java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.app.ActionBar.setShowHideAnimationEnabled(boolean)' on a null object reference

GitHub | wfc505059241 | 4 months ago
  1. 0

    4.5版本 ActionBar怎么隐藏

    GitHub | 4 months ago | wfc505059241
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.app.ActionBar.setShowHideAnimationEnabled(boolean)' on a null object reference
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  3. 0

    Android System: app crashes when starting a new activity

    blogspot.com | 1 year ago
    java.lang.RuntimeException: Unable to start activity ComponentInfo{rafaelmarinho.dobau/rafaelmarinho.dobau.Parse}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference
  4. 0

    app crashes when starting a new activity

    Stack Overflow | 1 year ago | Rafael Marinho
    java.lang.RuntimeException: Unable to start activity ComponentInfo{rafaelmarinho.dobau/rafaelmarinho.dobau.Parse}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'void android.support.v7.app.ActionBar.setShowHideAnimationEnabled(boolean)' on a null object reference

      at fm.jiecao.jcvideoplayer_lib.JCVideoPlayer.toWindowFullscreen()
    2. fm.jiecao.jcvideoplayer_lib
      JCVideoPlayerStandard.onClick
      1. fm.jiecao.jcvideoplayer_lib.JCVideoPlayer.toWindowFullscreen(JCVideoPlayer.java:556)
      2. fm.jiecao.jcvideoplayer_lib.JCVideoPlayer.onClick(JCVideoPlayer.java:186)
      3. fm.jiecao.jcvideoplayer_lib.JCVideoPlayerStandard.onClick(JCVideoPlayerStandard.java:165)
      3 frames
    3. Android Platform
      ActivityThread.main
      1. android.view.View.performClick(View.java:4790)
      2. android.view.View$PerformClick.run(View.java:19933)
      3. android.os.Handler.handleCallback(Handler.java:739)
      4. android.os.Handler.dispatchMessage(Handler.java:95)
      5. android.os.Looper.loop(Looper.java:135)
      6. android.app.ActivityThread.main(ActivityThread.java:5569)
      6 frames
    4. Java RT
      Method.invoke
      1. java.lang.reflect.Method.invoke(Native Method)
      2. java.lang.reflect.Method.invoke(Method.java:372)
      2 frames
    5. Android
      ZygoteInit.main
      1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:931)
      2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:726)
      2 frames