我在日志中收到此异常 -
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)
我收到了这个错误 -
View view = recycler.getViewForPosition(position);
这里，在这个自定义LinearLayoutManager的方法 -
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);
}
}
以前，它运作良好。 我最近将targetSdkVersion更改为23（Marshmallow），以及支持lib的版本。可能是出于同样原因的问题。
请指导我，如何解决这个问题。
答案 0 :(得分：14)
我遇到同样的问题，我找到了解决问题的更好方法。
在自定义LayoutManager的构造函数中调用setAutoMeasureEnabled(false);。
答案 1 :(得分：2)
终于解决了：）
更换
compile＆＃39; com.android.support：recyclerview-v7：23.2.1＆＃39;
到
compile＆＃39; com.android.support：recyclerview-v7：22。+＆＃39;
的工作。
不确定，这是完美的解决方案，但它对我有用。