Question

我有这个在click事件中获得RecyclerView位置：

 List<Posts> Posts;

    public Posts getItem(int position) {
        return Posts.get(position);
    }

和此函数返回一个位置列表：

public String getPid() {
        return idp;
    }

在这篇帖子列表中我有：

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

    //Imageloader to load image
    private ImageLoader imageLoader;
    private final Context context;

    //List to store all posts
    List<Posts> Posts;

    public Posts getItem(int position) {
        return Posts.get(position);
    }

    //Constructor of this class
    public CardAdapter(List<Posts> Post, Context context){
        super();
        //Getting all
        this.Posts = Post;
        this.context = context;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View v = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.posts_list, parent, false);
        ViewHolder viewHolder = new ViewHolder(v);
        return viewHolder;
    }

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

        //Getting the particular item from the list
        Posts post =  Posts.get(position);

        //Loading image from url
        imageLoader = CustomVolleyRequest.getInstance(context).getImageLoader();

        //Showing data on the views
        holder.imageView.setImageUrl(post.getImageUrl(), imageLoader);
        holder.textViewName.setText(post.getName());
        holder.textViewPublisher.setText(post.getPublisher());
        holder.setIsRecyclable(false);

    }

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

    class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
        //Views
        public NetworkImageView imageView;
        public TextView textViewName;
        public TextView textViewPublisher;

        //Initializing Views
        public ViewHolder(View itemView) {
            super(itemView);
            imageView = (NetworkImageView) itemView.findViewById(R.id.imageViewHero);
            textViewName = (TextView) itemView.findViewById(R.id.textViewName);
            textViewPublisher = (TextView) itemView.findViewById(R.id.textViewPublisher);
            textViewName.setClickable(true);
            textViewName.setOnClickListener(this);
        }
        @Override
        public void onClick(View v) {

            int position  =   getAdapterPosition();

// what to do next?

        }

    }
}

我想知道的是我如何从我想要的位置获得这个idp值。

我的代码：

def jsonTxt = '''{
    "hotels": [{
            "roomInformation": [{

                "roomPrice": 618.4

            }],

            "totalPrice": 618.4
        },

        {
            "roomInformation": [{
                "roomPrice": 679.79
            }],
            "totalPrice": 679.79
        }
    ]

}'''

Answer 1

嗯......似乎很简单......

int position  =   getAdapterPosition();
Post p = getItem(position);

但是，你真的需要这个职位吗？

ViewHolder可以保留Post ...

class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
    // Data
    public Post post;
    //Views
    public NetworkImageView imageView;

并且

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

    //Getting the particular item from the list
    Posts post =  Posts.get(position); // or use getItem(position);
    holder.post = post;

    // You could even make a holder.position variable... your choice.

然后，只需使用onClick

中的ViewHolder.this.post即可

获取列表中的项目位置

1 个答案: