[image_picker]Add argument maxDuration to video record

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

@@ -237,6 +237,12 @@ private void launchTakeVideoWithCameraIntent() {
     intent.putExtra(MediaStore.EXTRA_OUTPUT, videoUri);
     grantUriPermissions(intent, videoUri);
 
+    Double maxDuration = methodCall.argument("maxDuration");
+    if(maxDuration != null) {
+      int maxDurationToInt = maxDuration.intValue();
+      intent.putExtra(MediaStore.EXTRA_DURATION_LIMIT, maxDurationToInt);
+    }
+
     activity.startActivityForResult(intent, REQUEST_CODE_TAKE_VIDEO_WITH_CAMERA);
   }
 
@@ -454,15 +460,15 @@ private void handleImageResult(String path) {
       String finalImagePath = imageResizer.resizeImageIfNeeded(path, maxWidth, maxHeight);
       finishWithSuccess(finalImagePath);
     } else {
-      throw new IllegalStateException("Received image from picker that was not requested");
+      throw new IllegalStateException("Received images from picker that were not requested");
     }
   }
 
   private void handleVideoResult(String path) {
     if (pendingResult != null) {
       finishWithSuccess(path);
     } else {
-      throw new IllegalStateException("Received video from picker that was not requested");
+      throw new IllegalStateException("Received images from picker that were not requested");
     }
   }
 

packages/image_picker/ios/Classes/ImagePickerPlugin.m

@@ -80,9 +80,16 @@ - (void)handleMethodCall:(FlutterMethodCall *)call result:(FlutterResult)result
       (NSString *)kUTTypeMPEG4
     ];
     _imagePickerController.videoQuality = UIImagePickerControllerQualityTypeHigh;
+
 
     _result = result;
     _arguments = call.arguments;
+
+    NSNumber *maxDuration = [_arguments objectForKey:@"maxDuration"];
+    if (maxDuration != (id)[NSNull null]) {
+        double maxDurationToDouble = [maxDuration doubleValue];
+        [_imagePickerController setVideoMaximumDuration:maxDurationToDouble];
+    }
 
     int imageSource = [[_arguments objectForKey:@"source"] intValue];
 

packages/image_picker/lib/image_picker.dart

@@ -56,15 +56,26 @@ class ImagePicker {
     return path == null ? null : new File(path);
   }
 
+  /// Returns a [File] object pointing to the video that was picked.
+  ///
+  /// The [source] argument controls where the video comes from. This can
+  /// be either [ImageSource.camera] or [ImageSource.gallery].
+  ///
+  /// [maxDuration] is the maximum amount of Seconds (eg. 30.0) that is available to be recorded
+  /// after which the video record will immediately finish and the [File] will be returned
   static Future<File> pickVideo({
     @required ImageSource source,
+    double maxDuration
   }) async {
     assert(source != null);
 
+    double durationSeconds = (maxDuration==null) ? null : maxDuration.inSeconds.toDouble();
+
     final String path = await _channel.invokeMethod(
       'pickVideo',
       <String, dynamic>{
         'source': source.index,
+        'maxDuration':durationSeconds
       },
     );
     return path == null ? null : new File(path);