Наш QA обнаружил ошибку: произошло следующее падение, связанное с RecyclerView: `
java.lang.IndexOutOfBoundsException: обнаружено несоответствие.Недопустимая позиция элемента 2 (смещение: 2) .state: 3
Возможно, жестокий обходной путь может заключаться в том, чтобы перехватить исключение, когда оно происходит, и заново создать экземпляр RecyclverView с нуля, чтобы не остаться споврежденное состояние.
Но, если возможно, я бы хотел лучше понять проблему (и, возможно, исправить ее в источнике), а не маскировать ее.
Ошибка легко воспроизводитсяпрокрутка продолжается быстро, создавая этот сбой, но это фатально, когда это происходит.
Мой код работы:
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;
}
}
Пожалуйста, посмотрите мой класс и дайте мне знать, что происходит, когдаЯ быстро прокручиваю этот сбой в меньшем количестве устройств.
И Stack Trace:
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)
Любое лидерство высоко ценится. Спасибо.