2

有问题的代码：

public class VideoPlayer extends Activity {
    Bundle bundle;
    VideoView vv;
    String type;
    Uri path;
    Context mContext;
    ImageView countImage;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        //Remove title bar
        this.requestWindowFeature(Window.FEATURE_NO_TITLE);

        //Remove notification bar
        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

        super.onCreate(savedInstanceState);
        setContentView(R.layout.videoplayer);
        mContext = getBaseContext();
        vv = (VideoView) findViewById(R.id.videoView1);
        countImage = (ImageView) findViewById(R.id.countdownNumber);
        countImage.setVisibility(View.GONE);
        getWindow().setFormat(PixelFormat.TRANSLUCENT); 

        // get details from the Bundle's extras.
        bundle = getIntent().getExtras();
        String playMode = bundle.getString("mode");

        if (playMode.compareTo("single") == 0) { playSingle(); }
        else if (playMode.compareTo("multi") == 0) { playMulti(); }
        else { finish(); }
    }


    // --- PLAY SINGLE ---
    public void playSingle() {
        // retrieve name of video to play from the Bundle
        String videoname = bundle.getString("videoname");
        Uri path = Uri.parse("android.resource://com.sexinfo101.positions.guide/raw/video_" + videoname);
        boolean result = false;
        int test = mContext.getResources().getIdentifier("video_" + videoname, "raw", mContext.getPackageName());
        if (test != 0)  { result = true; }        
        if (!result) { finish(); }

        vv.setMediaController(new MediaController(this));
        vv.setVideoURI(path);
        vv.requestFocus();
        //vv.start();

        vv.setOnPreparedListener(new OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mp) {
                mp.setLooping(true);
                vv.start();
            }
        });

        vv.setOnCompletionListener(new OnCompletionListener() {
            @Override
            public void onCompletion(MediaPlayer mp) {
                if (!mp.isPlaying()) {
                    mp.release();
                    finish(); // we're done here
                }
            }
        });
    }
}

日志输出：

08-06 15:22:30.770: ERROR/MediaPlayerService(116): Returning PV_PLAYER*************************
08-06 15:22:30.790: ERROR/PlayerDriver(116): Creating Non-Tunnel mode playback - uncompressed MIO
08-06 15:22:30.800: ERROR/OMX-VDEC-720P(116):  In OMX vdec Constuctor
08-06 15:22:30.800: ERROR/OMX-VDEC-720P(116):  Name of the device is Unknown
08-06 15:22:30.800: ERROR/OMX-VDEC-720P(116):  omx_vdec::component_init(): Start of New Playback
08-06 15:22:30.800: ERROR/OMX-VDEC-720P(116):  omx_vdec::component_init(): Open returned fd 30
08-06 15:22:31.300: ERROR/OMX-VDEC-720P(116):  Reject Second instance of Decoder
08-06 15:22:31.300: ERROR/OMX-VDEC-720P(116):  In OMX vdec Destructor
08-06 15:22:31.300: ERROR/OMX-VDEC-720P(116):  Waiting on OMX Msg Thread exit
08-06 15:22:31.300: ERROR/OMX-VDEC-720P(116):  Waiting on OMX Async Thread exit
08-06 15:22:31.300: ERROR/OMX-VDEC-720P(116):  Exit OMX vdec Destructor
08-06 15:22:31.310: ERROR/PlayerDriver(116): Command PLAYER_PREPARE completed with an error or info PVMFErrResource
08-06 15:22:31.320: ERROR/MediaPlayer(1364): error (1, -17)
08-06 15:22:31.330: ERROR/MediaPlayer(1364): Error (1,-17)

随后是更多的 logcat 输出：

08-06 15:24:29.400: ERROR/AndroidRuntime(1364): FATAL EXCEPTION: main
08-06 15:24:29.400: ERROR/AndroidRuntime(1364): java.lang.IllegalStateException
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.media.MediaPlayer._reset(Native Method)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.media.MediaPlayer.reset(MediaPlayer.java:1061)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.widget.VideoView.release(VideoView.java:510)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.widget.VideoView.access$2100(VideoView.java:50)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.widget.VideoView$6.surfaceDestroyed(VideoView.java:500)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.view.SurfaceView.reportSurfaceDestroyed(SurfaceView.java:568)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.view.SurfaceView.updateWindow(SurfaceView.java:472)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.view.SurfaceView.onWindowVisibilityChanged(SurfaceView.java:206)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.view.View.dispatchDetachedFromWindow(View.java:6029)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1156)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1156)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1156)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.view.ViewRoot.dispatchDetachedFromWindow(ViewRoot.java:1630)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.view.ViewRoot.doDie(ViewRoot.java:2720)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.view.ViewRoot.die(ViewRoot.java:2690)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.view.WindowManagerImpl.removeViewImmediate(WindowManagerImpl.java:218)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.view.Window$LocalWindowManager.removeViewImmediate(Window.java:436)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:3684)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.app.ActivityThread.access$2900(ActivityThread.java:125)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.os.Handler.dispatchMessage(Handler.java:99)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.os.Looper.loop(Looper.java:123)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at android.app.ActivityThread.main(ActivityThread.java:4627)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at java.lang.reflect.Method.invokeNative(Native Method)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at java.lang.reflect.Method.invoke(Method.java:521)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
08-06 15:24:29.400: ERROR/AndroidRuntime(1364):     at dalvik.system.NativeStart.main(Native Method)

我的怀疑是 logcat 行“08-06 17:31:29.960: ERROR/OMX-VDEC-720P(116): Reject Second instance of Decoder”指向准备失败的原因，但我不知道在哪里这第二个实例可能来自。它确实先于解码器的实际关闭，所以如果不是原因，它似乎至少暗示了一个。

有什么想法吗？在调试器中，我可以看到找到了一个有效的资源，并且在我从上面的代码中删除多人功能中的 Handler 和 Runnables 的 Timers 之前，这段代码可以正常工作。

4

1 回答 1

3

好的，这原来是固件/操作系统/设备问题。这个问题可能是由我最近开始使用的 SuperBoot 引导 ROM 引起的，以便在我的华为 IDEOS X5 U8800 手机上获得 root 访问权限。根据开发人员的说法，这个引导 ROM 是为固件版本 136 开发的，我使用的是 135。升级后一切似乎又可以顺利运行了，包括 WiFi 访问和一切:)

讨论这个问题的论坛帖子的链接可以在这里找到：http ://android.modaco.com/topic/340374-25-may-r1-superboot-and-then-some-for-the-huawei-u8800- ideos-x5/

于 2011-08-07T09:57:11.813 回答