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This repository is used for customer feedback regarding Telerik UI for NativeScript. The issues system here is used by customers who want to submit their feature requests or vote for existing ones.
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RadListView [Android] RecyclerView$ViewHolder.itemView on a null object reference #1206

Closed NathanWalker closed 5 years ago

NathanWalker commented 5 years ago

This error appears at random with no reliable repro. Possible to just guard this condition?

System.err: java.lang.NullPointerException: Attempt to read from field 'android.view.View androidx.recyclerview.widget.RecyclerView$ViewHolder.itemView' on a null object reference
System.err:     at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6795)
System.err:     at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5975)
System.err:     at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5858)
System.err:     at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5854)
System.err:     at androidx.recyclerview.widget.LayoutState.next(LayoutState.java:100)

Which platform(s) does your issue occur on?

Android

Please provide the following version numbers that your issue occurs with:

Please tell us how to recreate the issue in as much detail as possible.

Unfortunately this is purely random and appears can happen at anytime but most likely is result of user navigating into and away from a view with RLV on it. Can it just be guarded to not crash an app?

mtenus commented 5 years ago

I have the same issue below a full exception message

JS: ERROR Error: java.lang.IllegalStateException: Cannot call this method while RecyclerView is computing a layout or scrolling com.telerik.widget.list.RadListView{727f0ae VFED..... ......I. 0,0-1080,1557 #16}, adapter:com.telerik.widget.list.ListViewWrapperAdapter@1987676, layout:androidx.recyclerview.widget.LinearLayoutManager@42279dc, context:com.tns.NativeScriptActivity@d3bdca JS: androidx.recyclerview.widget.RecyclerView.assertNotInLayoutOrScroll(RecyclerView.java:2880) JS: androidx.recyclerview.widget.RecyclerView$RecyclerViewDataObserver.onChanged(RecyclerView.java:5281) JS: androidx.recyclerview.widget.RecyclerView$AdapterDataObservable.notifyChanged(RecyclerView.java:11997) JS: androidx.recyclerview.widget.RecyclerView$Adapter.notifyDataSetChanged(RecyclerView.java:7070) JS: com.telerik.widget.list.ListViewWrapperAdapter.setBottomIndicatorView(ListViewWrapperAdapter.java:122) JS: com.telerik.widget.list.ListViewWrapperAdapter.updateOnDemandSettings(ListViewWrapperAdapter.java:320) JS: com.telerik.widget.... System.err: An uncaught Exception occurred on "main" thread. System.err: Attempt to read from field 'android.view.View androidx.recyclerview.widget.RecyclerView$ViewHolder.itemView' on a null object reference System.err: System.err: StackTrace: System.err: java.lang.NullPointerException: Attempt to read from field 'android.view.View androidx.recyclerview.widget.RecyclerView$ViewHolder.itemView' on a null object reference System.err: at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6795) System.err: at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5975) System.err: at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5858) System.err: at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5854) System.err: at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2230) System.err: at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1557) System.err: at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1517) System.err: at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:612) System.err: at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3924) System.err: at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:3641) System.err: at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4194) System.err: at com.telerik.widget.list.RadListView.onLayout(RadListView.java:589) System.err: at android.view.View.layout(View.java:19590) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6053) System.err: at androidx.swiperefreshlayout.widget.SwipeRefreshLayout.onLayout(SwipeRefreshLayout.java:625) System.err: at android.view.View.layout(View.java:19590) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6053) System.err: at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) System.err: at android.widget.FrameLayout.onLayout(FrameLayout.java:261) System.err: at android.view.View.layout(View.java:19590) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6053) System.err: at org.nativescript.widgets.CommonLayoutParams.layoutChild(CommonLayoutParams.java:222) System.err: at org.nativescript.widgets.GridLayout.onLayout(GridLayout.java:354) System.err: at android.view.View.layout(View.java:19590) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6053) System.err: at org.nativescript.widgets.CommonLayoutParams.layoutChild(CommonLayoutParams.java:222) System.err: at org.nativescript.widgets.StackLayout.layoutVertical(StackLayout.java:178) System.err: at org.nativescript.widgets.StackLayout.onLayout(StackLayout.java:132) System.err: at android.view.View.layout(View.java:19590) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6053) System.err: at org.nativescript.widgets.CommonLayoutParams.layoutChild(CommonLayoutParams.java:222) System.err: at org.nativescript.widgets.GridLayout.onLayout(GridLayout.java:354) System.err: at android.view.View.layout(View.java:19590) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6053) System.err: at org.nativescript.widgets.CommonLayoutParams.layoutChild(CommonLayoutParams.java:222) System.err: at org.nativescript.widgets.ContentLayout.onLayout(ContentLayout.java:73) System.err: at android.view.View.layout(View.java:19590) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6053) System.err: at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) System.err: at android.widget.FrameLayout.onLayout(FrameLayout.java:261) System.err: at android.view.View.layout(View.java:19590) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6053) System.err: at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) System.err: at android.widget.FrameLayout.onLayout(FrameLayout.java:261) System.err: at android.view.View.layout(View.java:19590) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6053) System.err: at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) System.err: at android.widget.FrameLayout.onLayout(FrameLayout.java:261) System.err: at android.view.View.layout(View.java:19590) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6053) System.err: at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1791) System.err: at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1635) System.err: at android.widget.LinearLayout.onLayout(LinearLayout.java:1544) System.err: at android.view.View.layout(View.java:19590) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6053) System.err: at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) System.err: at android.widget.FrameLayout.onLayout(FrameLayout.java:261) System.err: at android.view.View.layout(View.java:19590) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6053) System.err: at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1791) System.err: at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1635) System.err: at android.widget.LinearLayout.onLayout(LinearLayout.java:1544) System.err: at android.view.View.layout(View.java:19590) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6053) System.err: at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) System.err: at android.widget.FrameLayout.onLayout(FrameLayout.java:261) System.err: at com.android.internal.policy.DecorView.onLayout(DecorView.java:758) System.err: at android.view.View.layout(View.java:19590) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6053) System.err: at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2484) System.err: at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2200) System.err: at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1386) System.err: at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6733) System.err: at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911) System.err: at android.view.Choreographer.doCallbacks(Choreographer.java:723) System.err: at android.view.Choreographer.doFrame(Choreographer.java:658) System.err: at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897) System.err: at android.os.Handler.handleCallback(Handler.java:789) System.err: at android.os.Handler.dispatchMessage(Handler.java:98) System.err: at android.os.Looper.loop(Looper.java:164) System.err: at android.app.ActivityThread.main(ActivityThread.java:6541) System.err: at java.lang.reflect.Method.invoke(Native Method) System.err: at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)

