fix #1159

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 5.4.3+1
+
+- Fixed "Latest version 5.4.3 crashes on Android" [#1159](https://github.com/pichillilorenzo/flutter_inappwebview/issues/1159)
+
 ## 5.4.3
 
 - Added Bitwise OR operator support for `AndroidActionModeMenuItem` class

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/chrome_custom_tabs/ChromeCustomTabsActivity.java

@@ -36,7 +36,8 @@ public class ChromeCustomTabsActivity extends Activity implements MethodChannel.
   public String id;
   public CustomTabsIntent.Builder builder;
   public ChromeCustomTabsOptions options;
-  public CustomTabActivityHelper customTabActivityHelper;
+  public CustomTabActivityHelper customTabActivityHelper = new CustomTabActivityHelper();
+  @Nullable
   public CustomTabsSession customTabsSession;
   protected final int CHROME_CUSTOM_TAB_REQUEST_CODE = 100;
   protected boolean onChromeSafariBrowserOpened = false;
@@ -60,7 +61,8 @@ public class ChromeCustomTabsActivity extends Activity implements MethodChannel.
     id = b.getString("id");
 
     String managerId = b.getString("managerId");
-    manager = (ChromeSafariBrowserManager) ChromeSafariBrowserManager.shared.get(managerId);
+    manager = ChromeSafariBrowserManager.shared.get(managerId);
+    if (manager == null || manager.plugin == null|| manager.plugin.messenger == null) return;
 
     channel = new MethodChannel(manager.plugin.messenger, "com.pichillilorenzo/flutter_chromesafaribrowser_" + id);
     channel.setMethodCallHandler(this);
@@ -77,7 +79,6 @@ public class ChromeCustomTabsActivity extends Activity implements MethodChannel.
     
     final ChromeCustomTabsActivity chromeCustomTabsActivity = this;
 
-    customTabActivityHelper = new CustomTabActivityHelper();
     customTabActivityHelper.setConnectionCallback(new CustomTabActivityHelper.ConnectionCallback() {
       @Override
       public void onCustomTabsConnected() {

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/credential_database/CredentialDatabaseHandler.java

@@ -112,7 +112,9 @@ public class CredentialDatabaseHandler implements MethodChannel.MethodCallHandle
         break;
       case "clearAllAuthCredentials":
         credentialDatabase.clearAllAuthCredentials();
-        WebViewDatabase.getInstance(plugin.applicationContext).clearHttpAuthUsernamePassword();
+        if (plugin != null && plugin.applicationContext != null) {
+          WebViewDatabase.getInstance(plugin.applicationContext).clearHttpAuthUsernamePassword();
+        }
         result.success(true);
         break;
       default:

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/headless_in_app_webview/HeadlessInAppWebView.java

@@ -111,12 +111,16 @@ public class HeadlessInAppWebView implements MethodChannel.MethodCallHandler {
 
   public void dispose() {
     channel.setMethodCallHandler(null);
-    HeadlessInAppWebViewManager.webViews.remove(id);
+    if (HeadlessInAppWebViewManager.webViews.containsKey(id)) {
+      HeadlessInAppWebViewManager.webViews.put(id, null);
+    }
     if (plugin != null && plugin.activity != null) {
       ViewGroup contentView = (ViewGroup) plugin.activity.findViewById(android.R.id.content);
-      ViewGroup mainView = (ViewGroup) (contentView).getChildAt(0);
-      if (mainView != null && flutterWebView != null) {
-        mainView.removeView(flutterWebView.getView());
+      if (contentView != null) {
+        ViewGroup mainView = (ViewGroup) (contentView).getChildAt(0);
+        if (mainView != null && flutterWebView != null) {
+          mainView.removeView(flutterWebView.getView());
+        }
       }
     }
     if (flutterWebView != null) {

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/headless_in_app_webview/HeadlessInAppWebViewManager.java

@@ -26,6 +26,8 @@ import androidx.annotation.Nullable;
 import com.pichillilorenzo.flutter_inappwebview.InAppWebViewFlutterPlugin;
 import com.pichillilorenzo.flutter_inappwebview.in_app_webview.FlutterWebView;
 
+import org.jetbrains.annotations.NotNull;
+
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
@@ -50,7 +52,7 @@ public class HeadlessInAppWebViewManager implements MethodChannel.MethodCallHand
   }
 
   @Override
-  public void onMethodCall(final MethodCall call, final Result result) {
+  public void onMethodCall(final MethodCall call, @NotNull final Result result) {
     final String id = (String) call.argument("id");
 
     switch (call.method) {
@@ -64,10 +66,11 @@ public class HeadlessInAppWebViewManager implements MethodChannel.MethodCallHand
       default:
         result.notImplemented();
     }
-
   }
 
   public void run(String id, HashMap<String, Object> params) {
+    if (plugin == null || plugin.activity == null) return;
+
     FlutterWebView flutterWebView = new FlutterWebView(plugin, plugin.activity, id, params);
     HeadlessInAppWebView headlessInAppWebView = new HeadlessInAppWebView(plugin, id, flutterWebView);
     HeadlessInAppWebViewManager.webViews.put(id, headlessInAppWebView);

android/src/main/java/com/pichillilorenzo/flutter_inappwebview/in_app_browser/InAppBrowserActivity.java

