ArrayIndexOutOfBoundsException with GONE visibility view

[jeiea]

• I have searched existing issues and confirmed this is not a duplicate

Issues

Flexbox layout manager throws ArrayIndexOutOfBoundsException.

2018-08-25 22:21:41.350 10869-10869/com.github.jeiea.flexboxbugreport E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.github.jeiea.flexboxbugreport, PID: 10869
    java.lang.ArrayIndexOutOfBoundsException: length=10; index=-1
        at java.util.ArrayList.get(ArrayList.java:439)
        at com.google.android.flexbox.FlexboxHelper.determineMainSize(FlexboxHelper.java:972)
        at com.google.android.flexbox.FlexboxLayoutManager.updateFlexLines(FlexboxLayoutManager.java:977)
        at com.google.android.flexbox.FlexboxLayoutManager.onLayoutChildren(FlexboxLayoutManager.java:731)
        at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3812)
        at android.support.v7.widget.RecyclerView.onMeasure(RecyclerView.java:3225)
        at android.view.View.measure(View.java:22071)
        at android.support.constraint.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:1212)
        at android.support.constraint.ConstraintLayout.onMeasure(ConstraintLayout.java:1552)
        at android.view.View.measure(View.java:22071)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6602)
        at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
        at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:141)
        at android.view.View.measure(View.java:22071)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6602)
        at android.support.v7.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:400)
        at android.view.View.measure(View.java:22071)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6602)
        at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
        at android.view.View.measure(View.java:22071)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6602)
        at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1514)
        at android.widget.LinearLayout.measureVertical(LinearLayout.java:806)
        at android.widget.LinearLayout.onMeasure(LinearLayout.java:685)
        at android.view.View.measure(View.java:22071)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6602)
        at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
        at com.android.internal.policy.DecorView.onMeasure(DecorView.java:724)
        at android.view.View.measure(View.java:22071)
        at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2422)
        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2167)
        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1392)
        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6752)
        at android.view.Choreographer$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$FrameDisplayEventReceiver.run(Choreographer.java:897)
        at android.os.Handler.handleCallback(Handler.java:790)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6494)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

Steps to reproduce

1. Build and run uploaded project
2. It will crash after MainActivity.onCreate()
3. Uncommenting this line makes the exception not thrown.

Expected behavior

Hiding the first View. At least not ArrayIndexOutOfBoundsException.

Version of the flexbox library

1.0.0

[Mran]

YEAH!!.Same bug with you.And I Just find the reason.HAHA

[jeiea]

What's that?

[Mran]

Just like your demo lib show

[GuoLiangjun123]

how to solve this problems

[DrHowdyDoo]

Same problem 😑
Any solution ??