Recyclerview显示不同的视图类型 [英] Recyclerview show different view types

问题描述

我正在使用recycleview显示列表.我想知道我们如何显示不同类型的视图?与之类似，不同的ViewHolders会将相同的适配器设置为

I'm using the recycleview to show a list. I was wondering how do we show different types of views? As in, different ViewHolders int the same adapter

在简单的列表视图中，我们使用了getItemViewType()，在recycleview中有什么不同吗?

In the simple listview we used getItemViewType(), anything different in the recycleview?

推荐答案

要创建具有多种视图类型的RecyclerView，只需实现getItemViewType()，两个不同的ViewHolder并注意onCreateViewHolder()中的viewType参数>和bindViewHolder().

To create RecyclerView with multiple view type just implement getItemViewType(), two different ViewHolders and take care of the viewType parameter in onCreateViewHolder() and bindViewHolder().

简短示例:

public class MultipleViewTypesAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

    private static final int VIEW_TYPE_FIRST  = 0;
    private static final int VIEW_TYPE_SECOND = 1;

    class ViewHolderFirst extends RecyclerView.ViewHolder {
        ...
    }

    class ViewHolderSecond extends RecyclerView.ViewHolder {
        ...
    }

    @Override
    int getItemViewType(int position) {
        return position % 2;
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        switch (viewType) {
            case VIEW_TYPE_FIRST: return new ViewHolderFirst(...);
            case VIEW_TYPE_SECOND: return new ViewHolderSecond(...);
            ...
        }
    }

    @Override
    public void bindViewHolder(RecyclerView.ViewHolder holder, int position) {
        switch (getItemViewType(position)) {
            case VIEW_TYPE_FIRST:
                ViewHolderFirst viewHolderFirst = (ViewHolderFirst)holder;
                ...
                break;
            case VIEW_TYPE_SECOND:
                ViewHolderSecond viewHolderSecond = (ViewHolderSecond)holder;
                ...
                break;
            ...
        }
    }
}

这篇关于Recyclerview显示不同的视图类型的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！