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ConcurrentModificationException #198

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DenysAliekhanovInveritasoft opened this issue Oct 21, 2020 · 0 comments
Open

ConcurrentModificationException #198

DenysAliekhanovInveritasoft opened this issue Oct 21, 2020 · 0 comments

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@DenysAliekhanovInveritasoft
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DenysAliekhanovInveritasoft commented Oct 21, 2020

Hello! We're using your library in the project. The project is in production and sometimes we get a crash on the crashlytics.
Could You help us with this crash?

Exception: java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.next(ArrayList.java:860)
at com.yarolegovich.discretescrollview.DiscreteScrollView.a(DiscreteScrollView.java:20)
at com.yarolegovich.discretescrollview.DiscreteScrollView.c(DiscreteScrollView.java:2)
at com.yarolegovich.discretescrollview.DiscreteScrollView$d.b(DiscreteScrollView.java:5)
at com.yarolegovich.discretescrollview.DiscreteScrollLayoutManager.g(DiscreteScrollLayoutManager.java:10)
at androidx.recyclerview.widget.RecyclerView.dispatchOnScrollStateChanged(RecyclerView.java:2)
at androidx.recyclerview.widget.RecyclerView.setScrollState(RecyclerView.java:4)
at androidx.recyclerview.widget.RecyclerView$ViewFlinger.run(RecyclerView.java:65)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:949)
at android.view.Choreographer.doCallbacks(Choreographer.java:761)
at android.view.Choreographer.doFrame(Choreographer.java:693)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:935)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6912)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:860)

There are two collections which are not synchronized
private List scrollStateChangeListeners;
private List onItemChangedListeners;

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