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

RecyclerView异常解析
最新推荐文章于 2023-07-12 12:00:03 发布
最新推荐文章于 2023-07-12 12:00:03 发布
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分类专栏： Android 文章标签： java.lang.IndexOutOf
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本文链接：https://blog.youkuaiyun.com/yuerliang/article/details/77979980
本文分析了Android应用中RecyclerView出现IndexOutOfBoundsException异常的原因及堆栈跟踪。此问题发生在尝试获取RecyclerView中不存在的位置项时，涉及多种布局管理和测量过程。

09-14 14:23:06.531 14875-14875/com.moreunion.zhenghao E/AndroidRuntime: FATAL EXCEPTION: main
                                                                        Process: com.moreunion.zhenghao, PID: 14875
                                                                        java.lang.IndexOutOfBoundsException: Invalid item position 0(0). Item count:0
                                                                            at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5508)
                                                                            at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5482)
                                                                            at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5478)
                                                                            at com.example.yilibrary.view.RecycleView.KRecycleView$2.onMeasure(KRecycleView.java:68)
                                                                            at android.support.v7.widget.RecyclerView.onMeasure(RecyclerView.java:3056)
                                                                            at com.example.yilibrary.view.RecycleView.KRecycleView.onMeasure(KRecycleView.java:143)
                                                                            at android.view.View.measure(View.java:19913)
                                                                            at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6139)
                                                                            at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1485)
                                                                            at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1134)
                                                                            at android.widget.LinearLayout.onMeasure(LinearLayout.java:659)
                                                                            at android.view.View.measure(View.java:19913)
                                                                            at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6139)
                                                                            at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1485)
                                                                            at android.widget.LinearLayout.measureVertical(LinearLayout.java:775)
                                                                            at android.widget.LinearLayout.onMeasure(LinearLayout.java:657)
                                                                            at android.view.View.measure(View.java:19913)
                                                                            at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6139)
                                                                            at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1485)
                                                                            at android.widget.LinearLayout.measureVertical(LinearLayout.java:775)
                                                                            at android.widget.LinearLayout.onMeasure(LinearLayout.java:657)
                                                                            at android.view.View.measure(View.java:19913)
                                                                            at android.support.v7.widget.RecyclerView$LayoutManager.measureChildWithMargins(RecyclerView.java:8682)
                                                                            at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1568)
                                                                            at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1502)
                                                                            at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:595)
                                                                            at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3625)
                                                                            at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3354)
                                                                            at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3886)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:325)
                                                                            at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.support.v4.widget.SwipeRefreshLayout.onLayout(SwipeRefreshLayout.java:614)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1762)
                                                                            at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1606)
                                                                            at android.widget.LinearLayout.onLayout(LinearLayout.java:1515)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at com.example.yilibrary.view.improvement.ImPullLoadMoreRefreshLayout.onLayout(ImPullLoadMoreRefreshLayout.java:588)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:325)
                                                                            at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.support.v4.view.ViewPager.onLayout(ViewPager.java:1766)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1762)
                                                                            at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1606)
09-14 14:23:06.532 14875-14875/com.moreunion.zhenghao E/AndroidRuntime:     at android.widget.LinearLayout.onLayout(LinearLayout.java:1515)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.support.v4.view.ViewPager.onLayout(ViewPager.java:1766)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1762)
                                                                            at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1606)
                                                                            at android.widget.LinearLayout.onLayout(LinearLayout.java:1515)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1762)
                                                                            at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1606)
                                                                            at android.widget.LinearLayout.onLayout(LinearLayout.java:1515)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:325)
                                                                            at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1762)
                                                                            at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1606)
                                                                            at android.widget.LinearLayout.onLayout(LinearLayout.java:1515)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:325)
                                                                            at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1762)
                                                                            at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1606)
                                                                            at android.widget.LinearLayout.onLayout(LinearLayout.java:1515)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:325)
                                                                            at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
                                                                            at com.android.internal.policy.DecorView.onLayout(DecorView.java:774)
                                                                            at android.view.View.layout(View.java:17684)
                                                                            at android.view.ViewGroup.layout(ViewGroup.java:5631)
                                                                            at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2511)
                                                                            at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2226)
                                                                            at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1364)
                                                                            at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6757)
                                                                            at android.view.Choreographer$CallbackRecord.run(Choreographer.java:923)
                                                                            at android.view.Choreographer.doCallbacks(Choreographer.java:735)
                                                                            at android.view.Choreographer.doFrame(Choreographer.java:667)
                                                                            at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:909)
                                                                            at android.os.Handler.handleCallback(Handler.java:755)
                                                                            at android.os.Handler.dispatchMessage(Handler.java:95)
                                                                            at android.os.Looper.loop(Looper.java:156)
                                                                            at android.app.ActivityThread.main(ActivityThread.java:6524)
                                                                            at java.lang.reflect.Method.invoke(Native Method)
                                                                            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:941)
                                                                            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:831)



问题代码

LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getContext()) {
    @Override
    public boolean canScrollHorizontally() {
        return false;
    }

    @Override
    public void onMeasure(Recycler recycler, State state, int widthSpec, int heightSpec) {
        View view = recycler.getViewForPosition(0);
        if (view != null) {
            measureChild(view, widthSpec, heightSpec);
            int measuredWidth = MeasureSpec.getSize(widthSpec);
            int measuredHeight = view.getMeasuredHeight();
            setMeasuredDimension(measuredWidth, measuredHeight);
        }
    }
};

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