I've added the pickMultiVideo feature to image_picker.

packages/image_picker/image_picker/CHANGELOG.md

@@ -1,5 +1,10 @@
-## NEXT
+## 1.3.0
 
+* feat: Add pickMultiVideo.
+
+## 1.2.0
+
+* feat: Add pickMultiVideo.
 * Updates minimum supported SDK version to Flutter 3.27/Dart 3.6.
 
 ## 1.1.2

packages/image_picker/image_picker/example/pubspec.yaml

@@ -31,3 +31,13 @@ dev_dependencies:
 
 flutter:
   uses-material-design: true
+# FOR TESTING AND INITIAL REVIEW ONLY. DO NOT MERGE.
+# See https://github.com/flutter/flutter/blob/master/docs/ecosystem/contributing/README.md#changing-federated-plugins
+dependency_overrides:
+  image_picker_android: {path: ../../../../packages/image_picker/image_picker_android}
+  image_picker_for_web: {path: ../../../../packages/image_picker/image_picker_for_web}
+  image_picker_ios: {path: ../../../../packages/image_picker/image_picker_ios}
+  image_picker_linux: {path: ../../../../packages/image_picker/image_picker_linux}
+  image_picker_macos: {path: ../../../../packages/image_picker/image_picker_macos}
+  image_picker_platform_interface: {path: ../../../../packages/image_picker/image_picker_platform_interface}
+  image_picker_windows: {path: ../../../../packages/image_picker/image_picker_windows}

packages/image_picker/image_picker/lib/image_picker.dart

@@ -298,6 +298,45 @@ class ImagePicker {
     );
   }
 
+  /// Returns a [List<XFile>] of the videos that were picked.
+  ///
+  /// The returned [List<XFile>] is intended to be used within a single app session.
+  /// Do not save the file path and use it across sessions.
+  ///
+  /// The `source` argument controls where the videos come from. This can
+  /// be either [ImageSource.camera] or [ImageSource.gallery].
+  ///
+  /// The [maxDuration] argument specifies the maximum duration of the captured videos.
+  /// If no [maxDuration] is specified, the maximum duration will be infinite.
+  ///
+  /// Use `preferredCameraDevice` to specify the camera to use when the `source` is
+  /// [ImageSource.camera]. The `preferredCameraDevice` is ignored when `source` is
+  /// [ImageSource.gallery]. It is also ignored if the chosen camera is not supported
+  /// on the device. Defaults to [CameraDevice.rear].
+  ///
+  /// The `limit` parameter modifies the maximum number of videos that can be selected.
+  /// This value may be ignored by platforms that cannot support it.
+  ///
+  /// In Android, the MainActivity can be destroyed for various reasons. If that happens,
+  /// the result will be lost in this call. You can then call [retrieveLostData] when your
+  /// app relaunches to retrieve the lost data.
+  ///
+  /// The method could throw [PlatformException] if the app does not have permission to access
+  /// the camera or photos gallery, no camera is available, plugin is already in use,
+  /// temporary file could not be created and video could not be cached (iOS only),
+  /// plugin activity could not be allocated (Android only) or due to an unknown error.
+  Future<List<XFile>> pickMultiVideo({
+    Duration? maxDuration,
+    int? limit,
+  }) {
+    return platform.getMultiVideoWithOptions(
+      options: MultiVideoPickerOptions(
+        maxDuration: maxDuration,
+        limit: limit,
+      ),
+    );
+  }
+
   /// Retrieve the lost [XFile] when [pickImage], [pickMultiImage] or [pickVideo] failed because the MainActivity
   /// is destroyed. (Android only)
   ///

packages/image_picker/image_picker/pubspec.yaml

@@ -3,7 +3,7 @@ description: Flutter plugin for selecting images from the Android and iOS image
   library, and taking new pictures with the camera.
 repository: https://github.com/flutter/packages/tree/main/packages/image_picker/image_picker
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+image_picker%22
-version: 1.1.2
+version: 1.3.0
 
 environment:
   sdk: ^3.6.0
@@ -49,3 +49,13 @@ topics:
   - image-picker
   - files
   - file-selection
+# FOR TESTING AND INITIAL REVIEW ONLY. DO NOT MERGE.
+# See https://github.com/flutter/flutter/blob/master/docs/ecosystem/contributing/README.md#changing-federated-plugins
+dependency_overrides:
+  image_picker_android: {path: ../../../packages/image_picker/image_picker_android}
+  image_picker_for_web: {path: ../../../packages/image_picker/image_picker_for_web}
+  image_picker_ios: {path: ../../../packages/image_picker/image_picker_ios}
+  image_picker_linux: {path: ../../../packages/image_picker/image_picker_linux}
+  image_picker_macos: {path: ../../../packages/image_picker/image_picker_macos}
+  image_picker_platform_interface: {path: ../../../packages/image_picker/image_picker_platform_interface}
+  image_picker_windows: {path: ../../../packages/image_picker/image_picker_windows}

