如何在Android RecyclerView中获取单击项的文本

Question

I am developing an app displaying list of items containing text and images using volley, fragment and recyclerview. The list showing is successfully. But i want to know how to implement for on clicking the product i want to get the name in list (ImageTitleNameView is represnted in my code). The below shows my code.

FriendsFragment.java

public class FriendsFragment extends android.support.v4.app.Fragment {



List<GetDataAdapter> GetDataAdapter1;

RecyclerView recyclerView;

RecyclerView.LayoutManager recyclerViewlayoutManager;

RecyclerView.Adapter recyclerViewadapter;

String GET_JSON_DATA_HTTP_URL = "http://192.168.xx.x/1.php";
String JSON_IMAGE_TITLE_NAME = "image_title";
String JSON_IMAGE_URL = "image_url";

JsonArrayRequest jsonArrayRequest ;

RequestQueue requestQueue ;

public FriendsFragment() {
    // Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);


}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_friends, container, false);


    GetDataAdapter1 = new ArrayList<>();
    recyclerView = (RecyclerView) rootView.findViewById(R.id.recyclerview1);
    recyclerView.setHasFixedSize(true);
    recyclerViewlayoutManager = new LinearLayoutManager(getContext());
    recyclerView.setLayoutManager(recyclerViewlayoutManager);






    JSON_DATA_WEB_CALL();



    // Inflate the layout for this fragment
    return rootView;
}

public void JSON_DATA_WEB_CALL(){

    jsonArrayRequest = new JsonArrayRequest(GET_JSON_DATA_HTTP_URL,

            new Response.Listener<JSONArray>() {
                @Override
                public void onResponse(JSONArray response) {

                    Log.d("LOGTAG", "Response :"+response);

                    JSON_PARSE_DATA_AFTER_WEBCALL(response);
                }
            },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {

                }
            });

    requestQueue = Volley.newRequestQueue(getContext());

    requestQueue.add(jsonArrayRequest);
}


public void JSON_PARSE_DATA_AFTER_WEBCALL(JSONArray array){

    for(int i = 0; i<array.length(); i++) {

        GetDataAdapter GetDataAdapter2 = new GetDataAdapter();

        JSONObject json = null;
        try {

            json = array.getJSONObject(i);

            GetDataAdapter2.setImageTitleNamee(json.getString(JSON_IMAGE_TITLE_NAME));

            GetDataAdapter2.setImageServerUrl(json.getString(JSON_IMAGE_URL));

        } catch (JSONException e) {

            e.printStackTrace();
        }
        GetDataAdapter1.add(GetDataAdapter2);
    }

    recyclerViewadapter = new RecyclerViewAdapter(GetDataAdapter1, getContext());

    recyclerView.setAdapter(recyclerViewadapter);

}

@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);
}

@Override
public void onDetach() {
    super.onDetach();
}
}

GetDataAdapter.java

public class GetDataAdapter {

public String ImageServerUrl;
public String ImageTitleName;

public String getImageServerUrl() {
    return ImageServerUrl;
}

public void setImageServerUrl(String imageServerUrl) {
    this.ImageServerUrl = imageServerUrl;
}

public String getImageTitleName() {
    return ImageTitleName;
}

public void setImageTitleNamee(String Imagetitlename) {
    this.ImageTitleName = Imagetitlename;
}

}

SampleHolder.java

public class SampleHolder extends RecyclerView.ViewHolder {
public SampleHolder(View itemView) {
    super(itemView);
}
}

RecyclerViewAdapter.java

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

Context context;

List<GetDataAdapter> getDataAdapter;

ImageLoader imageLoader1;

private final View.OnClickListener mOnClickListener = new MyOnClickListener();


public RecyclerViewAdapter(List<GetDataAdapter> getDataAdapter, Context context){

    super();
    this.getDataAdapter = getDataAdapter;
    this.context = context;
}

@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

    View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.recyclerview_items, parent, false);
    v.setOnClickListener(mOnClickListener);
    ViewHolder viewHolder = new ViewHolder(v);

        return viewHolder;
}
@Override
public void onBindViewHolder(ViewHolder Viewholder, int position) {

    GetDataAdapter getDataAdapter1 =  getDataAdapter.get(position);

    Viewholder.ImageTitleNameView.setText(getDataAdapter1.getImageTitleName());
    Log.d("LOGTAG", "Name :"+getDataAdapter1.getImageTitleName());

    imageLoader1 = ServerImageParseAdapter.getInstance(context).getImageLoader();

    imageLoader1.get(getDataAdapter1.getImageServerUrl(),
            ImageLoader.getImageListener(
                    Viewholder.networkImageView,//Server Image
                    R.mipmap.ic_launcher,//Before loading server image the default showing image.
                    android.R.drawable.ic_dialog_alert //Error image if requested image dose not found on server.
            )
    );

    Viewholder.networkImageView.setImageUrl(getDataAdapter1.getImageServerUrl(), imageLoader1);

    Viewholder.ImageTitleNameView.setText(getDataAdapter1.getImageTitleName());

}

@Override
public int getItemCount() {

    return getDataAdapter.size();
}

class ViewHolder extends RecyclerView.ViewHolder{



    public TextView ImageTitleNameView;
    public NetworkImageView networkImageView ;

    public ViewHolder(View itemView) {

        super(itemView);

        ImageTitleNameView = (TextView) itemView.findViewById(R.id.textView_item) ;

        networkImageView = (NetworkImageView) itemView.findViewById(R.id.VollyNetworkImageView1) ;

    }
}

private class MyOnClickListener implements View.OnClickListener {

    @Override
    public void onClick(View v) {


        //Log.d("LOGTAG", "clicked : name "+ );

    }
}
}

ServerImageParseAdapter.java

public class ServerImageParseAdapter {

public static ServerImageParseAdapter SIAdapter;

public static Context context1;

public RequestQueue requestQueue1;

public ImageLoader Imageloader1;

public Cache cache1 ;

public Network networkOBJ ;

LruCache<String, Bitmap> LRUCACHE = new LruCache<String, Bitmap>(30);

private ServerImageParseAdapter(Context context) {

    this.context1 = context;

    this.requestQueue1 = RQ();

    Imageloader1 = new ImageLoader(requestQueue1, new ImageLoader.ImageCache() {

        @Override
        public Bitmap getBitmap(String URL) {

            return LRUCACHE.get(URL);
        }

        @Override
        public void putBitmap(String url, Bitmap bitmap) {

            LRUCACHE.put(url, bitmap);
        }
    });
}

public ImageLoader getImageLoader() {

    return Imageloader1;
}

public static ServerImageParseAdapter getInstance(Context SynchronizedContext) {

    if (SIAdapter == null) {

        SIAdapter = new ServerImageParseAdapter(SynchronizedContext);
    }
    return SIAdapter;
}

public RequestQueue RQ() {

    if (requestQueue1 == null) {

        cache1 = new DiskBasedCache(context1.getCacheDir());

        networkOBJ = new BasicNetwork(new HurlStack());

        requestQueue1 = new RequestQueue(cache1, networkOBJ);

        requestQueue1.start();
    }
    return requestQueue1;
}
}

Answer 1

i want to know how to implement for on clicking the product i want to get the name in list

Because click listener is set to recyclerview layout and other Views are child View of recyclerview View. parameter of onClick method is instance of The view that was clicked.

Use v to access clicked row TextView data:

@Override
public void onClick(View v) {
     TextView textView = (TextView) v.findViewById(R.id.textView_item) ;
     Log.d("LOGTAG", "clicked : name "+textView.getText().toString() );
}

Answer 2

class ViewHolder extends RecyclerView.ViewHolder{

    public TextView imageTitleNameView;
    public NetworkImageView networkImageView ;

    public ViewHolder(View itemView) {

        super(itemView);

        imageTitleNameView = (TextView) itemView.findViewById(R.id.textView_item) ;

        networkImageView = (NetworkImageView) itemView.findViewById(R.id.VollyNetworkImageView1) ;

        networkImageView.setOnClickListener(..);
        imageTitleNameView.setOnClickListener(..);

    }
}