java.lang.NullPointerException

Stack Overflow | andro | 4 months ago
  1. 0

    Recycler View call from function breaks

    Stack Overflow | 1 year ago | Testo
    java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.support.v7.widget.RecyclerView$LayoutManager.canScrollVertically()' on a null object reference
  2. 0

    java - Recycler View call from function breaks - Stack Overflow

    xluat.com | 1 year ago
    java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.support.v7.widget.RecyclerView$LayoutManager.canScrollVertically()' on a null object reference
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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at android.support.v7.widget.RecyclerView.computeVerticalScrollRange()
    2. Android v7
      RecyclerView.computeVerticalScrollRange
      1. android.support.v7.widget.RecyclerView.computeVerticalScrollRange(SourceFile:1654)
      1 frame
    3. Android Platform
      View.draw
      1. android.view.View.onDrawScrollBars(View.java:12160)
      2. android.view.View.draw(View.java:14742)
      2 frames
    4. Android v7
      RecyclerView.draw
      1. android.support.v7.widget.RecyclerView.draw(SourceFile:3097)
      1 frame
    5. Android Platform
      FrameLayout.draw
      1. android.view.View.getDisplayList(View.java:13588)
      2. android.view.View.getDisplayList(View.java:13635)
      3. android.view.View.draw(View.java:14430)
      4. android.view.ViewGroup.drawChild(ViewGroup.java:3252)
      5. android.view.ViewGroup.dispatchDraw(ViewGroup.java:3070)
      6. android.view.View.draw(View.java:14739)
      7. android.view.View.getDisplayList(View.java:13588)
      8. android.view.View.getDisplayList(View.java:13635)
      9. android.view.View.draw(View.java:14430)
      10. android.view.ViewGroup.drawChild(ViewGroup.java:3252)
      11. android.view.ViewGroup.dispatchDraw(ViewGroup.java:3070)
      12. android.view.View.draw(View.java:14739)
      13. android.widget.FrameLayout.draw(FrameLayout.java:534)
      13 frames