RecyclerView是Android-support-v7-21版本中新增的一個Widget菇篡，RecyclerView在刷新數(shù)據(jù)的時候會出現(xiàn)以下異常：

java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid view holder adapter positionViewHolder{431a7450 position=1 id=-1, oldPos=-1, pLpos:-1 scrap [attachedScrap] tmpDetached no parent}  
    at android.support.v7.widget.RecyclerView$Recycler.validateViewHolderForOffsetPosition(RecyclerView.java:4251)  
    at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4382)  
    at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4363)  
    at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1961)  
    at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1370)  
    at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1333)  
    at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:562)  
    at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2900)  
    at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3071)  
    at android.view.View.layout(View.java:14828)  
    at android.view.ViewGroup.layout(ViewGroup.java:4631)  
    at android.support.v4.widget.SwipeRefreshLayout.onLayout(SwipeRefreshLayout.java:584)  
    at android.view.View.layout(View.java:14828)  
    at android.view.ViewGroup.layout(ViewGroup.java:4631)  
    at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)  
    at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)  
    at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)  
    at android.view.View.layout(View.java:14828)  
    at android.view.ViewGroup.layout(ViewGroup.java:4631)  
    at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)  
    at android.widget.FrameLayout.onLayout(FrameLayout.java:388)  
    at android.view.View.layout(View.java:14828)  
    at android.view.ViewGroup.layout(ViewGroup.java:4631)  
    at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)  
    at android.widget.FrameLayout.onLayout(FrameLayout.java:388)  
    at android.view.View.layout(View.java:14828)  
    at android.view.ViewGroup.layout(ViewGroup.java:4631)  
    at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1055)  
    at android.view.View.layout(View.java:14828)  
    at android.view.ViewGroup.layout(ViewGroup.java:4631)  
    at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)  
    at android.widget.FrameLayout.onLayout(FrameLayout.java:388)  
    at android.view.View.layout(View.java:14828)  
    at android.view.ViewGroup.layout(ViewGroup.java:4631)  
    at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)  
    at android.widget.FrameLayout.onLayout(FrameLayout.java:388)  
    at android.view.View.layout(View.java:14828)  
    at android.view.ViewGroup.layout(ViewGroup.java:4631)  
    at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)  
    at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)  
    at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)  
    at android.view.View.layout(View.java:14828)  
    at android.view.ViewGroup.layout(ViewGroup.java:4631)  
    at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)  
    at android.widget.FrameLayout.onLayout(FrameLayout.java:388)  
    at android.view.View.layout(View.java:14828)  
    at android.view.ViewGroup.layout(ViewGroup.java:4631)  
    at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)  
    at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)  
    at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)  
    at android.view.View.layout(View.java:14828)  
    at android.view.ViewGroup.layout(ViewGroup.java:4631)  
    at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)  
    at android.widget.FrameLayout.onLayout(FrameLayout.java:388)  
    at android.view.View.layout(View.java:14828)  
    at android.view.ViewGroup.layout(ViewGroup.java:4631)  
    at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2074)  
    at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1831)  
    at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1087)  
    at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5696)  
    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)  
    at android.view.Choreographer.doCallbacks(Choreographer.java:574)  
    at android.view.Choreographer.doFrame(Choreographer.java:544)  
    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)  
    at android.os.Handler.handleCallback(Handler.java:733)  
    at android.os.Handler.dispatchMessage(Handler.java:95)  
    at android.os.Looper.loop(Looper.java:136)  
    at android.app.ActivityThread.main(ActivityThread.java:5016)  
    at java.lang.reflect.Method.invokeNative(Native Method)  
    at java.lang.reflect.Method.invoke(Method.java:515)  
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:792)  
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:608)  
    at dalvik.system.NativeStart.main(Native Method)  

大家看這個代碼拯杠，只是并沒有報到我們自己的代碼里面來速和，在底層就崩潰了圆雁，在app層面并沒有地淀，彈出一個框偿渡，說應(yīng)用程序已奔潰臼寄，而是直接就沒了，用戶感覺很奇怪溜宽。這種異常并不是很容易出現(xiàn)吉拳，而是偶爾出現(xiàn)，我的也是在后臺奔潰日志中适揉，發(fā)現(xiàn)了這種異常留攒，我們自己都不知道什么地方報錯的，搜索百度嫉嘀，發(fā)現(xiàn)有個鏈接的權(quán)重比較高炼邀，看的人也比較多：
http://drakeet.me/recyclerview-bug-indexoutofboundsexception-inconsistency-detected-invalid-item-position-solution?utm_source=tuicool&utm_medium=referral
但是，這篇文章寫得比較模糊剪侮，解決方案也只是給出一個代碼片段拭宁，我都不知道怎么加進去，之后我用google去搜索，發(fā)現(xiàn)這個問題很普遍杰标，很多都是偶爾出現(xiàn)兵怯，很難去重現(xiàn)他，終于在stackoverflow上找到了一個解決方法在旱，鏈接如下：

http://stackoverflow.com/questions/31759171/recyclerview-and-Java-lang-indexoutofboundsexception-inconsistency-detected-in

其實也不是什么解決方法，只是把這個異常捕獲了推掸，不讓他奔潰了桶蝎，這個問題的終極解決方案還是得讓google去修復(fù)。

1谅畅、創(chuàng)建一個類LinearLayoutManagerWrapper繼承LinearLayoutManager登渣，重寫onLayoutChildren方法

public class WrapContentLinearLayoutManager extends LinearLayoutManager {  
    public WrapContentLinearLayoutManager(Context context) {  
        super(context);  
    }  
  
    public WrapContentLinearLayoutManager(Context context, int orientation, boolean reverseLayout) {  
        super(context, orientation, reverseLayout);  
    }  
  
    public WrapContentLinearLayoutManager(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();  
        }  
    }  
}  

2、設(shè)置RecyclerView的布局管理為WrapContentLinearLayoutManager對象

mRecyclerView.setLayoutManager(new WrapContentLinearLayoutManager(this, LinearLayoutManager.VERTICAL, false));  

我經(jīng)過大量的測試毡泻，發(fā)現(xiàn)這個異常真的被catch了胜茧，沒有再出現(xiàn)這種崩潰的問題了，大功告成仇味，希望對大家有所幫助Ｉ胪纭！丹墨！