我们的质量检查人员已检测到一个错误：发生了以下与RecyclerView相关的崩溃：`
java.lang.IndexOutOfBoundsException：检测到不一致。无效 项目位置2（偏移：2）。状态：3
一种残酷的解决方法可能是在异常发生时捕获异常并从头开始重新创建RecyclverView实例，以避免陷入损坏状态。
但是，如果可能的话，我想更好地理解问题（也许从源头上解决它），而不是掩盖它。
该错误易于重现，滚动会继续快速导致此崩溃，但致命的情况是致命的。
我的唤醒代码是：
public class MoviesGridRecyclerViewDataAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
public static final int VIEW_ITEM = 1;
public static final int VIEW_PROG = -1;
private static final int FADE_DURATION = 500;
int pastVisiblesItems, visibleItemCount, totalItemCount;
private List<VideoEntity> dataList;
private FragmentActivity activity;
private int visibleThreshold = 1;
//private int lastVisibleItem, totalItemCount;
//private boolean loading = false;
private OnLoadMoreListener onLoadMoreListener;
private RecyclerView.OnScrollListener recyclerciewScrollListener;
private RecyclerView recyclerView;
private boolean followLargeItemOnDataRender;
private boolean loading = false;
private boolean isLiveChannel = false;
public MoviesGridRecyclerViewDataAdapter(FragmentActivity fragmentActivity, final List<VideoEntity> dataList, RecyclerView recycler, boolean followLargeItemOnOddData, boolean isLiveChannels) {
this.dataList = dataList;
this.activity = fragmentActivity;
this.followLargeItemOnDataRender = followLargeItemOnOddData;
this.recyclerView = recycler;
isLiveChannel = isLiveChannels;
Log.e("VideoGridRVDataAdapter", "True");
if (this.recyclerView.getLayoutManager() instanceof GridLayoutManager) {
final GridLayoutManager gridLayoutManager = (GridLayoutManager) this.recyclerView.getLayoutManager();
recyclerciewScrollListener = new RecyclerView.OnScrollListener() {
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
if (dy > 0) //check for scroll down
{
visibleItemCount = gridLayoutManager.getChildCount();
totalItemCount = gridLayoutManager.getItemCount();
pastVisiblesItems = gridLayoutManager.findFirstVisibleItemPosition();
if (!loading) {
if ((visibleItemCount + pastVisiblesItems) >= totalItemCount) {
loading = true;
if (onLoadMoreListener != null) {
onLoadMoreListener.onLoadMore(visibleItemCount + pastVisiblesItems);
}
}
}
}
}
};
this.recyclerView.addOnScrollListener(recyclerciewScrollListener);
}
}
public void notifyDataLoadingStartProgress() {
dataList.add(null);
notifyItemInserted(dataList.size() - 1);
}
public void notifyDataLoaded() {
dataList.remove(dataList.size() - 1);
notifyItemRemoved(dataList.size());
setLoaded();
}
public void resetItems(@NonNull List<VideoEntity> newDataSet) {
loading = false;
pastVisiblesItems = visibleItemCount = totalItemCount = 0;
dataList.clear();
addItems(newDataSet);
}
public void addItems(@NonNull List<VideoEntity> newDataSetItems) {
dataList.addAll(newDataSetItems);
postAndNotifyAdapter(new Handler());
}
public void addItem(VideoEntity item) {
if (!dataList.contains(item)) {
dataList.add(item);
notifyItemInserted(dataList.size() - 1);
}
}
public void removeItem(VideoEntity item) {
int indexOfItem = dataList.indexOf(item);
if (indexOfItem != -1) {
this.dataList.remove(indexOfItem);
notifyItemRemoved(indexOfItem);
}
}
private void postAndNotifyAdapter(final Handler handler) {
handler.post(new Runnable() {
@Override
public void run() {
if (!recyclerView.isComputingLayout()) {
try {
recyclerView.getRecycledViewPool().clear();
notifyDataSetChanged();
} catch (IndexOutOfBoundsException ex) {
}
} else {
postAndNotifyAdapter(handler);
}
}
});
}
public void destroy() {
this.recyclerView.removeOnScrollListener(recyclerciewScrollListener);
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
RecyclerView.ViewHolder vh;
View v;
if (viewType == VIEW_PROG) {
v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_progressbar, viewGroup, false);
vh = new ProgressViewHolder(v);
} else {
Integer layoutResourceId;
if (isLiveChannel) {
layoutResourceId = R.layout.item_video_grid_norma_hs_overfow_overdraw;
} else {
layoutResourceId = R.layout.item_video_linear_overdraw;
}
v = LayoutInflater.from(viewGroup.getContext()).inflate(layoutResourceId, viewGroup, false);
vh = new MoviesItemRowHolder(this, dataList, v, activity);
}
return vh;
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int i) {
if (holder instanceof MoviesItemRowHolder) {
VideoEntity singleItem = dataList.get(i);
((MoviesItemRowHolder) holder).bind(singleItem,dataList);
//setScaleAnimation(holder.itemView);
} else {
((ProgressViewHolder) holder).progressBar.setIndeterminate(true);
}
}
public boolean isLoading() {
return loading;
}
public void setLoaded() {
loading = false;
}
private void setFadeAnimation(View view) {
AlphaAnimation anim = new AlphaAnimation(0.0f, 1.0f);
anim.setDuration(FADE_DURATION);
view.startAnimation(anim);
}
private void setScaleAnimation(View view) {
ScaleAnimation anim = new ScaleAnimation(0.0f, 1.0f, 0.0f, 1.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
anim.setDuration(FADE_DURATION);
view.startAnimation(anim);
}
/**
* Return the view type of the item at <code>position</code> for the purposes
* of view recycling.
