Androidビデオのクラッシュ

Question

10秒間画面をスライドさせようとしましたが、動画の再生中に、「MyActivity（アプリケーションMyActivity内）」が応答しないというエラーが発生しました。そのエラーはAndroid 3.2.1（Android 2.3.3ではすべてOK）に表示されました。

AppWindowToken{4171c010 token=ActivityRecord{40a4b008 com.MyActivity/.Home}}. 5018.0ms since event, 5004.9ms since wait started 
01-10 14:08:31.280 I/WindowManager( 142): Input event dispatching timed out sending to application AppWindowToken{4171c010 token=ActivityRecord{40a4b008 com.MyActivity/.Home}} 
01-10 14:08:31.310 I/Process ( 142): Sending signal. PID: 4027 SIG: 3 
01-10 14:08:31.310 I/dalvikvm(4027): threadid=4: reacting to signal 3 
01-10 14:08:31.320 I/dalvikvm(4027): Wrote stack traces to '/data/anr/traces.txt' 
01-10 14:08:31.320 I/Process ( 142): Sending signal. PID: 142 SIG: 3 
01-10 14:08:31.320 I/dalvikvm( 142): threadid=4: reacting to signal 3 
01-10 14:08:31.350 I/dalvikvm( 142): Wrote stack traces to '/data/anr/traces.txt' 
01-10 14:08:31.350 I/Process ( 142): Sending signal. PID: 224 SIG: 3 
01-10 14:08:31.350 I/dalvikvm( 224): threadid=4: reacting to signal 3 
01-10 14:08:31.360 I/dalvikvm( 224): Wrote stack traces to '/data/anr/traces.txt' 
01-10 14:08:31.360 I/Process ( 142): Sending signal. PID: 200 SIG: 3 
01-10 14:08:31.360 I/dalvikvm( 200): threadid=4: reacting to signal 3 
01-10 14:08:31.370 I/dalvikvm( 200): Wrote stack traces to '/data/anr/traces.txt' 
01-10 14:08:31.550 D/dalvikvm( 142): GC_CONCURRENT freed 2091K, 40% free 17467K/28679K, paused 5ms+8ms 
01-10 14:08:31.690 D/dalvikvm( 142): GC_EXPLICIT freed 303K, 40% free 17465K/28679K, paused 3ms+5ms 
01-10 14:08:32.280 E/ActivityManager( 142): ANR in com.MyActivity (com.MyActivity/.Home) 
01-10 14:08:32.280 E/ActivityManager( 142): Reason: keyDispatchingTimedOut 
01-10 14:08:32.280 E/ActivityManager( 142): Load: 0.41/0.3/0.18 
01-10 14:08:32.280 E/ActivityManager( 142): CPU usage from 26289ms to 0ms ago with 99% awake: 
01-10 14:08:32.280 E/ActivityManager( 142): 22% 89/mediaserver: 17% user + 4.6% kernel/faults: 2598 minor 
01-10 14:08:32.280 E/ActivityManager( 142): 14% 4027/com.MyActivity: 11% user + 2.6% kernel/faults: 1460 minor 
01-10 14:08:32.280 E/ActivityManager( 142): 8.1% 195/dhd_dpc: 0% user + 8.1% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 7.4% 142/system_server: 2.2% user + 5.1% kernel/faults: 96 minor 
01-10 14:08:32.280 E/ActivityManager( 142): 2% 86/surfaceflinger: 0.7% user + 1.3% kernel/faults: 2 minor 
01-10 14:08:32.280 E/ActivityManager( 142): 1.8% 4000/kworker/u:1: 0% user + 1.8% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 1.7% 2307/kworker/u:0: 0% user + 1.7% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 1.4% 1713/kworker/u:3: 0% user + 1.4% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 0.5% 62/kinteractiveup: 0% user + 0.5% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 0.5% 3541/kworker/u:2: 0% user + 0.5% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 0.4% 224/com.android.phone: 0% user + 0.4% kernel/faults: 1 minor 
01-10 14:08:32.280 E/ActivityManager( 142): 0.3% 88/drmserver: 0% user + 0.3% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 0.3% 200/com.android.systemui: 0.2% user + 0% kernel/faults: 32 minor 
01-10 14:08:32.280 E/ActivityManager( 142): 0% 222/com.android.launcher: 0% user + 0% kernel/faults: 197 minor 
01-10 14:08:32.280 E/ActivityManager( 142): 0.2% 2954/kworker/0:0: 0% user + 0.2% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 0.2% 3584/kworker/1:1: 0.2% user + 0% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 0% 322/android.process.media: 0% user + 0% kernel/faults: 69 minor 
01-10 14:08:32.280 E/ActivityManager( 142): 0.1% 128/irq/182-3d: 0% user + 0.1% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 0.1% 194/dhd_watchdog: 0% user + 0.1% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 0% 1583/avp_svc_thread: 0% user + 0% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 0% 209/wpa_supplicant: 0% user + 0% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 0% 2556/ksoftirqd/1: 0% user + 0% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 30% TOTAL: 16% user + 11% kernel + 0.4% iowait + 1.7% softirq 
01-10 14:08:32.280 E/ActivityManager( 142): CPU usage from 417ms to 950ms later: 
01-10 14:08:32.280 E/ActivityManager( 142): 20% 89/mediaserver: 20% user + 0% kernel 
01-10 14:08:32.280 E/ActivityManager( 142):  7.2% 4075/TimedEventQueue: 7.2% user + 0% kernel 
01-10 14:08:32.280 E/ActivityManager( 142):  7.2% 4081/AudioTrackThrea: 7.2% user + 0% kernel 
01-10 14:08:32.280 E/ActivityManager( 142):  3.6% 138/Playback Thread: 3.6% user + 0% kernel 
01-10 14:08:32.280 E/ActivityManager( 142):  1.8% 4071/TimedEventQueue: 1.8% user + 0% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 10% 142/system_server: 0% user + 10% kernel/faults: 1 minor 
01-10 14:08:32.280 E/ActivityManager( 142):  7.2% 173/InputDispatcher: 0% user + 7.2% kernel 
01-10 14:08:32.280 E/ActivityManager( 142):  3.6% 174/InputReader: 1.8% user + 1.8% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 1.1% 86/surfaceflinger: 1.1% user + 0% kernel 
01-10 14:08:32.280 E/ActivityManager( 142):  1.1% 118/SurfaceFlinger: 1.1% user + 0% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 1.2% 195/dhd_dpc: 0% user + 1.2% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 1.8% 1713/kworker/u:3: 0% user + 1.8% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 1.8% 4027/com.MyActivity: 0% user + 1.8% kernel/faults: 5 minor 
01-10 14:08:32.280 E/ActivityManager( 142):  1.8% 4027/com.MyActivity: 1.8% user + 0% kernel 
01-10 14:08:32.280 E/ActivityManager( 142): 23% TOTAL: 12% user + 10% kernel 
01-10 14:08:32.290 W/webview (4027): Got ACTION_DOWN but still waiting on stale event. Catching up. 
01-10 14:08:32.360 D/dalvikvm(4027): GC_CONCURRENT freed 412K, 7% free 7147K/7623K, paused 2ms+8ms 
01-10 14:08:32.590 W/webview (4027): Stale touch event ACTION_DOWN received from webcore; ignoring 
01-10 14:08:32.590 W/webview (4027): Stale touch event ACTION_POINTER_DOWN(0) received from webcore; ignoring 
01-10 14:08:32.590 W/webview (4027): Stale touch event ACTION_POINTER_DOWN(0) received from webcore; ignoring 
01-10 14:08:32.590 W/webview (4027): Stale touch event ACTION_MOVE received from webcore; ignoring 
01-10 14:08:32.590 W/webview (4027): Stale touch event ACTION_POINTER_UP(0) received from webcore; ignoring 
01-10 14:08:32.590 W/webview (4027): Stale touch event ACTION_POINTER_UP(0) received from webcore; ignoring 
01-10 14:08:32.590 W/webview (4027): Stale touch event ACTION_POINTER_DOWN(0) received from webcore; ignoring 
01-10 14:08:32.590 W/webview (4027): Stale touch event ACTION_MOVE received from webcore; ignoring 
01-10 14:08:32.590 W/webview (4027): Stale touch event ACTION_POINTER_DOWN(0) received from webcore; ignoring 
01-10 14:08:32.590 W/webview (4027): Stale touch event ACTION_MOVE received from webcore; ignoring 
01-10 14:08:32.590 W/webview (4027): Stale touch event ACTION_POINTER_UP(0) received from webcore; ignoring 
01-10 14:08:32.590 W/webview (4027): Stale touch event ACTION_POINTER_UP(0) received from webcore; ignoring 
01-10 14:08:35.430 W/ActivityManager( 142): Force finishing activity com.MyActivity/.Home 
01-10 14:08:35.470 I/Process ( 142): Sending signal. PID: 4027 SIG: 9 
01-10 14:08:35.470 I/ActivityManager( 142): Killing com.MyActivity (pid=4027): user's request 
01-10 14:08:35.490 I/AwesomePlayer( 89): reset 
01-10 14:08:35.490 I/WindowManager( 142): WIN DEATH: Window{41363c38 com.MyActivity/com.MyActivity.Home paused=true} 
01-10 14:08:35.490 I/ActivityManager( 142): Process com.MyActivity (pid 4027) has died. 
01-10 14:08:35.500 I/AwesomePlayer( 89): cancel player events 

