RecyclerView页眉和页脚 [英] RecyclerView header and footer

问题描述

也许这个问题已经被问过，但我似乎无法找到一个precise答案或解决方案。我开始使用RecyclerView，我实现它使用LinearLayoutManager。现在我想添加自定义页眉和页脚的项目，从在我RecyclerView其余项目有所不同。页眉和页脚不应该是粘的，我希望他们能够用滚动的其余项目。有人能指出一些例子，如何做到这一点，或只是分享想法。我将AP preciate非常喜欢。 THX

Maybe this question has been asked before, but I could not seem to find a precise answer or solution. I started using the RecyclerView, and I implemented it using the LinearLayoutManager. Now I want to add custom header and footer items, that differ from the rest of the items in my RecyclerView. The header and footer should not be sticky, I want them to scroll with the rest of the items. Can somebody point out some example how to do this or just share ideas. I will appreciate it very much. Thx

推荐答案

在你的适配器添加此类：

in your adapter add this class:

private class VIEW_TYPES {
        public static final int Header = 1;
        public static final int Normal = 2;
        public static final int Footer = 3;
}

然后重写这样下面的方法：

then Override the following method like this:

@Override
public int getItemViewType(int position) {

    if(items.get(position).isHeader)
        return VIEW_TYPES.Header;
    else if(items.get(position).isFooter)
        return VIEW_TYPES.Footer;
    else
        return VIEW_TYPES.Normal;

}

现在在onCreateViewHolder方法充气基于视图类型::

Now in the onCreateViewHolder method inflate your layout based on the view type::

@Override
public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {

    View rowView;

    switch (i)
    {
        case VIEW_TYPES.Normal:
            rowView=LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.normal, viewGroup, false);
            break;
        case VIEW_TYPES.Header:
            rowView=LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.header, viewGroup, false);
            break;
        case VIEW_TYPES.Footer:
            rowView=LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.footer, viewGroup, false);
            break;
        default:
            rowView=LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.normal, viewGroup, false);
            break;
    }
    return new ViewHolder (rowView);
}

希望这可以帮助。

Hope this can help.

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