divide by zero

[eslam2010011]

my code

adapter= new MessagingAdapter(messagesList,getActivity(), databaseHelper.nameUser(),usersList ); //rvListMessage.setHasFixedSize(true); mSkidRightLayoutManager = new SkidRightLayoutManager(1.5f, 0.85f); rvListMessage.setLayoutManager(mSkidRightLayoutManager); rvListMessage.setAdapter(adapter);

---

java.lang.ArithmeticException: divide by zero at com.dingmouren.layoutmanagergroup.skidright.SkidRightLayoutManager.fill(SkidRightLayoutManager.java:77) at com.dingmouren.layoutmanagergroup.skidright.SkidRightLayoutManager.onLayoutChildren(SkidRightLayoutManager.java:73) at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3812) at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3529) at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:4082) at android.view.View.layout(View.java:17778) at android.view.ViewGroup.layout(ViewGroup.java:5575) at android.support.design.widget.CoordinatorLayout.layoutChild(CoordinatorLayout.java:1191) at android.support.design.widget.CoordinatorLayout.onLayoutChild(CoordinatorLayout.java:876) at android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:895) at android.view.View.layout(View.java:17778) at android.view.ViewGroup.layout(ViewGroup.java:5575) at android.support.v4.widget.SwipeRefreshLayout.onLayout(SwipeRefreshLayout.java:606) at android.view.View.layout(View.java:17778) at android.view.ViewGroup.layout(ViewGroup.java:5575) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) at android.widget.FrameLayout.onLayout(FrameLayout.java:261) at android.view.View.layout(View.java:17778) at android.view.ViewGroup.layout(ViewGroup.java:5575) at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1079) at android.view.View.layout(View.java:17778) at android.view.ViewGroup.layout(ViewGroup.java:5575) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) at android.widget.FrameLayout.onLayout(FrameLayout.java:261) at android.view.View.layout(View.java:17778) at android.view.ViewGroup.layout(ViewGroup.java:5575) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585) at android.widget.LinearLayout.onLayout(LinearLayout.java:1494) at android.view.View.layout(View.java:17778) at android.view.ViewGroup.layout(ViewGroup.java:5575) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) at android.widget.FrameLayout.onLayout(FrameLayout.java:261) at android.view.View.layout(View.java:17778) at android.view.ViewGroup.layout(ViewGroup.java:5575) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585) at android.widget.LinearLayout.onLayout(LinearLayout.java:1494) at android.view.View.layout(View.java:17778) at android.view.ViewGroup.layout(ViewGroup.java:5575) 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:727) at android.view.View.layout(View.java:17778) at android.view.ViewGroup.layout(ViewGroup.java:5575) at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2353) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2075) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1261) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6345) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:874) at android.view.Choreographer.doCallbacks(Choreographer.java:686) at android.view.Choreographer.doFrame(Choreographer.java:621) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:860) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6125) at java.lang.reflect.Method.invoke(Method.java:-2) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:893) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:783)

[renygit]

源码中：@Override public void onLayoutChildren(RecyclerView.Recycler recycler, RecyclerView.State state) { if (state.getItemCount() == 0 || state.isPreLayout()) return; removeAndRecycleAllViews(recycler); if (!mHasChild) { mItemViewHeight = getVerticalSpace(); mItemViewWidth = (int) (mItemViewHeight / mItemHeightWidthRatio); mHasChild = true; } mItemCount = getItemCount(); mScrollOffset = makeScrollOffsetWithinRange(mScrollOffset); fill(recycler); }

关键位置在mItemViewHeight = getVerticalSpace(); 这里是直接获取RecyclerView的高度，目测你的RecyclerView写成wrap_content了，取到的值为0就出问题了，你要么改源码，要么改RecyclerView的高度

[cybkw]

如果是recycleView嵌套好像也报这个而且目前没有解决办法啊

[AtifSayings]

any solution(happening if recycler view has 0 items)?

FATAL EXCEPTION: main Process: com.aisar.videodownloader, PID: 5723 java.lang.ArithmeticException: divide by zero at com.dingmouren.layoutmanagergroup.skidright.SkidRightLayoutManager.fill(SkidRightLayoutManager.java:77) at com.dingmouren.layoutmanagergroup.skidright.SkidRightLayoutManager.scrollHorizontallyBy(SkidRightLayoutManager.java:163) at androidx.recyclerview.widget.RecyclerView.scrollStep(RecyclerView.java:1829) at androidx.recyclerview.widget.RecyclerView.scrollByInternal(RecyclerView.java:1927) at androidx.recyclerview.widget.RecyclerView.onTouchEvent(RecyclerView.java:3187) at android.view.View.dispatchTouchEvent(View.java:10023) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2626) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2307) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321) at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:413) at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1808) at android.app.Activity.dispatchTouchEvent(Activity.java:3061) at androidx.appcompat.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:69) at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:375) at android.view.View.dispatchPointerEvent(View.java:10243) at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4438) at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4306) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3853) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3906) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3872) at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3999) at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3880) at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4056) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3853) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3906) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3872) at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3880) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3853) at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:6246) at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:6220) at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:6181) at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6349) at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185) at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents(Native Method) at android.view.InputEventReceiver.consumeBatchedInputEvents(InputEventReceiver.java:176) at android.view.ViewRootImpl.doConsumeBatchedInput(ViewRootImpl.java:6320)