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android recyclerview 不一致检测到无效的 recycler viewholder 位置

转载 作者：塔克拉玛干 更新时间：2023-11-02 19:09:15 24 4
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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/

24 4 0
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