packages/image_picker/image_picker/test/image_picker_test.dart

@@ -397,6 +397,32 @@ void main() {
           expect(response.exception!.message, 'test_error_message');
         });
       });
+
+      group('#pickMultiVideo', () {
+        setUp(() {
+          when(mockPlatform.getMultiVideoWithOptions(
+            options: any,
+          )).thenAnswer((Invocation _) async => <XFile>[]);
+        });
+
+        test('passes the arguments correctly', () async {
+          final ImagePicker picker = ImagePicker();
+          await picker.pickMultiVideo();
+          await picker.pickMultiVideo(maxDuration: const Duration(seconds: 10));
+          await picker.pickMultiVideo(
+            limit: 5,
+          );
+
+          verifyInOrder(<Object>[
+            mockPlatform.getMultiVideoWithOptions(),
+            mockPlatform.getMultiVideoWithOptions(
+                options: const MultiVideoPickerOptions(
+                    maxDuration: Duration(seconds: 10))),
+            mockPlatform.getMultiVideoWithOptions(
+                options: const MultiVideoPickerOptions(limit: 5)),
+          ]);
+        });
+      });
     });
 
     group('#Multi images', () {

packages/image_picker/image_picker/test/image_picker_test.mocks.dart

@@ -1,4 +1,4 @@
-// Mocks generated by Mockito 5.4.4 from annotations
+// Mocks generated by Mockito 5.4.6 from annotations
 // in image_picker/test/image_picker_test.dart.
 // Do not manually edit this file.
 
@@ -19,6 +19,7 @@ import 'package:mockito/mockito.dart' as _i1;
 // ignore_for_file: deprecated_member_use_from_same_package
 // ignore_for_file: implementation_imports
 // ignore_for_file: invalid_use_of_visible_for_testing_member
+// ignore_for_file: must_be_immutable
 // ignore_for_file: prefer_const_constructors
 // ignore_for_file: unnecessary_parenthesis
 // ignore_for_file: camel_case_types
@@ -248,6 +249,19 @@ class MockImagePickerPlatform extends _i1.Mock
         returnValue: _i4.Future<List<_i5.XFile>>.value(<_i5.XFile>[]),
       ) as _i4.Future<List<_i5.XFile>>);
 
+  @override
+  _i4.Future<List<_i5.XFile>> getMultiVideoWithOptions(
+          {_i2.MultiVideoPickerOptions? options =
+              const _i2.MultiVideoPickerOptions()}) =>
+      (super.noSuchMethod(
+        Invocation.method(
+          #getMultiVideoWithOptions,
+          [],
+          {#options: options},
+        ),
+        returnValue: _i4.Future<List<_i5.XFile>>.value(<_i5.XFile>[]),
+      ) as _i4.Future<List<_i5.XFile>>);
+
   @override
   bool supportsImageSource(_i2.ImageSource? source) => (super.noSuchMethod(
         Invocation.method(

packages/image_picker/image_picker_android/CHANGELOG.md

@@ -1,3 +1,11 @@
+## 0.8.14
+
+* feat: Add pickMultiVideo.
+
+## 0.8.13
+
+* feat: Add pickMultiVideo.
+
 ## 0.8.12+24
 
 * Updates `androidx.activity:activity` to 1.10.1.

packages/image_picker/image_picker_android/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java

@@ -35,6 +35,7 @@
 import java.util.UUID;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
+import java.util.stream.Collectors;
 
 /**
  * A delegate class doing the heavy lifting for the plugin.
@@ -81,6 +82,7 @@ public class ImagePickerDelegate
   @VisibleForTesting static final int REQUEST_CAMERA_IMAGE_PERMISSION = 2345;
   @VisibleForTesting static final int REQUEST_CODE_CHOOSE_MULTI_IMAGE_FROM_GALLERY = 2346;
   @VisibleForTesting static final int REQUEST_CODE_CHOOSE_MEDIA_FROM_GALLERY = 2347;
+  @VisibleForTesting static final int REQUEST_CODE_CHOOSE_MULTI_VIDEO_FROM_GALLERY = 2348;
 
