RecycleView onClickListener - 在哪里补充？ [英] RecycleView onClickListener - Where to add?

问题描述

我一直努力遵循以下指导来实现对RecyclerView的onClickListener

I've been trying to follow the following guide to implement an onClickListener on a RecyclerView

http://blog.lovelyhq.com /创建-名单与 - recyclerview功能于Android的部分-2 /

不过，我似乎无法得到任何上下文来调用setOnClickListener或为getPosition。

However, I can't seem to get any context to call setOnClickListener or getPosition.

下面是我的code（误差旁边有注释）：

Here is my code (errors have comments next to them):

public class CategoryDataAdapter extends RecyclerView.Adapter<CategoryDataAdapter.DataViewHolder> implements View.OnClickListener
{
    private List<CategoryData.Category> dataList;
    private static Context con;

    private ClickListener clickListener;

    public CategoryDataAdapter(Context context, List<CategoryData.Category> list)
    {
        this.dataList = list;
        con = context;
    }

    @Override
    public int getItemCount()
    {
        return dataList.size();
    }

    @Override
    public void onBindViewHolder(DataViewHolder dataViewHolder, int i)
    {
        CategoryData.Category item = dataList.get(i);

        Picasso.with(con).load(item.getImage()).into(dataViewHolder.categoryImage);
        dataViewHolder.categoryText.setText(item.getName());
    }

    @Override
    public DataViewHolder onCreateViewHolder(ViewGroup viewGroup, int i)
    {
        View itemView = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.tile_category, viewGroup, false);
        DataViewHolder dvh = new DataViewHolder(itemView);

        return dvh;
    }

    public static class DataViewHolder extends RecyclerView.ViewHolder
    {
        protected ImageView categoryImage;
        protected TextView categoryText;


        public DataViewHolder(View v)
        {
            super(v);

            categoryImage = (ImageView) v.findViewById(R.id.categoryImage);
            categoryText = (TextView) v.findViewById(R.id.categoryName);

            v.setOnClickListener(this); // here, can't put in 'this'
        }
    }

    public interface ClickListener
    {
        /**
         * Called when the view is clicked.
         *
         * @param v view that is clicked
         * @param position of the clicked item
         * @param isLongClick true if long click, false otherwise
         */

        public void onClick(View v, int position, boolean isLongClick);
    }

    public void setClickListener(ClickListener clickListener)
    {
        this.clickListener = clickListener;
    }

    @Override
    public void onClick(View v)
    {
        clickListener.onClick(v, getPosition(), false); // here, get position
    }
}

我能做些什么来解决这个问题？我只需要为整个视图点击监听器，而不是一个特定的项目（已经实施了）

What can I do to fix this? I only need a click listener for the entire view, not one particular item (already implemented that)

推荐答案

而不是让 RecyclerView.Adapter 实施 View.OnClickListener ，使 DataViewHolder 实施。随后还保存rootview你DataViewHolder变量（如ImageView的和的TextView），并在 onBindViewHolder 使用类似如下：

Instead of making RecyclerView.Adapter implement View.OnClickListener, make DataViewHolder implement that. then also save the rootview at your DataViewHolder variable (like ImageView and TextView) and at onBindViewHolder use something like below:

dataViewHolder.rootView.setOnClickListener(dataViewHolder);

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