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2024-02-08 05:00:07

RecyclerView:检测到不一致。无效项位置

我们的QA检测到一个错误:当旋转Android设备(Droid Turbo)时，发生了以下recyclerview相关的崩溃:

java.lang.IndexOutOfBoundsException: 不一致。无效项位置2(偏移量:2).state:3

对我来说，它看起来像一个内部错误在RecyclerView，因为我不能想到这是由我们的代码直接引起的任何方式…

有人遇到过这个问题吗?

解决方案是什么?

一个残酷的解决方法可能是在异常发生时捕获异常并从头重新创建RecyclverView实例，以避免留下损坏的状态。

但是，如果可能的话，我希望更好地理解这个问题(也许从根源上解决它)，而不是掩盖它。

这种细菌不容易繁殖，但一旦发生就会致命。

完整的堆栈跟踪:

W/dalvikvm( 7546): threadid=1: thread exiting with uncaught exception (group=0x41987d40)
    E/AndroidRuntime( 7546): FATAL EXCEPTION: main
    E/AndroidRuntime( 7546): Process: com.oblong.mezzedroid, PID: 7546
    E/AndroidRuntime( 7546): java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid item position 2(offset:2).state:3
    E/AndroidRuntime( 7546):    at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:3382)
    E/AndroidRuntime( 7546):    at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:3340)
    E/AndroidRuntime( 7546):    at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1810)
    E/AndroidRuntime( 7546):    at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1306)
    E/AndroidRuntime( 7546):    at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1269)
    E/AndroidRuntime( 7546):    at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:523)
    E/AndroidRuntime( 7546):    at org.liboid.recycler_view.RecyclerViewContainer$LiLinearLayoutManager.onLayoutChildren(RecyclerViewContainer.java:179)
    E/AndroidRuntime( 7546):    at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:1942)
    E/AndroidRuntime( 7546):    at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:2237)
    E/AndroidRuntime( 7546):    at org.liboid.recycler_view.LiRecyclerView.onLayout(LiRecyclerView.java:30)
    E/AndroidRuntime( 7546):    at android.view.View.layout(View.java:14946)
    E/AndroidRuntime( 7546):    at android.view.ViewGroup.layout(ViewGroup.java:4651)
    E/AndroidRuntime( 7546):    at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
    E/AndroidRuntime( 7546):    at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
    E/AndroidRuntime( 7546):    at android.view.View.layout(View.java:14946)
    E/AndroidRuntime( 7546):    at android.view.ViewGroup.layout(ViewGroup.java:4651)
    E/AndroidRuntime( 7546):    at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
    E/AndroidRuntime( 7546):    at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
    E/AndroidRuntime( 7546):    at android.view.View.layout(View.java:14946)
    E/AndroidRuntime( 7546):    at android.view.ViewGroup.layout(ViewGroup.java:4651)
    E/AndroidRuntime( 7546):    at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
    E/AndroidRuntime( 7546):    at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
    E/AndroidRuntime( 7546):    at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
    E/AndroidRuntime( 7546):    at com.oblong.mezzedroid.workspace.content.bins.BinsContainerLayout.onLayout(BinsContainerLayout.java:22)
    E/AndroidRuntime( 7546):    at android.view.View.layout(View.java:14946)
    E/AndroidRuntime( 7546):    at android.view.ViewGroup.layout(ViewGroup.java:4651)
    E/AndroidRuntime( 7546):    at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
    E/AndroidRuntime( 7546):    at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
    E/AndroidRuntime( 7546):    at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
    E/AndroidRuntime( 7546):    at android.view.View.layout(View.java:14946)
    E/AndroidRuntime( 7546):    at android.view.ViewGroup.layout(ViewGroup.java:4651)
    E/AndroidRuntime( 7546):    at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
    E/AndroidRuntime( 7546):    at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
    E/AndroidRuntime( 7546):    at android.view.View.layout(View.java:14946)
    E/AndroidRuntime( 7546):    at android.view.ViewGroup.layout(ViewGroup.java:4651)
    E/AndroidRuntime( 7546):    at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
    E/AndroidRuntime( 7546):    at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
    E/AndroidRuntime( 7546):    at android.view.View.layout(View.java:14946)
    E/AndroidRuntime( 7546):    at android.view.ViewGroup.layout(ViewGroup.java:4651)
    E/AndroidRuntime( 7546):    at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
    E/AndroidRuntime( 7546):    at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
    E/AndroidRuntime( 7546):    at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
    E/AndroidRuntime( 7546):    at android.view.View.layout(View.java:14946)
    E/AndroidRuntime( 7546):    at android.view.ViewGroup.layout(ViewGroup.java:4651)
    E/AndroidRuntime( 7546):    at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
    E/AndroidRuntime( 7546):    at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
    E/AndroidRuntime( 7546):    at android.view.View.layout(View.java:14946)
    E/AndroidRuntime( 7546):    at android.view.ViewGroup.layout(ViewGroup.java:4651)
    E/AndroidRuntime( 7546):    at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
    E/AndroidRuntime( 7546):    at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
    E/AndroidRuntime( 7546):    at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
    E/AndroidRuntime( 7546):    at android.view.View.layout(View.java:14946)
    E/AndroidRuntime( 7546):    at android.view.ViewGroup.layout(ViewGroup.java:4651)
    E/AndroidRuntime( 7546):    at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
    E/AndroidRuntime( 7546):    at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
    E/AndroidRuntime( 7546):    at android.view.View.layout(View.java:14946)
    E/AndroidRuntime( 7546):    at android.view.ViewGroup.layout(ViewGroup.java:4651)
    E/AndroidRuntime( 7546):    at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2132)
    E/AndroidRuntime( 7546):    at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1872)
    E/AndroidRuntime( 7546):    at andro

