Android 如何将点击功能添加到回收器视图?

Android 如何将点击功能添加到回收器视图?,android,android-intent,android-recyclerview,Android,Android Intent,Android Recyclerview,这是我在Myviewholder中添加onclicklistener的适配器。我想在卡片视图上执行onclick功能,获取被单击卡片的位置,并使用intent将所选卡片的值发送给其他活动。请帮我完成下面我给出的适配器和片段 private LayoutInflater inflater; private ArrayList<Books> dataModelArrayList; private OnItemClickListener onItemClickListener; priv

这是我在Myviewholder中添加onclicklistener的适配器。我想在卡片视图上执行onclick功能,获取被单击卡片的位置,并使用intent将所选卡片的值发送给其他活动。请帮我完成下面我给出的适配器和片段

private LayoutInflater inflater;
private ArrayList<Books> dataModelArrayList;
private OnItemClickListener onItemClickListener;

private Context ctx;

String url = "https://test1.xz.com/pub/media/wysiwyg/";

public MyRecyclerAdapter(Context ctx, ArrayList<Books> dataModelArrayList){
    inflater = LayoutInflater.from(ctx);
    this.dataModelArrayList = dataModelArrayList;
}

@Override
public MyRecyclerAdapter.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

    View view = inflater.inflate(R.layout.singleitem_recyclerview, parent, false);
    MyViewHolder holder = new MyViewHolder(view);
    return holder;
}

@Override
public void onBindViewHolder(MyRecyclerAdapter.MyViewHolder holder, int position) {
    if (dataModelArrayList.get(position).getImage().isEmpty()) {
        Picasso.get().load(R.drawable.placeholder)
                .placeholder(R.drawable.placeholder)
                .error(R.drawable.placeholder)
                .into(holder.iv);
    }else{Picasso.get().load(url + dataModelArrayList.get(position).getImage()).into(holder.iv);}
    holder.name.setText(dataModelArrayList.get(position).getBookFullName());
}

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

class MyViewHolder extends RecyclerView.ViewHolder implements
        View.OnClickListener{

    TextView name;
    ImageView iv;

    public MyViewHolder(View itemView) {
        super(itemView);

        name = (TextView) itemView.findViewById(R.id.name);
        iv = (ImageView) itemView.findViewById(R.id.iv);
    }

    @Override
    public void onClick(View v) {

        onItemClickListener.onItemClick(dataModelArrayList);
    }
}

public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
    this.onItemClickListener = onItemClickListener;
}
public interface OnItemClickListener {
    void onItemClick(ArrayList<Books> Books);
}
私人充气机;
私有ArrayList dataModelArrayList;
私有OnItemClickListener OnItemClickListener;
私有上下文ctx;
字符串url=”https://test1.xz.com/pub/media/wysiwyg/";
公共MyRecyclerAdapter(上下文ctx、ArrayList dataModelArrayList){
充气机=从(ctx)开始的充气机;
this.dataModelArrayList=dataModelArrayList;
}
@凌驾
公共MyRecyclerAdapter.MyViewHolder onCreateViewHolder(视图组父级,int-viewType){
视图=充气机。充气(R.layout.singleitem\u recyclerview,parent,false);
MyViewHolder=新的MyViewHolder(视图);
报税表持有人;
}
@凌驾
BindViewHolder上的公共无效(MyRecyclerAdapter.MyViewHolder,int位置){
if(dataModelArrayList.get(position).getImage().isEmpty()){
毕加索.get().load(R.drawable.placeholder)
.placeholder(R.drawable.placeholder)
.错误(R.drawable.placeholder)
.转入(持有人iv);
}else{Picasso.get().load(url+dataModelArrayList.get(position.getImage()).into(holder.iv);}
holder.name.setText(dataModelArrayList.get(position.getBookFullName());
}
@凌驾
public int getItemCount(){
返回dataModelArrayList.size();
}
类MyViewHolder扩展了RecyclerView.ViewHolder实现
View.OnClickListener{
文本视图名称;
ImageView iv;
公共MyViewHolder(查看项目视图){
超级(项目视图);
name=(TextView)itemView.findViewById(R.id.name);
iv=(ImageView)itemView.findViewById(R.id.iv);
}
@凌驾
公共void onClick(视图v){
onItemClickListener.onItemClick(dataModelArrayList);
}
}
公共无效setOnItemClickListener(OnItemClickListener OnItemClickListener){
this.onItemClickListener=onItemClickListener;
}
公共接口侦听器{
void onItemClick(ArrayList图书);
}
下面给出的代码是我在setupRecycler()方法中使用上面给定适配器的片段oncreateview。我正在设置适配器,但无法获得单击功能

