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Codewaves / Sticky-Header-Grid

Sticky header grid layout manager for RecycleView
MIT License
116 stars 33 forks source link

Problem in StickyHeaderGridLayoutManager class #35

Open FawziQeshta opened 3 years ago

FawziQeshta commented 3 years ago

Fatal Exception: java.lang.NullPointerException Attempt to read from field 'android.view.View androidx.recyclerview.widget.RecyclerView$d0.itemView' on a null object reference

   at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:9)
   at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:49)
   at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:1)
   at com.codewaves.stickyheadergrid.StickyHeaderGridLayoutManager.onLayoutChildren(StickyHeaderGridLayoutManager.java:31)
   at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:38)
   at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:37)
   at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:5)
   at android.view.View.layout(View.java:19712)
   at android.view.ViewGroup.layout(ViewGroup.java:6113)
   at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1083)
   at android.view.View.layout(View.java:19712)
   at android.view.ViewGroup.layout(ViewGroup.java:6113)
   at com.google.android.material.appbar.HeaderScrollingViewBehavior.layoutChild(HeaderScrollingViewBehavior.java:6)
   at com.google.android.material.appbar.ViewOffsetHelper.onViewLayout(ViewOffsetHelper.java)
   at androidx.coordinatorlayout.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:2)
   at android.view.View.layout(View.java:19712)
   at android.view.ViewGroup.layout(ViewGroup.java:6113)
   at androidx.viewpager.widget.ViewPager.onLayout(ViewPager.java:258)
   at android.view.View.layout(View.java:19712)
   at android.view.ViewGroup.layout(ViewGroup.java:6113)
   at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1083)
   at android.view.View.layout(View.java:19712)
   at android.view.ViewGroup.layout(ViewGroup.java:6113)
   at androidx.drawerlayout.widget.DrawerLayout.onLayout(DrawerLayout.java:56)
   at android.view.View.layout(View.java:19712)
   at android.view.ViewGroup.layout(ViewGroup.java:6113)
   at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
   at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
   at android.view.View.layout(View.java:19712)
   at android.view.ViewGroup.layout(ViewGroup.java:6113)
   at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1791)
   at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1635)
   at android.widget.LinearLayout.onLayout(LinearLayout.java:1544)
   at android.view.View.layout(View.java:19712)
   at android.view.ViewGroup.layout(ViewGroup.java:6113)
   at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
   at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
   at android.view.View.layout(View.java:19712)
   at android.view.ViewGroup.layout(ViewGroup.java:6113)
   at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1791)
   at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1635)
   at android.widget.LinearLayout.onLayout(LinearLayout.java:1544)
   at android.view.View.layout(View.java:19712)
   at android.view.ViewGroup.layout(ViewGroup.java:6113)
   at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
   at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
   at com.android.internal.policy.DecorView.onLayout(DecorView.java:789)
   at android.view.View.layout(View.java:19712)
   at android.view.ViewGroup.layout(ViewGroup.java:6113)
   at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2516)
   at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2237)
   at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1411)
   at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6784)
   at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
   at android.view.Choreographer.doCallbacks(Choreographer.java:723)
   at android.view.Choreographer.doFrame(Choreographer.java:658)
   at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
   at android.os.Handler.handleCallback(Handler.java:790)
   at android.os.Handler.dispatchMessage(Handler.java:99)
   at android.os.Looper.loop(Looper.java:164)
   at android.app.ActivityThread.main(ActivityThread.java:6719)
   at java.lang.reflect.Method.invoke(Method.java)
   at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:449)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)