我将适配器附加到父RecyclerView的onBindViewHolder方法内的水平recylerviews,如下所示.

@Override
public void onBindViewHolder(final MainViewHolder holder,final int position) {
    switch (holder.getItemViewType()) {
        case TYPE_PRODUCT:
            ((ListHolderProduct) holder).itemTitle.setText(browseCategoryHomePageItems.get(position).displayName.toUpperCase());
            ((ListHolderProduct) holder).recyclerView.setAdapter(new CarouselProductsRecyclerAdapter(context,browseCategoryHomePageItems.get(position).products,R.layout.activity_categoryhome_products_grid_item,nestedRecyclerItemClickedListener,position));
            break;
        case TYPE_DEAL:
            ((ListHolderDeal) holder).itemTitle.setText(browseCategoryHomePageItems.get(position).displayName.toUpperCase());
            ((ListHolderDeal) holder).recyclerView.setAdapter(new CarouselDealsRecyclerAdapter(context,browseCategoryHomePageItems.get(position).dealItems,R.layout.activity_categoryhome_deals_grid_item,position));
            break;
            //few more types like this
    }
}

现在每当我滚动页面时它都会滞后一点,因为我在OnBindViewHolder上将适配器连接到水平RecyclerView

并且可以有N个TYPE_PRODUCT或任何类型的水平列表.
意味着可以有更多相同类型的水平列表.

知道如何优化这个东西并提高滚动速度.

它是滞后的,因为之前每次为列表调用setAdapter.

更新我正在扩展LinearLayoutManager,并且我正在设置extraLayout空间,这已经修复了我的问题,但我不知道这是正确的方式我是设置额外的空间如下.

layoutManager.setExtraLayoutSpace(2 * this.getResources().getDisplayMetrics().heightPixels);

而follwoing是自定义布局管理器类

public class PreCachingLayoutManager extends LinearLayoutManager {
private static final int DEFAULT_EXTRA_LAYOUT_SPACE = 600;
private int extraLayoutSpace = -1;
private Context context;

public PreCachingLayoutManager(Context context) {
    super(context);
    this.context = context;
}

public PreCachingLayoutManager(Context context,int extraLayoutSpace) {
    super(context);
    this.context = context;
    this.extraLayoutSpace = extraLayoutSpace;
}

public PreCachingLayoutManager(Context context,int orientation,boolean reverseLayout) {
    super(context,orientation,reverseLayout);
    this.context = context;
}

public void setExtraLayoutSpace(int extraLayoutSpace) {
    this.extraLayoutSpace = extraLayoutSpace;
}

@Override
protected int getExtraLayoutSpace(RecyclerView.State state) {
    if (extraLayoutSpace > 0) {
        return extraLayoutSpace;
    }
    return DEFAULT_EXTRA_LAYOUT_SPACE;
}

}