当前回答

造成这次崩溃的一个可能原因是。

在recyclerview仍在滚动时重新加载数据。

因此，在重新加载数据之前，尝试recyclerview.stopScroll()。

2022-04-17 10:41:04

其他回答

我解决了这个问题，当它得到新数据时，一个接一个地添加项目。我在适配器内部使用这个函数。

public void add(Data item) {
        if(!params.contains(item){
           params.add(item);
           notifyItemInserted(getItemCount() - 1);
        }
    }
}
2016-02-16 15:26:12

使用notifyDataSetChanged()代替notifyItem…在这种情况下。

2015-09-12 06:13:15

Most of the answers are disabling animations or creating new copies of data which is an overkill in my opinion. They do work but they don't address the root cause of the issue. In my case it was due to using DiffUtils in a wrong way. In the areItemsTheSame(old, new) method I did not properly implement the equality check, that, in turn cased the adapter to be notified by notifyItemRangeInserted() even though the same number of items are in the new list. So pay close attention to how you implement the DiffUtils callbacks!

2020-04-22 11:20:59

我最近在使用新的Android架构组件时遇到了这种讨厌的堆栈跟踪。从本质上讲，我在ViewModel中有一个项目列表，由我的Fragment使用LiveData观察。当ViewModel发布数据的新值时，Fragment更新适配器，传入这些新的数据元素并通知适配器已经发生了变化。

不幸的是，当将新的数据元素传递给适配器时，我没有考虑到ViewModel和adapter都指向同一个对象引用!这意味着，如果我在ViewModel中更新数据并调用postValue()，就会有一个非常小的窗口，可以在其中更新数据，而适配器还没有收到通知!

我的修复是实例化一个新的副本的元素时，传递到适配器:

mList = new ArrayList<>（passedList）;

有了这个超级简单的修复，您可以确保您的适配器数据不会改变，直到您的适配器被通知。

2018-05-30 23:20:24

扩展LinearLayoutManager并捕获这个错误

public class NoCrashLinearLayoutManager extends LinearLayoutManager {

    public NoCrashLinearLayoutManager(Context context) {
        super(context);
    }

    public NoCrashLinearLayoutManager(Context context, int orientation, boolean reverseLayout) {
        super(context, orientation, reverseLayout);
    }

    public NoCrashLinearLayoutManager(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);
    }

    @Override
    public void onLayoutChildren(RecyclerView.Recycler recycler, RecyclerView.State state) {
        try {
            super.onLayoutChildren(recycler, state);
        } catch (IndexOutOfBoundsException e){
            e.printStackTrace();
        }
    }
}
2020-06-16 05:57:25

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