example/test_driver" />
       <recent name="$PROJECT_DIR$/example/test_assets" />
@@ -291,10 +351,6 @@
       <recent name="$PROJECT_DIR$/example/assets/images" />
       <recent name="$PROJECT_DIR$/android/libs" />
     </key>
-    <key name="MoveFile.RECENT_KEYS">
-      <recent name="$PROJECT_DIR$/example/assets/images" />
-      <recent name="$PROJECT_DIR$/android/src/main/java" />
-    </key>
   </component>
   <component name="RunDashboard">
     <option name="ruleStates">
@@ -412,8 +468,7 @@
     </todo-panel>
   </component>
   <component name="ToolWindowManager">
-    <frame x="0" y="23" width="1920" height="1057" extended-state="0" />
+    <frame x="-1" y="23" width="1920" height="1057" extended-state="6" />
-    <editor active="true" />
     <layout>
       <window_info content_ui="combo" id="Project" order="0" sideWeight="0.6177474" visible="true" weight="0.20766774" />
       <window_info id="Structure" order="1" sideWeight="0.38225257" side_tool="true" weight="0.2087327" />
@@ -434,7 +489,7 @@
       <window_info anchor="bottom" id="Android Profiler" order="7" show_stripe_button="false" />
       <window_info anchor="bottom" id="Event Log" order="8" sideWeight="0.50532484" side_tool="true" weight="0.35751295" />
       <window_info anchor="bottom" id="Version Control" order="9" />
-      <window_info active="true" anchor="bottom" id="Terminal" order="10" sideWeight="0.4946752" visible="true" weight="0.38860103" />
+      <window_info active="true" anchor="bottom" id="Terminal" order="10" sideWeight="0.4946752" visible="true" weight="0.5668394" />
       <window_info anchor="bottom" id="Logcat" order="11" weight="0.32953367" />
       <window_info anchor="bottom" id="Messages" order="12" sideWeight="0.4968051" weight="0.33782384" />
       <window_info anchor="bottom" id="Dependency Viewer" order="13" weight="0.32800853" />
@@ -464,55 +519,6 @@
     </ignored-roots>
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@@ -562,13 +568,6 @@
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     <entry file="file://$PROJECT_DIR$/example/test_driver/in_app_webview_initial_url_test.dart">
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@@ -611,13 +610,6 @@
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@@ -688,32 +680,6 @@
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@@ -721,13 +687,6 @@
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     <entry file="file://$PROJECT_DIR$/ios/Classes/InAppWebViewFlutterPlugin.h">
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@@ -742,16 +701,6 @@
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-        <state relative-caret-position="182">
-          <caret line="14" column="1" lean-forward="true" selection-start-line="14" selection-start-column="1" selection-end-line="14" selection-end-column="1" />
-          <folding>
-            <element signature="e#0#20#0" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/ios/Classes/SwiftFlutterPlugin.swift">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="765">
@@ -759,16 +708,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/lib/src/in_app_webview.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="235">
-          <caret line="1170" column="66" selection-start-line="1170" selection-start-column="66" selection-end-line="1170" selection-end-column="66" />
-          <folding>
-            <element signature="e#0#17#0" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/lib/src/cookie_manager.dart">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="180">
@@ -804,31 +743,163 @@
     <entry file="file://$PROJECT_DIR$/android/src/main/AndroidManifest.xml">
       <provider selected="true" editor-type-id="text-editor" />
     </entry>
-    <entry file="file://$PROJECT_DIR$/CHANGELOG.md">
+    <entry file="file://$PROJECT_DIR$/.git/description">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/.git/config">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="255">
+        <state relative-caret-position="195">
-          <caret line="17" column="101" lean-forward="true" selection-start-line="17" selection-start-column="101" selection-end-line="17" selection-end-column="101" />
+          <caret line="13" lean-forward="true" selection-start-line="13" selection-end-line="13" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/example/test_driver/in_app_webview_on_load_error_test.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="357">
+          <caret line="27" column="33" selection-start-line="27" selection-start-column="33" selection-end-line="27" selection-end-column="33" />
+          <folding>
+            <element signature="e#0#39#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/lib/src/types.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="161">
+          <caret line="480" column="9" selection-start-line="480" selection-start-column="9" selection-end-line="480" selection-end-column="9" />
+          <folding>
+            <element signature="e#0#20#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$USER_HOME$/flutter/.pub-cache/hosted/pub.dartlang.org/connectivity-0.4.5+6/lib/connectivity.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="75">
+          <caret line="11" column="5" selection-start-line="11" selection-start-column="5" selection-end-line="11" selection-end-column="5" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/example/test_driver/in_app_webview_ssl_request_test.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="367">
+          <caret line="52" column="22" selection-start-line="50" selection-start-column="20" selection-end-line="52" selection-end-column="22" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/example/test_driver/in_app_webview_initial_file_test.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="96">
+          <caret line="28" column="85" selection-start-line="28" selection-start-column="20" selection-end-line="28" selection-end-column="85" />
+          <folding>
+            <element signature="e#0#39#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/example/pubspec.yaml">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="360">
+          <caret line="24" column="24" selection-start-line="24" selection-start-column="24" selection-end-line="24" selection-end-column="24" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/lib/src/in_app_webview.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="161">
+          <caret line="105" column="30" selection-start-line="105" selection-start-column="15" selection-end-line="105" selection-end-column="30" />
+          <folding>
+            <element signature="e#0#17#0" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
     <entry file="file://$PROJECT_DIR$/pubspec.yaml">
       <provider selected="true" editor-type-id="text-editor">
-        <state>
+        <state relative-caret-position="165">
-          <caret column="26" selection-start-column="6" selection-end-column="26" />
+          <caret line="11" column="10" selection-start-line="11" selection-start-column="10" selection-end-line="11" selection-end-column="10" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/lib/src/in_app_browser.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="413">
+          <caret line="539" column="3" lean-forward="true" selection-start-line="539" selection-start-column="3" selection-end-line="539" selection-end-column="3" />
+          <folding>
+            <element signature="e#0#20#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/lib/src/channel_manager.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="225">
+          <caret line="15" column="36" selection-start-line="15" selection-start-column="36" selection-end-line="15" selection-end-column="36" />
+          <folding>
+            <element signature="e#0#20#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/lib/flutter_inappwebview.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="315">
+          <caret line="21" column="29" lean-forward="true" selection-start-line="21" selection-start-column="29" selection-end-line="21" selection-end-column="29" />
+          <folding>
+            <element signature="e#0#1252#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/lib/src/webview_options.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="10620">
+          <caret line="708" column="23" lean-forward="true" selection-start-line="708" selection-start-column="23" selection-end-line="708" selection-end-column="23" />
+          <folding>
+            <element signature="e#0#17#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$USER_HOME$/Downloads/in_app_webiew_example.screen.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="345">
+          <caret line="33" column="57" selection-start-line="33" selection-start-column="2" selection-end-line="33" selection-end-column="57" />
         </state>
       </provider>
     </entry>
     <entry file="file://$PROJECT_DIR$/README.md">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="330">
+        <state relative-caret-position="12735">
-          <caret line="22" column="92" selection-start-line="22" selection-start-column="92" selection-end-line="22" selection-end-column="92" />
+          <caret line="849" selection-start-line="849" selection-end-line="849" />
           <folding>
+            <element signature="e#0#20#0" expanded="true" />
             <element signature="e#0#39#0" expanded="true" />
             <element signature="e#0#39#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
+    <entry file="file://$PROJECT_DIR$/CHANGELOG.md">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="30">
+          <caret line="2" column="145" selection-start-line="2" selection-start-column="145" selection-end-line="2" selection-end-column="145" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/example/README.md">
+      <provider selected="true" editor-type-id="text-editor" />
+    </entry>
+    <entry file="file://$PROJECT_DIR$/example/lib/main.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="304">
+          <caret line="78" column="1" selection-start-line="78" selection-start-column="1" selection-end-line="78" selection-end-column="1" />
+          <folding>
+            <element signature="e#0#20#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
   </component>
   <component name="masterDetails">
     <states>

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2.0.1+1
+
+- Fixed error "java.lang.ClassCastException: $Proxy1 cannot be cast to android.view.WindowManagerImpl" on Android when using native alert dialogs
+
 ## 2.0.1
 
 - Added `onPermissionRequest` event. This event is fired when the webview is requesting permission to access the specified resources and the permission currently isn't granted or denied (available only on Android).

README.md

@@ -14,7 +14,7 @@ A Flutter plugin that allows you to add an inline webview or open an in-app brow
 - Dart sdk: ">=2.0.0-dev.68.0 <3.0.0"
 - Flutter: ">=1.9.1+hotfix.5 <2.0.0"
 - Android: `minSdkVersion 17`
-- iOS: `--ios-language swift`
+- iOS: `--ios-language swift`, Xcode version `>= 11`
 
 ### Note for Android
 
@@ -440,7 +440,7 @@ Instead, on the `onLoadStop` WebView event, you can use `callHandler` directly:
 * `onSafeBrowsingHit`: Event fired when the webview notifies that a loading URL has been flagged by Safe Browsing (available only on Android).
 * `onReceivedHttpAuthRequest`: Event fired when the WebView received an HTTP authentication request. The default behavior is to cancel the request.
 * `onReceivedServerTrustAuthRequest`: Event fired when the WebView need to perform server trust authentication (certificate validation).
-* `onReceivedClientCertRequest`: Notify the host application to handle a SSL client certificate request.
+* `onReceivedClientCertRequest`: Notify the host application to handle an SSL client certificate request.
 * `onFindResultReceived`: Event fired as find-on-page operations progress.
 * `shouldInterceptAjaxRequest`: Event fired when an `XMLHttpRequest` is sent to a server.
 * `onAjaxReadyStateChange`: Event fired whenever the `readyState` attribute of an `XMLHttpRequest` changes.

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/InAppWebView/InAppWebViewChromeClient.java

@@ -164,7 +164,7 @@ public class InAppWebViewChromeClient extends WebChromeClient implements PluginR
       }
     };
 
-    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(view.getContext(), R.style.Theme_AppCompat_Dialog_Alert);
+    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(registrar.activeContext(), R.style.Theme_AppCompat_Dialog_Alert);
     alertDialogBuilder.setMessage(alertMessage);
     if (confirmButtonTitle != null && !confirmButtonTitle.isEmpty()) {
       alertDialogBuilder.setPositiveButton(confirmButtonTitle, clickListener);
@@ -255,7 +255,7 @@ public class InAppWebViewChromeClient extends WebChromeClient implements PluginR
       }
     };
 
-    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(view.getContext(), R.style.Theme_AppCompat_Dialog_Alert);
+    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(registrar.activeContext(), R.style.Theme_AppCompat_Dialog_Alert);
     alertDialogBuilder.setMessage(alertMessage);
     if (confirmButtonTitle != null && !confirmButtonTitle.isEmpty()) {
       alertDialogBuilder.setPositiveButton(confirmButtonTitle, confirmClickListener);
@@ -372,7 +372,7 @@ public class InAppWebViewChromeClient extends WebChromeClient implements PluginR
       }
     };
 
-    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(view.getContext(), R.style.Theme_AppCompat_Dialog_Alert);
+    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(registrar.activeContext(), R.style.Theme_AppCompat_Dialog_Alert);
     alertDialogBuilder.setMessage(alertMessage);
     if (confirmButtonTitle != null && !confirmButtonTitle.isEmpty()) {
       alertDialogBuilder.setPositiveButton(confirmButtonTitle, confirmClickListener);

example/ios/Flutter/flutter_export_environment.sh

@@ -2,9 +2,10 @@
 # This is a generated file; do not edit or check into version control.
 export "FLUTTER_ROOT=/Users/lorenzopichilli/flutter"
 export "FLUTTER_APPLICATION_PATH=/Users/lorenzopichilli/Desktop/flutter_inappwebview/example"
-export "FLUTTER_TARGET=/Users/lorenzopichilli/Desktop/flutter_inappwebview/example/test_driver/app.dart"
+export "FLUTTER_TARGET=/Users/lorenzopichilli/Desktop/flutter_inappwebview/example/lib/main.dart"
 export "FLUTTER_BUILD_DIR=build"
 export "SYMROOT=${SOURCE_ROOT}/../build/ios"
 export "FLUTTER_FRAMEWORK_DIR=/Users/lorenzopichilli/flutter/bin/cache/artifacts/engine/ios"
 export "FLUTTER_BUILD_NAME=1.0.0"
 export "FLUTTER_BUILD_NUMBER=1"
+export "TRACK_WIDGET_CREATION=true"

example/ios/Runner.xcodeproj/project.pbxproj

@@ -268,6 +268,8 @@
 			inputPaths = (
 				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh",
 				"${PODS_ROOT}/../.symlinks/flutter/ios/Flutter.framework",
+				"${BUILT_PRODUCTS_DIR}/Reachability/Reachability.framework",
+				"${BUILT_PRODUCTS_DIR}/connectivity/connectivity.framework",
 				"${BUILT_PRODUCTS_DIR}/flutter_downloader/flutter_downloader.framework",
 				"${BUILT_PRODUCTS_DIR}/flutter_inappwebview/flutter_inappwebview.framework",
 				"${BUILT_PRODUCTS_DIR}/path_provider/path_provider.framework",
@@ -275,6 +277,8 @@
 			name = "[CP] Embed Pods Frameworks";
 			outputPaths = (
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/Flutter.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/Reachability.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/connectivity.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/flutter_downloader.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/flutter_inappwebview.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/path_provider.framework",

example/pubspec.yaml

@@ -22,6 +22,7 @@ dependencies:
   flutter_downloader: ^1.3.2
   path_provider: ^1.4.0
   permission_handler: ^3.3.0
+  connectivity: ^0.4.5+6
   flutter_inappwebview:
     path: ../
 

example/test_driver/in_app_webview_on_load_error_test.dart

@@ -27,7 +27,7 @@ class InAppWebViewOnLoadErrorTestState extends WidgetTestState {
               Expanded(
                 child: Container(
                   child: InAppWebView(
-                    initialUrl: "http://not-existing-domain.org/",
+                    initialUrl: "https://not-existing-domain.org/",
                     initialHeaders: {},
                     initialOptions: InAppWebViewWidgetOptions(
                         inAppWebViewOptions: InAppWebViewOptions(

lib/src/channel_manager.dart

@@ -6,7 +6,8 @@ import 'package:flutter/services.dart';
 import 'types.dart' show ListenerCallback;
 
 class ChannelManager {
-  static const MethodChannel channel = const MethodChannel('com.pichillilorenzo/flutter_inappbrowser');
+  static const MethodChannel channel =
+      const MethodChannel('com.pichillilorenzo/flutter_inappbrowser');
   static bool initialized = false;
   static final listeners = HashMap<String, ListenerCallback>();
 
@@ -16,13 +17,12 @@ class ChannelManager {
   }
 
   static void addListener(String key, ListenerCallback callback) {
-    if (!initialized)
+    if (!initialized) init();
-      init();
     listeners.putIfAbsent(key, () => callback);
   }
 
-  static void init () {
+  static void init() {
     channel.setMethodCallHandler(_handleMethod);
     initialized = true;
   }
-}
+}

lib/src/chrome_safari_browser.dart

@@ -20,7 +20,7 @@ class ChromeSafariBrowser {
   bool _isOpened = false;
 
   ///Initialize the [ChromeSafariBrowser] instance with an [InAppBrowser] fallback instance or `null`.
-  ChromeSafariBrowser ({bFallback}) {
+  ChromeSafariBrowser({bFallback}) {
     uuid = uuidGenerator.v4();
     browserFallback = bFallback;
     ChannelManager.addListener(uuid, handleMethod);
@@ -28,7 +28,7 @@ class ChromeSafariBrowser {
   }
 
   Future<dynamic> handleMethod(MethodCall call) async {
-    switch(call.method) {
+    switch (call.method) {
       case "onChromeSafariBrowserOpened":
         onOpened();
         break;
@@ -53,7 +53,11 @@ class ChromeSafariBrowser {
   ///[headersFallback]: The additional header of the [InAppBrowser] instance fallback to be used in the HTTP request for this URL, specified as a map from name to value.
   ///
   ///[optionsFallback]: Options used by the [InAppBrowser] instance fallback.
-  Future<void> open({@required String url, ChromeSafariBrowserClassOptions options, Map<String, String> headersFallback = const {}, InAppBrowserClassOptions optionsFallback}) async {
+  Future<void> open(
+      {@required String url,
+      ChromeSafariBrowserClassOptions options,
+      Map<String, String> headersFallback = const {},
+      InAppBrowserClassOptions optionsFallback}) async {
     assert(url != null && url.isNotEmpty);
     this.throwIsAlreadyOpened(message: 'Cannot open $url!');
 
@@ -65,21 +69,33 @@ class ChromeSafariBrowser {
 
     Map<String, dynamic> optionsFallbackMap = {};
     if (optionsFallback != null) {
-      optionsFallbackMap.addAll(optionsFallback.inAppBrowserOptions?.toMap() ?? {});
+      optionsFallbackMap
-      optionsFallbackMap.addAll(optionsFallback.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
+          .addAll(optionsFallback.inAppBrowserOptions?.toMap() ?? {});
+      optionsFallbackMap.addAll(optionsFallback
+              .inAppWebViewWidgetOptions?.inAppWebViewOptions
+              ?.toMap() ??
+          {});
       if (Platform.isAndroid) {
-        optionsFallbackMap.addAll(optionsFallback.androidInAppBrowserOptions?.toMap() ?? {});
+        optionsFallbackMap
-        optionsFallbackMap.addAll(optionsFallback.inAppWebViewWidgetOptions?.androidInAppWebViewOptions?.toMap() ?? {});
+            .addAll(optionsFallback.androidInAppBrowserOptions?.toMap() ?? {});
-      }
+        optionsFallbackMap.addAll(optionsFallback
-      else if (Platform.isIOS) {
+                .inAppWebViewWidgetOptions?.androidInAppWebViewOptions
-        optionsFallbackMap.addAll(optionsFallback.iosInAppBrowserOptions?.toMap() ?? {});
+                ?.toMap() ??
-        optionsFallbackMap.addAll(optionsFallback.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ?? {});
+            {});
+      } else if (Platform.isIOS) {
+        optionsFallbackMap
+            .addAll(optionsFallback.iosInAppBrowserOptions?.toMap() ?? {});
+        optionsFallbackMap.addAll(optionsFallback
+                .inAppWebViewWidgetOptions?.iosInAppWebViewOptions
+                ?.toMap() ??
+            {});
       }
     }
 
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent('uuid', () => uuid);
-    args.putIfAbsent('uuidFallback', () => (browserFallback != null) ? browserFallback.uuid : '');
+    args.putIfAbsent('uuidFallback',
+        () => (browserFallback != null) ? browserFallback.uuid : '');
     args.putIfAbsent('url', () => url);
     args.putIfAbsent('headers', () => headersFallback);
     args.putIfAbsent('options', () => optionsMap);
@@ -91,19 +107,13 @@ class ChromeSafariBrowser {
   }
 
   ///Event fires when the [ChromeSafariBrowser] is opened.
-  void onOpened() {
+  void onOpened() {}
-
-  }
 
   ///Event fires when the [ChromeSafariBrowser] is loaded.
-  void onLoaded() {
+  void onLoaded() {}
-
-  }
 
   ///Event fires when the [ChromeSafariBrowser] is closed.
-  void onClosed() {
+  void onClosed() {}
-
-  }
 
   ///Returns `true` if the [ChromeSafariBrowser] instance is opened, otherwise `false`.
   bool isOpened() {
@@ -112,13 +122,17 @@ class ChromeSafariBrowser {
 
   void throwIsAlreadyOpened({String message = ''}) {
     if (this.isOpened()) {
-      throw Exception(['Error: ${ (message.isEmpty) ? '' : message + ' '}The browser is already opened.']);
+      throw Exception([
+        'Error: ${(message.isEmpty) ? '' : message + ' '}The browser is already opened.'
+      ]);
     }
   }
 
   void throwIsNotOpened({String message = ''}) {
     if (!this.isOpened()) {
-      throw Exception(['Error: ${ (message.isEmpty) ? '' : message + ' '}The browser is not opened.']);
+      throw Exception([
+        'Error: ${(message.isEmpty) ? '' : message + ' '}The browser is not opened.'
+      ]);
     }
   }
-}
+}

lib/src/content_blocker.dart

@@ -11,27 +11,22 @@ import 'types.dart';
 class ContentBlocker {
   ///Trigger of the content blocker. The trigger tells to the WebView when to perform the corresponding action.
   ContentBlockerTrigger trigger;
+
   ///Action associated to the trigger. The action tells to the WebView what to do when the trigger is matched.
   ContentBlockerAction action;
 
