android - Android双向 View -Vertical Recyclerview中的Horizo​​ntal Recyclerview

我想创建一个动态加载视图，其中包含水平recyclerview在垂直recyclerview中，垂直recyclerview应该在scrollview中，因为主视图包含更多的视图组件。
所以我的动态层次结构如下：

 Scrollview [
  | Viewpager --
  | AdView --
  | Vertical Items - Recyclerview {
       1) [Horizontal Recyclerview {1.1, 1.2, 1.3} [Lazy Loading of Items]]
       2) [Horizontal Recyclerview {2.1, 2.2, 2.3} [Lazy Loading of Items]]
       3) [Horizontal Recyclerview {3.1, 3.2, 3.3} [Lazy Loading of Items]]
       4) [Horizontal Recyclerview {4.1, 4.2, 4.3} [Lazy Loading of Items]]
       .
       .
       .
    [Lazy Loading of Items in Vertical Direction also]
       }
   | Some Another View --
          ]

在android中有没有实现这种视图的最佳方法。所以在水平和垂直方向上都可以实现动态加载？
Android中有可用的库吗？
请给我举几个很好的例子。

最佳答案

最好的方法是使用RendererRecyclerViewAdapter
步骤1：将ViewModel接口添加到简单项

public class SimpleItem implements ViewModel {
    /* your getters */
}

步骤2：为您的简单项目创建ViewBinder。

private ViewRenderer getSimpleViewBinder() {
    return new ViewBinder<>(
        R.layout.simple_item, /* your item layout */
        SimpleItem.class, /* your model class */
        (model, finder, payloads) -> {
            /* your binding */
            finder.setText(R.id.textView, model.getText());
    });
}

步骤3：扩展DefaultCompositeViewModel并添加水平项的uniq id

public class HorizontalViewModel extends DefaultCompositeViewModel {

    private int mID;

    public HorizontalViewModel(int ID, List<? extends ViewModel> items) {
        super(items);
        mID = ID;
    }

    public int getID() {
        return mID;
    }
}

它是你的水平项，里面包含所有的简单项。
步骤4：创建HorizontalViewBinder

public class HorizontalViewBinder extends CompositeViewBinder<HorizontalViewModel> {

    public HorizontalViewBinder(int layoutID,
                                int recyclerViewID,
                                Class<HorizontalViewModel> type) {
        super(layoutID, recyclerViewID, type);
    }

    @Override
    public void bindView(HorizontalViewModel model, CompositeViewHolder holder) {
        super.bindView(model, holder);
        holder.getRecyclerView().addOnScrollListener(new EndlessScrollListener() {
            @Override
            public void onLoadMore(int page, int totalItemsCount) {
                holder.getAdapter().showLoadMore();
                /* sendLoadMoreRequest(model.getID()); */
            }
        });
    }

    @NonNull
    @Override
    public CompositeViewHolder createViewHolder(ViewGroup parent) {
        final CompositeViewHolder viewHolder = super.createViewHolder(parent);
        viewHolder.getAdapter().registerRenderer(new LoadMoreViewBinder(R.layout.load_more));
        /* don't forget to create load more layout */
        return viewHolder;
    }
}

步骤5：为水平视图绑定器创建getter

private ViewRenderer getHorizontalViewBinder() {
    return new HorizontalViewBinder<>(
        R.layout.horizontal_layout, /* your horizontal layout that contains RecyclerView */
        R.id.recycler_view, /* an ID of RecyclerView */
        HorizontalViewModel.class /* your created class, see Step 3 */
    );
}

步骤6：在片段/活动中初始化主renderrecyclerviewapter

RendererRecyclerViewAdapter mRecyclerViewAdapter = new RendererRecyclerViewAdapter();
mRecyclerViewAdapter.registerRenderer(new Horizontal().registerRenderer(getHorizontalViewBinder().registerRenderer(getSimpleViewBinder())); /* register HorizontalViewBinder and SimpleViewBinder */
mRecyclerViewAdapter.setItems(getYourList());

步骤7：将loadMoreListener添加到主RecyclerView

mRecyclerView.addOnScrollListener(new EndlessScrollListener() {
    @Override
    public void onLoadMore(int page, int totalItemsCount) {
        mRecyclerViewAdapter.showLoadMore();
        /* send request to a server */
    }
});

步骤8：为其他项目创建specials viewbinder：adviewbinder，其他viewbinder并在适配器中注册它们。请参阅步骤1和步骤2。
仅供参考：endlesscrollllistener-这是loadmorelistener的实现
享受吧！：）
如果需要更多详细信息，请参见wiki页面：简单项、复合项、加载更多指示器。