nericode commented 5 years ago

I have the same problem here:

System.err: Attempt to read from field 'android.view.View androidx.recyclerview.widget.RecyclerView$ViewHolder.itemView' on a null object reference
System.err: 
System.err: StackTrace:
System.err: java.lang.NullPointerException: Attempt to read from field 'android.view.View androidx.recyclerview.widget.RecyclerView$ViewHolder.itemView' on a null object reference
System.err:     at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6795)
System.err:     at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5975)
System.err:     at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5858)
System.err:     at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5854)
System.err:     at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2230)
System.err:     at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1557)
System.err:     at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1517)
System.err:     at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:612)
System.err:     at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3924)
System.err:     at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:3641)
System.err:     at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4194)
System.err:     at com.telerik.widget.list.RadListView.onLayout(RadListView.java:598)
System.err:     at android.view.View.layout(View.java:20960)
System.err:     at android.view.ViewGroup.layout(ViewGroup.java:6279)
System.err:     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:325)
System.err:     at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
System.err:     at android.view.View.layout(View.java:20960)
System.err:     at android.view.ViewGroup.layout(ViewGroup.java:6279)
System.err:     at org.nativescript.widgets.CommonLayoutParams.layoutChild(CommonLayoutParams.java:222)
System.err:     at org.nativescript.widgets.GridLayout.onLayout(GridLayout.java:354)
System.err:     at android.view.View.layout(View.java:20960)
System.err:     at android.view.ViewGroup.layout(ViewGroup.java:6279)
System.err:     at android.widget.ListView.setupChild(ListView.java:2201)
System.err:     at android.widget.ListView.makeAndAddView(ListView.java:2085)
System.err:     at android.widget.ListView.fillDown(ListView.java:797)
System.err:     at android.widget.ListView.fillFromTop(ListView.java:865)
System.err:     at android.widget.ListView.layoutChildren(ListView.java:1816)
System.err:     at android.widget.AbsListView.onLayout(AbsListView.java:2249)
System.err:     at android.widget.HwAbsListView.onLayout(HwAbsListView.java:345)
System.err:     at android.view.View.layout(View.java:20960)
System.err:     at android.view.ViewGroup.layout(ViewGroup.java:6279)
System.err:     at org.nativescript.widgets.CommonLayoutParams.layoutChild(CommonLayoutParams.java:222)
System.err:     at org.nativescript.widgets.GridLayout.onLayout(GridLayout.java:354)
System.err:     at android.view.View.layout(View.java:20960)
System.err:     at android.view.ViewGroup.layout(ViewGroup.java:6279)
System.err:     at org.nativescript.widgets.CommonLayoutParams.layoutChild(CommonLayoutParams.java:222)
System.err:     at org.nativescript.widgets.GridLayout.onLayout(GridLayout.java:354)
System.err:     at android.view.View.layout(View.java:20960)
System.err:     at android.view.ViewGroup.layout(ViewGroup.java:6279)
System.err:     at org.nativescript.widgets.CommonLayoutParams.layoutChild(CommonLayoutParams.java:222)
System.err:     at org.nativescript.widgets.GridLayout.onLayout(GridLayout.java:354)
System.err:     at android.view.View.layout(View.java:20960)
System.err:     at android.view.ViewGroup.layout(ViewGroup.java:6279)
System.err:     at org.nativescript.widgets.CommonLayoutParams.layoutChild(CommonLayoutParams.java:222)
System.err:     at org.nativescript.widgets.ContentLayout.onLayout(ContentLayout.java:73)
System.err:     at android.view.View.layout(View.java:20960)
System.err:     at android.view.ViewGroup.layout(ViewGroup.java:6279)
System.err:     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:325)
System.err:     at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
System.err:     at android.view.View.layout(View.java:20960)
System.err:     at android.view.ViewGroup.layout(ViewGroup.java:6279)
System.err:     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1842)
System.err:     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1686)
System.err:     at android.widget.LinearLayout.onLayout(LinearLayout.java:1595)
System.err:     at android.view.View.layout(View.java:20960)
System.err:     at android.view.ViewGroup.layout(ViewGroup.java:6279)
System.err:     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:325)
System.err:     at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
System.err:     at android.view.View.layout(View.java:20960)
System.err:     at android.view.ViewGroup.layout(ViewGroup.java:6279)
System.err:     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1842)
System.err:     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1686)
System.err:     at android.widget.LinearLayout.onLayout(LinearLayout.java:1595)
System.err:     at android.view.View.layout(View.java:20960)
