[android_intent_plus] fix flutter/flutter#71518 by adding launchChooser method.

packages/android_intent_plus/CHANGELOG.md

@@ -1,3 +1,7 @@
+## pre-release
+
+- Add launchChooser method, which uses Intent.createChooser internally.
+
 ## 0.4.1
 
 - Renamed Method Channel and changed Java package to avoid collision with android_intent

packages/android_intent_plus/android/src/main/java/dev/fluttercommunity/plus/androidintent/IntentSender.java

@@ -59,6 +59,14 @@ void send(Intent intent) {
     }
   }
 
+  /**
+   * Like with {@code send}, creates and launches an intent with the given params, but wraps the
+   * {@code Intent} with {@code Intent.createChooser}.
+   */
+  public void launchChooser(Intent intent, String title) {
+    send(Intent.createChooser(intent, title));
+  }
+
   /**
    * Verifies the given intent and returns whether the application context class can resolve it.
    *
@@ -68,9 +76,9 @@ void send(Intent intent) {
    * <p>This currently only supports resolving activities.
    *
    * @param intent Fully built intent.
-   * @see #buildIntent(String, Integer, String, Uri, Bundle, String, ComponentName, String)
    * @return Whether the package manager found {@link android.content.pm.ResolveInfo} using its
    *     {@link PackageManager#resolveActivity(Intent, int)} method.
+   * @see #buildIntent(String, Integer, String, Uri, Bundle, String, ComponentName, String)
    */
   boolean canResolveActivity(Intent intent) {
     if (applicationContext == null) {

packages/android_intent_plus/android/src/main/java/dev/fluttercommunity/plus/androidintent/MethodCallHandlerImpl.java

@@ -92,6 +92,10 @@ public void onMethodCall(@NonNull MethodCall call, @NonNull Result result) {
     if ("launch".equalsIgnoreCase(call.method)) {
       sender.send(intent);
 
+      result.success(null);
+    } else if ("launchChooser".equalsIgnoreCase(call.method)) {
+      String title = call.argument("chooserTitle");
+      sender.launchChooser(intent, title);
       result.success(null);
     } else if ("canResolveActivity".equalsIgnoreCase(call.method)) {
       result.success(sender.canResolveActivity(intent));

packages/android_intent_plus/example/lib/main.dart

@@ -65,8 +65,15 @@ class MyHomePage extends StatelessWidget {
               onPressed: _createAlarm,
             ),
             RaisedButton(
-                child: const Text('Tap here to test explicit intents.'),
-                onPressed: () => _openExplicitIntentsView(context)),
+              child: const Text(
+                'Tap here to launch Intent with Chooser',
+              ),
+              onPressed: _openChooser,
+            ),
+            RaisedButton(
+              child: const Text('Tap here to test explicit intents.'),
+              onPressed: () => _openExplicitIntentsView(context),
+            ),
           ],
         ),
       );
@@ -80,6 +87,15 @@ class MyHomePage extends StatelessWidget {
       body: Center(child: body),
     );
   }
+
+  void _openChooser() {
+    final intent = const AndroidIntent(
+      action: 'android.intent.action.SEND',
+      type: 'plain/text',
+      data: 'text example',
+    );
+    intent.launchChooser('Chose an app');
+  }
 }
 
 /// Launches intents to specific Android activities.
@@ -204,7 +220,7 @@ class ExplicitIntentsWidget extends StatelessWidget {
                   'Tap here to open Application Details',
                 ),
                 onPressed: _openApplicationDetails,
-              )
+              ),
             ],
           ),
         ),

packages/android_intent_plus/example/test_driver/android_intent_plus_e2e.dart

@@ -24,7 +24,7 @@ void main() {
           (Widget widget) =>
               widget is Text && widget.data.startsWith('Tap here'),
         ),
-        findsNWidgets(2),
+        findsNWidgets(3),
       );
     } else {
       expect(
@@ -49,6 +49,15 @@ void main() {
     }));
   }, skip: !Platform.isAndroid);
 
+  testWidgets('#launchChooser should not throw', (WidgetTester tester) async {
+    final intent = const AndroidIntent(
+      action: 'android.intent.action.SEND',
+      type: 'plain/text',
+      data: 'text example',
+    );
+    await intent.launchChooser('title');
+  }, skip: !Platform.isAndroid);
+
   testWidgets('#canResolveActivity returns true when example Activity is found',
       (WidgetTester tester) async {
     final intent = AndroidIntent(

packages/android_intent_plus/lib/android_intent.dart

@@ -138,6 +138,22 @@ class AndroidIntent {
     await _channel.invokeMethod<void>('launch', _buildArguments());
   }
 
+  /// Launch the intent with 'createChooser(intent, title)'.
+  ///
+  /// This works only on Android platforms.
+  Future<void> launchChooser(String title) async {
+    if (!_platform.isAndroid) {
+      return;
+    }
+
+    final buildArguments = _buildArguments();
+    buildArguments['chooserTitle'] = title;
+    await _channel.invokeMethod<void>(
+      'launchChooser',
+      buildArguments,
+    );
+  }
+
   /// Check whether the intent can be resolved to an activity.
   ///
   /// This works only on Android platforms.

packages/android_intent_plus/test/android_intent_test.dart

@@ -140,6 +140,21 @@ void main() {
         verifyZeroInteractions(mockChannel);
       });
     });
+
+    group('launchChooser', () {
+      test('pass title', () async {
+        androidIntent = AndroidIntent.private(
+          action: 'action_view',
+          channel: mockChannel,
+          platform: FakePlatform(operatingSystem: 'android'),
+        );
+        await androidIntent.launchChooser('title');
+        verify(mockChannel.invokeMethod<void>('launchChooser', <String, Object>{
+          'action': 'action_view',
+          'chooserTitle': 'title',
+        }));
+      });
+    });
   });
 
   group('convertFlags ', () {