我的应用程序将下载视频,在第一个屏幕中将可以下载视频,我正在使用dio并使用path_provider获取应用程序文件夹,在第二个屏幕中,我要显示并播放下载的视频。
下载正常,已存储在正确的路径中,但是我无法检索到video_player的相同路径,得到的是“找不到文件”。
文件下载路径:/ data / user / 0 / APP_NAME / app_flutter / ATW-全世界。mp4
错误显示的路径:flutter_assets // data / user / 0 / APP_NAME / app_flutter / ATW-环游世界。mp4
看起来好像不一样。
Dio dio = Dio();
try {
var dir = await getApplicationDocumentsDirectory();
for (int i = 0; i < urls.length; i++){
path = "${dir.path}/${tricks[i]}.mp4";
await dio.download(urls[i], path, onReceiveProgress: (rec, total){
setState(() {
progress = ((rec / total) * 100).toStringAsFixed(0) + "%";
});
});
print(path);
}
} catch (e){
print(e);
}
===============
import 'package:flutter/material.dart';
import 'package:path_provider/path_provider.dart';
import 'package:video_player/video_player.dart';
class VideoScreen extends StatefulWidget {
String trickName;
VideoScreen(this.trickName);
@override
_VideoScreenState createState() => _VideoScreenState(trickName);
}
class _VideoScreenState extends State<VideoScreen> {
String trickName;
VideoPlayerController _controller;
dynamic videoPath;
_VideoScreenState(this.trickName);
@override
void initState() {
// TODO: implement initState
super.initState();
_getVideoPath();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Trick"),
centerTitle: true,
),
body: FutureBuilder(
future: _getVideoPath(),
builder: (context, snapshot){
if(snapshot.connectionState == ConnectionState.done){
return Center(
child: _controller.value.initialized ? AspectRatio(
aspectRatio: _controller.value.aspectRatio,
child: VideoPlayer(_controller),
)
: Center(
child: CircularProgressIndicator(),
),
);
}
}
),
);
}
@override
void dispose() {
// TODO: implement dispose
super.dispose();
_controller.dispose();
}
Future<void> _getVideoPath() async{
try{
var dir = await getApplicationDocumentsDirectory();
videoPath = "${dir.path}/$trickName.mp4";
print(videoPath);
_controller = VideoPlayerController.asset(videoPath)..initialize()
.then((_){
setState(() {
});
});
}catch (e){
print(e);
}
}
}
I / ExoPlayerImpl(20059):初始化5dd991d [ExoPlayerLib / 2.9.6] [m253,LG-K430,LGE,23] I / ExoPlayerImpl(20059):初始化8355563 [ExoPlayerLib / 2.9.6] [m253,LG-K430,LGE,23] E / ExoPlayerImplInternal(20059):源错误。 E / ExoPlayerImplInternal(20059):com.google.android.exoplayer2.upstream.AssetDataSource $ AssetDataSourceException:java.io.FileNotFoundException:flutter_assets // data / user / 0 / APP_NAME / app_flutter / ATW-世界各地。mp4 E / ExoPlayerImplInternal(20059):位于com.google.android.exoplayer2.upstream.AssetDataSource.open(AssetDataSource.java:98) E / ExoPlayerImplInternal(20059):位于com.google.android.exoplayer2.upstream.DefaultDataSource.open(DefaultDataSource.java:250) E / ExoPlayerImplInternal(20059):位于com.google.android.exoplayer2.upstream.StatsDataSource.open(StatsDataSource.java:83) E / ExoPlayerImplInternal(20059):位于com.google.android.exoplayer2.source.ExtractorMediaPeriod $ ExtractingLoadable.load(ExtractorMediaPeriod.java:885) E / ExoPlayerImplInternal(20059):位于com.google.android.exoplayer2.upstream.Loader $ LoadTask.run(Loader.java:381) E / ExoPlayerImplInternal(20059):位于java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) E / ExoPlayerImplInternal(20059):位于java.util.concurrent.ThreadPoolExecutor $ Worker.run(ThreadPoolExecutor.java:588) E / ExoPlayerImplInternal(20059):位于java.lang.Thread.run(Thread.java:818) E / ExoPlayerImplInternal(20059):由以下原因引起:java.io.FileNotFoundException:flutter_assets // data / user / 0 / APP_NAME / app_flutter / ATW-遍布世界。mp4 E / ExoPlayerImplInternal(20059):位于android.content.res.AssetManager.openAsset(本机方法) E / ExoPlayerImplInternal(20059):位于android.content.res.AssetManager.open(AssetManager.java:313) E / ExoPlayerImplInternal(20059):位于com.google.android.exoplayer2.upstream.AssetDataSource.open(AssetDataSource.java:79) E / ExoPlayerImplInternal(20059):...还有7个
答案 0 :(得分:0)
video_player具有文件功能:VideoPlayerController.file(File)
我的Android Studio没有显示该功能,因此我认为该功能尚未实现。
现在,我可以从应用程序文件夹中加载视频了。