同一适配器中的多个布局管理器

Question

if(isListView){
                item.setIcon(getActivity().getResources().getDrawable(R.drawable.ic_list_view));
                GridLayoutManager lm = new GridLayoutManager(getActivity(),2);
                lm.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
                    @Override
                    public int getSpanSize(int position) {
                        if (channelDetailAdapter != null) {
                            switch (channelDetailAdapter.getItemViewType(position)) {
                                case 0:
                                    return 2; //number of columns of the grid
                                default:
                                    return 1;
                            }
                        } else {
                            return -1;
                        }
                    }
                });
                rvChannelDetail.setLayoutManager(lm);
                isListView = false;
            }else{
                item.setIcon(getActivity().getResources().getDrawable(R.drawable.ic_grid_view));
                LinearLayoutManager lm = new LinearLayoutManager(getActivity());
                rvChannelDetail.setLayoutManager(lm);
                isListView = true;
            }
            channelDetailAdapter.notifyDataSetChanged();

适配器内的代码是

if(layout_type.getLayoutManager() instanceof GridLayoutManager){
            View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.content_media_grid_items, null);
            Media_Grid_ImageHolder viewHolder = new Media_Grid_ImageHolder(view);
            return viewHolder;
        }else{
            View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.content_media_list_items, null);
            Media_List_ImageHolder viewHolder = new Media_List_ImageHolder(view);
            return viewHolder;
        }

Answer 1

我想你必须在你的视图持有者类中处理这个问题。

return YourHolder(your view,viewType);

只写一个视图持有人：

public class YourHolder extends RecyclerView.ViewHolder
{
 ...

public YourHolder(View itemView,int type)
{
    super(itemView);
    if(type==GRID_VIEW){
    // grid view initial
    }  if(type==LIST_VIEW){
    // list view initial
}  

我希望这对你有用：）