Workaround for Android Bug 6191

SafeViewFlipper.java

/**
 * Works around Android Bug 6191 by catching IllegalArgumentException after
 * detached from the window.
 *
 * @author Eric Burke (eric@squareup.com)
 */
public class SafeViewFlipper extends ViewFlipper {
  public SafeViewFlipper(Context context) {
    super(context);
  }

  public SafeViewFlipper(Context context, AttributeSet attrs) {
    super(context, attrs);
  }

  /**
   * Workaround for Android Bug 6191:
   * http://code.google.com/p/android/issues/detail?id=6191
   * <p/>
   * ViewFlipper occasionally throws an IllegalArgumentException after
   * screen rotations.
   */
  @Override protected void onDetachedFromWindow() {
    try {
      super.onDetachedFromWindow();
    } catch (IllegalArgumentException e) {
      Log.d(TAG, "SafeViewFlipper ignoring IllegalArgumentException");

      // Call stopFlipping() in order to kick off updateRunning()
      stopFlipping();
    }
  }
}

/*
Typical stack trace from the Android bug:

Uncaught handler: thread main exiting due to uncaught exception
java.lang.IllegalArgumentException: Receiver not registered: android.widget.ViewFlipper$1@447dc5d0
  at android.app.ActivityThread$PackageInfo.forgetReceiverDispatcher(ActivityThread.java:667)
	at android.app.ApplicationContext.unregisterReceiver(ApplicationContext.java:747)
	at android.content.ContextWrapper.unregisterReceiver(ContextWrapper.java:321)
	at android.widget.ViewFlipper.onDetachedFromWindow(ViewFlipper.java:104)
	at android.view.View.dispatchDetachedFromWindow(View.java:5835)
	at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1076)
	at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1074)
	at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1074)
	at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1074)
	at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1074)
	at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1074)
	at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1074)
	at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1074)
	at android.view.ViewRoot.dispatchDetachedFromWindow(ViewRoot.java:1570)
	at android.view.ViewRoot.doDie(ViewRoot.java:2556)
	at android.view.ViewRoot.die(ViewRoot.java:2526)
	at android.view.WindowManagerImpl.removeViewImmediate(WindowManagerImpl.java:218)
	at android.view.Window$LocalWindowManager.removeViewImmediate(Window.java:436)
	at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:3498)
	at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3599)
	at android.app.ActivityThread.access$2300(ActivityThread.java:119)
	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1867)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loop(Looper.java:123)
	at android.app.ActivityThread.main(ActivityThread.java:4363)
	at java.lang.reflect.Method.invokeNative(Native Method)
	at java.lang.reflect.Method.invoke(Method.java:521)
	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
	at dalvik.system.NativeStart.main(Native Method)
*/