-  ContentBlocker({@required this.trigger,@required this.action});
+  ContentBlocker({@required this.trigger, @required this.action});
 
   Map<String, Map<String, dynamic>> toMap() {
-    return {
+    return {"trigger": trigger.toMap(), "action": action.toMap()};
-      "trigger": trigger.toMap(),
-      "action": action.toMap()
-    };
   }
 
   static ContentBlocker fromMap(Map<dynamic, Map<dynamic, dynamic>> map) {
     return ContentBlocker(
         trigger: ContentBlockerTrigger.fromMap(
-          Map<String, dynamic>.from(map["trigger"])
+            Map<String, dynamic>.from(map["trigger"])),
-        ),
         action: ContentBlockerAction.fromMap(
-          Map<String, dynamic>.from(map["action"])
+            Map<String, dynamic>.from(map["action"])));
-        )
-      );
   }
 }
 
@@ -42,29 +37,42 @@ class ContentBlocker {
 class ContentBlockerTrigger {
   ///A regular expression pattern to match the URL against.
   String urlFilter;
+
   ///Used only by iOS. A Boolean value. The default value is false.
   bool urlFilterIsCaseSensitive;
+
   ///A list of [ContentBlockerTriggerResourceType] representing the resource types (how the browser intends to use the resource) that the rule should match.
   ///If not specified, the rule matches all resource types.
   List<ContentBlockerTriggerResourceType> resourceType;
+
   ///A list of strings matched to a URL's domain; limits action to a list of specific domains.
   ///Values must be lowercase ASCII, or punycode for non-ASCII. Add * in front to match domain and subdomains. Can't be used with [ContentBlockerTrigger.unlessDomain].
   List<String> ifDomain;
+
   ///A list of strings matched to a URL's domain; acts on any site except domains in a provided list.
   ///Values must be lowercase ASCII, or punycode for non-ASCII. Add * in front to match domain and subdomains. Can't be used with [ContentBlockerTrigger.ifDomain].
   List<String> unlessDomain;
+
   ///A list of [ContentBlockerTriggerLoadType] that can include one of two mutually exclusive values. If not specified, the rule matches all load types.
   List<ContentBlockerTriggerLoadType> loadType;
+
   ///A list of strings matched to the entire main document URL; limits the action to a specific list of URL patterns.
   ///Values must be lowercase ASCII, or punycode for non-ASCII. Can't be used with [ContentBlockerTrigger.unlessTopUrl].
   List<String> ifTopUrl;
+
   ///An array of strings matched to the entire main document URL; acts on any site except URL patterns in provided list.
   ///Values must be lowercase ASCII, or punycode for non-ASCII. Can't be used with [ContentBlockerTrigger.ifTopUrl].
   List<String> unlessTopUrl;
 
-  ContentBlockerTrigger({@required String urlFilter, bool urlFilterIsCaseSensitive = false, List<ContentBlockerTriggerResourceType> resourceType = const [],
+  ContentBlockerTrigger(
-    List<String> ifDomain = const [], List<String> unlessDomain = const [], List<ContentBlockerTriggerLoadType> loadType = const [],
+      {@required String urlFilter,
-    List<String> ifTopUrl = const [], List<String> unlessTopUrl = const []}) {
+      bool urlFilterIsCaseSensitive = false,
+      List<ContentBlockerTriggerResourceType> resourceType = const [],
+      List<String> ifDomain = const [],
+      List<String> unlessDomain = const [],
+      List<ContentBlockerTriggerLoadType> loadType = const [],
+      List<String> ifTopUrl = const [],
+      List<String> unlessTopUrl = const []}) {
     this.urlFilter = urlFilter;
     assert(this.urlFilter != null);
     this.resourceType = resourceType;
@@ -101,7 +109,9 @@ class ContentBlockerTrigger {
     };
 
     map.keys
-        .where((key) => map[key] == null || (map[key] is List && (map[key] as List).length == 0)) // filter keys
+        .where((key) =>
+            map[key] == null ||
+            (map[key] is List && (map[key] as List).length == 0)) // filter keys
         .toList() // create a copy to avoid concurrent modifications
         .forEach(map.remove);
 
@@ -112,7 +122,8 @@ class ContentBlockerTrigger {
     List<ContentBlockerTriggerResourceType> resourceType = [];
     List<ContentBlockerTriggerLoadType> loadType = [];
 
-    List<String> resourceTypeStringList = List<String>.from(map["resource-type"] ?? []);
+    List<String> resourceTypeStringList =
+        List<String>.from(map["resource-type"] ?? []);
     resourceTypeStringList.forEach((type) {
       resourceType.add(ContentBlockerTriggerResourceType.fromValue(type));
     });
@@ -130,8 +141,7 @@ class ContentBlockerTrigger {
         resourceType: resourceType,
         loadType: loadType,
         ifTopUrl: List<String>.from(map["if-top-url"] ?? []),
-        unlessTopUrl: List<String>.from(map["unless-top-url"] ?? [])
+        unlessTopUrl: List<String>.from(map["unless-top-url"] ?? []));
-    );
   }
 }
 
@@ -143,11 +153,13 @@ class ContentBlockerTrigger {
 class ContentBlockerAction {
   ///Type of the action.
   ContentBlockerActionType type;
+
   ///If the action type is [ContentBlockerActionType.CSS_DISPLAY_NONE], then also the [selector] property is required, otherwise it is ignored.
   ///It specify a string that defines a selector list. Use CSS identifiers as the individual selector values, separated by commas.
   String selector;
 
-  ContentBlockerAction({@required ContentBlockerActionType type, String selector}) {
+  ContentBlockerAction(
+      {@required ContentBlockerActionType type, String selector}) {
     this.type = type;
     assert(this.type != null);
     if (this.type == ContentBlockerActionType.CSS_DISPLAY_NONE) {
@@ -157,13 +169,12 @@ class ContentBlockerAction {
   }
 
   Map<String, dynamic> toMap() {
-    Map<String, dynamic> map =  {
+    Map<String, dynamic> map = {"type": type.toValue(), "selector": selector};
-      "type": type.toValue(),
-      "selector": selector
-    };
 
     map.keys
-        .where((key) => map[key] == null || (map[key] is List && (map[key] as List).length == 0)) // filter keys
+        .where((key) =>
+            map[key] == null ||
+            (map[key] is List && (map[key] as List).length == 0)) // filter keys
         .toList() // create a copy to avoid concurrent modifications
         .forEach(map.remove);
 
@@ -173,7 +184,6 @@ class ContentBlockerAction {
   static ContentBlockerAction fromMap(Map<String, dynamic> map) {
     return ContentBlockerAction(
         type: ContentBlockerActionType.fromValue(map["type"]),
-        selector: map["selector"]
+        selector: map["selector"]);
-    );
   }
-}
+}

lib/src/cookie_manager.dart

@@ -10,7 +10,8 @@ import 'types.dart';
 ///**NOTE for iOS**: available from iOS 11.0+.
 class CookieManager {
   static CookieManager _instance;
-  static const MethodChannel _channel = const MethodChannel('com.pichillilorenzo/flutter_inappwebview_cookiemanager');
+  static const MethodChannel _channel = const MethodChannel(
+      'com.pichillilorenzo/flutter_inappwebview_cookiemanager');
 
   ///Gets the cookie manager shared instance.
   static CookieManager instance() {
@@ -23,21 +24,22 @@ class CookieManager {
     return _instance;
   }
 
-  static Future<dynamic> _handleMethod(MethodCall call) async {
+  static Future<dynamic> _handleMethod(MethodCall call) async {}
-  }
 
   ///Sets a cookie for the given [url]. Any existing cookie with the same [host], [path] and [name] will be replaced with the new cookie. The cookie being set will be ignored if it is expired.
   ///
   ///The default value of [path] is `"/"`.
   ///If [domain] is `null`, its default value will be the domain name of [url].
-  Future<void> setCookie({@required String url, @required String name, @required String value,
+  Future<void> setCookie(
-        String domain,
+      {@required String url,
-        String path = "/",
+      @required String name,
-        int expiresDate,
+      @required String value,
-        int maxAge,
+      String domain,
-        bool isSecure }) async {
+      String path = "/",
-    if (domain == null)
+      int expiresDate,
-      domain = _getDomainName(url);
+      int maxAge,
+      bool isSecure}) async {
+    if (domain == null) domain = _getDomainName(url);
 
     assert(url != null && url.isNotEmpty);
     assert(name != null && name.isNotEmpty);
@@ -64,17 +66,20 @@ class CookieManager {
 
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent('url', () => url);
-    List<dynamic> cookieListMap = await _channel.invokeMethod('getCookies', args);
+    List<dynamic> cookieListMap =
+        await _channel.invokeMethod('getCookies', args);
     cookieListMap = cookieListMap.cast<Map<dynamic, dynamic>>();
     List<Cookie> cookies = [];
-    for(var i = 0; i < cookieListMap.length; i++) {
+    for (var i = 0; i < cookieListMap.length; i++) {
-      cookies.add(Cookie(name: cookieListMap[i]["name"], value: cookieListMap[i]["value"]));
+      cookies.add(Cookie(
+          name: cookieListMap[i]["name"], value: cookieListMap[i]["value"]));
     }
     return cookies;
   }
 
   ///Gets a cookie by its [name] for the given [url].
-  Future<Cookie> getCookie({@required String url, @required String name}) async {
+  Future<Cookie> getCookie(
+      {@required String url, @required String name}) async {
     assert(url != null && url.isNotEmpty);
     assert(name != null && name.isNotEmpty);
 
@@ -82,7 +87,7 @@ class CookieManager {
     args.putIfAbsent('url', () => url);
     List<dynamic> cookies = await _channel.invokeMethod('getCookies', args);
     cookies = cookies.cast<Map<dynamic, dynamic>>();
-    for(var i = 0; i < cookies.length; i++) {
+    for (var i = 0; i < cookies.length; i++) {
       cookies[i] = cookies[i].cast<String, dynamic>();
       if (cookies[i]["name"] == name)
         return Cookie(name: cookies[i]["name"], value: cookies[i]["value"]);
@@ -94,9 +99,12 @@ class CookieManager {
   ///
   ///The default value of [path] is `"/"`.
   ///If [domain] is `null` or empty, its default value will be the domain name of [url].
-  Future<void> deleteCookie({@required String url, @required String name, String domain = "", String path = "/"}) async {
+  Future<void> deleteCookie(
-    if (domain == null || domain.isEmpty)
+      {@required String url,
-      domain = _getDomainName(url);
+      @required String name,
+      String domain = "",
+      String path = "/"}) async {
+    if (domain == null || domain.isEmpty) domain = _getDomainName(url);
 
     assert(url != null && url.isNotEmpty);
     assert(name != null && name.isNotEmpty);
@@ -115,9 +123,9 @@ class CookieManager {
   ///
   ///The default value of [path] is `"/"`.
   ///If [domain] is `null` or empty, its default value will be the domain name of [url].
-  Future<void> deleteCookies({@required String url, String domain = "", String path = "/"}) async {
+  Future<void> deleteCookies(
-    if (domain == null || domain.isEmpty)
+      {@required String url, String domain = "", String path = "/"}) async {
-      domain = _getDomainName(url);
+    if (domain == null || domain.isEmpty) domain = _getDomainName(url);
 
     assert(url != null && url.isNotEmpty);
     assert(domain != null && url.isNotEmpty);
@@ -139,8 +147,7 @@ class CookieManager {
   String _getDomainName(String url) {
     Uri uri = Uri.parse(url);
     String domain = uri.host;
-    if (domain == null)
+    if (domain == null) return "";
-      return "";
     return domain.startsWith("www.") ? domain.substring(4) : domain;
   }
-}
+}

lib/src/http_auth_credentials_database.dart

@@ -11,7 +11,8 @@ import 'package:flutter/services.dart';
 ///doesn't offer the same functionalities as iOS `URLCredentialStorage`.
 class HttpAuthCredentialDatabase {
   static HttpAuthCredentialDatabase _instance;
-  static const MethodChannel _channel = const MethodChannel('com.pichillilorenzo/flutter_inappwebview_credential_database');
+  static const MethodChannel _channel = const MethodChannel(
+      'com.pichillilorenzo/flutter_inappwebview_credential_database');
 
   ///Gets the database shared instance.
   static HttpAuthCredentialDatabase instance() {
@@ -24,44 +25,57 @@ class HttpAuthCredentialDatabase {
     return _instance;
   }
 
-  static Future<dynamic> _handleMethod(MethodCall call) async {
+  static Future<dynamic> _handleMethod(MethodCall call) async {}
-  }
 
   ///Gets a map list of all HTTP auth credentials saved.
   ///Each map contains the key `protectionSpace` of type [ProtectionSpace]
   ///and the key `credentials` of type `List<HttpAuthCredential>` that contains all the HTTP auth credentials saved for that `protectionSpace`.
   Future<List<Map<String, dynamic>>> getAllAuthCredentials() async {
     Map<String, dynamic> args = <String, dynamic>{};
-    List<dynamic> allCredentials = await _channel.invokeMethod('getAllAuthCredentials', args);
+    List<dynamic> allCredentials =
+        await _channel.invokeMethod('getAllAuthCredentials', args);
     List<Map<String, dynamic>> result = [];
     for (Map<dynamic, dynamic> map in allCredentials) {
       Map<dynamic, dynamic> protectionSpace = map["protectionSpace"];
       List<dynamic> credentials = map["credentials"];
       result.add({
-        "protectionSpace": ProtectionSpace(host: protectionSpace["host"], protocol: protectionSpace["protocol"], realm: protectionSpace["realm"], port: protectionSpace["port"]),
+        "protectionSpace": ProtectionSpace(
-        "credentials": credentials.map((credential) => HttpAuthCredential(username: credential["username"], password: credential["password"])).toList()
+            host: protectionSpace["host"],
+            protocol: protectionSpace["protocol"],
+            realm: protectionSpace["realm"],
+            port: protectionSpace["port"]),
+        "credentials": credentials
+            .map((credential) => HttpAuthCredential(
+                username: credential["username"],
+                password: credential["password"]))
+            .toList()
       });
     }
     return result;
   }
 
   ///Gets all the HTTP auth credentials saved for that [protectionSpace].
-  Future<List<HttpAuthCredential>> getHttpAuthCredentials({@required ProtectionSpace protectionSpace}) async {
+  Future<List<HttpAuthCredential>> getHttpAuthCredentials(
+      {@required ProtectionSpace protectionSpace}) async {
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent("host", () => protectionSpace.host);
     args.putIfAbsent("protocol", () => protectionSpace.protocol);
     args.putIfAbsent("realm", () => protectionSpace.realm);
     args.putIfAbsent("port", () => protectionSpace.port);
-    List<dynamic> credentialList = await _channel.invokeMethod('getHttpAuthCredentials', args);
+    List<dynamic> credentialList =
+        await _channel.invokeMethod('getHttpAuthCredentials', args);
     List<HttpAuthCredential> credentials = [];
     for (Map<dynamic, dynamic> credential in credentialList) {
-      credentials.add(HttpAuthCredential(username: credential["username"], password: credential["password"]));
+      credentials.add(HttpAuthCredential(
+          username: credential["username"], password: credential["password"]));
     }
     return credentials;
   }
 
   ///Saves an HTTP auth [credential] for that [protectionSpace].
-  Future<void> setHttpAuthCredential({@required ProtectionSpace protectionSpace, @required HttpAuthCredential credential}) async {
+  Future<void> setHttpAuthCredential(
+      {@required ProtectionSpace protectionSpace,
+      @required HttpAuthCredential credential}) async {
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent("host", () => protectionSpace.host);
     args.putIfAbsent("protocol", () => protectionSpace.protocol);
@@ -73,7 +87,9 @@ class HttpAuthCredentialDatabase {
   }
 
   ///Removes an HTTP auth [credential] for that [protectionSpace].
-  Future<void> removeHttpAuthCredential({@required ProtectionSpace protectionSpace, @required HttpAuthCredential credential}) async {
+  Future<void> removeHttpAuthCredential(
+      {@required ProtectionSpace protectionSpace,
+      @required HttpAuthCredential credential}) async {
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent("host", () => protectionSpace.host);
     args.putIfAbsent("protocol", () => protectionSpace.protocol);
@@ -85,7 +101,8 @@ class HttpAuthCredentialDatabase {
   }
 
   ///Removes all the HTTP auth credentials saved for that [protectionSpace].
-  Future<void> removeHttpAuthCredentials({@required ProtectionSpace protectionSpace}) async {
+  Future<void> removeHttpAuthCredentials(
+      {@required ProtectionSpace protectionSpace}) async {
     Map<String, dynamic> args = <String, dynamic>{};
     args.putIfAbsent("host", () => protectionSpace.host);
     args.putIfAbsent("protocol", () => protectionSpace.protocol);
@@ -99,4 +116,4 @@ class HttpAuthCredentialDatabase {
     Map<String, dynamic> args = <String, dynamic>{};
     await _channel.invokeMethod('clearAllAuthCredentials', args);
   }
-}
+}

lib/src/in_app_browser.dart

@@ -14,23 +14,25 @@ import 'in_app_webview.dart' show InAppWebViewController;
 ///
 ///This class uses the native WebView of the platform.
 class InAppBrowser {
-
   String uuid;
-  Map<String, JavaScriptHandlerCallback> javaScriptHandlersMap = HashMap<String, JavaScriptHandlerCallback>();
+  Map<String, JavaScriptHandlerCallback> javaScriptHandlersMap =
+      HashMap<String, JavaScriptHandlerCallback>();
   bool _isOpened = false;
+
   /// WebView Controller that can be used to access the [InAppWebView] API.
   InAppWebViewController webViewController;
 
   ///
-  InAppBrowser () {
+  InAppBrowser() {
     uuid = uuidGenerator.v4();
     ChannelManager.addListener(uuid, handleMethod);
     _isOpened = false;
-    webViewController = new InAppWebViewController.fromInAppBrowser(uuid, ChannelManager.channel, this);
+    webViewController = new InAppWebViewController.fromInAppBrowser(
+        uuid, ChannelManager.channel, this);
   }
 
   Future<dynamic> handleMethod(MethodCall call) async {
-    switch(call.method) {
+    switch (call.method) {
       case "onBrowserCreated":
         this._isOpened = true;
         onBrowserCreated();
@@ -51,21 +53,29 @@ class InAppBrowser {
   ///[headers]: The additional headers to be used in the HTTP request for this URL, specified as a map from name to value.
   ///
   ///[options]: Options for the [InAppBrowser].
-  Future<void> open({String url = "about:blank", Map<String, String> headers = const {}, InAppBrowserClassOptions options}) async {
+  Future<void> open(
+      {String url = "about:blank",
+      Map<String, String> headers = const {},
+      InAppBrowserClassOptions options}) async {
     assert(url != null && url.isNotEmpty);
     this.throwIsAlreadyOpened(message: 'Cannot open $url!');
 
     Map<String, dynamic> optionsMap = {};
 
     optionsMap.addAll(options.inAppBrowserOptions?.toMap() ?? {});
-    optionsMap.addAll(options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
+    optionsMap.addAll(
+        options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
     if (Platform.isAndroid) {
       optionsMap.addAll(options.androidInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.androidInAppWebViewOptions?.toMap() ?? {});
+      optionsMap.addAll(options
-    }
+              .inAppWebViewWidgetOptions?.androidInAppWebViewOptions
-    else if (Platform.isIOS) {
+              ?.toMap() ??
+          {});
+    } else if (Platform.isIOS) {
       optionsMap.addAll(options.iosInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ?? {});
+      optionsMap.addAll(
+          options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ??
+              {});
     }
 
