Java Code Examples for android.support.v7.widget.RecyclerView#RecycledViewPool

private void initVLayout() {
    mAdapters = new LinkedList<>();
    //初始化
    //创建VirtualLayoutManager对象
    layoutManager = new VirtualLayoutManager(activity);
    recyclerView.setLayoutManager(layoutManager);

    //设置回收复用池大小，（如果一屏内相同类型的 View 个数比较多，需要设置一个合适的大小，防止来回滚动时重新创建 View）
    RecyclerView.RecycledViewPool viewPool = new RecyclerView.RecycledViewPool();
    recyclerView.setRecycledViewPool(viewPool);
    viewPool.setMaxRecycledViews(0, 20);

    //设置适配器
    delegateAdapter = new DelegateAdapter(layoutManager, true);
    recyclerView.setAdapter(delegateAdapter);

    //自定义各种不同适配器
    initAllTypeView();
    //设置适配器
    //delegateAdapter.setAdapters(mAdapters);
}
 

private void initYCRefreshView() {
    recyclerView.setLayoutManager(new LinearLayoutManager(activity));
    final RecycleViewItemLine line = new RecycleViewItemLine(activity, LinearLayout.HORIZONTAL,
            SizeUtils.dp2px(1), Color.parseColor("#f5f5f7"));
    recyclerView.addItemDecoration(line);
    adapter = new InnovationAdapter(activity);
    recyclerView.setAdapter(adapter);
    addHeader();
    recyclerView.setRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
        @Override
        public void onRefresh() {
            SwipeRefreshLayout swipeToRefresh = recyclerView.getSwipeToRefresh();
            if(swipeToRefresh.isRefreshing()){
                recyclerView.setRefreshing(false);
            }
        }
    });

    //设置回收复用池大小，（如果一屏内相同类型的 View 个数比较多，需要设置一个合适的大小，防止来回滚动时重新创建 View）
    RecyclerView.RecycledViewPool viewPool = new RecyclerView.RecycledViewPool();
    recyclerView.getRecyclerView().setRecycledViewPool(viewPool);
    viewPool.setMaxRecycledViews(0, 20);
}
 

private void recyclerView(List<BinderViewHolder> cache) {
    if (!cache.isEmpty()) {
        RecyclerView.RecycledViewPool pool = cell.serviceManager.getService(RecyclerView.RecycledViewPool.class);
        for (int i = 0, size = cache.size(); i < size; i++) {
            BinderViewHolder viewHolder = cache.get(i);
            viewHolder.unbind();
            removeView(viewHolder.itemView);
            pool.putRecycledView(viewHolder);
        }
        cache.clear();
    }
}
 

private View getViewFromRecycler(@NonNull BaseCell cell) {
    GroupBasicAdapter adapter = cell.serviceManager.getService(GroupBasicAdapter.class);
    RecyclerView.RecycledViewPool pool = cell.serviceManager.getService(RecyclerView.RecycledViewPool.class);
    int itemViewType = adapter.getItemType(cell);
    BinderViewHolder holder = (BinderViewHolder) pool.getRecycledView(itemViewType);
    if (holder == null) {
        holder = (BinderViewHolder) adapter.createViewHolder(this, itemViewType);
    }
    holder.bind(cell);
    mViewHolders.add(holder);
    return holder.itemView;
}
 

private View getFooterViewFromRecycler(@NonNull BaseCell cell) {
    GroupBasicAdapter adapter = cell.serviceManager.getService(GroupBasicAdapter.class);
    RecyclerView.RecycledViewPool pool = cell.serviceManager.getService(RecyclerView.RecycledViewPool.class);
    int itemViewType = adapter.getItemType(cell);
    BinderViewHolder holder = (BinderViewHolder) pool.getRecycledView(itemViewType);
    if (holder == null) {
        holder = (BinderViewHolder) adapter.createViewHolder(this, itemViewType);
    }
    holder.bind(cell);
    mFooterViewHolders.add(holder);
    return holder.itemView;
}
 

