java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference

GitHub | Isolus | 2 years ago
  1. 0

    stickyindex expects at least two elements

    GitHub | 2 years ago | Isolus
    java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference
  2. 0
    You have to provide valid identical number for each child items.
    via GitHub by h6ah4i
  3. 0

    NullPointerException

    GitHub | 5 months ago | zeshaoaaa
    java.lang.NullPointerException: Attempt to invoke virtual method 'int android.support.v7.widget.RecyclerView$LayoutManager.getChildCount()' on a null object reference
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  5. 0

    BaseMultiItemQuickAdapter 报错

    GitHub | 5 months ago | wuzhaohui026
    java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Integer.intValue()' on a null object reference
  6. 0

    NullPointerException on Facebook Native Ads layout with RecyclerAdapter

    Stack Overflow | 7 months ago | bluemunch
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.LinearLayout.addView(android.view.View)' on a null object reference

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    Root Cause Analysis

    1. java.lang.NullPointerException

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

      at br.com.stickyindex.layout.IndexLayoutManager.update()
    2. br.com.stickyindex
      IndexScrollListener.onScrolled
      1. br.com.stickyindex.layout.IndexLayoutManager.update(IndexLayoutManager.java:57)
      2. br.com.stickyindex.listener.IndexScrollListener.notifySubscribers(IndexScrollListener.java:43)
      3. br.com.stickyindex.listener.IndexScrollListener.onScrolled(IndexScrollListener.java:26)
      3 frames
    3. Android v7
      RecyclerView.onLayout
      1. android.support.v7.widget.RecyclerView.dispatchOnScrolled(RecyclerView.java:3630)
      2. android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2784)
      3. android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:2971)
      3 frames
    4. Android Platform
      ViewGroup.layout
      1. android.view.View.layout(View.java:15671)
      2. android.view.ViewGroup.layout(ViewGroup.java:5038)
      3. android.widget.RelativeLayout.onLayout(RelativeLayout.java:1076)
      4. android.view.View.layout(View.java:15671)
      5. android.view.ViewGroup.layout(ViewGroup.java:5038)
      5 frames
    5. Android Support v4
      SwipeRefreshLayout.onLayout
      1. android.support.v4.widget.SwipeRefreshLayout.onLayout(SwipeRefreshLayout.java:562)
      1 frame
    6. Android Platform
      ViewGroup.layout
      1. android.view.View.layout(View.java:15671)
      2. android.view.ViewGroup.layout(ViewGroup.java:5038)
      2 frames
    7. Android Support v4
      ViewPager.onLayout
      1. android.support.v4.view.ViewPager.onLayout(ViewPager.java:1626)
      1 frame
    8. Android Platform
      ViewGroup.layout
      1. android.view.View.layout(View.java:15671)
      2. android.view.ViewGroup.layout(ViewGroup.java:5038)
      2 frames
    9. android.support.design
      CoordinatorLayout.onLayout
      1. android.support.design.widget.CoordinatorLayout.layoutChild(CoordinatorLayout.java:1000)
      2. android.support.design.widget.CoordinatorLayout.onLayoutChild(CoordinatorLayout.java:710)
      3. android.support.design.widget.ViewOffsetBehavior.onLayoutChild(ViewOffsetBehavior.java:42)
      4. android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onLayoutChild(AppBarLayout.java:982)
      5. android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:723)
      5 frames
    10. Android Platform
      ViewGroup.layout
      1. android.view.View.layout(View.java:15671)
      2. android.view.ViewGroup.layout(ViewGroup.java:5038)
      2 frames
    11. Android Support v4
      DrawerLayout.onLayout
      1. android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:907)
      1 frame
    12. Android Platform
      Handler.handleCallback
      1. android.view.View.layout(View.java:15671)
      2. android.view.ViewGroup.layout(ViewGroup.java:5038)
      3. android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
      4. android.widget.FrameLayout.onLayout(FrameLayout.java:514)
      5. android.view.View.layout(View.java:15671)
      6. android.view.ViewGroup.layout(ViewGroup.java:5038)
      7. android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
      8. android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
      9. android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
      10. android.view.View.layout(View.java:15671)
      11. android.view.ViewGroup.layout(ViewGroup.java:5038)
      12. android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
      13. android.widget.FrameLayout.onLayout(FrameLayout.java:514)
      14. android.view.View.layout(View.java:15671)
      15. android.view.ViewGroup.layout(ViewGroup.java:5038)
      16. android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
      17. android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
      18. android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
      19. android.view.View.layout(View.java:15671)
      20. android.view.ViewGroup.layout(ViewGroup.java:5038)
      21. android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
      22. android.widget.FrameLayout.onLayout(FrameLayout.java:514)
      23. android.view.View.layout(View.java:15671)
      24. android.view.ViewGroup.layout(ViewGroup.java:5038)
      25. android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2086)
      26. android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1843)
      27. android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1061)
      28. android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5885)
      29. android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
      30. android.view.Choreographer.doCallbacks(Choreographer.java:580)
      31. android.view.Choreographer.doFrame(Choreographer.java:550)
      32. android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
      33. android.os.Handler.handleCallback(Handler.java:739)
      33 frames