java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
at java.util.ArrayList.get(ArrayList.java:304)
at android.support.v7.widget.StaggeredGridLayoutManager$Span.calculateCachedStart(StaggeredGridLayoutManager.java:2357)
at android.support.v7.widget.StaggeredGridLayoutManager$Span.getStartLine(StaggeredGridLayoutManager.java:2374)
at android.support.v7.widget.StaggeredGridLayoutManager.checkSpanForGap(StaggeredGridLayoutManager.java:396)
at android.support.v7.widget.StaggeredGridLayoutManager.hasGapsToFix(StaggeredGridLayoutManager.java:345)
at android.support.v7.widget.StaggeredGridLayoutManager.checkForGaps(StaggeredGridLayoutManager.java:272)
at android.support.v7.widget.StaggeredGridLayoutManager.onScrollStateChanged(StaggeredGridLayoutManager.java:307)
at android.support.v7.widget.RecyclerView.dispatchOnScrollStateChanged(RecyclerView.java:3977)
at android.support.v7.widget.RecyclerView.setScrollState(RecyclerView.java:1219)
at android.support.v7.widget.RecyclerView.access$3900(RecyclerView.java:147)
at android.support.v7.widget.RecyclerView$ViewFlinger.run(RecyclerView.java:4128)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
at android.view.Choreographer.doCallbacks(Choreographer.java:562)
at android.view.Choreographer.doFrame(Choreographer.java:531)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5041)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:817)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)
at dalvik.system.NativeStart.main(Native Method)