   @VisibleForTesting static final int REQUEST_CODE_CHOOSE_VIDEO_FROM_GALLERY = 2352;
   @VisibleForTesting static final int REQUEST_CODE_TAKE_VIDEO_WITH_CAMERA = 2353;
@@ -474,6 +476,38 @@ private void launchMultiPickImageFromGalleryIntent(Boolean usePhotoPicker, int l
         pickMultiImageIntent, REQUEST_CODE_CHOOSE_MULTI_IMAGE_FROM_GALLERY);
   }
 
+  public void chooseMultiVideoFromGallery(
+      @NonNull VideoSelectionOptions options,
+      boolean usePhotoPicker,
+      int limit,
+      @NonNull Messages.Result<List<String>> result) {
+    if (!setPendingOptionsAndResult(null, options, result)) {
+      finishWithAlreadyActiveError(result);
+      return;
+    }
+
+    launchMultiPickVideoFromGalleryIntent(usePhotoPicker, limit);
+  }
+
+  private void launchMultiPickVideoFromGalleryIntent(Boolean usePhotoPicker, int limit) {
+    Intent pickMultiVideoIntent;
+    if (usePhotoPicker) {
+      pickMultiVideoIntent =
+          new ActivityResultContracts.PickMultipleVisualMedia(limit)
+              .createIntent(
+                  activity,
+                  new PickVisualMediaRequest.Builder()
+                      .setMediaType(ActivityResultContracts.PickVisualMedia.VideoOnly.INSTANCE)
+                      .build());
+    } else {
+      pickMultiVideoIntent = new Intent(Intent.ACTION_GET_CONTENT);
+      pickMultiVideoIntent.setType("video/*");
+      pickMultiVideoIntent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
+    }
+    activity.startActivityForResult(
+        pickMultiVideoIntent, REQUEST_CODE_CHOOSE_MULTI_VIDEO_FROM_GALLERY);
+  }
+
   public void takeImageWithCamera(
       @NonNull ImageSelectionOptions options, @NonNull Messages.Result<List<String>> result) {
     if (!setPendingOptionsAndResult(options, null, result)) {
@@ -617,6 +651,9 @@ public boolean onActivityResult(
       case REQUEST_CODE_CHOOSE_MULTI_IMAGE_FROM_GALLERY:
         handlerRunnable = () -> handleChooseMultiImageResult(resultCode, data);
         break;
+      case REQUEST_CODE_CHOOSE_MULTI_VIDEO_FROM_GALLERY:
+        handlerRunnable = () -> handleChooseMultiVideoResult(resultCode, data);
+        break;
       case REQUEST_CODE_TAKE_IMAGE_WITH_CAMERA:
         handlerRunnable = () -> handleCaptureImageResult(resultCode);
         break;
@@ -696,6 +733,25 @@ private void handleChooseImageResult(int resultCode, Intent data) {
     finishWithSuccess(null);
   }
 
+  private void handleChooseMultiVideoResult(int resultCode, Intent intent) {
+    if (resultCode == Activity.RESULT_OK && intent != null) {
+      ArrayList<MediaPath> paths = getPathsFromIntent(intent, false);
+      // If there's no valid Uri, return an error
+      if (paths == null) {
+        finishWithError(
+            "missing_valid_video_uri", "Cannot find at least one of the selected videos.");
+        return;
+      }
+
+      finishWithListSuccess(
+          paths.stream().map(p -> p.getPath()).collect(Collectors.toCollection(ArrayList::new)));
+      return;
+    }
+
+    // User cancelled choosing a picture.
+    finishWithSuccess(null);
+  }
+
   public class MediaPath {
     public MediaPath(@NonNull String path, @Nullable String mimeType) {
       this.path = path;

packages/image_picker/image_picker_android/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerPlugin.java

@@ -339,7 +339,9 @@ public void pickVideos(
 
     setCameraDevice(delegate, source);
     if (generalOptions.getAllowMultiple()) {
-      result.error(new RuntimeException("Multi-video selection is not implemented"));
+      int limit = ImagePickerUtils.getLimitFromOption(generalOptions);
+      delegate.chooseMultiVideoFromGallery(
+          options, generalOptions.getUsePhotoPicker(), limit, result);
     } else {
       switch (source.getType()) {
         case GALLERY:

packages/image_picker/image_picker_android/example/pubspec.yaml

@@ -33,3 +33,7 @@ dev_dependencies:
 
 flutter:
   uses-material-design: true
+# FOR TESTING AND INITIAL REVIEW ONLY. DO NOT MERGE.
+# See https://github.com/flutter/flutter/blob/master/docs/ecosystem/contributing/README.md#changing-federated-plugins
+dependency_overrides:
+  image_picker_platform_interface: {path: ../../../../packages/image_picker/image_picker_platform_interface}

packages/image_picker/image_picker_android/lib/image_picker_android.dart

@@ -135,6 +135,21 @@ class ImagePickerAndroid extends ImagePickerPlatform {
     return paths.isEmpty ? null : paths.first;
   }
 