コード：

private void showVideo(String url) { 
    if (videoView != null) 
    return; 

    videoView = (VideoView) findViewById(R.id.video_view); 
    findViewById(R.id.close_button).setVisibility(View.VISIBLE); 
    videoView.setVisibility(View.VISIBLE); 

    MediaController mediaController = new MediaController(this); 
    mediaController.setAnchorView(findViewById(R.id.root_view)); 
    Uri video = Uri.parse(url); 
    videoView.setMediaController(mediaController); 
    videoView.setVideoURI(video); 
    videoView.start(); 
    videoView.setOnCompletionListener(new OnCompletionListener() { 
    public void onCompletion(MediaPlayer mp) { 
      videoView.setVisibility(View.GONE); 
      videoView = null; 
      findViewById(R.id.close_button).setVisibility(View.GONE); 
    } 
    }); 
} 

任意のアイデア？

Answer 1

"アクティビティMyActivity（アプリケーションMyActivity）が応答していません"というエラーは、メインアプリケーションスレッドで時間がかかることを意味します。エミュレータを使用しようとしている場合、PCが3.2エミュレータをうまく動かすほど速くないことがあります。

それ以外の場合は、LogCat、Traceview、StrictModeなどのログに使用するかどうかにかかわらず、メインアプリケーションスレッドでどこに時間を費やしているかを判断するだけで済みます。