@@ -73,7 +73,8 @@ public class InAppBrowserActivity extends AppCompatActivity implements InAppBrow
     id = b.getString("id");
 
     String managerId = b.getString("managerId");
-    manager = (InAppBrowserManager) InAppBrowserManager.shared.get(managerId);
+    manager = InAppBrowserManager.shared.get(managerId);
+    if (manager == null || manager.plugin == null|| manager.plugin.messenger == null) return;
     
     windowId = b.getInt("windowId");
 
@@ -500,7 +501,7 @@ public class InAppBrowserActivity extends AppCompatActivity implements InAppBrow
       methodCallDelegate = null;
     }
     if (webView != null) {
-      if (manager.plugin.activityPluginBinding != null) {
+      if (manager != null && manager.plugin != null && manager.plugin.activityPluginBinding != null) {
         manager.plugin.activityPluginBinding.removeActivityResultListener(webView.inAppWebViewChromeClient);
       }
       ViewGroup vg = (ViewGroup) (webView.getParent());

example/ios/Flutter/Flutter.podspec

@@ -0,0 +1,18 @@
+#
+# NOTE: This podspec is NOT to be published. It is only used as a local source!
+#       This is a generated file; do not edit or check into version control.
+#
+
+Pod::Spec.new do |s|
+  s.name             = 'Flutter'
+  s.version          = '1.0.0'
+  s.summary          = 'High-performance, high-fidelity mobile apps.'
+  s.homepage         = 'https://flutter.io'
+  s.license          = { :type => 'MIT' }
+  s.author           = { 'Flutter Dev Team' => 'flutter-dev@googlegroups.com' }
+  s.source           = { :git => 'https://github.com/flutter/engine', :tag => s.version.to_s }
+  s.ios.deployment_target = '9.0'
+  # Framework linking is handled by Flutter tooling, not CocoaPods.
+  # Add a placeholder to satisfy `s.dependency 'Flutter'` plugin podspecs.
+  s.vendored_frameworks = 'path/to/nothing'
+end

example/ios/Flutter/flutter_export_environment.sh

@@ -3,11 +3,12 @@
 export "FLUTTER_ROOT=/Users/lorenzopichilli/fvm/versions/2.10.4"
 export "FLUTTER_APPLICATION_PATH=/Users/lorenzopichilli/Desktop/flutter_inappwebview/example"
 export "COCOAPODS_PARALLEL_CODE_SIGN=true"
-export "FLUTTER_TARGET=lib/main.dart"
+export "FLUTTER_TARGET=integration_test/webview_flutter_test.dart"
 export "FLUTTER_BUILD_DIR=build"
 export "FLUTTER_BUILD_NAME=1.0.0"
 export "FLUTTER_BUILD_NUMBER=1"
+export "DART_DEFINES=RkxVVFRFUl9XRUJfQVVUT19ERVRFQ1Q9dHJ1ZQ=="
 export "DART_OBFUSCATION=false"
-export "TRACK_WIDGET_CREATION=false"
+export "TRACK_WIDGET_CREATION=true"
 export "TREE_SHAKE_ICONS=false"
-export "PACKAGE_CONFIG=.packages"
+export "PACKAGE_CONFIG=/Users/lorenzopichilli/Desktop/flutter_inappwebview/example/.dart_tool/package_config.json"

ios/Classes/HeadlessInAppWebView/HeadlessInAppWebView.swift

@@ -89,7 +89,7 @@ public class HeadlessInAppWebView : FlutterMethodCallDelegate {
     public func dispose() {
         channel?.setMethodCallHandler(nil)
         channel = nil
-        HeadlessInAppWebViewManager.webViews.removeValue(forKey: id)
+        HeadlessInAppWebViewManager.webViews[id] = nil
         flutterWebView = nil
     }
     

ios/Classes/HeadlessInAppWebView/HeadlessInAppWebViewManager.swift

@@ -16,7 +16,7 @@ import AVFoundation
 public class HeadlessInAppWebViewManager: NSObject, FlutterPlugin {
     static var registrar: FlutterPluginRegistrar?
     static var channel: FlutterMethodChannel?
-    static var webViews: [String: HeadlessInAppWebView] = [:]
+    static var webViews: [String: HeadlessInAppWebView?] = [:]
     
     public static func register(with registrar: FlutterPluginRegistrar) {
         
@@ -63,8 +63,8 @@ public class HeadlessInAppWebViewManager: NSObject, FlutterPlugin {
         HeadlessInAppWebViewManager.channel = nil
         HeadlessInAppWebViewManager.registrar = nil
         let headlessWebViews = HeadlessInAppWebViewManager.webViews.values
-        headlessWebViews.forEach { (headlessWebView: HeadlessInAppWebView) in
-            headlessWebView.dispose()
+        headlessWebViews.forEach { (headlessWebView: HeadlessInAppWebView?) in
+            headlessWebView?.dispose()
         }
         HeadlessInAppWebViewManager.webViews.removeAll()
     }

pubspec.yaml

@@ -1,6 +1,6 @@
 name: flutter_inappwebview
 description: A Flutter plugin that allows you to add an inline webview, to use an headless webview, and to open an in-app browser window.
-version: 5.4.3
+version: 5.4.3+1
 homepage: https://github.com/pichillilorenzo/flutter_inappwebview
 
 environment: