我的应用程序中有回收站 View 。用户界面类似于 Google Play 商店应用。它有两个 View 寻呼机以及交替方式的项目列表和网格。所有数据都从网络服务中获取，并分为两个 API 调用。列表和网格的数据是从另一个 API 填充的。问题是当我快速滚动 recyclerview 时我遇到了这个崩溃。在滚动 recyclerview 时，用于在列表/网格中加载数据的 API 调用来自 bindData()。
阅读有关此主题的大量问题，但无法找到解决方案。
Fatal Exception: java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid view holder adapter positionViewHolder{396df09 position=3 id=-1, oldPos=0, pLpos:0 scrap [attachedScrap] tmpDetached no parent}
at android.support.v7.widget.RecyclerView$Recycler.validateViewHolderForOffsetPosition(RecyclerView.java:4505)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4636)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4617)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1994)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1390)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1353)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:574)
at android.support.v7.widget.RecyclerView.dispatchLayoutStep1(RecyclerView.java:2979)
at android.support.v7.widget.RecyclerView.onMeasure(RecyclerView.java:2619)
at android.view.View.measure(View.java:18811)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5952)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.support.v7.widget.CardView.onMeasure(CardView.java:208)
at android.view.View.measure(View.java:18811)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5952)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18811)
at android.support.v7.widget.RecyclerView$LayoutManager.measureChildWithMargins(RecyclerView.java:7487)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1416)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1353)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:574)
at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3028)
at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2906)
at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3283)
at android.view.View.layout(View.java:16653)
at android.view.ViewGroup.layout(ViewGroup.java:5438)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:336)
at android.widget.FrameLayout.onLayout(FrameLayout.java:273)
at android.view.View.layout(View.java:16653)
at android.view.ViewGroup.layout(ViewGroup.java:5438)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:336)
at android.widget.FrameLayout.onLayout(FrameLayout.java:273)
at android.view.View.layout(View.java:16653)
at android.view.ViewGroup.layout(ViewGroup.java:5438)
at android.support.design.widget.HeaderScrollingViewBehavior.layoutChild(HeaderScrollingViewBehavior.java:122)
at android.support.design.widget.ViewOffsetBehavior.onLayoutChild(ViewOffsetBehavior.java:42)
at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onLayoutChild(AppBarLayout.java:1192)
at android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:814)
at android.view.View.layout(View.java:16653)
at android.view.ViewGroup.layout(ViewGroup.java:5438)
at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:1187)
at android.view.View.layout(View.java:16653)
at android.view.ViewGroup.layout(ViewGroup.java:5438)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:336)
at android.widget.FrameLayout.onLayout(FrameLayout.java:273)
at android.view.View.layout(View.java:16653)
at android.view.ViewGroup.layout(ViewGroup.java:5438)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1743)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1586)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1495)
at android.view.View.layout(View.java:16653)
at android.view.ViewGroup.layout(ViewGroup.java:5438)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:336)
at android.widget.FrameLayout.onLayout(FrameLayout.java:273)
at android.view.View.layout(View.java:16653)
at android.view.ViewGroup.layout(ViewGroup.java:5438)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1743)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1586)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1495)
at android.view.View.layout(View.java:16653)
at android.view.ViewGroup.layout(ViewGroup.java:5438)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:336)
at android.widget.FrameLayout.onLayout(FrameLayout.java:273)
at com.android.internal.policy.PhoneWindow$DecorView.onLayout(PhoneWindow.java:2680)
at android.view.View.layout(View.java:16653)
at android.view.ViewGroup.layout(ViewGroup.java:5438)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2198)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1958)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1134)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6045)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:860)
at android.view.Choreographer.doCallbacks(Choreographer.java:672)
at android.view.Choreographer.doFrame(Choreographer.java:608)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:846)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5441)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:738)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:628)
这是我的主要 recyclerview 适配器:
public class HomeScreenDataAdapterv2 extends RecyclerView.Adapter<HomeScreenViewHolder> {
private HomeScreenActionHandler homeScreenActionHandler;
private ArrayList<HomeScreenParentDataModel> homeScreenParentDataModels;
public HomeScreenDataAdapterv2(ArrayList<HomeScreenParentDataModel> homeScreenParentDataModels) {
this.homeScreenParentDataModels = homeScreenParentDataModels;
}
@Override
public HomeScreenViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View holderView;
Context ctx = parent.getContext();
LayoutInflater inflater = LayoutInflater.from(ctx);
switch (viewType) {
case HomeScreenDataViewTypes.HOME_SCREEN_MAIN_BANNER_VIEW_TYPE:
holderView = inflater.inflate(R.layout.home_main_banner_adapter, parent, false);
return new HomeScreenMainBannerViewHolder(ctx, holderView, homeScreenActionHandler);
case HomeScreenDataViewTypes.HOME_SCREEN_HOT_DEALS_VIEW_TYPE:
holderView = inflater.inflate(R.layout.home_hot_deals_adapter, parent, false);
return new HotDealsViewHolder(ctx, holderView, homeScreenActionHandler);
case HomeScreenDataViewTypes.HOME_SCREEN_DYNAMIC_BLOCKS_LIST_VIEW_TYPE:
holderView = inflater.inflate(R.layout.home_screen_dynamic_blocks_parent_list_adapter, parent, false);
return new HomeScreenDynamicBlocksListViewHolder(ctx, holderView, homeScreenActionHandler);
case HomeScreenDataViewTypes.HOME_SCREEN_DYNAMIC_BLOCK_GRID_VIEW_TYPE:
holderView = inflater.inflate(R.layout.home_screen_dynamic_blocks_parent_grid_adapter, parent, false);
return new HomeScreenDynamicBlocksGridViewHolder(ctx, holderView, homeScreenActionHandler);
default:
return null;
}
}
@Override
public void onBindViewHolder(HomeScreenViewHolder holder, int position) {
HomeScreenParentDataModel homeScreenParentDataModel = homeScreenParentDataModels.get(position);
switch (homeScreenParentDataModels.get(position).getHome_screen_view_type()) {
case HomeScreenDataViewTypes.HOME_SCREEN_MAIN_BANNER_VIEW_TYPE:
((HomeScreenMainBannerViewHolder) holder).bindData((HomeBannerDataModel) homeScreenParentDataModel);
break;
case HomeScreenDataViewTypes.HOME_SCREEN_DYNAMIC_BLOCKS_LIST_VIEW_TYPE:
((HomeScreenDynamicBlocksListViewHolder) holder).bindListData((HomeScreenDynamicBlocksDataModel) homeScreenParentDataModel);
break;
case HomeScreenDataViewTypes.HOME_SCREEN_DYNAMIC_BLOCK_GRID_VIEW_TYPE:
((HomeScreenDynamicBlocksGridViewHolder) holder).bindGridData((HomeScreenDynamicBlocksDataModel) homeScreenParentDataModel);
break;
}
}
@Override
public int getItemCount() {
return homeScreenParentDataModels.size();
}
@Override
public int getItemViewType(int position) {
return homeScreenParentDataModels.get(position).getHome_screen_view_type();
}
private static class HomeScreenMainBannerViewHolder extends HomeScreenViewHolder {
private Context ctx;
private HomeScreenActionHandler homeScreenActionHandler;
private ViewPager main_banner_view_pager;
private CirclePageIndicator pager_indicator;
HomeScreenMainBannerViewHolder(Context ctx, View itemView, HomeScreenActionHandler homeScreenActionHandler) {
super(itemView);
this.ctx = ctx;
this.homeScreenActionHandler = homeScreenActionHandler;
main_banner_view_pager = (ViewPager) itemView.findViewById(R.id.main_banner_view_pager);
main_banner_view_pager.setClipToPadding(false);
int padding = Util.convertDptoPixel(ctx, 9.0f);
main_banner_view_pager.setPageMargin(
Util.convertDptoPixel(ctx, 9.0f));
main_banner_view_pager.setPadding(padding, 0, padding, 0);
pager_indicator = (CirclePageIndicator) itemView.findViewById(R.id.pager_indicator);
}
public void bindData(HomeBannerDataModel homeMainBannerDataModel) {
HomeMainBannerPagerAdapter mainBannerAdapter = new HomeMainBannerPagerAdapter(ctx, homeMainBannerDataModel.getBannerList());
mainBannerAdapter.setHomeScreenActionHandler(homeScreenActionHandler);
main_banner_view_pager.setAdapter(mainBannerAdapter);
pager_indicator.setViewPager(main_banner_view_pager);
}
}
private static class HomeScreenDynamicBlocksListViewHolder extends HomeScreenViewHolder implements View.OnClickListener {
private HomeScreenActionHandler homeScreenActionHandler;
private RubikMediumTextView section_name;
private RubikMediumButton btn_view_all;
private RecyclerView dynamic_widgets_container;
private Widget widget;
private HomeScreenBlockListAdapter blockListAdapter;
HomeScreenDynamicBlocksListViewHolder(Context ctx, View itemView, HomeScreenActionHandler homeScreenActionHandler) {
super(itemView);
this.homeScreenActionHandler = homeScreenActionHandler;
section_name = (RubikMediumTextView) itemView.findViewById(R.id.section_name);
btn_view_all = (RubikMediumButton) itemView.findViewById(R.id.btn_view_all);
btn_view_all.setOnClickListener(this);
dynamic_widgets_container = (RecyclerView) itemView.findViewById(R.id.dynamic_widgets_container);
section_name.setTextColor(Color.parseColor("#546682"));
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(ctx);
linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
linearLayoutManager.setAutoMeasureEnabled(true);
dynamic_widgets_container.setLayoutManager(linearLayoutManager);
dynamic_widgets_container.addItemDecoration(new DividerItemDecoration(ctx));
dynamic_widgets_container.setNestedScrollingEnabled(false);
}
void bindListData(HomeScreenDynamicBlocksDataModel dynamicBlocksDataModel) {
widget = dynamicBlocksDataModel.getWidget();
if (widget != null) {
section_name.setText(widget.getName());
ArrayList<BuyListingsModel> dynamicModels = widget.getDynamicDataModels();
if (blockListAdapter == null) {
blockListAdapter = new HomeScreenBlockListAdapter(dynamicModels, homeScreenActionHandler);
dynamic_widgets_container.setAdapter(blockListAdapter);
}
if (dynamicModels.isEmpty()) {
homeScreenActionHandler.fetchWidgetData(widget.getName(), getAdapterPosition(), dynamicBlocksDataModel, blockListAdapter);
}
}
}
@Override
public void onClick(View v) {
if (homeScreenActionHandler != null && widget != null) {
homeScreenActionHandler.gotoSearchResult(widget.getListingFilters());
}
}
}
private static class HomeScreenDynamicBlocksGridViewHolder extends HomeScreenViewHolder implements View.OnClickListener {
private HomeScreenActionHandler homeScreenActionHandler;
private RubikMediumTextView section_name;
private RubikMediumButton btn_view_all;
private RecyclerView dynamic_widgets_container;
private Widget widget;
private HomeScreenBlockGridAdapter blockGridAdapter;
HomeScreenDynamicBlocksGridViewHolder(Context ctx, View itemView, HomeScreenActionHandler homeScreenActionHandler) {
super(itemView);
this.homeScreenActionHandler = homeScreenActionHandler;
section_name = (RubikMediumTextView) itemView.findViewById(R.id.section_name);
btn_view_all = (RubikMediumButton) itemView.findViewById(R.id.btn_view_all);
btn_view_all.setOnClickListener(this);
dynamic_widgets_container = (RecyclerView) itemView.findViewById(R.id.dynamic_widgets_container);
GridLayoutManager gridLayoutManager = new GridLayoutManager(ctx, 2);
gridLayoutManager.setAutoMeasureEnabled(true);
dynamic_widgets_container.addItemDecoration(new GridSpacingItemDecoration(2, 1, true));
dynamic_widgets_container.setNestedScrollingEnabled(false);
dynamic_widgets_container.setLayoutManager(gridLayoutManager);
}
void bindGridData(HomeScreenDynamicBlocksDataModel dynamicBlocksDataModel) {
widget = dynamicBlocksDataModel.getWidget();
if (widget != null) {
section_name.setText(widget.getName());
ArrayList<BuyListingsModel> dynamicModels = widget.getDynamicDataModels();
if (blockGridAdapter == null) {
blockGridAdapter = new HomeScreenBlockGridAdapter(dynamicModels, homeScreenActionHandler);
dynamic_widgets_container.setAdapter(blockGridAdapter);
}
if (dynamicModels.isEmpty()) {
homeScreenActionHandler.fetchWidgetData(widget.getName(), getAdapterPosition(), dynamicBlocksDataModel, blockGridAdapter);
}
}
}
@Override
public void onClick(View v) {
if (homeScreenActionHandler != null && widget != null) {
homeScreenActionHandler.gotoSearchResult(widget.getListingFilters());
}
}
}
public interface HomeScreenActionHandler {
void gotoCategoryListing(String categoryName);
void gotoCategoryPage();
void handleBannerClick(Banner banner);
void gotoSearchResult(Bundle listingFiltersBundle);
void fetchWidgetData(String widgetName, int adapterPosition, HomeScreenDynamicBlocksDataModel dynamicBlocksDataModel, RecyclerView.Adapter listAdapter);
void performWishlistAction(BuyListingsModel buyListingsModel, int childApdaterPosition, RecyclerView.Adapter listAdapter);
void performBlockClick(String listing_id, boolean isInWatchlist);
}
public void setHomeScreenActionHandler(HomeScreenActionHandler homeScreenActionHandler) {
this.homeScreenActionHandler = homeScreenActionHandler;
}
}
这是在列表中加载数据的 API 调用:
public void fetchWidgetData(final String widgetName, final int adapterPosition,
final HomeScreenDynamicBlocksDataModel dynamicBlocksDataModel, final RecyclerView.Adapter listAdapter) {
final Widget widget = dynamicBlocksDataModel.getWidget();
Bundle b = widget.getListingFilters();
HashMap<String, String> params = new HashMap<>();
if (!b.containsKey("recently_sold"))
params.put("isSearch", "1");
Set<String> keySet = b.keySet();
Iterator<String> it = keySet.iterator();
while (it.hasNext()) {
String key = it.next();
params.put(key, b.getString(key));
}
Response.Listener<JSONObject> responseListener = new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
String code = response.getString("code");
if (code.equalsIgnoreCase("success")) {
JSONArray dataArray = response.getJSONArray("data");
ArrayList<BuyListingsModel> models = HomeScreenDataParser
.getDynamicBlocksModelList(dataArray);
if (models != null && !models.isEmpty()) {
ArrayList<BuyListingsModel> buyListingsModels = widget.getDynamicDataModels();
buyListingsModels.clear();
if (listAdapter != null) {
int size = models.size();
int upperbound = listAdapter instanceof HomeScreenBlockListAdapter ? 3 : 4;
for (int i = 0; i < size && i < upperbound; i++) {
buyListingsModels.add(models.get(i));
}
listAdapter.notifyItemRangeInserted(0, buyListingsModels.size());
}
//homeScreenDataAdapterv2.notifyItemChanged(adapterPosition);
}
} else if (code.equalsIgnoreCase("failed")) {
handleError(response);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
};
Response.ErrorListener errorListener = new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
error.printStackTrace();
}
};
Api.getHomeScreenWidgetDetails(widgetName, responseListener, errorListener, ctx, params);
最佳答案
由于您实际上是在替换所有数据，因此调用 notifyItemRangeInserted() 而实际上没有向适配器中插入任何内容会引发此问题。您必须在将实际数据设置到适配器之后调用正确的通知程序，或者更准确地说是底层列表列表。
notifyItemRangeInserted(pos, count) 通知适配器期望在 pos 处插入 count 个项目。因此，列表的大小应该增加 count，而不仅仅是 count。由于您替换了所有数据，因此您应该改为调用 notifyDataSetChanged() 或使用 DiffUtil 来计算数据的实际差异。但这样一来，您就不必再担心要使用哪个通知了。
listAdapter.notifyDataSetChanged();
关于android recyclerview 不一致检测到无效的 recycler viewholder 位置，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/43994845/
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