當應用程序被最小化時，YouTubePlayerView的活動崩潰

我已將YouTubePlayerView庫集成到我們的應用程序中，並且它的工作完美無缺，但每當我將應用程序最小化時，它都會崩潰，或者當應用程序在後臺崩潰時說。當應用程序被最小化時，YouTubePlayerView的活動崩潰

這裏是崩潰日誌：

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)

這裏是我的清單：

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

來源

2017-07-03 Faisal Shaikh

我想是因爲配置的重新啓動時，您的應用程序崩潰改變

您可以禁用自動活動重新定向改變，並自己處理。

要做到這一點，添加

android:configChanges="orientation|screenLayout|screenSize"

瞭解更多信息runtime-changes

或在您的活動添加此代碼

@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(); 
}

來源

2017-07-03 07:45:44

我已經添加了'機器人：configChanges = 「方向|屏幕布置|屏幕尺寸」'這個清單中，但仍然面臨着問題的代碼。請檢查。 –

你可以參考這個SO post是提出了一些解決方法可能幫助：

Release YouTubePlayer at onSavedInstanceState and onStop。

@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(); 
}

如果它不工作，只是添加同一線而不是onSaveInstanceState和onStop，並在onResume，而不是在onCreate所以它會初始化YouTubePlayerFragment每次活動在前臺時都可用，並在應用程序轉到後臺時發佈。

附加參考：

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

來源

2017-07-06 15:40:57 abielita

當應用程序被最小化時，YouTubePlayerView的活動崩潰

回答

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