+  Future<List<String>> _getMultiVideoPath({
+    Duration? maxDuration,
+    int? limit,
+  }) {
+    return _hostApi.pickVideos(
+      SourceSpecification(type: SourceType.gallery),
+      VideoSelectionOptions(maxDurationSeconds: maxDuration?.inSeconds),
+      GeneralOptions(
+        allowMultiple: true,
+        usePhotoPicker: useAndroidPhotoPicker,
+        limit: limit,
+      ),
+    );
+  }
+
   @override
   Future<PickedFile?> pickVideo({
     required ImageSource source,
@@ -261,6 +276,22 @@ class ImagePickerAndroid extends ImagePickerPlatform {
     return path != null ? XFile(path) : null;
   }
 
+  @override
+  Future<List<XFile>> getMultiVideoWithOptions({
+    MultiVideoPickerOptions options = const MultiVideoPickerOptions(),
+  }) async {
+    final List<String> paths = await _getMultiVideoPath(
+      maxDuration: options.maxDuration,
+      limit: options.limit,
+    );
+
+    if (paths.isEmpty) {
+      return <XFile>[];
+    }
+
+    return paths.map((String path) => XFile(path)).toList();
+  }
+
   MediaSelectionOptions _mediaOptionsToMediaSelectionOptions(
       MediaOptions mediaOptions) {
     final ImageSelectionOptions imageSelectionOptions =

packages/image_picker/image_picker_android/pubspec.yaml

@@ -2,7 +2,7 @@ name: image_picker_android
 description: Android implementation of the image_picker plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/image_picker/image_picker_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+image_picker%22
-version: 0.8.12+24
+version: 0.8.14
 
 environment:
   sdk: ^3.6.0
@@ -34,3 +34,7 @@ topics:
   - image-picker
   - files
   - file-selection
+# FOR TESTING AND INITIAL REVIEW ONLY. DO NOT MERGE.
+# See https://github.com/flutter/flutter/blob/master/docs/ecosystem/contributing/README.md#changing-federated-plugins
+dependency_overrides:
+  image_picker_platform_interface: {path: ../../../packages/image_picker/image_picker_platform_interface}

packages/image_picker/image_picker_android/test/image_picker_android_test.dart

@@ -602,6 +602,33 @@ void main() {
     });
   });
 
+  group('#getMultiVideoWithOptions', () {
+    test('calls the method correctly', () async {
+      const List<String> fakePaths = <String>['/foo.mp4', 'bar.mp4'];
+      api.returnValue = fakePaths;
+      final List<XFile> result =
+          await picker.getMultiVideoWithOptions(options: const MultiVideoPickerOptions());
+
+      expect(result.length, 2);
+      expect(result[0].path, fakePaths[0]);
+      expect(api.lastCall, _LastPickType.video);
+      expect(api.passedAllowMultiple, true);
+    });
+
+    test('passes the arguments correctly', () async {
+      api.returnValue = <String>[];
+      await picker.getMultiVideoWithOptions(
+          options: const MultiVideoPickerOptions(
+        maxDuration: Duration(seconds: 10),
+        limit: 5,
+      ));
+
+      expect(api.passedSource?.type, SourceType.gallery);
+      expect(api.passedVideoOptions?.maxDurationSeconds, 10);
+      expect(api.limit, 5);
+    });
+  });
+
   group('#getLostData', () {
     test('getLostData get success response', () async {
       api.returnValue = CacheRetrievalResult(

packages/image_picker/image_picker_for_web/CHANGELOG.md

@@ -1,5 +1,10 @@
-## NEXT
+## 3.2.0
 
+* feat: Add pickMultiVideo.
+
+## 3.1.0
+
+* feat: Add pickMultiVideo.
 * Updates minimum supported SDK version to Flutter 3.27/Dart 3.6.
 
 ## 3.0.6

packages/image_picker/image_picker_for_web/example/pubspec.yaml

@@ -18,3 +18,7 @@ dev_dependencies:
     sdk: flutter
   integration_test:
     sdk: flutter
+# FOR TESTING AND INITIAL REVIEW ONLY. DO NOT MERGE.
+# See https://github.com/flutter/flutter/blob/master/docs/ecosystem/contributing/README.md#changing-federated-plugins
+dependency_overrides:
+  image_picker_platform_interface: {path: ../../../../packages/image_picker/image_picker_platform_interface}