     Map<String, dynamic> args = <String, dynamic>{};
@@ -113,21 +123,29 @@ class InAppBrowser {
   ///[headers]: The additional headers to be used in the HTTP request for this URL, specified as a map from name to value.
   ///
   ///[options]: Options for the [InAppBrowser].
-  Future<void> openFile({@required String assetFilePath, Map<String, String> headers = const {}, InAppBrowserClassOptions options}) async {
+  Future<void> openFile(
+      {@required String assetFilePath,
+      Map<String, String> headers = const {},
+      InAppBrowserClassOptions options}) async {
     assert(assetFilePath != null && assetFilePath.isNotEmpty);
     this.throwIsAlreadyOpened(message: 'Cannot open $assetFilePath!');
 
     Map<String, dynamic> optionsMap = {};
 
     optionsMap.addAll(options.inAppBrowserOptions?.toMap() ?? {});
-    optionsMap.addAll(options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
+    optionsMap.addAll(
+        options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
     if (Platform.isAndroid) {
       optionsMap.addAll(options.androidInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.androidInAppWebViewOptions?.toMap() ?? {});
+      optionsMap.addAll(options
-    }
+              .inAppWebViewWidgetOptions?.androidInAppWebViewOptions
-    else if (Platform.isIOS) {
+              ?.toMap() ??
+          {});
+    } else if (Platform.isIOS) {
       optionsMap.addAll(options.iosInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ?? {});
+      optionsMap.addAll(
+          options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ??
+              {});
     }
 
     Map<String, dynamic> args = <String, dynamic>{};
@@ -149,20 +167,30 @@ class InAppBrowser {
   ///The [encoding] parameter specifies the encoding of the data.
   ///
   ///The [options] parameter specifies the options for the [InAppBrowser].
-  Future<void> openData({@required String data, String mimeType = "text/html", String encoding = "utf8", String baseUrl = "about:blank", InAppBrowserClassOptions options}) async {
+  Future<void> openData(
+      {@required String data,
+      String mimeType = "text/html",
+      String encoding = "utf8",
+      String baseUrl = "about:blank",
+      InAppBrowserClassOptions options}) async {
     assert(data != null);
 
     Map<String, dynamic> optionsMap = {};
 
     optionsMap.addAll(options.inAppBrowserOptions?.toMap() ?? {});
-    optionsMap.addAll(options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
+    optionsMap.addAll(
+        options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
     if (Platform.isAndroid) {
       optionsMap.addAll(options.androidInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.androidInAppWebViewOptions?.toMap() ?? {});
+      optionsMap.addAll(options
-    }
+              .inAppWebViewWidgetOptions?.androidInAppWebViewOptions
-    else if (Platform.isIOS) {
+              ?.toMap() ??
+          {});
+    } else if (Platform.isIOS) {
       optionsMap.addAll(options.iosInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ?? {});
+      optionsMap.addAll(
+          options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ??
+              {});
     }
 
     Map<String, dynamic> args = <String, dynamic>{};
@@ -233,14 +261,19 @@ class InAppBrowser {
     Map<String, dynamic> optionsMap = {};
 
     optionsMap.addAll(options.inAppBrowserOptions?.toMap() ?? {});
-    optionsMap.addAll(options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
+    optionsMap.addAll(
+        options.inAppWebViewWidgetOptions?.inAppWebViewOptions?.toMap() ?? {});
     if (Platform.isAndroid) {
       optionsMap.addAll(options.androidInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.androidInAppWebViewOptions?.toMap() ?? {});
+      optionsMap.addAll(options
-    }
+              .inAppWebViewWidgetOptions?.androidInAppWebViewOptions
-    else if (Platform.isIOS) {
+              ?.toMap() ??
+          {});
+    } else if (Platform.isIOS) {
       optionsMap.addAll(options.iosInAppBrowserOptions?.toMap() ?? {});
-      optionsMap.addAll(options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ?? {});
+      optionsMap.addAll(
+          options.inAppWebViewWidgetOptions?.iosInAppWebViewOptions?.toMap() ??
+              {});
     }
 
     Map<String, dynamic> args = <String, dynamic>{};
@@ -257,19 +290,27 @@ class InAppBrowser {
     args.putIfAbsent('uuid', () => uuid);
     args.putIfAbsent('optionsType', () => "InAppBrowserOptions");
 
-    InAppBrowserClassOptions inAppBrowserClassOptions = InAppBrowserClassOptions();
+    InAppBrowserClassOptions inAppBrowserClassOptions =
-    Map<dynamic, dynamic> options = await ChannelManager.channel.invokeMethod('getOptions', args);
+        InAppBrowserClassOptions();
+    Map<dynamic, dynamic> options =
+        await ChannelManager.channel.invokeMethod('getOptions', args);
     if (options != null) {
       options = options.cast<String, dynamic>();
-      inAppBrowserClassOptions.inAppBrowserOptions = InAppBrowserOptions.fromMap(options);
+      inAppBrowserClassOptions.inAppBrowserOptions =
-      inAppBrowserClassOptions.inAppWebViewWidgetOptions.inAppWebViewOptions = InAppWebViewOptions.fromMap(options);
+          InAppBrowserOptions.fromMap(options);
+      inAppBrowserClassOptions.inAppWebViewWidgetOptions.inAppWebViewOptions =
+          InAppWebViewOptions.fromMap(options);
       if (Platform.isAndroid) {
-        inAppBrowserClassOptions.androidInAppBrowserOptions = AndroidInAppBrowserOptions.fromMap(options);
+        inAppBrowserClassOptions.androidInAppBrowserOptions =
-        inAppBrowserClassOptions.inAppWebViewWidgetOptions.androidInAppWebViewOptions = AndroidInAppWebViewOptions.fromMap(options);
+            AndroidInAppBrowserOptions.fromMap(options);
-      }
+        inAppBrowserClassOptions
-      else if (Platform.isIOS) {
+                .inAppWebViewWidgetOptions.androidInAppWebViewOptions =
-        inAppBrowserClassOptions.iosInAppBrowserOptions = IosInAppBrowserOptions.fromMap(options);
+            AndroidInAppWebViewOptions.fromMap(options);
-        inAppBrowserClassOptions.inAppWebViewWidgetOptions.iosInAppWebViewOptions = IosInAppWebViewOptions.fromMap(options);
+      } else if (Platform.isIOS) {
+        inAppBrowserClassOptions.iosInAppBrowserOptions =
+            IosInAppBrowserOptions.fromMap(options);
+        inAppBrowserClassOptions.inAppWebViewWidgetOptions
+            .iosInAppWebViewOptions = IosInAppWebViewOptions.fromMap(options);
       }
     }
 
@@ -282,29 +323,19 @@ class InAppBrowser {
   }
 
   ///Event fired when the [InAppBrowser] is created.
-  void onBrowserCreated() {
+  void onBrowserCreated() {}
-
-  }
 
   ///Event fired when the [InAppBrowser] window is closed.
-  void onExit() {
+  void onExit() {}
-
-  }
 
   ///Event fired when the [InAppBrowser] starts to load an [url].
-  void onLoadStart(String url) {
+  void onLoadStart(String url) {}
-
-  }
 
   ///Event fired when the [InAppBrowser] finishes loading an [url].
-  void onLoadStop(String url) {
+  void onLoadStop(String url) {}
-
-  }
 
   ///Event fired when the [InAppBrowser] encounters an error loading an [url].
-  void onLoadError(String url, int code, String message) {
+  void onLoadError(String url, int code, String message) {}
-
-  }
 
   ///Event fired when the [InAppBrowser] main page receives an HTTP error.
   ///
@@ -315,51 +346,37 @@ class InAppBrowser {
   ///[description] represents the description of the HTTP error. On iOS, it is always an empty string.
   ///
   ///**NOTE**: available on Android 23+.
-  void onLoadHttpError(String url, int statusCode, String description) {
+  void onLoadHttpError(String url, int statusCode, String description) {}
-
-  }
 
   ///Event fired when the current [progress] (range 0-100) of loading a page is changed.
-  void onProgressChanged(int progress) {
+  void onProgressChanged(int progress) {}
-
-  }
 
   ///Event fired when the [InAppBrowser] webview receives a [ConsoleMessage].
-  void onConsoleMessage(ConsoleMessage consoleMessage) {
+  void onConsoleMessage(ConsoleMessage consoleMessage) {}
-
-  }
 
   ///Give the host application a chance to take control when a URL is about to be loaded in the current WebView.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useShouldOverrideUrlLoading] option to `true`.
-  void shouldOverrideUrlLoading(String url) {
+  void shouldOverrideUrlLoading(String url) {}
-
-  }
 
   ///Event fired when the [InAppBrowser] webview loads a resource.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useOnLoadResource] and [InAppWebViewOptions.javaScriptEnabled] options to `true`.
-  void onLoadResource(LoadedResource resource) {
+  void onLoadResource(LoadedResource resource) {}
-
-  }
 
   ///Event fired when the [InAppBrowser] webview scrolls.
   ///
   ///[x] represents the current horizontal scroll origin in pixels.
   ///
   ///[y] represents the current vertical scroll origin in pixels.
-  void onScrollChanged(int x, int y) {
+  void onScrollChanged(int x, int y) {}
-
-  }
 
   ///Event fired when [InAppBrowser] recognizes and starts a downloadable file.
   ///
   ///[url] represents the url of the file.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useOnDownloadStart] option to `true`.
-  void onDownloadStart(String url) {
+  void onDownloadStart(String url) {}
-
-  }
 
   ///Event fired when the [InAppBrowser] webview finds the `custom-scheme` while loading a resource. Here you can handle the url request and return a [CustomSchemeResponse] to load a specific resource encoded to `base64`.
   ///
@@ -367,18 +384,15 @@ class InAppBrowser {
   ///
   ///[url] represents the url of the request.
   // ignore: missing_return
-  Future<CustomSchemeResponse> onLoadResourceCustomScheme(String scheme, String url) {
+  Future<CustomSchemeResponse> onLoadResourceCustomScheme(
-
+      String scheme, String url) {}
-  }
 
   ///Event fired when the [InAppBrowser] webview tries to open a link with `target="_blank"`.
   ///
   ///[url] represents the url of the link.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useOnTargetBlank] option to `true`.
-  void onTargetBlank(String url) {
+  void onTargetBlank(String url) {}
-
-  }
 
   ///Event that notifies the host application that web content from the specified origin is attempting to use the Geolocation API, but no permission state is currently set for that origin.
   ///Note that for applications targeting Android N and later SDKs (API level > `Build.VERSION_CODES.M`) this method is only called for requests originating from secure origins such as https.
@@ -388,27 +402,22 @@ class InAppBrowser {
   ///
   ///**NOTE**: available only on Android.
   // ignore: missing_return
-  Future<GeolocationPermissionShowPromptResponse> onGeolocationPermissionsShowPrompt (String origin) {
+  Future<GeolocationPermissionShowPromptResponse>
-
+      onGeolocationPermissionsShowPrompt(String origin) {}
-  }
 
   ///Event fired when javascript calls the `alert()` method to display an alert dialog.
   ///If [JsAlertResponse.handledByClient] is `true`, the webview will assume that the client will handle the dialog.
   ///
   ///[message] represents the message to be displayed in the alert dialog.
   // ignore: missing_return
-  Future<JsAlertResponse> onJsAlert(String message) {
+  Future<JsAlertResponse> onJsAlert(String message) {}
-
-  }
 
   ///Event fired when javascript calls the `confirm()` method to display a confirm dialog.
   ///If [JsConfirmResponse.handledByClient] is `true`, the webview will assume that the client will handle the dialog.
   ///
   ///[message] represents the message to be displayed in the alert dialog.
   // ignore: missing_return
-  Future<JsConfirmResponse> onJsConfirm(String message) {
+  Future<JsConfirmResponse> onJsConfirm(String message) {}
-
-  }
 
   ///Event fired when javascript calls the `prompt()` method to display a prompt dialog.
   ///If [JsPromptResponse.handledByClient] is `true`, the webview will assume that the client will handle the dialog.
@@ -416,9 +425,7 @@ class InAppBrowser {
   ///[message] represents the message to be displayed in the alert dialog.
   ///[defaultValue] represents the default value displayed in the prompt dialog.
   // ignore: missing_return
-  Future<JsPromptResponse> onJsPrompt(String message, String defaultValue) {
+  Future<JsPromptResponse> onJsPrompt(String message, String defaultValue) {}
-
-  }
 
   ///Event fired when the WebView notifies that a loading URL has been flagged by Safe Browsing.
   ///The default behavior is to show an interstitial to the user, with the reporting checkbox visible.
@@ -429,37 +436,33 @@ class InAppBrowser {
   ///
   ///**NOTE**: available only on Android.
   // ignore: missing_return
-  Future<SafeBrowsingResponse> onSafeBrowsingHit(String url, SafeBrowsingThreat threatType) {
+  Future<SafeBrowsingResponse> onSafeBrowsingHit(
-
+      String url, SafeBrowsingThreat threatType) {}
-  }
 
   ///Event fired when the WebView received an HTTP authentication request. The default behavior is to cancel the request.
   ///
   ///[challenge] contains data about host, port, protocol, realm, etc. as specified in the [HttpAuthChallenge].
   // ignore: missing_return
-  Future<HttpAuthResponse> onReceivedHttpAuthRequest(HttpAuthChallenge challenge) {
+  Future<HttpAuthResponse> onReceivedHttpAuthRequest(
-
+      HttpAuthChallenge challenge) {}
-  }
 
   ///Event fired when the WebView need to perform server trust authentication (certificate validation).
   ///The host application must return either [ServerTrustAuthResponse] instance with [ServerTrustAuthResponseAction.CANCEL] or [ServerTrustAuthResponseAction.PROCEED].
   ///
   ///[challenge] contains data about host, port, protocol, realm, etc. as specified in the [ServerTrustChallenge].
   // ignore: missing_return
-  Future<ServerTrustAuthResponse> onReceivedServerTrustAuthRequest(ServerTrustChallenge challenge) {
+  Future<ServerTrustAuthResponse> onReceivedServerTrustAuthRequest(
+      ServerTrustChallenge challenge) {}
 
-  }
+  ///Notify the host application to handle an SSL client certificate request.
-
-  ///Notify the host application to handle a SSL client certificate request.
   ///Webview stores the response in memory (for the life of the application) if [ClientCertResponseAction.PROCEED] or [ClientCertResponseAction.CANCEL]
   ///is called and does not call [onReceivedClientCertRequest] again for the same host and port pair.
   ///Note that, multiple layers in chromium network stack might be caching the responses.
   ///
   ///[challenge] contains data about host, port, protocol, realm, etc. as specified in the [ClientCertChallenge].
   // ignore: missing_return
-  Future<ClientCertResponse> onReceivedClientCertRequest(ClientCertChallenge challenge) {
+  Future<ClientCertResponse> onReceivedClientCertRequest(
-
+      ClientCertChallenge challenge) {}
-  }
 
   ///Event fired as find-on-page operations progress.
   ///The listener may be notified multiple times while the operation is underway, and the numberOfMatches value should not be considered final unless [isDoneCounting] is true.
@@ -469,9 +472,8 @@ class InAppBrowser {
   ///[numberOfMatches] represents how many matches have been found.
   ///
   ///[isDoneCounting] whether the find operation has actually completed.
-  void onFindResultReceived(int activeMatchOrdinal, int numberOfMatches, bool isDoneCounting) {
+  void onFindResultReceived(
-
+      int activeMatchOrdinal, int numberOfMatches, bool isDoneCounting) {}
-  }
 
   ///Event fired when an `XMLHttpRequest` is sent to a server.
   ///It gives the host application a chance to take control over the request before sending it.
@@ -480,9 +482,7 @@ class InAppBrowser {
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useShouldInterceptAjaxRequest] option to `true`.
   // ignore: missing_return
-  Future<AjaxRequest> shouldInterceptAjaxRequest(AjaxRequest ajaxRequest) {
+  Future<AjaxRequest> shouldInterceptAjaxRequest(AjaxRequest ajaxRequest) {}
-
-  }
 
   ///Event fired whenever the `readyState` attribute of an `XMLHttpRequest` changes.
   ///It gives the host application a chance to abort the request.
@@ -491,9 +491,7 @@ class InAppBrowser {
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useShouldInterceptAjaxRequest] option to `true`.
   // ignore: missing_return
-  Future<AjaxRequestAction> onAjaxReadyStateChange(AjaxRequest ajaxRequest) {
+  Future<AjaxRequestAction> onAjaxReadyStateChange(AjaxRequest ajaxRequest) {}
-
-  }
 
   ///Event fired as an `XMLHttpRequest` progress.
   ///It gives the host application a chance to abort the request.
@@ -502,9 +500,7 @@ class InAppBrowser {
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useShouldInterceptAjaxRequest] option to `true`.
   // ignore: missing_return
-  Future<AjaxRequestAction> onAjaxProgress(AjaxRequest ajaxRequest) {
+  Future<AjaxRequestAction> onAjaxProgress(AjaxRequest ajaxRequest) {}
-
-  }
 
   ///Event fired when a request is sent to a server through [Fetch API](https://developer.mozilla.org/it/docs/Web/API/Fetch_API).
   ///It gives the host application a chance to take control over the request before sending it.
@@ -513,9 +509,7 @@ class InAppBrowser {
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useShouldInterceptFetchRequest] option to `true`.
   // ignore: missing_return
-  Future<FetchRequest> shouldInterceptFetchRequest(FetchRequest fetchRequest) {
+  Future<FetchRequest> shouldInterceptFetchRequest(FetchRequest fetchRequest) {}
-
-  }
 
   ///Event fired when the navigation state of the WebView changes throught the usage of
   ///javascript **[History API](https://developer.mozilla.org/en-US/docs/Web/API/History_API)** functions (`pushState()`, `replaceState()`) and `onpopstate` event.
@@ -523,9 +517,7 @@ class InAppBrowser {
   ///Also, the event is fired when the javascript `window.location` changes without reloading the webview (for example appending or modifying an hash to the url).
   ///
   ///[url] represents the new url.
-  void onNavigationStateChange(String url) {
+  void onNavigationStateChange(String url) {}
-
-  }
 
   ///Event fired when the WebView is requesting permission to access the specified resources and the permission currently isn't granted or denied.
   ///
@@ -534,20 +526,23 @@ class InAppBrowser {
   ///[resources] represents the array of resources the web content wants to access.
   ///
   ///**NOTE**: available only on Android 23+.
-  Future<PermissionRequestResponse> onPermissionRequest(String origin, List<String> resources) {
+  // ignore: missing_return
-
+  Future<PermissionRequestResponse> onPermissionRequest(
-  }
+      String origin, List<String> resources) {}
 
   void throwIsAlreadyOpened({String message = ''}) {
     if (this.isOpened()) {
-      throw Exception(['Error: ${ (message.isEmpty) ? '' : message + ' '}The browser is already opened.']);
+      throw Exception([
+        'Error: ${(message.isEmpty) ? '' : message + ' '}The browser is already opened.'
+      ]);
     }
   }
 
   void throwIsNotOpened({String message = ''}) {
     if (!this.isOpened()) {
-      throw Exception(['Error: ${ (message.isEmpty) ? '' : message + ' '}The browser is not opened.']);
+      throw Exception([
+        'Error: ${(message.isEmpty) ? '' : message + ' '}The browser is not opened.'
+      ]);
     }
   }
-
 }

lib/src/in_app_localhost_server.dart

@@ -8,7 +8,6 @@ import 'package:mime/mime.dart';
 ///
 ///This class allows you to create a simple server on `http://localhost:[port]/` in order to be able to load your assets file on a server. The default [port] value is `8080`.
 class InAppLocalhostServer {
-
   HttpServer _server;
   int _port = 8080;
 
