使用VideoView

Question

时，遇到了java.io.FileNotFoundException我有以下代码：

VideoView videoView = (VideoView)findViewById(R.id.instructionsvideo); 
    assert videoView != null; 
    videoView.setVideoPath("android.resource://" + getPackageName() + R.raw.testnatureclip); 
    videoView.start(); 

“testnatureclip” 位于原文件夹：

出于某种原因后，我建立该项目文件变成红色。

这里是我的错误： com.roymunson.vroy.copypastakeyboard W/MediaPlayer: Couldn't open file on client side; trying server side: java.io.FileNotFoundException: No package found for authority: android.resource://com.roymunson.vroy.copypastakeyboard2131165184

的MP4应该以H.264格式编码的，但我不知道如果在线编码服务我用工作。

此外，如果重要的话，videoview的尺寸与文件尺寸不一样。

什么问题？文件路径不正确，或者我在初始化videoview时缺少一些元素？

更新一个：

使用User8的解决方案，我得到了以下错误：

roymunson.vroy.copypastakeyboard W/MediaPlayer: Couldn't open file on client side; trying server side: java.io.FileNotFoundException: No content provider: /2131165184 
10-01 17:36:20.912 28156-28156/com.roymunson.vroy.copypastakeyboard W/VideoView: Unable to open content: /2131165184 
                       java.io.IOException: setDataSource failed. 
                        at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1100) 
                        at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1074) 
                        at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1028) 
                        at android.widget.VideoView.openVideo(VideoView.java:346) 
                        at android.widget.VideoView.-wrap0(VideoView.java) 
                        at android.widget.VideoView$7.surfaceCreated(VideoView.java:623) 
                        at android.view.SurfaceView.updateWindow(SurfaceView.java:582) 
                        at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:177) 
                        at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:944) 
                        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2067) 
                        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1119) 
                        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6060) 
                        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858) 
                        at android.view.Choreographer.doCallbacks(Choreographer.java:670) 
                        at android.view.Choreographer.doFrame(Choreographer.java:606) 
                        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844) 
                        at android.os.Handler.handleCallback(Handler.java:746) 
                        at android.os.Handler.dispatchMessage(Handler.java:95) 
                        at android.os.Looper.loop(Looper.java:148) 
                        at android.app.ActivityThread.main(ActivityThread.java:5443) 
                        at java.lang.reflect.Method.invoke(Native Method) 
                        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728) 
                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 

Answer 1

我发现2个解决方案：

String uriPath = "android.resource://" + getPackageName() + "/raw/testnatureclip"; 
Uri uri = Uri.parse(uriPath); 
videoView.setVideoURI(uri); 

或

videoView.setVideoURI(Uri.parse("android.resource://ABSOLUTE_PACKAGE_NAME/" + R.raw.testnatureclip)); 

Answer 2

试试这个，指定一个绝对软件包名称路径，并使用乌里：

videoView.setVideoURI(Uri.parse("android.resource://com.roymunson.vroy.copypastakeyboard/" 
            + R.raw.testnatureclip)); 

而且，为什么不直接使用getPackageResourcePath()来访问资源？

然后，你通常无法访问他们的方式，你应该使用只他们resourceID，这里是正是话题的讨论：Access resource files in Android。