Crash after scrolling up a few times and then back down

[atroutt]

I had load more messages as it is in the sample code (loads 50 more each time) and after scrolling up a few times when I go to scroll back down I sometimes get a crash.

Here's the error:
E/AndroidRuntime: FATAL EXCEPTION: main Process: com.audreytroutt.android.androidbeginnerchat, PID: 1103 java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid view holder adapter positionViewHolder{1c2ac73 position=154 id=-1, oldPos=4, pLpos:4 scrap [attachedScrap] tmpDetached no parent} at android.support.v7.widget.RecyclerView$Recycler.validateViewHolderForOffsetPosition(RecyclerView.java:4505) at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4636) at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4617) at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1994) at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1390) at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1353) at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:549) at android.support.v7.widget.RecyclerView.dispatchLayoutStep1(RecyclerView.java:2979) at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2904) at android.support.v7.widget.RecyclerView.consumePendingUpdateOperations(RecyclerView.java:1482) at android.support.v7.widget.RecyclerView.scrollByInternal(RecyclerView.java:1519) at android.support.v7.widget.RecyclerView.onTouchEvent(RecyclerView.java:2486) at android.view.View.dispatchTouchEvent(View.java:9297) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2549) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2240) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2555) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2555) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2555) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2555) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2555) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2555) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2555) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2555) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254) at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2555) at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254) at com.android.internal.policy.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2403) at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1737) at android.app.Activity.dispatchTouchEvent(Activity.java:2769) at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:60) at com.android.internal.policy.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2364) at android.view.View.dispatchPointerEvent(View.java:9517) at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4242) at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4108) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3654) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3707) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3673) at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3799) at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3681) at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3856) at android.vi

[MatthewTPage]

I messed around with this area of the code a lot today. I can't replicate the error, so let's consider it solved for now.