* <p/>
* <p>The default implementation of this method returns 0, making the assumption of
* a single view type for the adapter. Unlike ListView adapters, types need not
* be contiguous. Consider using id resources to uniquely identify item view types.
*
* @param position position to query
* @return integer value identifying the type of the view needed to represent the item at
* <code>position</code>. Type codes need not be contiguous.
*/
@Override
public int getItemViewType(int position) {
//return position;
return dataList.get(position) != null ? position : VIEW_PROG;
}
@Override
public int getItemCount() {
return (null != dataList ? dataList.size() : 0);
}
public void setOnLoadMoreListener(OnLoadMoreListener onLoadMoreListener) {
this.onLoadMoreListener = onLoadMoreListener;
}
public List<VideoEntity> getItems() {
return dataList;
}
}
请查看我的课程，让我知道发生了什么问题，当我快速滚动时，此崩溃发生在更少的设备中。
堆栈跟踪为：
Fatal Exception: java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid item position 17(offset:17).state:18 android.support.v7.widget.RecyclerView{4266ee78 VFED.... .F....ID 0,0-480,625 #7f0902db app:id/recycler_view_list}, adapter:com.tapmad.tapmadtv.f.e@425896c0, layout:com.tapmad.tapmadtv.WrapContentLinearLayoutManager@424092b0, context:com.tapmad.tapmadtv.activities.SectionMoreActivityHS@4244c478
at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline + 5923(RecyclerView.java:5923)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition + 5858(RecyclerView.java:5858)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition + 5854(RecyclerView.java:5854)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next + 2230(LinearLayoutManager.java:2230)
at android.support.v7.widget.GridLayoutManager.layoutChunk + 557(GridLayoutManager.java:557)
at android.support.v7.widget.LinearLayoutManager.fill + 1517(LinearLayoutManager.java:1517)
at android.support.v7.widget.LinearLayoutManager.scrollBy + 1331(LinearLayoutManager.java:1331)
at android.support.v7.widget.LinearLayoutManager.scrollVerticallyBy + 1075(LinearLayoutManager.java:1075)
at android.support.v7.widget.GridLayoutManager.scrollVerticallyBy + 382(GridLayoutManager.java:382)
at android.support.v7.widget.RecyclerView.scrollStep + 1832(RecyclerView.java:1832)
at android.support.v7.widget.RecyclerView$ViewFlinger.run + 5067(RecyclerView.java:5067)
at android.view.Choreographer$CallbackRecord.run + 791(Choreographer.java:791)
at android.view.Choreographer.doCallbacks + 591(Choreographer.java:591)
at android.view.Choreographer.doFrame + 560(Choreographer.java:560)
at android.view.Choreographer$FrameDisplayEventReceiver.run + 777(Choreographer.java:777)
at android.os.Handler.handleCallback + 725(Handler.java:725)
at android.os.Handler.dispatchMessage + 92(Handler.java:92)
at android.os.Looper.loop + 176(Looper.java:176)
at android.app.ActivityThread.main + 5317(ActivityThread.java:5317)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke + 511(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run + 1102(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main + 869(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(NativeStart.java)
任何领导都非常感谢。
答案 0 :(得分：0)
在方法onBindViewHolder中添加此代码
holder.setIsRecyclable(true);
并在将适配器设置为回收站之前查看过去的位置并使用代码查看
recyclerView.getRecycledViewPool().clear();
它工作正常
答案 1 :(得分：0)
只要您像在notifyDataSetChanged();方法中那样处理完整列表，就调用resetItems()
答案 2 :(得分：0)
我在您的代码中发现了问题
问题是，当您清除arrayList
dataList.clear();
您必须通知适配器数据集已更改。否则适配器不知道清除数据集，并且计算错误
dataList.clear();
notifyDataSetChanged();
因此，recyclerview适配器将知道发生了数据清除，并将重新计算位置。当您添加新数据时，不会有任何不一致。
答案 3 :(得分：0)
在创建更多加载功能时，我的聊天应用程序存在类似的问题，我已经成功解决了这个问题：
调用过多通知时也会产生不一致错误
答案 4 :(得分：0)
将所有notifyItemInserted或notifyItemRemoved替换为：notifyDataSetChanged（）;
public void notifyDataLoadingStartProgress() {
dataList.add(new VideoEntity());
notifyDataSetChanged();
}
public void notifyDataLoaded() {
if (dataList != null && dataList.size() > 1) {
dataList.remove(dataList.size() - 1);
}
setLoaded();
notifyDataSetChanged();
}
if (dy > 0) {//check for scroll down
visibleItemCount = gridLayoutManager.getChildCount();
totalItemCount = gridLayoutManager.getItemCount();
pastVisiblesItems = gridLayoutManager.findFirstVisibleItemPosition();
if (loading) { //<<-----------
if ((visibleItemCount + pastVisiblesItems) >= totalItemCount) {
loading = false; //<<-----------
if (onLoadMoreListener != null) {
onLoadMoreListener.onLoadMore(visibleItemCount + pastVisiblesItems);
}
}
}
}