使用 GridLayoutManager 在 RecyclerView 中自定义 view/row

Question

我已经使用 GirdLayoutManager 成功实现了 RecyclerView（普通实现，没什么特别的）但现在我卡住了，因为我想在第一个之后添加自定义 view/row 3个元素。见下图（蓝色区域）：

我怎样才能做到这一点？有任何想法吗？谢谢！

Answer 1

如下所示设置您的网格布局管理器：

final GridLayoutManager mng_layout = new GridLayoutManager(this.getActivity(), 2);

mng_layout.setSpanSizeLookup( new GridLayoutManager.SpanSizeLookup() {
            @Override
            public int getSpanSize(int position) {
                 switch( recyclerAdapter.getItemViewType(position) ) {
                    case MyRecyclerAdapter.TYPE_SINGLE:
                        return 1;
                    case MyRecyclerAdapter.TYPE_DEFAULT:
                        return 2;
                    default:
                        return -1;
                }
            }
        });
myRecyclerView.setLayoutManager(mng_layout);

然后按如下方式更新您的 RecyclerViewAdapter：

@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view = null;
    if (viewType==TYPE_DEFAULT) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.product_grid_view_item, parent, false);
        return new DefaultViewHolder(view);
    } else if (viewType==TYPE_SINGLE){
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.product_grid_view_header, parent, false);
        return new SingleItemViewHolder(view);
    }
    throw new RuntimeException("There is no type that matches the type " + viewType + " + make sure your using types correctly");
}

 @Override
 public int getItemViewType(int position) {
     return (list.get(position).getType()==TYPE_DEFAULT) ? TYPE_DEFAULT : TYPE_SINGLE;
 }

使用 GridLayoutManager 在 RecyclerView 中自定义 view/row

Custom view/row in RecyclerView with GridLayoutManager

android

android-gridlayout

gridlayoutmanager

android-recyclerview