java - 在 RecyclerView 的底部有一个 ImageView

Question

我有一个RecyclerView，我想在底部制作一个ImageView，如果它......只是为了清楚起见，不是屏幕底部，而是RecyclerView的底部，所以你必须滚动RecyclerView才能到达ImageView。

ImageView 必须是 RecyclerView 的一部分吗？

Answer 1

1) Create a viewholder for the footer

public class FooterViewHolder extends ViewHolder {
    public FooterViewHolder(View itemView) {
        super(itemView);
        itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // Do whatever you want on clicking the item
            }
        });
    }
}

2) Now on onCreateViewHolder() check for the correct viewholder to inflate the footer or the regular viewholder as appropriate:

    if (viewType == MY_FOOTER_VIEW) {
        v = LayoutInflater.from(parent.getContext()).inflate(R.layout.my_list_item_footer, parent, false);

        FooterViewHolder footerViewHolder= new FooterViewHolder(v);

        return vh;
    }

 //your regular viewholder inflation

3)Perform the correct binding:

@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {

    try {
        if (holder instanceof NormalViewHolder) {
            NormalViewHolder vh = (NormalViewHolder) holder;

            vh.bindView(position);
        } else if (holder instanceof FooterViewHolder) {
            FooterViewHolder vh = (FooterViewHolder) holder;
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

4) on getItemCount() return +1 element

 return data.size() + 1;

5) override getItemViewType() to identify your new type for the footer.

@Override
public int getItemViewType(int position) {
    if (position == data.size()) {
        // This is where we'll add footer.
        return FOOTER_VIEW;
    }

    return super.getItemViewType(position);
}