King King - 1 month ago 8
Android Question

Android - java.lang.IndexOutOfBoundsException: Invalid item position 0(0). Item count:0

I am getting this exception in my log -

java.lang.IndexOutOfBoundsException: Invalid item position 0(0). Item count:0
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4622)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4617)
at com.jivemap.app.CustomizedViews.MyLinearLayoutManager.measureScrapChild(MyLinearLayoutManager.java:66)
at com.jivemap.app.CustomizedViews.MyLinearLayoutManager.onMeasure(MyLinearLayoutManager.java:30)
at android.support.v7.widget.RecyclerView.onMeasure(RecyclerView.java:2614)
at android.view.View.measure(View.java:15318)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4816)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1413)
at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1061)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:599)
at android.view.View.measure(View.java:15318)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4816)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1413)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:704)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:597)
at android.view.View.measure(View.java:15318)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4816)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1413)
at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1061)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:599)
at android.view.View.measure(View.java:15318)
at android.widget.ListView.setupChild(ListView.java:1849)
at android.widget.ListView.makeAndAddView(ListView.java:1764)
at android.widget.ListView.fillSpecific(ListView.java:1320)
at android.widget.ListView.layoutChildren(ListView.java:1635)
at android.widget.AbsListView.onLayout(AbsListView.java:2141)
at android.view.View.layout(View.java:13874)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.support.v4.widget.SwipeRefreshLayout.onLayout(SwipeRefreshLayout.java:596)
at android.view.View.layout(View.java:13874)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.support.v4.view.ViewPager.onLayout(ViewPager.java:1695)
at android.view.View.layout(View.java:13874)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1672)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1530)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1443)
at android.view.View.layout(View.java:13874)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:13874)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1672)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1530)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1443)
at android.view.View.layout(View.java:13874)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:13874)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1672)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1530)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1443)
at android.view.View.layout(View.java:13874)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:13874)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:13874)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)


I am getting this error on the line -

View view = recycler.getViewForPosition(position);


Here, in this method of custom LinearLayoutManager -

private void measureScrapChild(RecyclerView.Recycler recycler, int position, int widthSpec,
int heightSpec, int[] measuredDimension) {



View view = recycler.getViewForPosition(position);
if (view != null) {
RecyclerView.LayoutParams p = (RecyclerView.LayoutParams) view.getLayoutParams();
int childWidthSpec = ViewGroup.getChildMeasureSpec(widthSpec,
getPaddingLeft() + getPaddingRight(), p.width);
int childHeightSpec = ViewGroup.getChildMeasureSpec(heightSpec,
getPaddingTop() + getPaddingBottom(), p.height);
view.measure(childWidthSpec, childHeightSpec);
measuredDimension[0] = view.getMeasuredWidth() + p.leftMargin + p.rightMargin;
measuredDimension[1] = view.getMeasuredHeight() + p.bottomMargin + p.topMargin;
recycler.recycleView(view);

}
}


Previously, it was working well.
I recently changed the targetSdkVersion to 23 (Marshmallow), and as well as the versions of support lib. May be the issue is for the same reason.

Please guide me, how to fix this.

Answer

I meet the same problem, and I find a better way to solve it.

call setAutoMeasureEnabled(false); in the constructor of your custom LayoutManager.