@@ -28,7 +27,6 @@ class InAppLocalhostServer {
   ///```
   ///The `NSAllowsLocalNetworking` key is available since **iOS 10**.
   Future<void> start() async {
-
     if (this._server != null) {
       throw Exception('Server already started on http://localhost:$_port');
     }
@@ -48,8 +46,7 @@ class InAppLocalhostServer {
           path += (path.endsWith('/')) ? 'index.html' : '';
 
           try {
-            body = (await rootBundle.load(path))
+            body = (await rootBundle.load(path)).buffer.asUint8List();
-                .buffer.asUint8List();
           } catch (e) {
             print(e.toString());
             request.response.close();
@@ -57,14 +54,17 @@ class InAppLocalhostServer {
           }
 
           var contentType = ['text', 'html'];
-          if (!request.requestedUri.path.endsWith('/') && request.requestedUri.pathSegments.isNotEmpty) {
+          if (!request.requestedUri.path.endsWith('/') &&
-            var mimeType = lookupMimeType(request.requestedUri.path, headerBytes: body);
+              request.requestedUri.pathSegments.isNotEmpty) {
+            var mimeType =
+                lookupMimeType(request.requestedUri.path, headerBytes: body);
             if (mimeType != null) {
               contentType = mimeType.split('/');
             }
           }
 
-          request.response.headers.contentType = new ContentType(contentType[0], contentType[1], charset: 'utf-8');
+          request.response.headers.contentType =
+              new ContentType(contentType[0], contentType[1], charset: 'utf-8');
           request.response.add(body);
           request.response.close();
         });
@@ -84,5 +84,4 @@ class InAppLocalhostServer {
       this._server = null;
     }
   }
-
 }

lib/src/in_app_webview.dart

@@ -16,24 +16,31 @@ import 'types.dart';
 import 'in_app_browser.dart';
 import 'webview_options.dart';
 
-const javaScriptHandlerForbiddenNames = ["onLoadResource", "shouldInterceptAjaxRequest", "onAjaxReadyStateChange", "onAjaxProgress", "shouldInterceptFetchRequest"];
+const javaScriptHandlerForbiddenNames = [
+  "onLoadResource",
+  "shouldInterceptAjaxRequest",
+  "onAjaxReadyStateChange",
+  "onAjaxProgress",
+  "shouldInterceptFetchRequest"
+];
 
 ///InAppWebView Widget class.
 ///
 ///Flutter Widget for adding an **inline native WebView** integrated in the flutter widget tree.
 class InAppWebView extends StatefulWidget {
-
   ///Event fired when the [InAppWebView] is created.
   final void Function(InAppWebViewController controller) onWebViewCreated;
 
   ///Event fired when the [InAppWebView] starts to load an [url].
-  final void Function(InAppWebViewController controller, String url) onLoadStart;
+  final void Function(InAppWebViewController controller, String url)
+      onLoadStart;
 
   ///Event fired when the [InAppWebView] finishes loading an [url].
   final void Function(InAppWebViewController controller, String url) onLoadStop;
 
   ///Event fired when the [InAppWebView] encounters an error loading an [url].
-  final void Function(InAppWebViewController controller, String url, int code, String message) onLoadError;
+  final void Function(InAppWebViewController controller, String url, int code,
+      String message) onLoadError;
 
   ///Event fired when the [InAppWebView] main page receives an HTTP error.
   ///
@@ -44,51 +51,63 @@ class InAppWebView extends StatefulWidget {
   ///[description] represents the description of the HTTP error. On iOS, it is always an empty string.
   ///
   ///**NOTE**: available on Android 23+.
-  final void Function(InAppWebViewController controller, String url, int statusCode, String description) onLoadHttpError;
+  final void Function(InAppWebViewController controller, String url,
+      int statusCode, String description) onLoadHttpError;
 
   ///Event fired when the current [progress] of loading a page is changed.
-  final void Function(InAppWebViewController controller, int progress) onProgressChanged;
+  final void Function(InAppWebViewController controller, int progress)
+      onProgressChanged;
 
   ///Event fired when the [InAppWebView] receives a [ConsoleMessage].
-  final void Function(InAppWebViewController controller, ConsoleMessage consoleMessage) onConsoleMessage;
+  final void Function(
+          InAppWebViewController controller, ConsoleMessage consoleMessage)
+      onConsoleMessage;
 
   ///Give the host application a chance to take control when a URL is about to be loaded in the current WebView.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useShouldOverrideUrlLoading] option to `true`.
-  final void Function(InAppWebViewController controller, String url) shouldOverrideUrlLoading;
+  final void Function(InAppWebViewController controller, String url)
+      shouldOverrideUrlLoading;
 
   ///Event fired when the [InAppWebView] loads a resource.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useOnLoadResource] and [InAppWebViewOptions.javaScriptEnabled] options to `true`.
-  final void Function(InAppWebViewController controller, LoadedResource resource) onLoadResource;
+  final void Function(
+          InAppWebViewController controller, LoadedResource resource)
+      onLoadResource;
 
   ///Event fired when the [InAppWebView] scrolls.
   ///
   ///[x] represents the current horizontal scroll origin in pixels.
   ///
   ///[y] represents the current vertical scroll origin in pixels.
-  final void Function(InAppWebViewController controller, int x, int y) onScrollChanged;
+  final void Function(InAppWebViewController controller, int x, int y)
+      onScrollChanged;
 
   ///Event fired when [InAppWebView] recognizes and starts a downloadable file.
   ///
   ///[url] represents the url of the file.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useOnDownloadStart] option to `true`.
-  final void Function(InAppWebViewController controller, String url) onDownloadStart;
+  final void Function(InAppWebViewController controller, String url)
+      onDownloadStart;
 
   ///Event fired when the [InAppWebView] finds the `custom-scheme` while loading a resource. Here you can handle the url request and return a [CustomSchemeResponse] to load a specific resource encoded to `base64`.
   ///
   ///[scheme] represents the scheme of the url.
   ///
   ///[url] represents the url of the request.
-  final Future<CustomSchemeResponse> Function(InAppWebViewController controller, String scheme, String url) onLoadResourceCustomScheme;
+  final Future<CustomSchemeResponse> Function(
+          InAppWebViewController controller, String scheme, String url)
+      onLoadResourceCustomScheme;
 
   ///Event fired when the [InAppWebView] tries to open a link with `target="_blank"`.
   ///
   ///[url] represents the url of the link.
   ///
   ///**NOTE**: In order to be able to listen this event, you need to set [InAppWebViewOptions.useOnTargetBlank] option to `true`.
-  final void Function(InAppWebViewController controller, String url) onTargetBlank;
+  final void Function(InAppWebViewController controller, String url)
+      onTargetBlank;
 
   ///Event that notifies the host application that web content from the specified origin is attempting to use the Geolocation API, but no permission state is currently set for that origin.
   ///Note that for applications targeting Android N and later SDKs (API level > `Build.VERSION_CODES.M`) this method is only called for requests originating from secure origins such as https.
@@ -97,19 +116,23 @@ class InAppWebView extends StatefulWidget {
   ///[origin] represents the origin of the web content attempting to use the Geolocation API.
   ///
   ///**NOTE**: available only on Android.
-  final Future<GeolocationPermissionShowPromptResponse> Function(InAppWebViewController controller, String origin) onGeolocationPermissionsShowPrompt;
+  final Future<GeolocationPermissionShowPromptResponse> Function(
+          InAppWebViewController controller, String origin)
+      onGeolocationPermissionsShowPrompt;
 
   ///Event fired when javascript calls the `alert()` method to display an alert dialog.
   ///If [JsAlertResponse.handledByClient] is `true`, the webview will assume that the client will handle the dialog.
   ///
   ///[message] represents the message to be displayed in the alert dialog.
-  final Future<JsAlertResponse> Function(InAppWebViewController controller, String message) onJsAlert;
+  final Future<JsAlertResponse> Function(
+      InAppWebViewController controller, String message) onJsAlert;
 
   ///Event fired when javascript calls the `confirm()` method to display a confirm dialog.
   ///If [JsConfirmResponse.handledByClient] is `true`, the webview will assume that the client will handle the dialog.
   ///
   ///[message] represents the message to be displayed in the alert dialog.
-  final Future<JsConfirmResponse> Function(InAppWebViewController controller, String message) onJsConfirm;
+  final Future<JsConfirmResponse> Function(
+      InAppWebViewController controller, String message) onJsConfirm;
 
   ///Event fired when javascript calls the `prompt()` method to display a prompt dialog.
   ///If [JsPromptResponse.handledByClient] is `true`, the webview will assume that the client will handle the dialog.
@@ -117,7 +140,8 @@ class InAppWebView extends StatefulWidget {
   ///[message] represents the message to be displayed in the alert dialog.
   ///
   ///[defaultValue] represents the default value displayed in the prompt dialog.
-  final Future<JsPromptResponse> Function(InAppWebViewController controller, String message, String defaultValue) onJsPrompt;
+  final Future<JsPromptResponse> Function(InAppWebViewController controller,
+      String message, String defaultValue) onJsPrompt;
 
   ///Event fired when the webview notifies that a loading URL has been flagged by Safe Browsing.
   ///The default behavior is to show an interstitial to the user, with the reporting checkbox visible.
@@ -127,26 +151,33 @@ class InAppWebView extends StatefulWidget {
   ///[threatType] represents the reason the resource was caught by Safe Browsing, corresponding to a [SafeBrowsingThreat].
   ///
   ///**NOTE**: available only on Android.
-  final Future<SafeBrowsingResponse> Function(InAppWebViewController controller, String url, SafeBrowsingThreat threatType) onSafeBrowsingHit;
+  final Future<SafeBrowsingResponse> Function(InAppWebViewController controller,
+      String url, SafeBrowsingThreat threatType) onSafeBrowsingHit;
 
   ///Event fired when the WebView received an HTTP authentication request. The default behavior is to cancel the request.
   ///
   ///[challenge] contains data about host, port, protocol, realm, etc. as specified in the [HttpAuthChallenge].
-  final Future<HttpAuthResponse> Function(InAppWebViewController controller, HttpAuthChallenge challenge) onReceivedHttpAuthRequest;
+  final Future<HttpAuthResponse> Function(
+          InAppWebViewController controller, HttpAuthChallenge challenge)
+      onReceivedHttpAuthRequest;
 
   ///Event fired when the WebView need to perform server trust authentication (certificate validation).
   ///The host application must return either [ServerTrustAuthResponse] instance with [ServerTrustAuthResponseAction.CANCEL] or [ServerTrustAuthResponseAction.PROCEED].
   ///
   ///[challenge] contains data about host, port, protocol, realm, etc. as specified in the [ServerTrustChallenge].
-  final Future<ServerTrustAuthResponse> Function(InAppWebViewController controller, ServerTrustChallenge challenge) onReceivedServerTrustAuthRequest;
+  final Future<ServerTrustAuthResponse> Function(
+          InAppWebViewController controller, ServerTrustChallenge challenge)
+      onReceivedServerTrustAuthRequest;
 
-  ///Notify the host application to handle a SSL client certificate request.
+  ///Notify the host application to handle an SSL client certificate request.
   ///Webview stores the response in memory (for the life of the application) if [ClientCertResponseAction.PROCEED] or [ClientCertResponseAction.CANCEL]
   ///is called and does not call [onReceivedClientCertRequest] again for the same host and port pair.
   ///Note that, multiple layers in chromium network stack might be caching the responses.
   ///
   ///[challenge] contains data about host, port, protocol, realm, etc. as specified in the [ClientCertChallenge].
-  final Future<ClientCertResponse> Function(InAppWebViewController controller, ClientCertChallenge challenge) onReceivedClientCertRequest;
+  final Future<ClientCertResponse> Function(
+          InAppWebViewController controller, ClientCertChallenge challenge)
+      onReceivedClientCertRequest;
 
   ///Event fired as find-on-page operations progress.
   ///The listener may be notified multiple times while the operation is underway, and the numberOfMatches value should not be considered final unless [isDoneCounting] is true.
@@ -156,7 +187,8 @@ class InAppWebView extends StatefulWidget {
   ///[numberOfMatches] represents how many matches have been found.
   ///
   ///[isDoneCounting] whether the find operation has actually completed.
-  final void Function(InAppWebViewController controller, int activeMatchOrdinal, int numberOfMatches, bool isDoneCounting) onFindResultReceived;
+  final void Function(InAppWebViewController controller, int activeMatchOrdinal,
+      int numberOfMatches, bool isDoneCounting) onFindResultReceived;
 
   ///Event fired when an `XMLHttpRequest` is sent to a server.
   ///It gives the host application a chance to take control over the request before sending it.
@@ -168,7 +200,9 @@ class InAppWebView extends StatefulWidget {
   ///can inject javascript code right after the document element is created but before any other content is loaded, in Android the javascript code
   ///used to intercept ajax requests is loaded as soon as possible so it won't be instantaneous as iOS but just after some milliseconds (< ~100ms).
   ///Inside the `window.addEventListener("flutterInAppWebViewPlatformReady")` event, the ajax requests will be intercept for sure.
-  final Future<AjaxRequest> Function(InAppWebViewController controller, AjaxRequest ajaxRequest) shouldInterceptAjaxRequest;
+  final Future<AjaxRequest> Function(
+          InAppWebViewController controller, AjaxRequest ajaxRequest)
+      shouldInterceptAjaxRequest;
 
   ///Event fired whenever the `readyState` attribute of an `XMLHttpRequest` changes.
   ///It gives the host application a chance to abort the request.
@@ -180,7 +214,9 @@ class InAppWebView extends StatefulWidget {
   ///can inject javascript code right after the document element is created but before any other content is loaded, in Android the javascript code
   ///used to intercept ajax requests is loaded as soon as possible so it won't be instantaneous as iOS but just after some milliseconds (< ~100ms).
   ///Inside the `window.addEventListener("flutterInAppWebViewPlatformReady")` event, the ajax requests will be intercept for sure.
-  final Future<AjaxRequestAction> Function(InAppWebViewController controller, AjaxRequest ajaxRequest) onAjaxReadyStateChange;
+  final Future<AjaxRequestAction> Function(
+          InAppWebViewController controller, AjaxRequest ajaxRequest)
+      onAjaxReadyStateChange;
 
   ///Event fired as an `XMLHttpRequest` progress.
   ///It gives the host application a chance to abort the request.
@@ -192,7 +228,9 @@ class InAppWebView extends StatefulWidget {
   ///can inject javascript code right after the document element is created but before any other content is loaded, in Android the javascript code
   ///used to intercept ajax requests is loaded as soon as possible so it won't be instantaneous as iOS but just after some milliseconds (< ~100ms).
   ///Inside the `window.addEventListener("flutterInAppWebViewPlatformReady")` event, the ajax requests will be intercept for sure.
-  final Future<AjaxRequestAction> Function(InAppWebViewController controller, AjaxRequest ajaxRequest) onAjaxProgress;
+  final Future<AjaxRequestAction> Function(
+          InAppWebViewController controller, AjaxRequest ajaxRequest)
+      onAjaxProgress;
 
   ///Event fired when a request is sent to a server through [Fetch API](https://developer.mozilla.org/it/docs/Web/API/Fetch_API).
   ///It gives the host application a chance to take control over the request before sending it.
@@ -204,7 +242,9 @@ class InAppWebView extends StatefulWidget {
   ///can inject javascript code right after the document element is created but before any other content is loaded, in Android the javascript code
   ///used to intercept fetch requests is loaded as soon as possible so it won't be instantaneous as iOS but just after some milliseconds (< ~100ms).
   ///Inside the `window.addEventListener("flutterInAppWebViewPlatformReady")` event, the fetch requests will be intercept for sure.
-  final Future<FetchRequest> Function(InAppWebViewController controller, FetchRequest fetchRequest) shouldInterceptFetchRequest;
+  final Future<FetchRequest> Function(
+          InAppWebViewController controller, FetchRequest fetchRequest)
+      shouldInterceptFetchRequest;
 
   ///Event fired when the navigation state of the [InAppWebView] changes throught the usage of
   ///javascript **[History API](https://developer.mozilla.org/en-US/docs/Web/API/History_API)** functions (`pushState()`, `replaceState()`) and `onpopstate` event.
@@ -212,7 +252,8 @@ class InAppWebView extends StatefulWidget {
   ///Also, the event is fired when the javascript `window.location` changes without reloading the webview (for example appending or modifying an hash to the url).
   ///
   ///[url] represents the new url.
-  final void Function(InAppWebViewController controller, String url) onNavigationStateChange;
+  final void Function(InAppWebViewController controller, String url)
+      onNavigationStateChange;
 
   ///Event fired when the WebView is requesting permission to access the specified resources and the permission currently isn't granted or denied.
   ///
@@ -221,18 +262,26 @@ class InAppWebView extends StatefulWidget {
   ///[resources] represents the array of resources the web content wants to access.
   ///
   ///**NOTE**: available only on Android 23+.
-  final Future<PermissionRequestResponse> Function(InAppWebViewController controller, String origin, List<String> resources) onPermissionRequest;
+  final Future<PermissionRequestResponse> Function(
+      InAppWebViewController controller,
+      String origin,
+      List<String> resources) onPermissionRequest;
 
   ///Initial url that will be loaded.
   final String initialUrl;
+
   ///Initial asset file that will be loaded. See [InAppWebView.loadFile()] for explanation.
   final String initialFile;
+
   ///Initial [InAppWebViewInitialData] that will be loaded.
   final InAppWebViewInitialData initialData;
+
   ///Initial headers that will be used.
   final Map<String, String> initialHeaders;
+
   ///Initial options that will be used.
   final InAppWebViewWidgetOptions initialOptions;
+
   /// `gestureRecognizers` specifies which gestures should be consumed by the web view.
   /// It is possible for other gesture recognizers to be competing with the web view on pointer
   /// events, e.g if the web view is inside a [ListView] the [ListView] will want to handle
@@ -248,7 +297,7 @@ class InAppWebView extends StatefulWidget {
     this.initialFile,
     this.initialData,
     this.initialHeaders = const {},
-    this.initialOptions,
+    @required this.initialOptions,
     this.onWebViewCreated,
     this.onLoadStart,
     this.onLoadStop,
@@ -285,17 +334,19 @@ class InAppWebView extends StatefulWidget {
 }
 
 class _InAppWebViewState extends State<InAppWebView> {
-
   InAppWebViewController _controller;
 
   @override
   Widget build(BuildContext context) {
     Map<String, dynamic> initialOptions = {};
-    initialOptions.addAll(widget.initialOptions.inAppWebViewOptions?.toMap() ?? {});
+    initialOptions
+        .addAll(widget.initialOptions.inAppWebViewOptions?.toMap() ?? {});
     if (Platform.isAndroid)
-      initialOptions.addAll(widget.initialOptions.androidInAppWebViewOptions?.toMap() ?? {});
+      initialOptions.addAll(
+          widget.initialOptions.androidInAppWebViewOptions?.toMap() ?? {});
     else if (Platform.isIOS)
-      initialOptions.addAll(widget.initialOptions.iosInAppWebViewOptions?.toMap() ?? {});
+      initialOptions
+          .addAll(widget.initialOptions.iosInAppWebViewOptions?.toMap() ?? {});
 
     if (defaultTargetPlatform == TargetPlatform.android) {
       return AndroidView(
@@ -356,7 +407,7 @@ class _InAppWebViewState extends State<InAppWebView> {
   }
 
   @override
-  void dispose(){
+  void dispose() {
     super.dispose();
   }
 
@@ -373,10 +424,10 @@ class _InAppWebViewState extends State<InAppWebView> {
 /// An [InAppWebViewController] instance can be obtained by setting the [InAppWebView.onWebViewCreated]
 /// callback for an [InAppWebView] widget.
 class InAppWebViewController {
-
   InAppWebView _widget;
   MethodChannel _channel;
-  Map<String, JavaScriptHandlerCallback> javaScriptHandlersMap = HashMap<String, JavaScriptHandlerCallback>();
+  Map<String, JavaScriptHandlerCallback> javaScriptHandlersMap =
+      HashMap<String, JavaScriptHandlerCallback>();
   // ignore: unused_field
   bool _isOpened = false;
   // ignore: unused_field
@@ -384,35 +435,34 @@ class InAppWebViewController {
   String _inAppBrowserUuid;
   InAppBrowser _inAppBrowser;
 
-
   InAppWebViewController(int id, InAppWebView widget) {
     this._id = id;
-    this._channel = MethodChannel('com.pichillilorenzo/flutter_inappwebview_$id');
+    this._channel =
+        MethodChannel('com.pichillilorenzo/flutter_inappwebview_$id');
     this._channel.setMethodCallHandler(handleMethod);
     this._widget = widget;
   }
 
