updated README.md, fix #358

CHANGELOG.md

@@ -6,6 +6,7 @@
 - Added `onEnterFullscreen`, `onExitFullscreen` webview events
 - Fixed `Print preview is not working? java.lang.IllegalStateException: Can print only from an activity` [#128](https://github.com/pichillilorenzo/flutter_inappwebview/issues/128)
 - Fixed `onJsAlert`, `onJsConfirm`, `onJsPrompt` for `InAppBrowser` on Android
+- Fixed `InAppBrowser.openWithSystemBrowser crash on iOS` [#358](https://github.com/pichillilorenzo/flutter_inappwebview/issues/358)
 
 ## 3.2.0
 

README.md

@@ -7,7 +7,7 @@
 [![Donate to this project using Paypal](https://img.shields.io/badge/paypal-donate-yellow.svg)](https://www.paypal.me/LorenzoPichilli)
 [![Donate to this project using Patreon](https://img.shields.io/badge/patreon-donate-yellow.svg)](https://www.patreon.com/bePatron?u=9269604)
 
-A Flutter plugin that allows you to add an inline webview or open an in-app browser window.
+A Flutter plugin that allows you to add an inline webview, to use an headless webview, and to open an in-app browser window.
 
 ### Requirements
 
@@ -16,13 +16,32 @@ A Flutter plugin that allows you to add an inline webview or open an in-app brow
 - Android: `minSdkVersion 17` and add support for `androidx` (see [AndroidX Migration](https://flutter.dev/docs/development/androidx-migration) to migrate an existing app)
 - iOS: `--ios-language swift`, Xcode version `>= 11`
 
+### IMPORTANT Note for Android and iOS
+
+If you're running an application and need to access the binary messenger before `runApp()` has been called
+(for example, during plugin initialization), then you need to explicitly call the `WidgetsFlutterBinding.ensureInitialized()` first.
+
+An example:
+```dart
+void main() {
+  // it should be the first line in main method
+  WidgetsFlutterBinding.ensureInitialized();
+
+  // rest of your app code
+  runApp(MyApp());
+}
+```
+
 ### IMPORTANT Note for Android
 
-If you are starting a new fresh app, you need to create the Flutter App with `flutter create --androidx -i swift` to add support for `androidx`, otherwise it won't work (see [AndroidX Migration](https://flutter.dev/docs/development/androidx-migration) to migrate an existing app).
+If you are starting a new fresh app, you need to create the Flutter App with `flutter create --androidx -i swift`
+to add support for `androidx`, otherwise it won't work (see [AndroidX Migration](https://flutter.dev/docs/development/androidx-migration) to migrate an existing app).
 
-During the build, if Android fails with `Error: uses-sdk:minSdkVersion 16 cannot be smaller than version 17 declared in library`, it means that you need to update the `minSdkVersion` of your `android/app/build.gradle` file to at least `17`.
+During the build, if Android fails with `Error: uses-sdk:minSdkVersion 16 cannot be smaller than version 17 declared in library`,
+it means that you need to update the `minSdkVersion` of your `android/app/build.gradle` file to at least `17`.
 
-Also, you need to add `<uses-permission android:name="android.permission.INTERNET"/>` in the `android/app/src/main/AndroidManifest.xml` file in order to give minimum permission to perform network operations in your application.
+Also, you need to add `<uses-permission android:name="android.permission.INTERNET"/>` in the `android/app/src/main/AndroidManifest.xml`
+file in order to give minimum permission to perform network operations in your application.
 
 If you `flutter create`d your project prior to version `1.12`, you need to make sure to update your project in order to use the new **Java Embedding API**!
 Take a look at the official Flutter wiki: [Upgrading pre 1.12 Android projects](https://github.com/flutter/flutter/wiki/Upgrading-pre-1.12-Android-projects).
@@ -42,7 +61,8 @@ Also, note that to use the `InAppWebView` widget on Android, it requires **Andro
 
