flutter 全屏播放视频
时间: 2024-06-16 21:07:52 浏览: 219
Flutter是一种跨平台的移动应用开框架,可以用于开发iOS和Android应用。要实现全屏播放视频,可以使用Flutter提供的video_player插件。
首先,你需要在pubspec.yaml文件中添加video_player插件的依赖。然后,在你的Flutter代码中导入video_player包,并创建一个VideoPlayerController对象来控制视频播放。接下来,你可以使用VideoPlayer组件视频显示在屏幕上。
以下是一个简单的示例代码,演示如何实现全屏播放视频:
```dart
import 'package:flutter/material.dart';
import 'package:video_player/video_player.dart';
class FullScreenVideoPlayer extends StatefulWidget {
final String videoUrl;
FullScreenVideoPlayer({required this.videoUrl});
@override
_FullScreenVideoPlayerState createState() => _FullScreenVideoPlayerState();
}
class _FullScreenVideoPlayerState extends State<FullScreenVideoPlayer> {
late VideoPlayerController _controller;
late Future<void> _initializeVideoPlayerFuture;
@override
void initState() {
_controller = VideoPlayerController.network(widget.videoUrl);
_initializeVideoPlayerFuture = _controller.initialize();
super.initState();
}
@override
void dispose() {
_controller.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: FutureBuilder(
future: _initializeVideoPlayerFuture,
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.done) {
return AspectRatio(
aspectRatio: _controller.value.aspectRatio,
child: VideoPlayer(_controller),
);
} else {
return Center(child: CircularProgressIndicator());
}
},
),
floatingActionButton: FloatingActionButton(
onPressed: () {
setState(() {
if (_controller.value.isPlaying) {
_controller.pause();
} else {
_controller.play();
}
});
},
child: Icon(
_controller.value.isPlaying ? Icons.pause : Icons.play_arrow,
),
),
);
}
}
void main() {
runApp(MaterialApp(
home: FullScreenVideoPlayer(videoUrl: 'https://example.com/video.mp4'),
));
}
```
在上面的示例中,FullScreenVideoPlayer是一个自定义的Widget,它接收一个videoUrl参数,用于指定要播放的视频的URL。在build方法中,我们使用VideoPlayer组件来显示视频,并使用floatingActionButton来控制播放和暂停。
阅读全文