-  InAppWebViewController.fromInAppBrowser(String uuid, MethodChannel channel, InAppBrowser inAppBrowser) {
+  InAppWebViewController.fromInAppBrowser(
+      String uuid, MethodChannel channel, InAppBrowser inAppBrowser) {
     this._inAppBrowserUuid = uuid;
     this._channel = channel;
     this._inAppBrowser = inAppBrowser;
   }
 
   Future<dynamic> handleMethod(MethodCall call) async {
-    switch(call.method) {
+    switch (call.method) {
       case "onLoadStart":
         String url = call.arguments["url"];
         if (_widget != null && _widget.onLoadStart != null)
           _widget.onLoadStart(this, url);
-        else if (_inAppBrowser != null)
+        else if (_inAppBrowser != null) _inAppBrowser.onLoadStart(url);
-          _inAppBrowser.onLoadStart(url);
         break;
       case "onLoadStop":
         String url = call.arguments["url"];
         if (_widget != null && _widget.onLoadStop != null)
           _widget.onLoadStop(this, url);
-        else if (_inAppBrowser != null)
+        else if (_inAppBrowser != null) _inAppBrowser.onLoadStop(url);
-          _inAppBrowser.onLoadStop(url);
         break;
       case "onLoadError":
         String url = call.arguments["url"];
@@ -448,8 +498,10 @@ class InAppWebViewController {
         break;
       case "onConsoleMessage":
         String message = call.arguments["message"];
-        ConsoleMessageLevel messageLevel = ConsoleMessageLevel.fromValue(call.arguments["messageLevel"]);
+        ConsoleMessageLevel messageLevel =
-        ConsoleMessage consoleMessage = ConsoleMessage(message: message, messageLevel: messageLevel);
+            ConsoleMessageLevel.fromValue(call.arguments["messageLevel"]);
+        ConsoleMessage consoleMessage =
+            ConsoleMessage(message: message, messageLevel: messageLevel);
         if (_widget != null && _widget.onConsoleMessage != null)
           _widget.onConsoleMessage(this, consoleMessage);
         else if (_inAppBrowser != null)
@@ -460,31 +512,31 @@ class InAppWebViewController {
         int y = call.arguments["y"];
         if (_widget != null && _widget.onScrollChanged != null)
           _widget.onScrollChanged(this, x, y);
-        else if (_inAppBrowser != null)
+        else if (_inAppBrowser != null) _inAppBrowser.onScrollChanged(x, y);
-          _inAppBrowser.onScrollChanged(x, y);
         break;
       case "onDownloadStart":
         String url = call.arguments["url"];
         if (_widget != null && _widget.onDownloadStart != null)
           _widget.onDownloadStart(this, url);
-        else if (_inAppBrowser != null)
+        else if (_inAppBrowser != null) _inAppBrowser.onDownloadStart(url);
-          _inAppBrowser.onDownloadStart(url);
         break;
       case "onLoadResourceCustomScheme":
         String scheme = call.arguments["scheme"];
         String url = call.arguments["url"];
         if (_widget != null && _widget.onLoadResourceCustomScheme != null) {
           try {
-            var response = await _widget.onLoadResourceCustomScheme(this, scheme, url);
+            var response =
-            return (response != null) ? response.toJson(): null;
+                await _widget.onLoadResourceCustomScheme(this, scheme, url);
+            return (response != null) ? response.toJson() : null;
           } catch (error) {
             print(error);
             return null;
           }
         } else if (_inAppBrowser != null) {
           try {
-            var response = await _inAppBrowser.onLoadResourceCustomScheme(scheme, url);
+            var response =
-            return (response != null) ? response.toJson(): null;
+                await _inAppBrowser.onLoadResourceCustomScheme(scheme, url);
+            return (response != null) ? response.toJson() : null;
           } catch (error) {
             print(error);
             return null;
@@ -495,15 +547,19 @@ class InAppWebViewController {
         String url = call.arguments["url"];
         if (_widget != null && _widget.onTargetBlank != null)
           _widget.onTargetBlank(this, url);
-        else if (_inAppBrowser != null)
+        else if (_inAppBrowser != null) _inAppBrowser.onTargetBlank(url);
-          _inAppBrowser.onTargetBlank(url);
         break;
       case "onGeolocationPermissionsShowPrompt":
         String origin = call.arguments["origin"];
-        if (_widget != null && _widget.onGeolocationPermissionsShowPrompt != null)
+        if (_widget != null &&
-          return (await _widget.onGeolocationPermissionsShowPrompt(this, origin))?.toMap();
+            _widget.onGeolocationPermissionsShowPrompt != null)
+          return (await _widget.onGeolocationPermissionsShowPrompt(
+                  this, origin))
+              ?.toMap();
         else if (_inAppBrowser != null)
-          return (await _inAppBrowser.onGeolocationPermissionsShowPrompt(origin))?.toMap();
+          return (await _inAppBrowser
+                  .onGeolocationPermissionsShowPrompt(origin))
+              ?.toMap();
         break;
       case "onJsAlert":
         String message = call.arguments["message"];
@@ -523,17 +579,22 @@ class InAppWebViewController {
         String message = call.arguments["message"];
         String defaultValue = call.arguments["defaultValue"];
         if (_widget != null && _widget.onJsPrompt != null)
-          return (await _widget.onJsPrompt(this, message, defaultValue))?.toMap();
+          return (await _widget.onJsPrompt(this, message, defaultValue))
+              ?.toMap();
         else if (_inAppBrowser != null)
-          return (await _inAppBrowser.onJsPrompt(message, defaultValue))?.toMap();
+          return (await _inAppBrowser.onJsPrompt(message, defaultValue))
+              ?.toMap();
         break;
       case "onSafeBrowsingHit":
         String url = call.arguments["url"];
-        SafeBrowsingThreat threatType = SafeBrowsingThreat.fromValue(call.arguments["threatType"]);
+        SafeBrowsingThreat threatType =
+            SafeBrowsingThreat.fromValue(call.arguments["threatType"]);
         if (_widget != null && _widget.onSafeBrowsingHit != null)
-          return (await _widget.onSafeBrowsingHit(this, url, threatType))?.toMap();
+          return (await _widget.onSafeBrowsingHit(this, url, threatType))
+              ?.toMap();
         else if (_inAppBrowser != null)
-          return (await _inAppBrowser.onSafeBrowsingHit(url, threatType))?.toMap();
+          return (await _inAppBrowser.onSafeBrowsingHit(url, threatType))
+              ?.toMap();
         break;
       case "onReceivedHttpAuthRequest":
         String host = call.arguments["host"];
@@ -541,12 +602,17 @@ class InAppWebViewController {
         String realm = call.arguments["realm"];
         int port = call.arguments["port"];
         int previousFailureCount = call.arguments["previousFailureCount"];
-        var protectionSpace = ProtectionSpace(host: host, protocol: protocol, realm: realm, port: port);
+        var protectionSpace = ProtectionSpace(
-        var challenge = HttpAuthChallenge(previousFailureCount: previousFailureCount, protectionSpace: protectionSpace);
+            host: host, protocol: protocol, realm: realm, port: port);
+        var challenge = HttpAuthChallenge(
+            previousFailureCount: previousFailureCount,
+            protectionSpace: protectionSpace);
         if (_widget != null && _widget.onReceivedHttpAuthRequest != null)
-          return (await _widget.onReceivedHttpAuthRequest(this, challenge))?.toMap();
+          return (await _widget.onReceivedHttpAuthRequest(this, challenge))
+              ?.toMap();
         else if (_inAppBrowser != null)
-          return (await _inAppBrowser.onReceivedHttpAuthRequest(challenge))?.toMap();
+          return (await _inAppBrowser.onReceivedHttpAuthRequest(challenge))
+              ?.toMap();
         break;
       case "onReceivedServerTrustAuthRequest":
         String host = call.arguments["host"];
@@ -556,33 +622,47 @@ class InAppWebViewController {
         int error = call.arguments["error"];
         String message = call.arguments["message"];
         Uint8List serverCertificate = call.arguments["serverCertificate"];
-        var protectionSpace = ProtectionSpace(host: host, protocol: protocol, realm: realm, port: port);
+        var protectionSpace = ProtectionSpace(
-        var challenge = ServerTrustChallenge(protectionSpace: protectionSpace, error: error, message: message, serverCertificate: serverCertificate);
+            host: host, protocol: protocol, realm: realm, port: port);
+        var challenge = ServerTrustChallenge(
+            protectionSpace: protectionSpace,
+            error: error,
+            message: message,
+            serverCertificate: serverCertificate);
         if (_widget != null && _widget.onReceivedServerTrustAuthRequest != null)
-          return (await _widget.onReceivedServerTrustAuthRequest(this, challenge))?.toMap();
+          return (await _widget.onReceivedServerTrustAuthRequest(
+                  this, challenge))
+              ?.toMap();
         else if (_inAppBrowser != null)
-          return (await _inAppBrowser.onReceivedServerTrustAuthRequest(challenge))?.toMap();
+          return (await _inAppBrowser
+                  .onReceivedServerTrustAuthRequest(challenge))
+              ?.toMap();
         break;
       case "onReceivedClientCertRequest":
         String host = call.arguments["host"];
         String protocol = call.arguments["protocol"];
         String realm = call.arguments["realm"];
         int port = call.arguments["port"];
-        var protectionSpace = ProtectionSpace(host: host, protocol: protocol, realm: realm, port: port);
+        var protectionSpace = ProtectionSpace(
+            host: host, protocol: protocol, realm: realm, port: port);
         var challenge = ClientCertChallenge(protectionSpace: protectionSpace);
         if (_widget != null && _widget.onReceivedClientCertRequest != null)
-          return (await _widget.onReceivedClientCertRequest(this, challenge))?.toMap();
+          return (await _widget.onReceivedClientCertRequest(this, challenge))
+              ?.toMap();
         else if (_inAppBrowser != null)
-          return (await _inAppBrowser.onReceivedClientCertRequest(challenge))?.toMap();
+          return (await _inAppBrowser.onReceivedClientCertRequest(challenge))
+              ?.toMap();
         break;
       case "onFindResultReceived":
         int activeMatchOrdinal = call.arguments["activeMatchOrdinal"];
         int numberOfMatches = call.arguments["numberOfMatches"];
         bool isDoneCounting = call.arguments["isDoneCounting"];
         if (_widget != null && _widget.onFindResultReceived != null)
-          _widget.onFindResultReceived(this, activeMatchOrdinal, numberOfMatches, isDoneCounting);
+          _widget.onFindResultReceived(
+              this, activeMatchOrdinal, numberOfMatches, isDoneCounting);
         else if (_inAppBrowser != null)
-          _inAppBrowser.onFindResultReceived(activeMatchOrdinal, numberOfMatches, isDoneCounting);
+          _inAppBrowser.onFindResultReceived(
+              activeMatchOrdinal, numberOfMatches, isDoneCounting);
         break;
       case "onNavigationStateChange":
         String url = call.arguments["url"];
@@ -595,24 +675,34 @@ class InAppWebViewController {
         String origin = call.arguments["origin"];
         List<String> resources = call.arguments["resources"].cast<String>();
         if (_widget != null && _widget.onPermissionRequest != null)
-          return (await _widget.onPermissionRequest(this, origin, resources))?.toMap();
+          return (await _widget.onPermissionRequest(this, origin, resources))
+              ?.toMap();
         else if (_inAppBrowser != null)
-          return (await  _inAppBrowser.onPermissionRequest(origin, resources))?.toMap();
+          return (await _inAppBrowser.onPermissionRequest(origin, resources))
+              ?.toMap();
         break;
       case "onCallJsHandler":
         String handlerName = call.arguments["handlerName"];
         // decode args to json
         List<dynamic> args = jsonDecode(call.arguments["args"]);
 
-        switch(handlerName) {
+        switch (handlerName) {
           case "onLoadResource":
             Map<dynamic, dynamic> argMap = args[0];
             String initiatorType = argMap["initiatorType"];
             String url = argMap["name"];
-            double startTime = argMap["startTime"] is int ? argMap["startTime"].toDouble() : argMap["startTime"];
+            double startTime = argMap["startTime"] is int
-            double duration = argMap["duration"] is int ? argMap["duration"].toDouble() : argMap["duration"];
+                ? argMap["startTime"].toDouble()
+                : argMap["startTime"];
+            double duration = argMap["duration"] is int
+                ? argMap["duration"].toDouble()
+                : argMap["duration"];
 
-            var response = new LoadedResource(initiatorType: initiatorType, url: url, startTime: startTime, duration: duration);
+            var response = new LoadedResource(
+                initiatorType: initiatorType,
+                url: url,
+                startTime: startTime,
+                duration: duration);
 
             if (_widget != null && _widget.onLoadResource != null)
               _widget.onLoadResource(this, response);
@@ -631,12 +721,23 @@ class InAppWebViewController {
             AjaxRequestHeaders headers = AjaxRequestHeaders(argMap["headers"]);
             String responseType = argMap["responseType"];
 
-            var request = new AjaxRequest(data: data, method: method, url: url, isAsync: isAsync, user: user, password: password, withCredentials: withCredentials, headers: headers, responseType: responseType);
+            var request = new AjaxRequest(
+                data: data,
+                method: method,
+                url: url,
+                isAsync: isAsync,
+                user: user,
+                password: password,
+                withCredentials: withCredentials,
+                headers: headers,
+                responseType: responseType);
 
             if (_widget != null && _widget.shouldInterceptAjaxRequest != null)
-              return jsonEncode(await _widget.shouldInterceptAjaxRequest(this, request));
+              return jsonEncode(
+                  await _widget.shouldInterceptAjaxRequest(this, request));
             else if (_inAppBrowser != null)
-              return jsonEncode(await _inAppBrowser.shouldInterceptAjaxRequest(request));
+              return jsonEncode(
+                  await _inAppBrowser.shouldInterceptAjaxRequest(request));
             return null;
           case "onAjaxReadyStateChange":
             Map<dynamic, dynamic> argMap = args[0];
@@ -658,14 +759,31 @@ class InAppWebViewController {
             String statusText = argMap["statusText"];
             Map<dynamic, dynamic> responseHeaders = argMap["responseHeaders"];
 
-            var request = new AjaxRequest(data: data, method: method, url: url, isAsync: isAsync, user: user, password: password,
+            var request = new AjaxRequest(
-                withCredentials: withCredentials, headers: headers, readyState: AjaxRequestReadyState.fromValue(readyState), status: status, responseURL: responseURL,
+                data: data,
-                responseType: responseType, response: response, responseText: responseText, responseXML: responseXML, statusText: statusText, responseHeaders: responseHeaders);
+                method: method,
+                url: url,
+                isAsync: isAsync,
+                user: user,
+                password: password,
+                withCredentials: withCredentials,
+                headers: headers,
+                readyState: AjaxRequestReadyState.fromValue(readyState),
+                status: status,
+                responseURL: responseURL,
+                responseType: responseType,
+                response: response,
+                responseText: responseText,
+                responseXML: responseXML,
+                statusText: statusText,
+                responseHeaders: responseHeaders);
 
             if (_widget != null && _widget.onAjaxReadyStateChange != null)
-              return jsonEncode(await _widget.onAjaxReadyStateChange(this, request));
+              return jsonEncode(
+                  await _widget.onAjaxReadyStateChange(this, request));
             else if (_inAppBrowser != null)
-              return jsonEncode(await _inAppBrowser.onAjaxReadyStateChange(request));
+              return jsonEncode(
+                  await _inAppBrowser.onAjaxReadyStateChange(request));
             return null;
           case "onAjaxProgress":
             Map<dynamic, dynamic> argMap = args[0];
@@ -688,11 +806,31 @@ class InAppWebViewController {
             Map<dynamic, dynamic> responseHeaders = argMap["responseHeaders"];
             Map<dynamic, dynamic> eventMap = argMap["event"];
 
-            AjaxRequestEvent event = AjaxRequestEvent(lengthComputable: eventMap["lengthComputable"], loaded: eventMap["loaded"], total: eventMap["total"], type: AjaxRequestEventType.fromValue(eventMap["type"]));
+            AjaxRequestEvent event = AjaxRequestEvent(
+                lengthComputable: eventMap["lengthComputable"],
+                loaded: eventMap["loaded"],
+                total: eventMap["total"],
+                type: AjaxRequestEventType.fromValue(eventMap["type"]));
 
-            var request = new AjaxRequest(data: data, method: method, url: url, isAsync: isAsync, user: user, password: password,
+            var request = new AjaxRequest(
-                withCredentials: withCredentials, headers: headers, readyState: AjaxRequestReadyState.fromValue(readyState), status: status, responseURL: responseURL,
+                data: data,
-                responseType: responseType, response: response, responseText: responseText, responseXML: responseXML, statusText: statusText, responseHeaders: responseHeaders, event: event);
+                method: method,
+                url: url,
+                isAsync: isAsync,
+                user: user,
+                password: password,
+                withCredentials: withCredentials,
+                headers: headers,
+                readyState: AjaxRequestReadyState.fromValue(readyState),
+                status: status,
+                responseURL: responseURL,
+                responseType: responseType,
+                response: response,
+                responseText: responseText,
+                responseXML: responseXML,
+                statusText: statusText,
+                responseHeaders: responseHeaders,
+                event: event);
 
             if (_widget != null && _widget.onAjaxProgress != null)
               return jsonEncode(await _widget.onAjaxProgress(this, request));
@@ -706,7 +844,9 @@ class InAppWebViewController {
             Map<dynamic, dynamic> headers = argMap["headers"];
             Uint8List body = Uint8List.fromList(argMap["body"].cast<int>());
             String mode = argMap["mode"];
-            FetchRequestCredential credentials = FetchRequest.createFetchRequestCredentialFromMap(argMap["credentials"]);
+            FetchRequestCredential credentials =
+                FetchRequest.createFetchRequestCredentialFromMap(
+                    argMap["credentials"]);
             String cache = argMap["cache"];
             String redirect = argMap["redirect"];
             String referrer = argMap["referrer"];
@@ -714,13 +854,26 @@ class InAppWebViewController {
             String integrity = argMap["integrity"];
             bool keepalive = argMap["keepalive"];
 
-            var request = new FetchRequest(url: url, method: method, headers: headers, body: body, mode: mode, credentials: credentials,
+            var request = new FetchRequest(
-                cache: cache, redirect: redirect, referrer: referrer, referrerPolicy: referrerPolicy, integrity: integrity, keepalive: keepalive);
+                url: url,
+                method: method,
+                headers: headers,
+                body: body,
+                mode: mode,
+                credentials: credentials,
+                cache: cache,
+                redirect: redirect,
+                referrer: referrer,
+                referrerPolicy: referrerPolicy,
+                integrity: integrity,
+                keepalive: keepalive);
 
             if (_widget != null && _widget.shouldInterceptFetchRequest != null)
-              return jsonEncode(await _widget.shouldInterceptFetchRequest(this, request));
+              return jsonEncode(
+                  await _widget.shouldInterceptFetchRequest(this, request));
             else if (_inAppBrowser != null)
-              return jsonEncode(await _inAppBrowser.shouldInterceptFetchRequest(request));
+              return jsonEncode(
+                  await _inAppBrowser.shouldInterceptFetchRequest(request));
             return null;
         }
 
@@ -777,10 +930,11 @@ class InAppWebViewController {
   Future<String> getHtml() async {
     var html = "";
     InAppWebViewWidgetOptions options = await getOptions();
-    if (options != null && options.inAppWebViewOptions.javaScriptEnabled == true) {
+    if (options != null &&
-      html = await evaluateJavascript(source: "window.document.getElementsByTagName('html')[0].outerHTML;");
+        options.inAppWebViewOptions.javaScriptEnabled == true) {
-      if (html != null && html.isNotEmpty)
+      html = await evaluateJavascript(
-        return html;
+          source: "window.document.getElementsByTagName('html')[0].outerHTML;");
+      if (html != null && html.isNotEmpty) return html;
     }
 
     var webviewUrl = await getUrl();
@@ -789,13 +943,13 @@ class InAppWebViewController {
       var assetPath = assetPathSplitted[assetPathSplitted.length - 1];
       var bytes = await rootBundle.load(assetPath);
       html = utf8.decode(bytes.buffer.asUint8List());
-    }
+    } else {
-    else {
       HttpClient client = new HttpClient();
       var url = Uri.parse(webviewUrl);
       try {
         var htmlRequest = await client.getUrl(url);
-        html = await (await htmlRequest.close()).transform(Utf8Decoder()).join();
+        html =
+            await (await htmlRequest.close()).transform(Utf8Decoder()).join();
       } catch (e) {
         print(e);
       }
@@ -809,12 +963,14 @@ class InAppWebViewController {
 