    @Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment

    view = inflater.inflate(R.layout.fragment_home, container, false);
    recyclerView = view.findViewById(R.id.recycler);
    fetchingJSON();

    return view;
}

private void fetchingJSON() {

    showSimpleProgressDialog(getActivity(), "Loading...","Loading",false);

    StringRequest stringRequest = new StringRequest(Request.Method.GET, URLs.URL_BOOKS,
            new Response.Listener<String>() {
                @Override
                public void onResponse(String response) {
                    Log.d("response", ">>" + response);

                    try {
                        removeSimpleProgressDialog();

                        JSONObject obj = new JSONObject(response);
                        if(obj.optString("status_code").equals("200")){

                            dataModelArrayList = new ArrayList<>();
                            JSONArray dataArray  = obj.getJSONArray("data");

                            for (int i = 0; i < dataArray.length(); i++) {
                                Books playerModel = new Books();
                                JSONObject dataobj = dataArray.getJSONObject(i);

                                playerModel.setImage(dataobj.getString("Image"));
                                playerModel.setBookFullName(dataobj.getString("BookFullName"));

                                dataModelArrayList.add(playerModel);
                            }
                            setupRecycler();
                        }

                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
            },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    //displaying the error in toast if occurrs
                    Toast.makeText(getActivity(), error.getMessage(), Toast.LENGTH_SHORT).show();
                }
            });

    // request queue
    RequestQueue requestQueue = Volley.newRequestQueue(getActivity());

    requestQueue.add(stringRequest);
}

private void setupRecycler(){

    rvAdapter= new MyRecyclerAdapter(getActivity().getApplicationContext(), dataModelArrayList);
    recyclerView.setAdapter(rvAdapter);
    recyclerView.setLayoutManager(new GridLayoutManager(getActivity(), getResources().getInteger(R.integer.number_of_grid_items)));
    rvAdapter.setOnItemClickListener(new MyRecyclerAdapter.OnItemClickListener() {
        @Override
        public void onItemClick(ArrayList<Books> Books) {
            //Toast.makeText(getActivity(), "lakshman", Toast.LENGTH_LONG).show();
            Toast.makeText(getActivity(), Books.getBookFullName(), Toast.LENGTH_LONG).show();
        }

        /*@Override
        public void onItemClick(Books Books) {
            Toast.makeText(getActivity(), Books.getBookFullName(), Toast.LENGTH_LONG).show();
        }*/
    });
}
@覆盖
创建视图上的公共视图(布局、充气机、视图组容器、,
Bundle savedInstanceState){
//为该碎片膨胀布局
视图=充气机。充气(R.layout.fragment\u home,container,false);
recyclerView=view.findViewById(R.id.recycler);
fetchingJSON();
返回视图;
}
私有void fetchingJSON(){
showSimpleProgressDialog(getActivity(),“加载…”,“加载”,false);
StringRequest StringRequest=新建StringRequest(Request.Method.GET,URL.URL\u BOOKS,
新的Response.Listener(){
@凌驾
公共void onResponse(字符串响应){
Log.d(“响应”、“>>”+响应);
试一试{
removeSimpleProgressDialog();
JSONObject obj=新的JSONObject(响应);
如果(对象OPT字符串(“状态代码”)等于(“200”){
dataModelArrayList=新建ArrayList();
JSONArray dataArray=obj.getJSONArray(“数据”);
对于(int i=0;i
我如何获取被单击的卡的位置并将特定值传递给其他活动


请帮我解决这个问题。

将下面的方法放入
onBindViewHolder

holder.itemView.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        if (viewItemInterface != null) {
            viewItemInterface.onItemClick(holder.getAdapterPosition(), bgImage.getCompressedImg());
        }
    }
});

您忘了在您的
MyViewHolder中抵制
OnClickListener

name.setOnClickListener(this);
iv.setOnClickListener(this);
您需要在
MyViewHolder()中设置
OnClickListener
,如下所示

public MyViewHolder(View itemView) { super(itemView); name = (TextView) itemView.findViewById(R.id.name); iv = (ImageView) itemView.findViewById(R.id.iv); name.setOnClickListener(this); iv.setOnClickListener(this); }