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

问题描述

我使用的是recycleview显示一个列表。我想知道我们如何表现出不同类型的意见？如，不同ViewHolders诠释同一个适配器

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

在我们使用getItemViewType（）的简单列表视图，什么都在recycleview不同？

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

推荐答案

要创建 RecyclerView 与多个视图类型只需要实现 getItemViewType（），两个不同的 ViewHolder 和照顾 viewType 参数的 onCreateViewHolder（）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().

短的例子：

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Recycleview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！