System.err:     at android.view.ViewGroup.layout(ViewGroup.java:6279)
System.err:     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:325)
System.err:     at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
System.err:     at com.android.internal.policy.DecorView.onLayout(DecorView.java:926)
System.err:     at android.view.View.layout(View.java:20960)
System.err:     at android.view.ViewGroup.layout(ViewGroup.java:6279)
System.err:     at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:3037)
System.err:     at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2545)
System.err:     at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1636)
System.err:     at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7946)
System.err:     at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1092)
System.err:     at android.view.Choreographer.doCallbacks(Choreographer.java:893)
System.err:     at android.view.Choreographer.doFrame(Choreographer.java:812)
System.err:     at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1078)
System.err:     at android.os.Handler.handleCallback(Handler.java:907)
System.err:     at android.os.Handler.dispatchMessage(Handler.java:105)
System.err:     at android.os.Looper.loop(Looper.java:216)
System.err:     at android.app.ActivityThread.main(ActivityThread.java:7625)
System.err:     at java.lang.reflect.Method.invoke(Native Method)
System.err:     at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:524)
System.err:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:987)
File change detected. Starting incremental webpack compilation...

This issue appear in new version

zbranzov commented 5 years ago

Possibly fixed in nativescript-ui-listview@7.0.5

mtenus commented 5 years ago

Possibly fixed in nativescript-ui-listview@7.0.5

Unfortunately, the issue was not solved :confused: I got an error like below, but it's still related to the earlier issue, which I've noticed and reported before. If I use VSC and debug my application with NativeScript's extension, it occurs each time but while I use an external terminal that happens occasionally (the same happens on a real device).

I use Linux/Ubuntu 18.04 and {N} v6.1.2. Under iOS, everything works well.

`System.err: StackTrace: System.err: java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid item position 5(offset:5).state:6 com.telerik.widget.list.RadListView{1bd4c32 VFED..... ......ID 0,0-1080,1557 #14}, adapter:com.telerik.widget.list.ListViewWrapperAdapter@39670a3, layout:androidx.recyclerview.widget.LinearLayoutManager@5fa6b00, context:com.tns.NativeScriptActivity@3041286 System.err: at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5923) System.err: at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5858) System.err: at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5854) System.err: at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2230) System.err: at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1557) System.err: at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1517) System.err: at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:612) System.err: at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3924) System.err: at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:3641) System.err: at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4194) System.err: at com.telerik.widget.list.RadListView.onLayout(RadListView.java:598) System.err: at android.view.View.layout(View.java:20672) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6194) System.err: at androidx.swiperefreshlayout.widget.SwipeRefreshLayout.onLayout(SwipeRefreshLayout.java:625) System.err: at android.view.View.layout(View.java:20672) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6194) System.err: at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) System.err: at android.widget.FrameLayout.onLayout(FrameLayout.java:261) System.err: at android.view.View.layout(View.java:20672) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6194) System.err: at org.nativescript.widgets.CommonLayoutParams.layoutChild(CommonLayoutParams.java:222) System.err: at org.nativescript.widgets.GridLayout.onLayout(GridLayout.java:354) System.err: at android.view.View.layout(View.java:20672) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6194) System.err: at org.nativescript.widgets.CommonLayoutParams.layoutChild(CommonLayoutParams.java:222) System.err: at org.nativescript.widgets.StackLayout.layoutVertical(StackLayout.java:178) System.err: at org.nativescript.widgets.StackLayout.onLayout(StackLayout.java:132) System.err: at android.view.View.layout(View.java:20672) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6194) System.err: at org.nativescript.widgets.CommonLayoutParams.layoutChild(CommonLayoutParams.java:222) System.err: at org.nativescript.widgets.GridLayout.onLayout(GridLayout.java:354) System.err: at android.view.View.layout(View.java:20672) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6194) System.err: at org.nativescript.widgets.CommonLayoutParams.layoutChild(CommonLayoutParams.java:222) System.err: at org.nativescript.widgets.ContentLayout.onLayout(ContentLayout.java:73)