     HttpClient client = new HttpClient();
     var webviewUrl = await getUrl();
-    var url = (webviewUrl.startsWith("file:///")) ? Uri.file(webviewUrl) : Uri.parse(webviewUrl);
+    var url = (webviewUrl.startsWith("file:///"))
+        ? Uri.file(webviewUrl)
+        : Uri.parse(webviewUrl);
     String manifestUrl;
 
     var html = await getHtml();
     if (html.isEmpty) {
-        return favicons;
+      return favicons;
     }
 
     var assetPathBase;
@@ -835,14 +991,18 @@ class InAppWebViewController {
           if (manifestUrl.startsWith("/")) {
             manifestUrl = manifestUrl.substring(1);
           }
-          manifestUrl = ((assetPathBase == null) ? url.scheme + "://" + url.host + "/" : assetPathBase) + manifestUrl;
+          manifestUrl = ((assetPathBase == null)
+                  ? url.scheme + "://" + url.host + "/"
+                  : assetPathBase) +
+              manifestUrl;
         }
         continue;
       }
       if (!attributes["rel"].contains("icon")) {
         continue;
       }
-      favicons.addAll(_createFavicons(url, assetPathBase, attributes["href"], attributes["rel"], attributes["sizes"], false));
+      favicons.addAll(_createFavicons(url, assetPathBase, attributes["href"],
+          attributes["rel"], attributes["sizes"], false));
     }
 
     // try to get /favicon.ico
@@ -850,7 +1010,7 @@ class InAppWebViewController {
       var faviconUrl = url.scheme + "://" + url.host + "/favicon.ico";
       await client.headUrl(Uri.parse(faviconUrl));
       favicons.add(Favicon(url: faviconUrl, rel: "shortcut icon"));
-    } catch(e) {
+    } catch (e) {
       print("/favicon.ico file not found: " + e.toString());
     }
 
@@ -864,16 +1024,19 @@ class InAppWebViewController {
     try {
       manifestRequest = await client.getUrl(Uri.parse(manifestUrl));
       manifestResponse = await manifestRequest.close();
-      manifestFound = manifestResponse.statusCode == 200 && manifestResponse.headers.contentType?.mimeType == "application/json";
+      manifestFound = manifestResponse.statusCode == 200 &&
-    } catch(e) {
+          manifestResponse.headers.contentType?.mimeType == "application/json";
+    } catch (e) {
       print("Manifest file not found: " + e.toString());
     }
 
     if (manifestFound) {
-      Map<String, dynamic> manifest = json.decode(await manifestResponse.transform(Utf8Decoder()).join());
+      Map<String, dynamic> manifest =
+          json.decode(await manifestResponse.transform(Utf8Decoder()).join());
       if (manifest.containsKey("icons")) {
-        for(Map<String, dynamic> icon in manifest["icons"]) {
+        for (Map<String, dynamic> icon in manifest["icons"]) {
-          favicons.addAll(_createFavicons(url, assetPathBase, icon["src"], icon["rel"], icon["sizes"], true));
+          favicons.addAll(_createFavicons(url, assetPathBase, icon["src"],
+              icon["rel"], icon["sizes"], true));
         }
       }
     }
@@ -885,7 +1048,8 @@ class InAppWebViewController {
     return url.startsWith("http://") || url.startsWith("https://");
   }
 
-  List<Favicon> _createFavicons(Uri url, String assetPathBase, String urlIcon, String rel, String sizes, bool isManifest) {
+  List<Favicon> _createFavicons(Uri url, String assetPathBase, String urlIcon,
+      String rel, String sizes, bool isManifest) {
     List<Favicon> favicons = [];
 
     List<String> urlSplitted = urlIcon.split("/");
@@ -893,17 +1057,26 @@ class InAppWebViewController {
       if (urlIcon.startsWith("/")) {
         urlIcon = urlIcon.substring(1);
       }
-      urlIcon = ((assetPathBase == null) ? url.scheme + "://" + url.host + "/" : assetPathBase) + urlIcon;
+      urlIcon = ((assetPathBase == null)
+              ? url.scheme + "://" + url.host + "/"
+              : assetPathBase) +
+          urlIcon;
     }
     if (isManifest) {
-      rel = (sizes != null) ? urlSplitted[urlSplitted.length - 1].replaceFirst("-" + sizes, "").split(" ")[0].split(".")[0] : null;
+      rel = (sizes != null)
+          ? urlSplitted[urlSplitted.length - 1]
+              .replaceFirst("-" + sizes, "")
+              .split(" ")[0]
+              .split(".")[0]
+          : null;
     }
     if (sizes != null && sizes.isNotEmpty && sizes != "any") {
       List<String> sizesSplitted = sizes.split(" ");
       for (String size in sizesSplitted) {
         int width = int.parse(size.split("x")[0]);
         int height = int.parse(size.split("x")[1]);
-        favicons.add(Favicon(url: urlIcon, rel: rel, width: width, height: height));
+        favicons
+            .add(Favicon(url: urlIcon, rel: rel, width: width, height: height));
       }
     } else {
       favicons.add(Favicon(url: urlIcon, rel: rel, width: null, height: null));
@@ -913,7 +1086,8 @@ class InAppWebViewController {
   }
 
   ///Loads the given [url] with optional [headers] specified as a map from name to value.
-  Future<void> loadUrl({@required String url, Map<String, String> headers = const {}}) async {
+  Future<void> loadUrl(
+      {@required String url, Map<String, String> headers = const {}}) async {
     assert(url != null && url.isNotEmpty);
     Map<String, dynamic> args = <String, dynamic>{};
     if (_inAppBrowserUuid != null && _inAppBrowser != null) {
@@ -926,7 +1100,8 @@ class InAppWebViewController {
   }
 
   ///Loads the given [url] with [postData] using `POST` method into this WebView.
-  Future<void> postUrl({@required String url, @required Uint8List postData}) async {
+  Future<void> postUrl(
+      {@required String url, @required Uint8List postData}) async {
     assert(url != null && url.isNotEmpty);
     assert(postData != null);
     Map<String, dynamic> args = <String, dynamic>{};
@@ -942,7 +1117,11 @@ class InAppWebViewController {
   ///Loads the given [data] into this WebView, using [baseUrl] as the base URL for the content.
   ///The [mimeType] parameter specifies the format of the data.
   ///The [encoding] parameter specifies the encoding of the data.
-  Future<void> loadData({@required String data, String mimeType = "text/html", String encoding = "utf8", String baseUrl = "about:blank"}) async {
+  Future<void> loadData(
+      {@required String data,
+      String mimeType = "text/html",
+      String encoding = "utf8",
+      String baseUrl = "about:blank"}) async {
     assert(data != null);
     Map<String, dynamic> args = <String, dynamic>{};
     if (_inAppBrowserUuid != null && _inAppBrowser != null) {
@@ -985,7 +1164,9 @@ class InAppWebViewController {
   ///inAppBrowser.loadFile("assets/index.html");
   ///...
   ///```
-  Future<void> loadFile({@required String assetFilePath, Map<String, String> headers = const {}}) async {
+  Future<void> loadFile(
+      {@required String assetFilePath,
+      Map<String, String> headers = const {}}) async {
     assert(assetFilePath != null && assetFilePath.isNotEmpty);
     Map<String, dynamic> args = <String, dynamic>{};
     if (_inAppBrowserUuid != null && _inAppBrowser != null) {
@@ -1107,8 +1288,7 @@ class InAppWebViewController {
     }
     args.putIfAbsent('source', () => source);
     var data = await _channel.invokeMethod('evaluateJavascript', args);
-    if (data != null && Platform.isAndroid)
+    if (data != null && Platform.isAndroid) data = json.decode(data);
-      data = json.decode(data);
     return data;
   }
 
@@ -1122,9 +1302,10 @@ class InAppWebViewController {
     args.putIfAbsent('urlFile', () => urlFile);
     await _channel.invokeMethod('injectJavascriptFileFromUrl', args);
   }
-  
+
   ///Injects a JavaScript file into the WebView from the flutter assets directory.
-  Future<void> injectJavascriptFileFromAsset({@required String assetFilePath}) async {
+  Future<void> injectJavascriptFileFromAsset(
+      {@required String assetFilePath}) async {
     String source = await rootBundle.loadString(assetFilePath);
     await evaluateJavascript(source: source);
   }
@@ -1201,7 +1382,9 @@ class InAppWebViewController {
   ///    });
   ///  """);
   ///```
-  void addJavaScriptHandler({@required String handlerName, @required JavaScriptHandlerCallback callback}) {
+  void addJavaScriptHandler(
+      {@required String handlerName,
+      @required JavaScriptHandlerCallback callback}) {
     assert(!javaScriptHandlerForbiddenNames.contains(handlerName));
     this.javaScriptHandlersMap[handlerName] = (callback);
   }
@@ -1209,7 +1392,8 @@ class InAppWebViewController {
   ///Removes a JavaScript message handler previously added with the [addJavaScriptHandler()] associated to [handlerName] key.
   ///Returns the value associated with [handlerName] before it was removed.
   ///Returns `null` if [handlerName] was not found.
-  JavaScriptHandlerCallback removeJavaScriptHandler({@required String handlerName}) {
+  JavaScriptHandlerCallback removeJavaScriptHandler(
+      {@required String handlerName}) {
     return this.javaScriptHandlersMap.remove(handlerName);
   }
 
@@ -1252,15 +1436,20 @@ class InAppWebViewController {
       args.putIfAbsent('uuid', () => _inAppBrowserUuid);
     }
 
-    InAppWebViewWidgetOptions inAppWebViewWidgetOptions = InAppWebViewWidgetOptions();
+    InAppWebViewWidgetOptions inAppWebViewWidgetOptions =
-    Map<dynamic, dynamic> options = await _channel.invokeMethod('getOptions', args);
+        InAppWebViewWidgetOptions();
+    Map<dynamic, dynamic> options =
+        await _channel.invokeMethod('getOptions', args);
     if (options != null) {
       options = options.cast<String, dynamic>();
-      inAppWebViewWidgetOptions.inAppWebViewOptions = InAppWebViewOptions.fromMap(options);
+      inAppWebViewWidgetOptions.inAppWebViewOptions =
+          InAppWebViewOptions.fromMap(options);
       if (Platform.isAndroid)
-        inAppWebViewWidgetOptions.androidInAppWebViewOptions = AndroidInAppWebViewOptions.fromMap(options);
+        inAppWebViewWidgetOptions.androidInAppWebViewOptions =
+            AndroidInAppWebViewOptions.fromMap(options);
       else if (Platform.isIOS)
-        inAppWebViewWidgetOptions.iosInAppWebViewOptions = IosInAppWebViewOptions.fromMap(options);
+        inAppWebViewWidgetOptions.iosInAppWebViewOptions =
+            IosInAppWebViewOptions.fromMap(options);
     }
 
     return inAppWebViewWidgetOptions;
@@ -1276,7 +1465,8 @@ class InAppWebViewController {
       _inAppBrowser.throwIsNotOpened();
       args.putIfAbsent('uuid', () => _inAppBrowserUuid);
     }
-    Map<dynamic, dynamic> result = await _channel.invokeMethod('getCopyBackForwardList', args);
+    Map<dynamic, dynamic> result =
+        await _channel.invokeMethod('getCopyBackForwardList', args);
     result = result.cast<String, dynamic>();
 
     List<dynamic> historyListMap = result["history"];
@@ -1285,9 +1475,14 @@ class InAppWebViewController {
     int currentIndex = result["currentIndex"];
 
     List<WebHistoryItem> historyList = List();
-    for(var i = 0; i < historyListMap.length; i++) {
+    for (var i = 0; i < historyListMap.length; i++) {
       LinkedHashMap<dynamic, dynamic> historyItem = historyListMap[i];
-      historyList.add(WebHistoryItem(originalUrl: historyItem["originalUrl"], title: historyItem["title"], url: historyItem["url"], index: i, offset: i - currentIndex));
+      historyList.add(WebHistoryItem(
+          originalUrl: historyItem["originalUrl"],
+          title: historyItem["title"],
+          url: historyItem["url"],
+          index: i,
+          offset: i - currentIndex));
     }
     return WebHistory(list: historyList, currentIndex: currentIndex);
   }
@@ -1434,12 +1629,14 @@ class InAppWebViewController {
 
   ///Gets the html (with javascript) of the Chromium's t-rex runner game. Used in combination with [getTRexRunnerCss()].
   Future<String> getTRexRunnerHtml() async {
-    return await rootBundle.loadString("packages/flutter_inappwebview/t_rex_runner/t-rex.html");
+    return await rootBundle
+        .loadString("packages/flutter_inappwebview/t_rex_runner/t-rex.html");
   }
 
   ///Gets the css of the Chromium's t-rex runner game. Used in combination with [getTRexRunnerHtml()].
   Future<String> getTRexRunnerCss() async {
-    return await rootBundle.loadString("packages/flutter_inappwebview/t_rex_runner/t-rex.css");
+    return await rootBundle
+        .loadString("packages/flutter_inappwebview/t_rex_runner/t-rex.css");
   }
 
   ///Scrolls the WebView to the position.

lib/src/webview_options.dart

@@ -4,6 +4,7 @@ import 'content_blocker.dart';
 import 'types.dart';
 
 class AndroidOptions {}
+
 class IosOptions {}
 
 class WebViewOptions {
@@ -37,85 +38,130 @@ class ChromeSafariBrowserOptions {
 }
 
 ///This class represents all the cross-platform WebView options available.
-class InAppWebViewOptions implements WebViewOptions, BrowserOptions, AndroidOptions, IosOptions {
+class InAppWebViewOptions
+    implements WebViewOptions, BrowserOptions, AndroidOptions, IosOptions {
   ///Set to `true` to be able to listen at the [shouldOverrideUrlLoading] event. The default value is `false`.
   bool useShouldOverrideUrlLoading;
+
   ///Set to `true` to be able to listen at the [onLoadResource] event. The default value is `false`.
   bool useOnLoadResource;
+
   ///Set to `true` to be able to listen at the [onDownloadStart] event. The default value is `false`.
   bool useOnDownloadStart;
+
   ///Set to `true` to be able to listen at the [onTargetBlank] event. The default value is `false`.
   bool useOnTargetBlank;
+
   ///Set to `true` to have all the browser's cache cleared before the new window is opened. The default value is `false`.
   bool clearCache;
+
   ///Sets the user-agent for the WebView.
   ///
   ///**NOTE**: available on iOS 9.0+.
   String userAgent;
+
   ///Append to the existing user-agent. Setting userAgent will override this.
   ///
   ///**NOTE**: available on Android 17+ and on iOS 9.0+.
   String applicationNameForUserAgent;
+
   ///Set to `true` to enable JavaScript. The default value is `true`.
   bool javaScriptEnabled;
+
   ///Enables debugging of web contents (HTML / CSS / JavaScript) loaded into any WebViews of this application.
   ///This flag can be enabled in order to facilitate debugging of web layouts and JavaScript code running inside WebViews. The default is `false`.
   ///
   ///**NOTE**: on iOS the debugging mode is always enabled.
   bool debuggingEnabled;
+
   ///Set to `true` to allow JavaScript open windows without user interaction. The default value is `false`.
   bool javaScriptCanOpenWindowsAutomatically;
+
   ///Set to `true` to prevent HTML5 audio or video from autoplaying. The default value is `true`.
   ///
   ///**NOTE**: available on iOS 10.0+.
   bool mediaPlaybackRequiresUserGesture;
+
   ///Sets the minimum font size. The default value is `8` for Android, `0` for iOS.
   int minimumFontSize;
+
   ///Define whether the vertical scrollbar should be drawn or not. The default value is `true`.
   bool verticalScrollBarEnabled;
+
   ///Define whether the horizontal scrollbar should be drawn or not. The default value is `true`.
   bool horizontalScrollBarEnabled;
+
   ///List of custom schemes that the WebView must handle. Use the [onLoadResourceCustomScheme] event to intercept resource requests with custom scheme.
   ///
   ///**NOTE**: available on iOS 11.0+.
   List<String> resourceCustomSchemes;
+
   ///List of [ContentBlocker] that are a set of rules used to block content in the browser window.
   ///
   ///**NOTE**: available on iOS 11.0+.
   List<ContentBlocker> contentBlockers;
+
   ///Sets the content mode that the WebView needs to use when loading and rendering a webpage. The default value is [InAppWebViewUserPreferredContentMode.RECOMMENDED].
   ///
   ///**NOTE**: available on iOS 13.0+.
   InAppWebViewUserPreferredContentMode preferredContentMode;
+
   ///Set to `true` to be able to listen at the [shouldInterceptAjaxRequest] event. The default value is `false`.
   bool useShouldInterceptAjaxRequest;
+
   ///Set to `true` to be able to listen at the [shouldInterceptFetchRequest] event. The default value is `false`.
   bool useShouldInterceptFetchRequest;
+
   ///Set to `true` to open a browser window with incognito mode. The default value is `false`.
   ///
   ///**NOTE**: available on iOS 9.0+.
   bool incognito;
+
   ///Sets whether WebView should use browser caching. The default value is `true`.
   ///
   ///**NOTE**: available on iOS 9.0+.
   bool cacheEnabled;
+
   ///Set to `true` to make the background of the WebView transparent. If your app has a dark theme, this can prevent a white flash on initialization. The default value is `false`.
   bool transparentBackground;
+
   ///Set to `true` to disable vertical scroll. The default value is `false`.
   bool disableVerticalScroll;
+
   ///Set to `true` to disable horizontal scroll. The default value is `false`.
   bool disableHorizontalScroll;
 
-  InAppWebViewOptions({this.useShouldOverrideUrlLoading = false, this.useOnLoadResource = false, this.useOnDownloadStart = false, this.useOnTargetBlank = false,
+  InAppWebViewOptions(
-    this.clearCache = false, this.userAgent = "", this.applicationNameForUserAgent = "", this.javaScriptEnabled = true, this.debuggingEnabled = false, this.javaScriptCanOpenWindowsAutomatically = false,
+      {this.useShouldOverrideUrlLoading = false,
-    this.mediaPlaybackRequiresUserGesture = true, this.minimumFontSize, this.verticalScrollBarEnabled = true, this.horizontalScrollBarEnabled = true,
+      this.useOnLoadResource = false,
-    this.resourceCustomSchemes = const [], this.contentBlockers = const [], this.preferredContentMode = InAppWebViewUserPreferredContentMode.RECOMMENDED,
+      this.useOnDownloadStart = false,
-    this.useShouldInterceptAjaxRequest = false, this.useShouldInterceptFetchRequest = false, this.incognito = false, this.cacheEnabled = true, this.transparentBackground = false,
+      this.useOnTargetBlank = false,
-    this.disableVerticalScroll = false, this.disableHorizontalScroll = false}) {
+      this.clearCache = false,
-      if (this.minimumFontSize == null)
+      this.userAgent = "",
-        this.minimumFontSize = Platform.isAndroid ? 8 : 0;
+      this.applicationNameForUserAgent = "",
-      assert(!this.resourceCustomSchemes.contains("http") && !this.resourceCustomSchemes.contains("https"));
+      this.javaScriptEnabled = true,
-    }
+      this.debuggingEnabled = false,
+      this.javaScriptCanOpenWindowsAutomatically = false,
+      this.mediaPlaybackRequiresUserGesture = true,
+      this.minimumFontSize,
+      this.verticalScrollBarEnabled = true,
+      this.horizontalScrollBarEnabled = true,
+      this.resourceCustomSchemes = const [],
+      this.contentBlockers = const [],
+      this.preferredContentMode =
+          InAppWebViewUserPreferredContentMode.RECOMMENDED,
+      this.useShouldInterceptAjaxRequest = false,
+      this.useShouldInterceptFetchRequest = false,
+      this.incognito = false,
+      this.cacheEnabled = true,
+      this.transparentBackground = false,
+      this.disableVerticalScroll = false,
+      this.disableHorizontalScroll = false}) {
+    if (this.minimumFontSize == null)
+      this.minimumFontSize = Platform.isAndroid ? 8 : 0;
+    assert(!this.resourceCustomSchemes.contains("http") &&
+        !this.resourceCustomSchemes.contains("https"));
+  }
 