private View getHeaderViewFromRecycler(@NonNull BaseCell cell) {
    GroupBasicAdapter adapter = cell.serviceManager.getService(GroupBasicAdapter.class);
    RecyclerView.RecycledViewPool pool = cell.serviceManager.getService(RecyclerView.RecycledViewPool.class);
    int itemViewType = adapter.getItemType(cell);
    BinderViewHolder holder = (BinderViewHolder) pool.getRecycledView(itemViewType);
    if (holder == null) {
        holder = (BinderViewHolder) adapter.createViewHolder(this, itemViewType);
    }
    holder.bind(cell);
    mHeaderViewHolders.add(holder);
    return holder.itemView;
}
 

private View getHeaderViewFromRecycler(@NonNull BaseCell cell) {
    GroupBasicAdapter adapter = cell.serviceManager.getService(GroupBasicAdapter.class);
    RecyclerView.RecycledViewPool pool = cell.serviceManager.getService(RecyclerView.RecycledViewPool.class);
    int itemViewType = adapter.getItemType(cell);
    BinderViewHolder holder = (BinderViewHolder) pool.getRecycledView(itemViewType);
    if (holder == null) {
        holder = (BinderViewHolder) adapter.createViewHolder(this, itemViewType);
    }
    holder.bind(cell);
    mHeaderViewHolders.add(holder);
    return holder.itemView;
}
 

private View getFooterViewFromRecycler(@NonNull BaseCell cell) {
    GroupBasicAdapter adapter = cell.serviceManager.getService(GroupBasicAdapter.class);
    RecyclerView.RecycledViewPool pool = cell.serviceManager.getService(RecyclerView.RecycledViewPool.class);
    int itemViewType = adapter.getItemType(cell);
    BinderViewHolder holder = (BinderViewHolder) pool.getRecycledView(itemViewType);
    if (holder == null) {
        holder = (BinderViewHolder) adapter.createViewHolder(this, itemViewType);
    }
    holder.bind(cell);
    mFooterViewHolders.add(holder);
    return holder.itemView;
}
 

public void setRecyclerView(final RecyclerView recyclerView, boolean assignDummyPool)
        throws Throwable {
    mRecyclerView = recyclerView;
    if (assignDummyPool) {
        RecyclerView.RecycledViewPool pool = new RecyclerView.RecycledViewPool() {
            @Override
            public RecyclerView.ViewHolder getRecycledView(int viewType) {
                RecyclerView.ViewHolder viewHolder = super.getRecycledView(viewType);
                if (viewHolder == null) {
                    return null;
                }

                ViewHolderHelper.addViewHolderFlag(viewHolder, 1); //  RecyclerView.ViewHolder.FLAG_BOUND
                ViewHolderHelper.setField(viewHolder, "mPosition", 200);
                ViewHolderHelper.setField(viewHolder, "mOldPosition", 300);
                ViewHolderHelper.setField(viewHolder, "mPreLayoutPosition", 500);
                return viewHolder;
            }

            @Override
            public void putRecycledView(RecyclerView.ViewHolder scrap) {
                super.putRecycledView(scrap);
            }
        };
        mRecyclerView.setRecycledViewPool(pool);
    }

    // mAdapterHelper = recyclerView.mAdapterHelper;
    runTestOnUiThread(new Runnable() {
        @Override
        public void run() {
            ((ViewGroup) getActivity().findViewById(android.R.id.content)).addView(recyclerView);
        }
    });
}
 

public void initAdapter() {
    if (mBannerAdapter == null) {
        if (serviceManager != null) {
            GroupBasicAdapter adapter = serviceManager.getService(GroupBasicAdapter.class);
            RecyclerView.RecycledViewPool pool = serviceManager.getService(RecyclerView.RecycledViewPool.class);
            mBannerAdapter = new BannerAdapter(adapter, pool);
        }
    }
    if (mBannerWrapper == null) {
        mBannerWrapper = new UltraViewPagerAdapter(mBannerAdapter);
    }
}
 

/**
 * Sets the number of apps per row in this recycler view.
 */
public void setNumAppsPerRow(DeviceProfile grid, int numAppsPerRow) {
    mNumAppsPerRow = numAppsPerRow;

    RecyclerView.RecycledViewPool pool = getRecycledViewPool();
    int approxRows = (int) Math.ceil(grid.availableHeightPx / grid.allAppsIconSizePx);
    pool.setMaxRecycledViews(AllAppsGridAdapter.VIEW_TYPE_EMPTY_SEARCH, 1);
    pool.setMaxRecycledViews(AllAppsGridAdapter.VIEW_TYPE_SEARCH_DIVIDER, 1);
    pool.setMaxRecycledViews(AllAppsGridAdapter.VIEW_TYPE_SEARCH_MARKET_DIVIDER, 1);
    pool.setMaxRecycledViews(AllAppsGridAdapter.VIEW_TYPE_SEARCH_MARKET, 1);
    pool.setMaxRecycledViews(AllAppsGridAdapter.VIEW_TYPE_ICON, approxRows * mNumAppsPerRow);
}
 

/**
 * Sets the number of apps per row in this recycler view.
 */
public void setNumAppsPerRow(DeviceProfile grid, int numAppsPerRow) {
    mNumAppsPerRow = numAppsPerRow;

    RecyclerView.RecycledViewPool pool = getRecycledViewPool();
    int approxRows = (int) Math.ceil(grid.availableHeightPx / grid.allAppsIconSizePx);
    pool.setMaxRecycledViews(AllAppsGridAdapter.EMPTY_SEARCH_VIEW_TYPE, 1);
    pool.setMaxRecycledViews(AllAppsGridAdapter.SEARCH_MARKET_DIVIDER_VIEW_TYPE, 1);
    pool.setMaxRecycledViews(AllAppsGridAdapter.SEARCH_MARKET_VIEW_TYPE, 1);
    pool.setMaxRecycledViews(AllAppsGridAdapter.ICON_VIEW_TYPE, approxRows * mNumAppsPerRow);
    pool.setMaxRecycledViews(AllAppsGridAdapter.PREDICTION_ICON_VIEW_TYPE, mNumAppsPerRow);
    pool.setMaxRecycledViews(AllAppsGridAdapter.SECTION_BREAK_VIEW_TYPE, approxRows);
    pool.setMaxRecycledViews(AllAppsGridAdapter.CUSTOM_PREDICTED_APPS_HEADER_VIEW_TYPE, 1);
    pool.setMaxRecycledViews(AllAppsGridAdapter.CUSTOM_PREDICTED_APPS_FOOTER_VIEW_TYPE, 1);
}
 

public BannerAdapter(GroupBasicAdapter adapter, RecyclerView.RecycledViewPool pool) {
    super(adapter, pool);
    this.adapter = adapter;
}
 

public InnerRecycledViewPool() {
    this(new RecyclerView.RecycledViewPool());
}
 

public static Void recycledViewPool(RecyclerView.RecycledViewPool arg) {
  return BaseDSL.attr("recycledViewPool", arg);
}
 

public BannerAdapter(GroupBasicAdapter adapter, RecyclerView.RecycledViewPool pool) {
    super(adapter, pool);
    this.adapter = adapter;
}
 

public RecyclerView.RecycledViewPool getRecycledViewPool() {
    if (serviceManager != null) {
        return serviceManager.getService(RecyclerView.RecycledViewPool.class);
    }
    return null;
}
 

public PagerAdapter(SubAdapter adapter, RecyclerView.RecycledViewPool pool) {
    super(adapter, pool);
}
 

public RecyclerView.RecycledViewPool getRecycledViewPool() {
    if (serviceManager != null) {
        return serviceManager.getService(RecyclerView.RecycledViewPool.class);
    }
    return null;
}
 

/**
 * Wrap an existing pool
 *
 * @param pool
 */
public InnerRecycledViewPool(RecyclerView.RecycledViewPool pool) {
    this.mInnerPool = pool;
}