java.lang.RuntimeException: Unable to stop activity: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.unFocus(android.view.View)' on a null object reference

Stack Overflow | Manny | 1 week ago
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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'void android.view.View.unFocus(android.view.View)' on a null object reference

      at android.view.ViewGroup.removeViewInternal()
    2. Android Platform
      ViewGroup.removeViewAt
      1. android.view.ViewGroup.removeViewInternal(ViewGroup.java:4937)
      2. android.view.ViewGroup.removeViewAt(ViewGroup.java:4899)
      2 frames
    3. Android Support v4
      FragmentActivity.onStop
      1. android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1535)
      2. android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1585)
      3. android.support.v4.app.FragmentManagerImpl.dispatchStop(FragmentManager.java:2855)
      4. android.support.v4.app.FragmentController.dispatchStop(FragmentController.java:245)
      5. android.support.v4.app.FragmentActivity.onStop(FragmentActivity.java:627)
      5 frames
    4. Android Platform
      ActivityThread.main
      1. android.app.Instrumentation.callActivityOnStop(Instrumentation.java:1306)
      2. android.app.Activity.performStop(Activity.java:7070)
      3. android.app.ActivityThread.performStopActivityInner(ActivityThread.java:4707)
      4. android.app.ActivityThread.handleStopActivity(ActivityThread.java:4774)
      5. android.app.ActivityThread.access$1400(ActivityThread.java:222)
      6. android.app.ActivityThread$H.handleMessage(ActivityThread.java:1824)
      7. android.os.Handler.dispatchMessage(Handler.java:102)
      8. android.os.Looper.loop(Looper.java:158)
      9. android.app.ActivityThread.main(ActivityThread.java:7229)
      9 frames