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

我刚刚解决了同样的问题。我有一个RecyclerView。设置setHasStableIds(true)以避免项目闪烁的适配器。

我在getItemId()中使用了一个可复制的字段(我的模型没有id字段):

override fun getItemId(position: Int): Long {
    // Error-prone due to possibly duplicate name.
    return contacts[position].name.hashCode().toLong()
}

getItemId()应该为每个项目返回一个唯一的id，所以解决方案是这样做:

override fun getItemId(position: Int): Long {
    // Contact's phone is unique, so I use it instead.
    return contacts[position].phone.hashCode().toLong()
}

2020-12-07 04:52:52

其他回答

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

我也遇到过同样的情况。在你清理你的收藏之前，通过添加代码来解决这个问题。

mRecyclerView.getRecycledViewPool () .clear ();

2017-01-22 00:39:42

在我的例子中，我在一个非ui线程中更新项目并调用notifyDataSetChanged。大多数时候它是有效的，但当大量变化迅速发生时，它就会崩溃。当我这样做的时候，基本上

activity.runOnUiThread(new Runnable() {
    @Override
    public void run() {
        changeData();
        notifyDataSetChanged();
    }
});

然后它停止了崩溃。

2017-03-24 17:20:53

更新RecyclerView到最新的1.2.1版本。奇迹发生了!不能再打破我的应用程序:) 所以. .尝试用gradle文件中的最新版本号替换旧版本号

dependencies {
    ...
    // RecyclerView
    def recyclerview_version = "1.2.1"
    implementation "androidx.recyclerview:recyclerview:$recyclerview_version"
}

2021-06-10 22:25:48

我也有过这样的错误:

原因:我试图从异步任务更新一个回收器视图，同时试图获得旧的已删除的viewHolders;

代码:我在按下按钮时生成数据，逻辑如下

清除回收器视图中的最后一项调用异步任务生成数据更新Recycler视图和NotifyDataSetChanged

问题:每当我快速滚动之前生成我的数据我得到

不一致。无效的视图持有者适配器positionViewHolder java.lang.IndexOutOfBoundsException:检测到不一致。无效项位置20(偏移量:2).state:3

解决方案:而不是在生成我的数据之前清除RecyclerView，我而是离开它，然后用新数据替换它，调用NotifyDatasetChanged，如下所示;

       @Override
        protected void onPostExecute(List<Objects> o) {
            super.onPostExecute(o);
            recyclerViewAdapter.setList(o);
            mProgressBar.setVisibility(View.GONE);
            mRecyclerView.setVisibility(View.VISIBLE);
        }

2017-10-01 12:42:30

RecyclerView:检测到不一致。无效项位置

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