 ### IMPORTANT Note for iOS
 
-If you are starting a new fresh app, you need to create the Flutter App with `flutter create --androidx -i swift` (see [flutter/flutter#13422 (comment)](https://github.com/flutter/flutter/issues/13422#issuecomment-392133780)), otherwise, you will get this message:
+If you are starting a new fresh app, you need to create the Flutter App with `flutter create --androidx -i swift`
+(see [flutter/flutter#13422 (comment)](https://github.com/flutter/flutter/issues/13422#issuecomment-392133780)), otherwise, you will get this message:
 ```
 === BUILD TARGET flutter_inappwebview OF PROJECT Pods WITH CONFIGURATION Debug ===
 The “Swift Language Version” (SWIFT_VERSION) build setting must be set to a supported value for targets which use Swift. Supported values are: 3.0, 4.0, 4.2, 5.0. This setting can be set in the build settings editor.

example/.flutter-plugins-dependencies

@@ -1 +1 @@
-{"info":"This is a generated file; do not edit or check into version control.","plugins":{"ios":[{"name":"e2e","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/e2e-0.2.4+4/","dependencies":[]},{"name":"flutter_inappwebview","path":"/Users/lorenzopichilli/Desktop/flutter_inappwebview/","dependencies":[]}],"android":[{"name":"e2e","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/e2e-0.2.4+4/","dependencies":[]},{"name":"flutter_inappwebview","path":"/Users/lorenzopichilli/Desktop/flutter_inappwebview/","dependencies":[]}],"macos":[],"linux":[],"windows":[],"web":[]},"dependencyGraph":[{"name":"e2e","dependencies":[]},{"name":"flutter_inappwebview","dependencies":[]}],"date_created":"2020-05-23 00:16:16.872956","version":"1.17.1"}
+{"info":"This is a generated file; do not edit or check into version control.","plugins":{"ios":[{"name":"e2e","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/e2e-0.2.4+4/","dependencies":[]},{"name":"flutter_inappwebview","path":"/Users/lorenzopichilli/Desktop/flutter_inappwebview/","dependencies":[]}],"android":[{"name":"e2e","path":"/Users/lorenzopichilli/flutter/.pub-cache/hosted/pub.dartlang.org/e2e-0.2.4+4/","dependencies":[]},{"name":"flutter_inappwebview","path":"/Users/lorenzopichilli/Desktop/flutter_inappwebview/","dependencies":[]}],"macos":[],"linux":[],"windows":[],"web":[]},"dependencyGraph":[{"name":"e2e","dependencies":[]},{"name":"flutter_inappwebview","dependencies":[]}],"date_created":"2020-05-23 12:13:45.779062","version":"1.17.1"}

example/ios/Runner.xcodeproj/project.pbxproj

@@ -255,20 +255,14 @@
 			inputPaths = (
 				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh",
 				"${PODS_ROOT}/../Flutter/Flutter.framework",
-				"${BUILT_PRODUCTS_DIR}/Reachability/Reachability.framework",
+				"${BUILT_PRODUCTS_DIR}/e2e/e2e.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",
 			);
 			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}/e2e.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",
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;

example/lib/in_app_browser_example.screen.dart

@@ -37,7 +37,8 @@ class MyInAppBrowser extends InAppBrowser {
   }
 
   @override
-  Future<ShouldOverrideUrlLoadingAction> shouldOverrideUrlLoading(ShouldOverrideUrlLoadingRequest shouldOverrideUrlLoadingRequest) async {
+  Future<ShouldOverrideUrlLoadingAction> shouldOverrideUrlLoading(
+      ShouldOverrideUrlLoadingRequest shouldOverrideUrlLoadingRequest) async {
     print("\n\nOverride ${shouldOverrideUrlLoadingRequest.url}\n\n");
     return ShouldOverrideUrlLoadingAction.ALLOW;
   }
@@ -85,19 +86,29 @@ class _InAppBrowserExampleScreenState extends State<InAppBrowserExampleScreen> {
         )),
         drawer: myDrawer(context: context),
         body: Center(
-          child: RaisedButton(
+            child: Column(
-              onPressed: () async {
+              mainAxisAlignment: MainAxisAlignment.center,
-                await widget.browser.openFile(
+              children: <Widget>[
-                    assetFilePath: "assets/index.html",
+                RaisedButton(
-                    options: InAppBrowserClassOptions(
+                    onPressed: () async {
-                        inAppWebViewGroupOptions: InAppWebViewGroupOptions(
+                      await widget.browser.openFile(
-                            crossPlatform: InAppWebViewOptions(
+                          assetFilePath: "assets/index.html",
-                              debuggingEnabled: true,
+                          options: InAppBrowserClassOptions(
-                              useShouldOverrideUrlLoading: true,
+                              inAppWebViewGroupOptions: InAppWebViewGroupOptions(
-                              useOnLoadResource: true,
+                                  crossPlatform: InAppWebViewOptions(
-                    ))));
+                            debuggingEnabled: true,
-              },
+                            useShouldOverrideUrlLoading: true,
-              child: Text("Open Webview Browser")),
+                            useOnLoadResource: true,
-        ));
+                          ))));
+                    },
+                    child: Text("Open Webview Browser")),
+                Container(height: 40),
+                RaisedButton(
+                    onPressed: () async {
+                      await InAppBrowser.openWithSystemBrowser(
+                          url: "https://flutter.dev/");
+                    },
+                    child: Text("Open System Browser")),
+            ])));
   }
 }

ios/Classes/InAppBrowserManager.swift

@@ -34,10 +34,10 @@ public class InAppBrowserManager: NSObject, FlutterPlugin {
     
     public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
         let arguments = call.arguments as? NSDictionary
-        let uuid: String = arguments!["uuid"] as! String
 
         switch call.method {
             case "openUrl":
+                let uuid = arguments!["uuid"] as! String
                 let url = arguments!["url"] as! String
                 let options = arguments!["options"] as! [String: Any?]
                 let headers = arguments!["headers"] as! [String: String]
@@ -46,6 +46,7 @@ public class InAppBrowserManager: NSObject, FlutterPlugin {
                 result(true)
                 break
             case "openFile":
+                let uuid = arguments!["uuid"] as! String
                 var url = arguments!["url"] as! String
                 let key = InAppBrowserManager.registrar!.lookupKey(forAsset: url)
                 let assetURL = Bundle.main.url(forResource: key, withExtension: nil)
@@ -62,6 +63,7 @@ public class InAppBrowserManager: NSObject, FlutterPlugin {
                 result(true)
                 break
             case "openData":
+                let uuid = arguments!["uuid"] as! String
                 let options = arguments!["options"] as! [String: Any?]
                 let data = arguments!["data"] as! String
                 let mimeType = arguments!["mimeType"] as! String

pubspec.yaml

@@ -1,5 +1,5 @@
 name: flutter_inappwebview
-description: A Flutter plugin that allows you to add an inline webview or open an in-app browser window.
+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: 3.3.0
 homepage: https://github.com/pichillilorenzo/flutter_inappwebview