アプリが最小化されているときにYouTubePlayerViewでアクティビティがクラッシュする

Question

私はYouTubePlayerViewライブラリをアプリに統合していますが、アプリを最小限にするとクラッシュしたり、アプリがバックグラウンドでクラッシュしたときにいつでも言うことができます。ここで

はクラッシュログである：ここで

java.lang.NoClassDefFoundError: rt 
     at rs.<clinit>(SourceFile:17) 
     at android.support.v7.widget.RecyclerView.onSaveInstanceState(SourceFile:201) 
     at android.view.View.dispatchSaveInstanceState(View.java:12985) 
     at android.view.ViewGroup.dispatchFreezeSelfOnly(ViewGroup.java:2643) 
     at android.support.v7.widget.RecyclerView.dispatchSaveInstanceState(SourceFile:220) 
     at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2629) 
     at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2629) 
     at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2629) 
     at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2629) 
     at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2629) 
     at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2629) 
     at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2629) 
     at android.view.View.saveHierarchyState(View.java:12968) 
     at com.android.internal.policy.impl.PhoneWindow.saveHierarchyState(PhoneWindow.java:1705) 
     at android.app.Activity.onSaveInstanceState(Activity.java:1277) 
     at com.google.android.youtube.player.YouTubeBaseActivity.onSaveInstanceState(Unknown Source) 
     at android.app.Activity.performSaveInstanceState(Activity.java:1226) 
     at android.app.Instrumentation.callActivityOnSaveInstanceState(Instrumentation.java:1223) 
     at android.app.ActivityThread.performStopActivityInner(ActivityThread.java:3342) 
     at android.app.ActivityThread.handleStopActivity(ActivityThread.java:3401) 
     at android.app.ActivityThread.access$1100(ActivityThread.java:139) 
     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1320) 
     at android.os.Handler.dispatchMessage(Handler.java:102) 
     at android.os.Looper.loop(Looper.java:149) 
     at android.app.ActivityThread.main(ActivityThread.java:5257) 
     at java.lang.reflect.Method.invokeNative(Native Method) 
     at java.lang.reflect.Method.invoke(Method.java:515) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:609) 
     at dalvik.system.NativeStart.main(Native Method) 
07-03 13:02:44.608 31106-31174/com.seeken D/FA: Logging event (FE): _ae, Bundle[{_o=crash, timestamp=1499067164609, fatal=1}] 
07-03 13:02:44.808 31106-31106/com.seeken I/dalvikvm: Could not find method java.util.Locale.toLanguageTag, referenced from method bme.a 
07-03 13:02:44.808 31106-31106/com.seeken W/dalvikvm: VFY: unable to resolve virtual method 10275: Ljava/util/Locale;.toLanguageTag()Ljava/lang/String; 
07-03 13:02:44.808 31106-31106/com.seeken D/dalvikvm: VFY: replacing opcode 0x6e at 0x00e4 
07-03 13:02:44.848 31106-31106/com.seeken D/dalvikvm: GC_FOR_ALLOC freed 3454K, 15% free 20646K/24152K, paused 25ms, total 25ms 
07-03 13:02:44.868 31106-31106/com.seeken E/AndroidRuntime: FATAL EXCEPTION: main 
Process: com.seeken, PID: 31106 
java.lang.NoClassDefFoundError: rt 
    at rs.<clinit>(SourceFile:17) 
    at android.support.v7.widget.RecyclerView.onSaveInstanceState(SourceFile:201) 
    at android.view.View.dispatchSaveInstanceState(View.java:12985) 
    at android.view.ViewGroup.dispatchFreezeSelfOnly(ViewGroup.java:2643) 
    at android.support.v7.widget.RecyclerView.dispatchSaveInstanceState(SourceFile:220) 
    at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2629) 
    at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2629) 
    at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2629) 
    at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2629) 
    at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2629) 
    at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2629) 
    at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2629) 
    at android.view.View.saveHierarchyState(View.java:12968) 
    at com.android.internal.policy.impl.PhoneWindow.saveHierarchyState(PhoneWindow.java:1705) 
    at android.app.Activity.onSaveInstanceState(Activity.java:1277) 
    at com.google.android.youtube.player.YouTubeBaseActivity.onSaveInstanceState(Unknown Source) 
    at android.app.Activity.performSaveInstanceState(Activity.java:1226) 
    at android.app.Instrumentation.callActivityOnSaveInstanceState(Instrumentation.java:1223) 
    at android.app.ActivityThread.performStopActivityInner(ActivityThread.java:3342) 
    at android.app.ActivityThread.handleStopActivity(ActivityThread.java:3401) 
    at android.app.ActivityThread.access$1100(ActivityThread.java:139) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1320) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:149) 
    at android.app.ActivityThread.main(ActivityThread.java:5257) 
    at java.lang.reflect.Method.invokeNative(Native Method) 
    at java.lang.reflect.Method.invoke(Method.java:515) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:609) 
    at dalvik.system.NativeStart.main(Native Method) 

は私のマニフェストです：

<activity android:name=".activities.VideoActivity" 
      android:configChanges="orientation|screenLayout|screenSize"/> 

Answer 1

私は再起動時にアプリケーションがクラッシュしていると思うので、設定の

を変えるあなたは無効にすることができますオリエンテーションの変更のための自動アクティビティレクリエーション、およびそれを自分で処理します。

は、それを行うの詳細については、 runtime-changes

を

android:configChanges="orientation|screenLayout|screenSize" 

を追加したり、活動にこのコードを追加するには

@Nullable 
protected YouTubePlayer mUtPlayer; 

@Override 
public void onSaveInstanceState(Bundle outState) { 
/* release ut when home button pressed. */ 
if (mUtPlayer != null) { 
    mUtPlayer.release(); 
} 
mUtPlayer = null; 
super.onSaveInstanceState(outState); 
} 

@Override 
public void onStop() { 
/* release ut when go to other fragment or back pressed */ 
if (mUtPlayer != null) { 
    mUtPlayer.release(); 
} 
mUtPlayer = null; 
super.onStop(); 
} 

Answer 2

あなたは、いくつかの回避策を提案し、このSO postを参照することがあるかもしれませんヘルプ：

• YouTubePlayerをonSavedInstanceStateおよびonStopにリリースします。

@Nullable 
protected YouTubePlayer mUtPlayer; 

@Override 
public void onSaveInstanceState(Bundle outState) { 
    /* release ut when home button pressed. */ 
    if (mUtPlayer != null) { 
     mUtPlayer.release(); 
    } 
    mUtPlayer = null; 
    super.onSaveInstanceState(outState); 
} 

@Override 
public void onStop() { 
    /* release ut when go to other fragment or back pressed */ 
    if (mUtPlayer != null) { 
     mUtPlayer.release(); 
    } 
    mUtPlayer = null; 
    super.onStop(); 
} 

• それが動作しない場合は、単にではなく、onSaveInstanceStateとonStopで同じ行を追加し、初期化YouTubePlayerFragmentonResumeではなく、onCreateでそれよアクティビティがフォアグラウンドになるたびに利用可能になり、アプリがバックグラウンドに移行すると解放されます。

追加参照：configChangesは= "オリエンテーション| screenLayout |画面サイズ" `マニフェストが、それでも直面問題でこのコード：

• NoClassDefFoundError Crash on Minimizing Youtube Player on Android 4.0, 4.2, 4.4