添加长按2倍速播放

lib/video.dart

@@ -332,7 +332,6 @@ class GZVideoPlayerState extends State<GZVideoPlayer>
       // debugPrint("error: " + controller.value.errorDescription);
 
       if (_controller.value.isPlaying) {
-        _controller.setPlaybackSpeed(_speedItem.speed);
         setState(() {
           if (oDuration.inHours == 0) {
             var strPosition = oPosition.toString().split('.')[0];
@@ -370,6 +369,9 @@ class GZVideoPlayerState extends State<GZVideoPlayer>
       _controller.play();
       _isEnded = false;
     }
+    Future.delayed(const Duration(seconds: 1), () {
+      _controller.setPlaybackSpeed(_speedItem.speed);
+    });
   }
 
   void _initPlayer() {
@@ -426,9 +428,9 @@ class GZVideoPlayerState extends State<GZVideoPlayer>
     } else {
       if (Platform.isIOS) {
         GzOrientation.forceOrientation(DeviceOrientation.landscapeRight);
-      }
-      else {
-        SystemChrome.setPreferredOrientations([DeviceOrientation.landscapeLeft]);
+      } else {
+        SystemChrome.setPreferredOrientations(
+            [DeviceOrientation.landscapeLeft]);
       }
     }
   }
@@ -872,6 +874,25 @@ class GZVideoPlayerState extends State<GZVideoPlayer>
         },
         onVerticalDragEnd: (DragEndDetails details) {},
 
+        /// 长按 2 倍速播放
+        onLongPress: () {
+          if (!_controller.value.isInitialized) return;
+          VideoSpeedItem item = VideoSpeedItem(speed: 2.0, title: '2X');
+          _controller.setPlaybackSpeed(item.speed);
+          widget.onSpeedChange?.call(item);
+          _speedTitle = item.title;
+          setState(() {});
+        },
+
+        /// 取消长按恢复之前选择的速度播放
+        onLongPressUp: () {
+          if (!_controller.value.isInitialized) return;
+          _controller.setPlaybackSpeed(_speedItem.speed);
+          widget.onSpeedChange?.call(_speedItem);
+          _speedTitle = _speedItem.title;
+          setState(() {});
+        },
+
         ///视频播放器
         child: ClipRect(
           child: Container(

lib/video_speed.dart

@@ -4,7 +4,7 @@ class VideoSpeedItem {
   final double speed;
   final String title;
 
-  VideoSpeedItem({this.speed = 1.0, this.title = '1.0X'});
+  VideoSpeedItem({this.speed = 1.0, this.title = '1X'});
 }
 
 class VideoSpeedItemStyle {