java - Android: ArithmeticException in StaggeredGridLayoutManager -


my app works fine android versions. but, in crashlytics , in devices, have crash: "java.lang.arithmeticexception: divide zero". (if not always) in android 4.x.

i have staggeredgridlayoutmanager in recyclerview (superrecyclerview).

stack trace:

fatal exception: java.lang.arithmeticexception: divide 0    @ android.support.v7.widget.staggeredgridlayoutmanager.updatemeasurespecs(staggeredgridlayoutmanager.java:922)    @ android.support.v7.widget.staggeredgridlayoutmanager.onlayoutchildren(staggeredgridlayoutmanager.java:665)    @ android.support.v7.widget.staggeredgridlayoutmanager.onlayoutchildren(staggeredgridlayoutmanager.java:600)    @ android.support.v7.widget.recyclerview.dispatchlayoutstep2(recyclerview.java:3374)    @ android.support.v7.widget.recyclerview.dispatchlayout(recyclerview.java:3183)    @ android.support.v7.widget.recyclerview.onlayout(recyclerview.java:3627)    @ android.view.view.layout(view.java:14102)    @ android.view.viewgroup.layout(viewgroup.java:4662)    @ android.support.v4.widget.swiperefreshlayout.onlayout(swiperefreshlayout.java:630)    @ android.view.view.layout(view.java:14102)    @ android.view.viewgroup.layout(viewgroup.java:4662)    @ android.widget.relativelayout.onlayout(relativelayout.java:948)    @ android.view.view.layout(view.java:14102)    @ android.view.viewgroup.layout(viewgroup.java:4662)    @ android.widget.framelayout.onlayout(framelayout.java:448)    @ android.view.view.layout(view.java:14102)    @ android.view.viewgroup.layout(viewgroup.java:4662)    @ android.support.design.widget.coordinatorlayout.layoutchild(coordinatorlayout.java:1142)    @ android.support.design.widget.coordinatorlayout.onlayoutchild(coordinatorlayout.java:836)    @ android.support.design.widget.coordinatorlayout.onlayout(coordinatorlayout.java:850)    @ android.view.view.layout(view.java:14102)    @ android.view.viewgroup.layout(viewgroup.java:4662)    @ android.support.v4.view.viewpager.onlayout(viewpager.java:1799)    @ android.view.view.layout(view.java:14102)    @ android.view.viewgroup.layout(viewgroup.java:4662)    @ android.widget.relativelayout.onlayout(relativelayout.java:948)    @ android.view.view.layout(view.java:14102)    @ android.view.viewgroup.layout(viewgroup.java:4662)    @ android.widget.framelayout.onlayout(framelayout.java:448)    @ android.view.view.layout(view.java:14102)    @ android.view.viewgroup.layout(viewgroup.java:4662)    @ android.widget.linearlayout.setchildframe(linearlayout.java:1655)    @ android.widget.linearlayout.layoutvertical(linearlayout.java:1513)    @ android.widget.linearlayout.onlayout(linearlayout.java:1426)    @ android.view.view.layout(view.java:14102)    @ android.view.viewgroup.layout(viewgroup.java:4662)    @ android.widget.framelayout.onlayout(framelayout.java:448)    @ android.view.view.layout(view.java:14102)    @ android.view.viewgroup.layout(viewgroup.java:4662)    @ android.widget.linearlayout.setchildframe(linearlayout.java:1655)    @ android.widget.linearlayout.layoutvertical(linearlayout.java:1513)    @ android.widget.linearlayout.onlayout(linearlayout.java:1426)    @ android.view.view.layout(view.java:14102)    @ android.view.viewgroup.layout(viewgroup.java:4662)    @ android.widget.framelayout.onlayout(framelayout.java:448)    @ android.view.view.layout(view.java:14102)    @ android.view.viewgroup.layout(viewgroup.java:4662)    @ android.view.viewrootimpl.performlayout(viewrootimpl.java:2019)    @ android.view.viewrootimpl.performtraversals(viewrootimpl.java:1840)    @ android.view.viewrootimpl.dotraversal(viewrootimpl.java:1135)    @ android.view.viewrootimpl$traversalrunnable.run(viewrootimpl.java:4579)    @ android.view.choreographer$callbackrecord.run(choreographer.java:725)    @ android.view.choreographer.docallbacks(choreographer.java:555)    @ android.view.choreographer.doframe(choreographer.java:525)    @ android.view.choreographer$framedisplayeventreceiver.run(choreographer.java:711)    @ android.os.handler.handlecallback(handler.java:615)    @ android.os.handler.dispatchmessage(handler.java:92)    @ android.os.looper.loop(looper.java:137)    @ android.app.activitythread.main(activitythread.java:4935)    @ java.lang.reflect.method.invokenative(method.java)    @ java.lang.reflect.method.invoke(method.java:511)    @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:1038)    @ com.android.internal.os.zygoteinit.main(zygoteinit.java:805)    @ dalvik.system.nativestart.main(nativestart.java)

i don't know kind of information needed approach problem, please ask me whatever need can update question.

saw it, too, on android 5 , 7 well. checked code , apparently crashes when mspancount 0. unlike gridlayoutmanager, staggeredgridlayoutmanager's setspancount doesn't check whether it's 1 or greater, , crashes later. in case, span count 0 because made depend on screen size, seems 0 in rare cases.


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