   @override
   Map<String, dynamic> toMap() {
@@ -134,7 +180,8 @@ class InAppWebViewOptions implements WebViewOptions, BrowserOptions, AndroidOpti
       "applicationNameForUserAgent": applicationNameForUserAgent,
       "javaScriptEnabled": javaScriptEnabled,
       "debuggingEnabled": debuggingEnabled,
-      "javaScriptCanOpenWindowsAutomatically": javaScriptCanOpenWindowsAutomatically,
+      "javaScriptCanOpenWindowsAutomatically":
+          javaScriptCanOpenWindowsAutomatically,
       "mediaPlaybackRequiresUserGesture": mediaPlaybackRequiresUserGesture,
       "verticalScrollBarEnabled": verticalScrollBarEnabled,
       "horizontalScrollBarEnabled": horizontalScrollBarEnabled,
@@ -151,15 +198,14 @@ class InAppWebViewOptions implements WebViewOptions, BrowserOptions, AndroidOpti
     };
   }
 
-  @override
   static InAppWebViewOptions fromMap(Map<String, dynamic> map) {
     List<ContentBlocker> contentBlockers = [];
     List<dynamic> contentBlockersMapList = map["contentBlockers"];
     if (contentBlockersMapList != null) {
       contentBlockersMapList.forEach((contentBlocker) {
         contentBlockers.add(ContentBlocker.fromMap(
-            Map<dynamic, Map<dynamic, dynamic>>.from(Map<dynamic, dynamic>.from(contentBlocker))
+            Map<dynamic, Map<dynamic, dynamic>>.from(
-        ));
+                Map<dynamic, dynamic>.from(contentBlocker))));
       });
     }
 
@@ -173,15 +219,22 @@ class InAppWebViewOptions implements WebViewOptions, BrowserOptions, AndroidOpti
     options.applicationNameForUserAgent = map["applicationNameForUserAgent"];
     options.javaScriptEnabled = map["javaScriptEnabled"];
     options.debuggingEnabled = map["debuggingEnabled"];
-    options.javaScriptCanOpenWindowsAutomatically = map["javaScriptCanOpenWindowsAutomatically"];
+    options.javaScriptCanOpenWindowsAutomatically =
-    options.mediaPlaybackRequiresUserGesture = map["mediaPlaybackRequiresUserGesture"];
+        map["javaScriptCanOpenWindowsAutomatically"];
+    options.mediaPlaybackRequiresUserGesture =
+        map["mediaPlaybackRequiresUserGesture"];
     options.verticalScrollBarEnabled = map["verticalScrollBarEnabled"];
     options.horizontalScrollBarEnabled = map["horizontalScrollBarEnabled"];
-    options.resourceCustomSchemes = List<String>.from(map["resourceCustomSchemes"] ?? []);
+    options.resourceCustomSchemes =
+        List<String>.from(map["resourceCustomSchemes"] ?? []);
     options.contentBlockers = contentBlockers;
-    options.preferredContentMode = InAppWebViewUserPreferredContentMode.fromValue(map["preferredContentMode"]);
+    options.preferredContentMode =
-    options.useShouldInterceptAjaxRequest = map["useShouldInterceptAjaxRequest"];
+        InAppWebViewUserPreferredContentMode.fromValue(
-    options.useShouldInterceptFetchRequest = map["useShouldInterceptFetchRequest"];
+            map["preferredContentMode"]);
+    options.useShouldInterceptAjaxRequest =
+        map["useShouldInterceptAjaxRequest"];
+    options.useShouldInterceptFetchRequest =
+        map["useShouldInterceptFetchRequest"];
     options.incognito = map["incognito"];
     options.cacheEnabled = map["cacheEnabled"];
     options.transparentBackground = map["transparentBackground"];
@@ -192,92 +245,124 @@ class InAppWebViewOptions implements WebViewOptions, BrowserOptions, AndroidOpti
 }
 
 ///This class represents all the Android-only WebView options available.
-class AndroidInAppWebViewOptions implements WebViewOptions, BrowserOptions, AndroidOptions {
+class AndroidInAppWebViewOptions
+    implements WebViewOptions, BrowserOptions, AndroidOptions {
   ///Sets the text zoom of the page in percent. The default value is `100`.
   int textZoom;
+
   ///Set to `true` to have the session cookie cache cleared before the new window is opened.
   bool clearSessionCache;
+
   ///Set to `true` if the WebView should use its built-in zoom mechanisms. The default value is `false`.
   bool builtInZoomControls;
+
   ///Set to `true` if the WebView should display on-screen zoom controls when using the built-in zoom mechanisms. The default value is `false`.
   bool displayZoomControls;
+
   ///Set to `false` if the WebView should not support zooming using its on-screen zoom controls and gestures. The default value is `true`.
   bool supportZoom;
+
   ///Set to `true` if you want the database storage API is enabled. The default value is `false`.
   bool databaseEnabled;
+
   ///Set to `true` if you want the DOM storage API is enabled. The default value is `false`.
   bool domStorageEnabled;
+
   ///Set to `true` if the WebView should enable support for the "viewport" HTML meta tag or should use a wide viewport.
   ///When the value of the setting is false, the layout width is always set to the width of the WebView control in device-independent (CSS) pixels.
   ///When the value is true and the page contains the viewport meta tag, the value of the width specified in the tag is used.
   ///If the page does not contain the tag or does not provide a width, then a wide viewport will be used. The default value is `true`.
   bool useWideViewPort;
+
   ///Sets whether Safe Browsing is enabled. Safe Browsing allows WebView to protect against malware and phishing attacks by verifying the links.
   ///Safe Browsing is enabled by default for devices which support it.
   ///
   ///**NOTE**: available on Android 26+.
   bool safeBrowsingEnabled;
+
   ///Configures the WebView's behavior when a secure origin attempts to load a resource from an insecure origin.
   ///
   ///**NOTE**: available on Android 21+.
   AndroidInAppWebViewMixedContentMode mixedContentMode;
+
   ///Enables or disables content URL access within WebView. Content URL access allows WebView to load content from a content provider installed in the system. The default value is `true`.
   bool allowContentAccess;
+
   ///Enables or disables file access within WebView. Note that this enables or disables file system access only.
   ///Assets and resources are still accessible using \file:///android_asset` and `file:///android_res`. The default value is `true`.
   bool allowFileAccess;
+
   ///Sets whether JavaScript running in the context of a file scheme URL should be allowed to access content from other file scheme URLs.
   ///Note that the value of this setting is ignored if the value of [allowFileAccessFromFileURLs] is `true`.
   ///Note too, that this setting affects only JavaScript access to file scheme resources. The default value is `false`.
   bool allowFileAccessFromFileURLs;
+
   ///Sets whether JavaScript running in the context of a file scheme URL should be allowed to access content from any origin.
   ///Note that this setting affects only JavaScript access to file scheme resources.
   ///This includes access to content from other file scheme URLs. The default value is `false`.
   bool allowUniversalAccessFromFileURLs;
+
   ///Sets the path to the Application Caches files. In order for the Application Caches API to be enabled, this option must be set a path to which the application can write.
   ///This option is used one time: repeated calls are ignored.
   String appCachePath;
+
   ///Sets whether the WebView should not load image resources from the network (resources accessed via http and https URI schemes). The default value is `false`.
   bool blockNetworkImage;
+
   ///Sets whether the WebView should not load resources from the network. The default value is `false`.
   bool blockNetworkLoads;
+
   ///Overrides the way the cache is used. The way the cache is used is based on the navigation type. For a normal page load, the cache is checked and content is re-validated as needed.
   ///When navigating back, content is not revalidated, instead the content is just retrieved from the cache. The default value is [AndroidInAppWebViewCacheMode.LOAD_DEFAULT].
   AndroidInAppWebViewCacheMode cacheMode;
+
   ///Sets the cursive font family name. The default value is `"cursive"`.
   String cursiveFontFamily;
+
   ///Sets the default fixed font size. The default value is `16`.
   int defaultFixedFontSize;
+
   ///Sets the default font size. The default value is `16`.
   int defaultFontSize;
+
   ///Sets the default text encoding name to use when decoding html pages. The default value is `"UTF-8"`.
   String defaultTextEncodingName;
+
   ///Disables the action mode menu items according to menuItems flag.
   ///
   ///**NOTE**: available on Android 24+.
   AndroidInAppWebViewModeMenuItem disabledActionModeMenuItems;
+
   ///Sets the fantasy font family name. The default value is `"fantasy"`.
   String fantasyFontFamily;
+
   ///Sets the fixed font family name. The default value is `"monospace"`.
   String fixedFontFamily;
+
   ///Set the force dark mode for this WebView. The default value is [AndroidInAppWebViewForceDark.FORCE_DARK_OFF].
   ///
   ///**NOTE**: available on Android 29+.
   AndroidInAppWebViewForceDark forceDark;
+
   ///Sets whether Geolocation API is enabled. The default value is `true`.
   bool geolocationEnabled;
+
   ///Sets the underlying layout algorithm. This will cause a re-layout of the WebView.
   AndroidInAppWebViewLayoutAlgorithm layoutAlgorithm;
+
   ///Sets whether the WebView loads pages in overview mode, that is, zooms out the content to fit on screen by width.
   ///This setting is taken into account when the content width is greater than the width of the WebView control, for example, when [useWideViewPort] is enabled.
   ///The default value is `false`.
   bool loadWithOverviewMode;
+
   ///Sets whether the WebView should load image resources. Note that this method controls loading of all images, including those embedded using the data URI scheme.
   ///Note that if the value of this setting is changed from false to true, all images resources referenced by content currently displayed by the WebView are loaded automatically.
   ///The default value is `true`.
   bool loadsImagesAutomatically;
+
   ///Sets the minimum logical font size. The default is `8`.
   int minimumLogicalFontSize;
+
   ///Sets the initial scale for this WebView. 0 means default. The behavior for the default scale depends on the state of [useWideViewPort] and [loadWithOverviewMode].
   ///If the content fits into the WebView control by width, then the zoom is set to 100%. For wide content, the behavior depends on the state of [loadWithOverviewMode].
   ///If its value is true, the content will be zoomed out to be fit by width into the WebView control, otherwise not.
@@ -285,43 +370,82 @@ class AndroidInAppWebViewOptions implements WebViewOptions, BrowserOptions, Andr
   ///Please note that unlike the scale properties in the viewport meta tag, this method doesn't take the screen density into account.
   ///The default is `0`.
   int initialScale;
+
   ///Tells the WebView whether it needs to set a node. The default value is `true`.
   bool needInitialFocus;
+
   ///Sets whether this WebView should raster tiles when it is offscreen but attached to a window.
   ///Turning this on can avoid rendering artifacts when animating an offscreen WebView on-screen.
   ///Offscreen WebViews in this mode use more memory. The default value is `false`.
   ///
   ///**NOTE**: available on Android 23+.
   bool offscreenPreRaster;
+
   ///Sets the sans-serif font family name. The default value is `"sans-serif"`.
   String sansSerifFontFamily;
+
   ///Sets the serif font family name. The default value is `"sans-serif"`.
   String serifFontFamily;
+
   ///Sets the standard font family name. The default value is `"sans-serif"`.
   String standardFontFamily;
+
   ///Sets whether the WebView should save form data. In Android O, the platform has implemented a fully functional Autofill feature to store form data.
   ///Therefore, the Webview form data save feature is disabled. Note that the feature will continue to be supported on older versions of Android as before.
   bool saveFormData;
+
   ///Boolean value to enable third party cookies in the WebView.
   ///Used on Android Lollipop and above only as third party cookies are enabled by default on Android Kitkat and below and on iOS.
   ///The default value is `true`.
   ///
   ///**NOTE**: available on Android 21+.
   bool thirdPartyCookiesEnabled;
+
   ///Boolean value to enable Hardware Acceleration in the WebView.
   ///The default value is `true`.
   bool hardwareAcceleration;
 
-  AndroidInAppWebViewOptions({this.textZoom = 100, this.clearSessionCache = false, this.builtInZoomControls = false, this.displayZoomControls = false, this.supportZoom = true, this.databaseEnabled = false,
+  AndroidInAppWebViewOptions(
-    this.domStorageEnabled = false, this.useWideViewPort = true, this.safeBrowsingEnabled = true, this.mixedContentMode,
+      {this.textZoom = 100,
-    this.allowContentAccess = true, this.allowFileAccess = true, this.allowFileAccessFromFileURLs = false, this.allowUniversalAccessFromFileURLs = false,
+      this.clearSessionCache = false,
-    this.appCachePath, this.blockNetworkImage = false, this.blockNetworkLoads = false, this.cacheMode = AndroidInAppWebViewCacheMode.LOAD_DEFAULT,
+      this.builtInZoomControls = false,
-    this.cursiveFontFamily = "cursive", this.defaultFixedFontSize = 16, this.defaultFontSize = 16, this.defaultTextEncodingName = "UTF-8",
+      this.displayZoomControls = false,
-    this.disabledActionModeMenuItems, this.fantasyFontFamily = "fantasy", this.fixedFontFamily = "monospace", this.forceDark = AndroidInAppWebViewForceDark.FORCE_DARK_OFF,
+      this.supportZoom = true,
-    this.geolocationEnabled = true, this.layoutAlgorithm, this.loadWithOverviewMode = true, this.loadsImagesAutomatically = true,
+      this.databaseEnabled = false,
-    this.minimumLogicalFontSize = 8, this.needInitialFocus = true, this.offscreenPreRaster = false, this.sansSerifFontFamily = "sans-serif", this.serifFontFamily = "sans-serif",
+      this.domStorageEnabled = false,
-    this.standardFontFamily = "sans-serif", this.saveFormData = true, this.thirdPartyCookiesEnabled = true, this.hardwareAcceleration = true, this.initialScale = 0
+      this.useWideViewPort = true,
-  });
+      this.safeBrowsingEnabled = true,
+      this.mixedContentMode,
+      this.allowContentAccess = true,
+      this.allowFileAccess = true,
+      this.allowFileAccessFromFileURLs = false,
+      this.allowUniversalAccessFromFileURLs = false,
+      this.appCachePath,
+      this.blockNetworkImage = false,
+      this.blockNetworkLoads = false,
+      this.cacheMode = AndroidInAppWebViewCacheMode.LOAD_DEFAULT,
+      this.cursiveFontFamily = "cursive",
+      this.defaultFixedFontSize = 16,
+      this.defaultFontSize = 16,
+      this.defaultTextEncodingName = "UTF-8",
+      this.disabledActionModeMenuItems,
+      this.fantasyFontFamily = "fantasy",
+      this.fixedFontFamily = "monospace",
+      this.forceDark = AndroidInAppWebViewForceDark.FORCE_DARK_OFF,
+      this.geolocationEnabled = true,
+      this.layoutAlgorithm,
+      this.loadWithOverviewMode = true,
+      this.loadsImagesAutomatically = true,
+      this.minimumLogicalFontSize = 8,
+      this.needInitialFocus = true,
+      this.offscreenPreRaster = false,
+      this.sansSerifFontFamily = "sans-serif",
+      this.serifFontFamily = "sans-serif",
+      this.standardFontFamily = "sans-serif",
+      this.saveFormData = true,
+      this.thirdPartyCookiesEnabled = true,
+      this.hardwareAcceleration = true,
+      this.initialScale = 0});
 
   @override
   Map<String, dynamic> toMap() {
@@ -369,7 +493,6 @@ class AndroidInAppWebViewOptions implements WebViewOptions, BrowserOptions, Andr
     };
   }
 
-  @override
   static AndroidInAppWebViewOptions fromMap(Map<String, dynamic> map) {
     AndroidInAppWebViewOptions options = new AndroidInAppWebViewOptions();
     options.textZoom = map["textZoom"];
@@ -381,25 +504,32 @@ class AndroidInAppWebViewOptions implements WebViewOptions, BrowserOptions, Andr
     options.domStorageEnabled = map["domStorageEnabled"];
     options.useWideViewPort = map["useWideViewPort"];
     options.safeBrowsingEnabled = map["safeBrowsingEnabled"];
-    options.mixedContentMode = AndroidInAppWebViewMixedContentMode.fromValue(map["mixedContentMode"]);
+    options.mixedContentMode =
+        AndroidInAppWebViewMixedContentMode.fromValue(map["mixedContentMode"]);
     options.allowContentAccess = map["allowContentAccess"];
     options.allowFileAccess = map["allowFileAccess"];
     options.allowFileAccessFromFileURLs = map["allowFileAccessFromFileURLs"];
-    options.allowUniversalAccessFromFileURLs = map["allowUniversalAccessFromFileURLs"];
+    options.allowUniversalAccessFromFileURLs =
+        map["allowUniversalAccessFromFileURLs"];
     options.appCachePath = map["appCachePath"];
     options.blockNetworkImage = map["blockNetworkImage"];
     options.blockNetworkLoads = map["blockNetworkLoads"];
-    options.cacheMode = AndroidInAppWebViewCacheMode.fromValue(map["cacheMode"]);
+    options.cacheMode =
+        AndroidInAppWebViewCacheMode.fromValue(map["cacheMode"]);
     options.cursiveFontFamily = map["cursiveFontFamily"];
     options.defaultFixedFontSize = map["defaultFixedFontSize"];
     options.defaultFontSize = map["defaultFontSize"];
     options.defaultTextEncodingName = map["defaultTextEncodingName"];
-    options.disabledActionModeMenuItems = AndroidInAppWebViewModeMenuItem.fromValue(map["disabledActionModeMenuItems"]);
+    options.disabledActionModeMenuItems =
+        AndroidInAppWebViewModeMenuItem.fromValue(
+            map["disabledActionModeMenuItems"]);
     options.fantasyFontFamily = map["fantasyFontFamily"];
     options.fixedFontFamily = map["fixedFontFamily"];
-    options.forceDark = AndroidInAppWebViewForceDark.fromValue(map["forceDark"]);
+    options.forceDark =
+        AndroidInAppWebViewForceDark.fromValue(map["forceDark"]);
     options.geolocationEnabled = map["geolocationEnabled"];
-    options.layoutAlgorithm = AndroidInAppWebViewLayoutAlgorithm.fromValue(map["layoutAlgorithm"]);
+    options.layoutAlgorithm =
+        AndroidInAppWebViewLayoutAlgorithm.fromValue(map["layoutAlgorithm"]);
     options.loadWithOverviewMode = map["loadWithOverviewMode"];
     options.loadsImagesAutomatically = map["loadsImagesAutomatically"];
     options.minimumLogicalFontSize = map["minimumLogicalFontSize"];
@@ -417,57 +547,79 @@ class AndroidInAppWebViewOptions implements WebViewOptions, BrowserOptions, Andr
 }
 
