使用VideoView

Question

時，遇到了java.io.FileNotFoundException我有以下代碼：

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

「testnatureclip」 位於原文件夾：

出於某種原因後，我建立該項目文件變成紅色。

這裏是我的錯誤： 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應該以H.264格式編碼的，但我不知道如果在線編碼服務我用工作。

此外，如果重要的話，videoview的尺寸與文件尺寸不一樣。

什麼問題？文件路徑不正確，或者我在初始化videoview時缺少一些元素？

更新一個：

使用User8的解決方案，我得到了以下錯誤：

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

我發現2個解決方案：

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

試試這個，指定一個絕對軟件包名稱路徑，並使用烏里：

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

而且，爲什麼不直接使用getPackageResourcePath()來訪問資源？

然後，你通常無法訪問他們的方式，你應該使用只他們resourceID，這裏是正是話題的討論：Access resource files in Android。