System.err: at android.view.View.layout(View.java:20672)

System.err: at android.view.ViewGroup.layout(ViewGroup.java:6194)

System.err: at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)

System.err: at android.widget.FrameLayout.onLayout(FrameLayout.java:261) System.err: at android.view.View.layout(View.java:20672) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6194) System.err: at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) System.err: at android.widget.FrameLayout.onLayout(FrameLayout.java:261) System.err: at android.view.View.layout(View.java:20672) System.err: at android.view.ViewGroup.layout(ViewGroup.java:6194)

System.err: at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)

System.err: at android.widget.FrameLayout.onLayout(FrameLayout.java:261)

System.err: at android.view.View.layout(View.java:20672)

System.err: at android.view.ViewGroup.layout(ViewGroup.java:6194)

System.err: at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1812)

System.err: at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1656)

System.err: at android.widget.LinearLayout.onLayout(LinearLayout.java:1565)

System.err: at android.view.View.layout(View.java:20672)

System.err: at android.view.ViewGroup.layout(ViewGroup.java:6194)

System.err: at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)

System.err: at android.widget.FrameLayout.onLayout(FrameLayout.java:261)

System.err: at android.view.View.layout(View.java:20672)

System.err: at android.view.ViewGroup.layout(ViewGroup.java:6194)

System.err: at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1812)

System.err: at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1656)

System.err: at android.widget.LinearLayout.onLayout(LinearLayout.java:1565)

System.err: at android.view.View.layout(View.java:20672)

System.err: at android.view.ViewGroup.layout(ViewGroup.java:6194)

System.err: at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)

System.err: at android.widget.FrameLayout.onLayout(FrameLayout.java:261)

System.err: at com.android.internal.policy.DecorView.onLayout(DecorView.java:753)

System.err: at android.view.View.layout(View.java:20672)

System.err: at android.view.ViewGroup.layout(ViewGroup.java:6194)

System.err: at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2792)

System.err: at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2319)

System.err: at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1460)

System.err: at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7183)

System.err: at android.view.Choreographer$CallbackRecord.run(Choreographer.java:949)

System.err: at android.view.Choreographer.doCallbacks(Choreographer.java:761)

System.err: at android.view.Choreographer.doFrame(Choreographer.java:696)

System.err: at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:935) System.err: at android.os.Handler.handleCallback(Handler.java:873) System.err: at android.os.Handler.dispatchMessage(Handler.java:99)

System.err: at android.os.Looper.loop(Looper.java:193) System.err: at android.app.ActivityThread.main(ActivityThread.java:6669) System.err: at java.lang.reflect.Method.invoke(Native Method) System.err: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)`

VladimirAmiorkov commented 5 years ago

Hi @marast78 ,

Does that happen during debug sessions while the debugger is stopped at a row or ? If so can you give us step by step of where your place break points when that error occurs, also if you can let us know on which Android API you are observing this it would be of much help.

mtenus commented 5 years ago

Hi @VladimirAmiorkov, I've fixed my issue :) I've had wrong handled events of the listview. Now it works perfectly!

ShyshkovOleg commented 5 years ago

@marast78 @ Could you provide code example of wrong handled events? I have the same issue but could not catch them... Thank you in advance(DZIĘKUJĘ)....

mtenus commented 5 years ago

@ShyshkovOleg I got the issue only with onLoadMore, below my code

onLoadMoreItemsRequested(args: ListViewEventData) {
        let listView: RadListView = args.object;
        if(this.nextPage > this.currentPage && this.nextPage>1) {
            setTimeout(() => {
                this.pullItems(this.nextPage);
                listView.notifyLoadOnDemandFinished();
            }, 500);
            args.returnValue = true;
        } else {
            listView.notifyLoadOnDemandFinished(true);
            args.returnValue = false;
        }
    }

As you see I finish a loading process if no more items exists in my data or there was loaded first collection.