 ///This class represents all the iOS-only WebView options available.
-class IosInAppWebViewOptions implements WebViewOptions, BrowserOptions, IosOptions {
+class IosInAppWebViewOptions
+    implements WebViewOptions, BrowserOptions, IosOptions {
   ///Set to `true` to disable the bouncing of the WebView when the scrolling has reached an edge of the content. The default value is `false`.
   bool disallowOverScroll;
+
   ///Set to `true` to allow a viewport meta tag to either disable or restrict the range of user scaling. The default value is `false`.
   bool enableViewportScale;
+
   ///Set to `true` if you want the WebView suppresses content rendering until it is fully loaded into memory. The default value is `false`.
   bool suppressesIncrementalRendering;
+
   ///Set to `true` to allow AirPlay. The default value is `true`.
   bool allowsAirPlayForMediaPlayback;
+
   ///Set to `true` to allow the horizontal swipe gestures trigger back-forward list navigations. The default value is `true`.
   bool allowsBackForwardNavigationGestures;
+
   ///Set to `true` to allow that pressing on a link displays a preview of the destination for the link. The default value is `true`.
   ///
   ///**NOTE**: available on iOS 9.0+.
   bool allowsLinkPreview;
+
   ///Set to `true` if you want that the WebView should always allow scaling of the webpage, regardless of the author's intent.
   ///The ignoresViewportScaleLimits property overrides the `user-scalable` HTML property in a webpage. The default value is `false`.
   bool ignoresViewportScaleLimits;
+
   ///Set to `true` to allow HTML5 media playback to appear inline within the screen layout, using browser-supplied controls rather than native controls.
   ///For this to work, add the `webkit-playsinline` attribute to any `<video>` elements. The default value is `false`.
   bool allowsInlineMediaPlayback;
+
   ///Set to `true` to allow HTML5 videos play picture-in-picture. The default value is `true`.
   ///
   ///**NOTE**: available on iOS 9.0+.
   bool allowsPictureInPictureMediaPlayback;
+
   ///A Boolean value indicating whether warnings should be shown for suspected fraudulent content such as phishing or malware.
   ///According to the official documentation, this feature is currently available in the following region: China.
   ///The default value is `true`.
   ///
   ///**NOTE**: available on iOS 13.0+.
   bool isFraudulentWebsiteWarningEnabled;
+
   ///The level of granularity with which the user can interactively select content in the web view.
   ///The default value is [IosInAppWebViewSelectionGranularity.DYNAMIC]
   IosInAppWebViewSelectionGranularity selectionGranularity;
+
   ///Specifying a dataDetectoryTypes value adds interactivity to web content that matches the value.
   ///For example, Safari adds a link to “apple.com” in the text “Visit apple.com” if the dataDetectorTypes property is set to [IosInAppWebViewDataDetectorTypes.LINK].
   ///The default value is [IosInAppWebViewDataDetectorTypes.NONE].
   ///
   ///**NOTE**: available on iOS 10.0+.
   List<IosInAppWebViewDataDetectorTypes> dataDetectorTypes;
+
   ///Set `true` if shared cookies from `HTTPCookieStorage.shared` should used for every load request in the WebView.
   ///The default value is `false`.
   ///
   ///**NOTE**: available on iOS 11.0+.
   bool sharedCookiesEnabled;
 
-  IosInAppWebViewOptions({this.disallowOverScroll = false, this.enableViewportScale = false, this.suppressesIncrementalRendering = false, this.allowsAirPlayForMediaPlayback = true,
+  IosInAppWebViewOptions(
-    this.allowsBackForwardNavigationGestures = true, this.allowsLinkPreview = true, this.ignoresViewportScaleLimits = false, this.allowsInlineMediaPlayback = false,
+      {this.disallowOverScroll = false,
-    this.allowsPictureInPictureMediaPlayback = true, this.isFraudulentWebsiteWarningEnabled = true,
+      this.enableViewportScale = false,
-    this.selectionGranularity = IosInAppWebViewSelectionGranularity.DYNAMIC, this.dataDetectorTypes = const [IosInAppWebViewDataDetectorTypes.NONE], this.sharedCookiesEnabled = false
+      this.suppressesIncrementalRendering = false,
-  });
+      this.allowsAirPlayForMediaPlayback = true,
+      this.allowsBackForwardNavigationGestures = true,
+      this.allowsLinkPreview = true,
+      this.ignoresViewportScaleLimits = false,
+      this.allowsInlineMediaPlayback = false,
+      this.allowsPictureInPictureMediaPlayback = true,
+      this.isFraudulentWebsiteWarningEnabled = true,
+      this.selectionGranularity = IosInAppWebViewSelectionGranularity.DYNAMIC,
+      this.dataDetectorTypes = const [IosInAppWebViewDataDetectorTypes.NONE],
+      this.sharedCookiesEnabled = false});
 
   @override
   Map<String, dynamic> toMap() {
@@ -481,11 +633,13 @@ class IosInAppWebViewOptions implements WebViewOptions, BrowserOptions, IosOptio
       "enableViewportScale": enableViewportScale,
       "suppressesIncrementalRendering": suppressesIncrementalRendering,
       "allowsAirPlayForMediaPlayback": allowsAirPlayForMediaPlayback,
-      "allowsBackForwardNavigationGestures": allowsBackForwardNavigationGestures,
+      "allowsBackForwardNavigationGestures":
+          allowsBackForwardNavigationGestures,
       "allowsLinkPreview": allowsLinkPreview,
       "ignoresViewportScaleLimits": ignoresViewportScaleLimits,
       "allowsInlineMediaPlayback": allowsInlineMediaPlayback,
-      "allowsPictureInPictureMediaPlayback": allowsPictureInPictureMediaPlayback,
+      "allowsPictureInPictureMediaPlayback":
+          allowsPictureInPictureMediaPlayback,
       "isFraudulentWebsiteWarningEnabled": isFraudulentWebsiteWarningEnabled,
       "selectionGranularity": selectionGranularity.toValue(),
       "dataDetectorTypes": dataDetectorTypesList,
@@ -493,26 +647,34 @@ class IosInAppWebViewOptions implements WebViewOptions, BrowserOptions, IosOptio
     };
   }
 
-  @override
   static IosInAppWebViewOptions fromMap(Map<String, dynamic> map) {
     List<IosInAppWebViewDataDetectorTypes> dataDetectorTypes = [];
-    List<String> dataDetectorTypesList = List<String>.from(map["dataDetectorTypes"] ?? []);
+    List<String> dataDetectorTypesList =
+        List<String>.from(map["dataDetectorTypes"] ?? []);
     dataDetectorTypesList.forEach((dataDetectorType) {
-      dataDetectorTypes.add(IosInAppWebViewDataDetectorTypes.fromValue(dataDetectorType));
+      dataDetectorTypes
+          .add(IosInAppWebViewDataDetectorTypes.fromValue(dataDetectorType));
     });
 
     IosInAppWebViewOptions options = new IosInAppWebViewOptions();
     options.disallowOverScroll = map["disallowOverScroll"];
     options.enableViewportScale = map["enableViewportScale"];
-    options.suppressesIncrementalRendering = map["suppressesIncrementalRendering"];
+    options.suppressesIncrementalRendering =
-    options.allowsAirPlayForMediaPlayback = map["allowsAirPlayForMediaPlayback"];
+        map["suppressesIncrementalRendering"];
-    options.allowsBackForwardNavigationGestures = map["allowsBackForwardNavigationGestures"];
+    options.allowsAirPlayForMediaPlayback =
+        map["allowsAirPlayForMediaPlayback"];
+    options.allowsBackForwardNavigationGestures =
+        map["allowsBackForwardNavigationGestures"];
     options.allowsLinkPreview = map["allowsLinkPreview"];
     options.ignoresViewportScaleLimits = map["ignoresViewportScaleLimits"];
     options.allowsInlineMediaPlayback = map["allowsInlineMediaPlayback"];
-    options.allowsPictureInPictureMediaPlayback = map["allowsPictureInPictureMediaPlayback"];
+    options.allowsPictureInPictureMediaPlayback =
-    options.isFraudulentWebsiteWarningEnabled = map["isFraudulentWebsiteWarningEnabled"];
+        map["allowsPictureInPictureMediaPlayback"];
-    options.selectionGranularity = IosInAppWebViewSelectionGranularity.fromValue(map["selectionGranularity"]);
+    options.isFraudulentWebsiteWarningEnabled =
+        map["isFraudulentWebsiteWarningEnabled"];
+    options.selectionGranularity =
+        IosInAppWebViewSelectionGranularity.fromValue(
+            map["selectionGranularity"]);
     options.dataDetectorTypes = dataDetectorTypes;
     options.sharedCookiesEnabled = map["sharedCookiesEnabled"];
     return options;
@@ -520,18 +682,26 @@ class IosInAppWebViewOptions implements WebViewOptions, BrowserOptions, IosOptio
 }
 
 ///This class represents all the cross-platform [InAppBrowser] options available.
-class InAppBrowserOptions implements BrowserOptions, AndroidOptions, IosOptions {
+class InAppBrowserOptions
+    implements BrowserOptions, AndroidOptions, IosOptions {
   ///Set to `true` to create the browser and load the page, but not show it. Omit or set to `false` to have the browser open and load normally.
   ///The default value is `false`.
   bool hidden;
+
   ///Set to `false` to hide the toolbar at the top of the WebView. The default value is `true`.
   bool toolbarTop;
+
   ///Set the custom background color of the toolbar at the top.
   String toolbarTopBackgroundColor;
+
   ///Set to `true` to hide the url bar on the toolbar at the top. The default value is `false`.
   bool hideUrlBar;
 
-  InAppBrowserOptions({this.hidden = false, this.toolbarTop = true, this.toolbarTopBackgroundColor = "", this.hideUrlBar = false});
+  InAppBrowserOptions(
+      {this.hidden = false,
+      this.toolbarTop = true,
+      this.toolbarTopBackgroundColor = "",
+      this.hideUrlBar = false});
 
   @override
   Map<String, dynamic> toMap() {
@@ -543,7 +713,6 @@ class InAppBrowserOptions implements BrowserOptions, AndroidOptions, IosOptions
     };
   }
 
-  @override
   static InAppBrowserOptions fromMap(Map<String, dynamic> map) {
     InAppBrowserOptions options = new InAppBrowserOptions();
     options.hidden = map["hidden"];
@@ -558,14 +727,21 @@ class InAppBrowserOptions implements BrowserOptions, AndroidOptions, IosOptions
 class AndroidInAppBrowserOptions implements BrowserOptions, AndroidOptions {
   ///Set to `true` if you want the title should be displayed. The default value is `false`.
   bool hideTitleBar;
+
   ///Set the action bar's title.
   String toolbarTopFixedTitle;
+
   ///Set to `false` to not close the InAppBrowser when the user click on the back button and the WebView cannot go back to the history. The default value is `true`.
   bool closeOnCannotGoBack;
+
   ///Set to `false` to hide the progress bar at the bottom of the toolbar at the top. The default value is `true`.
   bool progressBar;
 
-  AndroidInAppBrowserOptions({this.hideTitleBar = true, this.toolbarTopFixedTitle = "", this.closeOnCannotGoBack = true, this.progressBar = true});
+  AndroidInAppBrowserOptions(
+      {this.hideTitleBar = true,
+      this.toolbarTopFixedTitle = "",
+      this.closeOnCannotGoBack = true,
+      this.progressBar = true});
 
   @override
   Map<String, dynamic> toMap() {
@@ -577,7 +753,6 @@ class AndroidInAppBrowserOptions implements BrowserOptions, AndroidOptions {
     };
   }
 
-  @override
   static AndroidInAppBrowserOptions fromMap(Map<String, dynamic> map) {
     AndroidInAppBrowserOptions options = new AndroidInAppBrowserOptions();
     options.hideTitleBar = map["hideTitleBar"];
@@ -592,24 +767,37 @@ class AndroidInAppBrowserOptions implements BrowserOptions, AndroidOptions {
 class IosInAppBrowserOptions implements BrowserOptions, IosOptions {
   ///Set to `false` to hide the toolbar at the bottom of the WebView. The default value is `true`.
   bool toolbarBottom;
+
   ///Set the custom background color of the toolbar at the bottom.
   String toolbarBottomBackgroundColor;
+
   ///Set to `true` to set the toolbar at the bottom translucent. The default value is `true`.
   bool toolbarBottomTranslucent;
+
   ///Set the custom text for the close button.
   String closeButtonCaption;
+
   ///Set the custom color for the close button.
   String closeButtonColor;
+
   ///Set the custom modal presentation style when presenting the WebView. The default value is [IosWebViewOptionsPresentationStyle.FULL_SCREEN].
   IosWebViewOptionsPresentationStyle presentationStyle;
+
   ///Set to the custom transition style when presenting the WebView. The default value is [IosWebViewOptionsTransitionStyle.COVER_VERTICAL].
   IosWebViewOptionsTransitionStyle transitionStyle;
+
   ///Set to `false` to hide the spinner when the WebView is loading a page. The default value is `true`.
   bool spinner;
 
-  IosInAppBrowserOptions({this.toolbarBottom = true, this.toolbarBottomBackgroundColor = "", this.toolbarBottomTranslucent = true, this.closeButtonCaption = "",
+  IosInAppBrowserOptions(
-    this.closeButtonColor = "", this.presentationStyle = IosWebViewOptionsPresentationStyle.FULL_SCREEN,
+      {this.toolbarBottom = true,
-    this.transitionStyle = IosWebViewOptionsTransitionStyle.COVER_VERTICAL, this.spinner = true});
+      this.toolbarBottomBackgroundColor = "",
+      this.toolbarBottomTranslucent = true,
+      this.closeButtonCaption = "",
+      this.closeButtonColor = "",
+      this.presentationStyle = IosWebViewOptionsPresentationStyle.FULL_SCREEN,
+      this.transitionStyle = IosWebViewOptionsTransitionStyle.COVER_VERTICAL,
+      this.spinner = true});
 
   @override
   Map<String, dynamic> toMap() {
@@ -625,7 +813,6 @@ class IosInAppBrowserOptions implements BrowserOptions, IosOptions {
     };
   }
 
-  @override
   static IosInAppBrowserOptions fromMap(Map<String, dynamic> map) {
     IosInAppBrowserOptions options = new IosInAppBrowserOptions();
     options.toolbarBottom = map["toolbarBottom"];
@@ -633,27 +820,39 @@ class IosInAppBrowserOptions implements BrowserOptions, IosOptions {
     options.toolbarBottomTranslucent = map["toolbarBottomTranslucent"];
     options.closeButtonCaption = map["closeButtonCaption"];
     options.closeButtonColor = map["closeButtonColor"];
-    options.presentationStyle = IosWebViewOptionsPresentationStyle.fromValue(map["presentationStyle"]);
+    options.presentationStyle =
-    options.transitionStyle = IosWebViewOptionsTransitionStyle.fromValue(map["transitionStyle"]);
+        IosWebViewOptionsPresentationStyle.fromValue(map["presentationStyle"]);
+    options.transitionStyle =
+        IosWebViewOptionsTransitionStyle.fromValue(map["transitionStyle"]);
     options.spinner = map["spinner"];
     return options;
   }
 }
 
 ///This class represents all the Android-only [ChromeSafariBrowser] options available.
-class AndroidChromeCustomTabsOptions implements ChromeSafariBrowserOptions, AndroidOptions {
+class AndroidChromeCustomTabsOptions
+    implements ChromeSafariBrowserOptions, AndroidOptions {
   ///Set to `false` if you don't want the default share button. The default value is `true`.
   bool addShareButton;
+
   ///Set to `false` if the title shouldn't be shown in the custom tab. The default value is `true`.
   bool showTitle;
+
   ///Set the custom background color of the toolbar.
   String toolbarBackgroundColor;
+
   ///Set to `true` to enable the url bar to hide as the user scrolls down on the page. The default value is `false`.
   bool enableUrlBarHiding;
+
   ///Set to `true` to enable Instant Apps. The default value is `false`.
   bool instantAppsEnabled;
 
-  AndroidChromeCustomTabsOptions({this.addShareButton = true, this.showTitle = true, this.toolbarBackgroundColor = "", this.enableUrlBarHiding = false, this.instantAppsEnabled = false});
+  AndroidChromeCustomTabsOptions(
+      {this.addShareButton = true,
+      this.showTitle = true,
+      this.toolbarBackgroundColor = "",
+      this.enableUrlBarHiding = false,
+      this.instantAppsEnabled = false});
 
   @override
   Map<String, dynamic> toMap() {
@@ -666,9 +865,9 @@ class AndroidChromeCustomTabsOptions implements ChromeSafariBrowserOptions, Andr
     };
   }
 
-  @override
   static AndroidChromeCustomTabsOptions fromMap(Map<String, dynamic> map) {
-    AndroidChromeCustomTabsOptions options = new AndroidChromeCustomTabsOptions();
+    AndroidChromeCustomTabsOptions options =
+        new AndroidChromeCustomTabsOptions();
     options.addShareButton = map["addShareButton"];
     options.showTitle = map["showTitle"];
     options.toolbarBackgroundColor = map["toolbarBackgroundColor"];
@@ -682,28 +881,39 @@ class AndroidChromeCustomTabsOptions implements ChromeSafariBrowserOptions, Andr
 class IosSafariOptions implements ChromeSafariBrowserOptions, IosOptions {
   ///Set to `true` if Reader mode should be entered automatically when it is available for the webpage. The default value is `false`.
   bool entersReaderIfAvailable;
+
   ///Set to `true` to enable bar collapsing. The default value is `false`.
   bool barCollapsingEnabled;
+
   ///Set the custom style for the dismiss button. The default value is [IosSafariOptionsDismissButtonStyle.DONE].
   ///
   ///**NOTE**: available on iOS 11.0+.
   IosSafariOptionsDismissButtonStyle dismissButtonStyle;
+
   ///Set the custom background color of the navigation bar and the toolbar.
   ///
   ///**NOTE**: available on iOS 10.0+.
   String preferredBarTintColor;
+
   ///Set the custom color of the control buttons on the navigation bar and the toolbar.
   ///
   ///**NOTE**: available on iOS 10.0+.
   String preferredControlTintColor;
+
   ///Set the custom modal presentation style when presenting the WebView. The default value is [IosWebViewOptionsPresentationStyle.FULL_SCREEN].
   IosWebViewOptionsPresentationStyle presentationStyle;
+
   ///Set to the custom transition style when presenting the WebView. The default value is [IosWebViewOptionsTransitionStyle.COVER_VERTICAL].
   IosWebViewOptionsTransitionStyle transitionStyle;
 
-  IosSafariOptions({this.entersReaderIfAvailable = false, this.barCollapsingEnabled = false, this.dismissButtonStyle = IosSafariOptionsDismissButtonStyle.DONE,
+  IosSafariOptions(
-    this.preferredBarTintColor = "", this.preferredControlTintColor = "", this.presentationStyle = IosWebViewOptionsPresentationStyle.FULL_SCREEN,
+      {this.entersReaderIfAvailable = false,
-    this.transitionStyle = IosWebViewOptionsTransitionStyle.COVER_VERTICAL});
+      this.barCollapsingEnabled = false,
+      this.dismissButtonStyle = IosSafariOptionsDismissButtonStyle.DONE,
+      this.preferredBarTintColor = "",
+      this.preferredControlTintColor = "",
+      this.presentationStyle = IosWebViewOptionsPresentationStyle.FULL_SCREEN,
+      this.transitionStyle = IosWebViewOptionsTransitionStyle.COVER_VERTICAL});
 
   @override
   Map<String, dynamic> toMap() {
@@ -718,16 +928,18 @@ class IosSafariOptions implements ChromeSafariBrowserOptions, IosOptions {
     };
   }
 
-  @override
   static IosSafariOptions fromMap(Map<String, dynamic> map) {
     IosSafariOptions options = new IosSafariOptions();
     options.entersReaderIfAvailable = map["entersReaderIfAvailable"];
     options.barCollapsingEnabled = map["barCollapsingEnabled"];
-    options.dismissButtonStyle = IosSafariOptionsDismissButtonStyle.fromValue(map["dismissButtonStyle"]);
+    options.dismissButtonStyle =
+        IosSafariOptionsDismissButtonStyle.fromValue(map["dismissButtonStyle"]);
     options.preferredBarTintColor = map["preferredBarTintColor"];
     options.preferredControlTintColor = map["preferredControlTintColor"];
-    options.presentationStyle = IosWebViewOptionsPresentationStyle.fromValue(map["presentationStyle"]);
+    options.presentationStyle =
-    options.transitionStyle = IosWebViewOptionsTransitionStyle.fromValue(map["transitionStyle"]);
+        IosWebViewOptionsPresentationStyle.fromValue(map["presentationStyle"]);
+    options.transitionStyle =
+        IosWebViewOptionsTransitionStyle.fromValue(map["transitionStyle"]);
     return options;
   }
-}
+}

pubspec.yaml

@@ -1,6 +1,6 @@
 name: flutter_inappwebview
 description: A Flutter plugin that allows you to add an inline webview or open an in-app browser window.
-version: 2.0.1
+version: 2.0.1+1
 author: Lorenzo Pichilli <pichillilorenzo@gmail.com>
 homepage: https://github.com/pichillilorenzo/flutter_inappwebview