java.lang.NullPointerException: Attempt to read from field 'int android.support.v7.widget.RecyclerView$ItemAnimator$ItemHolderInfo.left' on a null object reference

google.com | 4 months ago
  1. 0

    GitHub comment 28#190645304

    GitHub | 9 months ago | Zeliret
    java.lang.NullPointerException: Attempt to read from field 'int android.support.v7.widget.RecyclerView$ItemAnimator$ItemHolderInfo.left' on a null object reference
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  3. 0

    NPE with 23.2.0 in android.support.v7.widget.RecyclerView$ItemAnimator$ItemHolderInfo.left

    GitHub | 9 months ago | gabrielemariotti
    java.lang.NullPointerException: Attempt to read from field 'int android.support.v7.widget.RecyclerView$ItemAnimator$ItemHolderInfo.left' on a null object reference
  4. 0

    Nullpointer when compiling with "support:recyclerview-v7:24.0.0-alpha1"

    GitHub | 9 months ago | jaydeepw
    java.lang.NullPointerException: Attempt to read from field 'int android.support.v7.widget.RecyclerView$ItemAnimator$ItemHolderInfo.left' on a null object reference

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Root Cause Analysis

  1. java.lang.NullPointerException

    Attempt to read from field 'int android.support.v7.widget.RecyclerView$ItemAnimator$ItemHolderInfo.left' on a null object reference

    at android.support.v7.widget.SimpleItemAnimator.animateDisappearance()
  2. Android v7
    RecyclerView.onLayout
    1. android.support.v7.widget.SimpleItemAnimator.animateDisappearance(SimpleItemAnimator.java:78)
    2. android.support.v7.widget.RecyclerView.animateDisappearance(RecyclerView.java:3246)
    3. android.support.v7.widget.RecyclerView.access$700(RecyclerView.java:147)
    4. android.support.v7.widget.RecyclerView$4.processDisappeared(RecyclerView.java:422)
    5. android.support.v7.widget.ViewInfoStore.process(ViewInfoStore.java:231)
    6. android.support.v7.widget.RecyclerView.dispatchLayoutStep3(RecyclerView.java:3086)
    7. android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2914)
    8. android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3277)
    8 frames
  3. Android Platform
    FrameLayout.onLayout
    1. android.view.View.layout(View.java:16636)
    2. android.view.ViewGroup.layout(ViewGroup.java:5437)
    3. android.widget.FrameLayout.layoutChildren(FrameLayout.java:336)
    4. android.widget.FrameLayout.onLayout(FrameLayout.java:273)
    5. android.view.View.layout(View.java:16636)
    6. android.view.ViewGroup.layout(ViewGroup.java:5437)
    7. android.widget.FrameLayout.layoutChildren(FrameLayout.java:336)
    8. android.widget.FrameLayout.onLayout(FrameLayout.java:273)
    9. android.view.View.layout(View.java:16636)
    10. android.view.ViewGroup.layout(ViewGroup.java:5437)
    11. android.widget.LinearLayout.setChildFrame(LinearLayout.java:1735)
    12. android.widget.LinearLayout.layoutVertical(LinearLayout.java:1579)
    13. android.widget.LinearLayout.onLayout(LinearLayout.java:1488)
    14. android.view.View.layout(View.java:16636)
    15. android.view.ViewGroup.layout(ViewGroup.java:5437)
    16. android.widget.FrameLayout.layoutChildren(FrameLayout.java:336)
    17. android.widget.FrameLayout.onLayout(FrameLayout.java:273)
    18. android.view.View.layout(View.java:16636)
    19. android.view.ViewGroup.layout(ViewGroup.java:5437)
    20. android.widget.FrameLayout.layoutChildren(FrameLayout.java:336)
    21. android.widget.FrameLayout.onLayout(FrameLayout.java:273)
    22. android.view.View.layout(View.java:16636)
    23. android.view.ViewGroup.layout(ViewGroup.java:5437)
    24. android.widget.FrameLayout.layoutChildren(FrameLayout.java:336)
    25. android.widget.FrameLayout.onLayout(FrameLayout.java:273)
    25 frames
  4. Android
    PhoneWindow$DecorView.onLayout
    1. com.android.internal.policy.PhoneWindow$DecorView.onLayout(PhoneWindow.java:2678)
    1 frame
  5. Android Platform
    ActivityThread.main
    1. android.view.View.layout(View.java:16636)
    2. android.view.ViewGroup.layout(ViewGroup.java:5437)
    3. android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2179)
    4. android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1939)
    5. android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1115)
    6. android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6023)
    7. android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
    8. android.view.Choreographer.doCallbacks(Choreographer.java:670)
    9. android.view.Choreographer.doFrame(Choreographer.java:606)
    10. android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
    11. android.os.Handler.handleCallback(Handler.java:739)
    12. android.os.Handler.dispatchMessage(Handler.java:95)
    13. android.os.Looper.loop(Looper.java:148)
    14. android.app.ActivityThread.main(ActivityThread.java:5422)
    14 frames
  6. Java RT
    Method.invoke
    1. java.lang.reflect.Method.invoke(Native Method)
    1 frame
  7. Android
    ZygoteInit.main
    1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
    2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
    2 frames