Flutter:基于video_player实现视频相关手势控制、全屏播放
import 'package:flutter/material.dart';
import 'package:video_player/video_player.dart';
class VideoPlayerScreen extends StatefulWidget {
final VideoPlayerController controller;
VideoPlayerScreen(this.controller);
@override
_VideoPlayerScreenState createState() => _VideoPlayerScreenState();
}
class _VideoPlayerScreenState extends State<VideoPlayerScreen> {
bool _isFullScreen = false;
VideoPlayerController get _controller => widget.controller;
@override
void initState() {
super.initState();
_controller.initialize().then((_) => setState(() {}));
_controller.setLooping(true);
_controller.setVolume(1.0);
_controller.play();
}
@override
void dispose() {
_controller.dispose();
super.dispose();
}
// 此处省略了全屏状态下的视频播放器构建代码
@override
Widget build(BuildContext context) {
return Scaffold(
body: Stack(
children: <Widget>[
Center(
child: _controller.value.isInitialized
? AspectRatio(
aspectRatio: _controller.value.aspectRatio,
child: VideoPlayer(_controller),
)
: Container(),
),
// 此处省略了手势控制代码
],
),
floatingActionButton: FloatingActionButton(
onPressed: _toggleFullScreen,
child: Icon(_isFullScreen ? Icons.fullscreen_exit : Icons.fullscreen),
),
);
}
void _toggleFullScreen() {
setState(() {
_isFullScreen = !_isFullScreen;
});
}
}
这个代码实例展示了如何在Flutter应用中使用video_player
插件来构建一个视频播放器,并实现了基本的全屏功能。代码中包含了初始化视频播放器控制器、处理视频播放的生命周期、实现全屏切换的功能。需要注意的是,全屏状态下的视频播放器构建代码和手势控制代码被省略了,具体实现依赖于应用的具体需求。
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