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frogermcs / InstaMaterial

Implementation of Instagram with Material Design (originally based on Emmanuel Pacamalan's concept)
Apache License 2.0
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java.lang.IndexOutOfBoundsException RecyclerView #25

Open stevendobrien opened 8 years ago

stevendobrien commented 8 years ago

Just downloaded this app, and deployed. I see Toolbar above and then this:

Android 4.0.3 device. compileSdkVersion 23 buildToolsVersion "23.0.2"

Device: SHV-E160S

02-06 23:58:07.109 13909-13909/io.github.froger.instamaterial E/AndroidRuntime: FATAL EXCEPTION: main java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid view holder adapter positionViewHolder{41933fb0 position=7 id=-1, oldPos=0, pLpos:0 scrap [attachedScrap] tmpDetached not recyclable(1) no parent} at android.support.v7.widget.RecyclerView$Recycler.validateViewHolderForOffsetPosition(RecyclerView.java:4251) at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4382) at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4363) at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1961) at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1370) at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1333) at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:562) at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2864) at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3071) at android.view.View.layout(View.java:11447) at android.view.ViewGroup.layout(ViewGroup.java:4224) at android.support.design.widget.CoordinatorLayout.layoutChild(CoordinatorLayout.java:1037) at android.support.design.widget.CoordinatorLayout.onLayoutChild(CoordinatorLayout.java:747) at android.support.design.widget.ViewOffsetBehavior.onLayoutChild(ViewOffsetBehavior.java:42) at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onLayoutChild(AppBarLayout.java:1156) at android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:760) at android.view.View.layout(View.java:11447) at android.view.ViewGroup.layout(ViewGroup.java:4224) at android.widget.RelativeLayout.onLayout(RelativeLayout.java:925) at android.view.View.layout(View.java:11447) at android.view.ViewGroup.layout(ViewGroup.java:4224) at android.widget.FrameLayout.onLayout(FrameLayout.java:431) at android.view.View.layout(View.java:11447) at android.view.ViewGroup.layout(ViewGroup.java:4224) at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:1043) at android.view.View.layout(View.java:11447) at android.view.ViewGroup.layout(ViewGroup.java:4224) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1634) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1492) at android.widget.LinearLayout.onLayout(LinearLayout.java:1405) at android.view.View.layout(View.java:11447) at android.view.ViewGroup.layout(ViewGroup.java:4224) at android.widget.FrameLayout.onLayout(FrameLayout.java:431) at android.view.View.layout(View.java:11447) at android.view.ViewGroup.layout(ViewGroup.java:4224) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1634) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1492) at android.widget.LinearLayout.onLayout(LinearLayout.java:1405) at android.view.View.layout(View.java:11447) at android.view.ViewGroup.layout(ViewGroup.java:4224) at android.widget.FrameLayout.onLayout(FrameLayout.java:431) at android.view.View.layout(View.java:11447) at android.view.ViewGroup.layout(ViewGroup.java:4224) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1634) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1492) at android.widget.LinearLayout.onLayout(LinearLayout.java:1405) at android.view.View.layout(View.java:11447) at android.view.ViewGroup.layout(ViewGroup.java:4224) at android.widget.FrameLayout.onLayout(FrameLayout.java:431) at android.view.View.layout(View.java:11447) at android.view.ViewGroup.layout(ViewGroup.java:4224) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1633) at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2590) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4512) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.

rohitpal440 commented 8 years ago

Hi! this kind of Problem arises when you are changing the dataset of adapter and performing scroll operation at same time. You can avoid this by blocking the scroll operation after required dataset is downloaded and adapter's dataset being updated. After that, you can unblock the scrolling operation for user.

yigit commented 6 years ago

changing adapter data source while RV is scrolling does not crash recyclerview. It happens if something is wrong in your events (e.g. you change the adapter from another thread or change it on the main thread but dispatch later).

yigit commented 6 years ago

also the exception clearly states that data is inconsistent (which happens when your adapter updates are inconsistent)

java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid view holder adapter positionViewHolder{41933fb0 position=7 id=-1, oldPos=0, pLpos:0 scrap [attachedScrap] tmpDetached not recyclable(1) no parent}
ranjeetscience commented 5 years ago

Then what is the solution to this problem?