recycleViewを持つ要素の個々のクリックを処理する

Question

recycleView/CardLayout、i followeedチュートリアルで単純なアプリケーションを構築しています。

カードのクリックには多くの質問がありますが、ユーザーがタイトルをクリックしたときやユーザーが画像をクリックしたときに別のアクションを処理する必要があるのは、の画像です。

これは私が現時点で持っているものです。

public class SimiliarPlantsAdapter extends RecyclerView.Adapter<SimiliarPlantsAdapter.PlantViewHolder>{ 

    ArrayList<Plant> plants = new ArrayList<Plant>(); 
    Context context; 

    public static class PlantViewHolder extends RecyclerView.ViewHolder { 
     CardView cv; 
     TextView plantName; 
     CheckBox plantCheck; 
     ImageView plantPhoto; 

     PlantViewHolder(View itemView) { 
      super(itemView); 
      cv = (CardView)itemView.findViewById(R.id.cv); 
      plantName = (TextView)itemView.findViewById(R.id.plantName); 
      plantCheck = (CheckBox)itemView.findViewById(R.id.plantCheck); 
      plantPhoto = (ImageView)itemView.findViewById(R.id.plantPhoto); 
     } 

    } 

    @Override 
    public PlantViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) { 
     View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.similiar_photo_row, viewGroup, false); 
     PlantViewHolder pvh = new PlantViewHolder(v); 
     return pvh; 
    } 

    @Override 
    public void onBindViewHolder(PlantViewHolder holder, int position) { 
     holder.plantName.setText(plants.get(position).getSpecie()); 
     holder.plantCheck.setText("Are you sure this is the plant?"); 


     Log.d("foto",String.valueOf(holder.plantName)); 


     String urlFoto = "http://10.0.2.2:3000/images/" + holder.plantName.getText().toString() + "/Thumbnail.jpg"; 
     Picasso.with(context) 
       .load(urlFoto) 
       .resize(250, 250) 
       .into(holder.plantPhoto); 

    } 

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

    public SimiliarPlantsAdapter(ArrayList<Plant> plants,Context context) { 
     this.plants = plants; 
     this.context = context; 
    } 

    public void onAttachedToRecyclerView(RecyclerView recyclerView) { 
     super.onAttachedToRecyclerView(recyclerView); 
    } 

} 

MY活動

public class SimiliarPhotos extends AppCompatActivity implements IResult { 

    RecyclerView rv; 
    LinearLayoutManager llm; 
    ArrayList<Plant> plants = new ArrayList<Plant>(); 
    SimiliarPlantsAdapter adapter; 

    VolleyService mVolleyService; 
    IResult mResultCallback = null; 
    final String GETREQUEST = "GETCALL"; 

    //login url connection 
    final String URL = "http://10.0.2.2:3000/plants"; 


    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_similiar_photos); 

     rv = (RecyclerView)findViewById(R.id.rv); 
     llm = new LinearLayoutManager(this); 
     llm.setAutoMeasureEnabled(true); 
     rv.setLayoutManager(llm); 


     initializeAdapter(); 

     initVolleyCallback(); 

     mVolleyService = new VolleyService(mResultCallback,this); 

     mVolleyService.getDataVolley(GETREQUEST,URL); 
    } 


    @Override 
    public void notifySuccess(String requestType, JSONObject response) { 
     Log.d("resposta",response.toString()); 
    } 

    @Override 
    public void notifySuccess(String requestType, JSONArray response) { 
     Log.d("resposta",response.toString()); 
    } 

    @Override 
    public void notifyError(String requestType, VolleyError error) { 
     Log.d("resposta",error.toString()); 
    } 

    void initVolleyCallback(){ 
     mResultCallback = new IResult() { 
      @Override 
      public void notifySuccess(String requestType, JSONObject response) { 
      } 

      @Override 
      public void notifySuccess(String requestType, JSONArray response) { 
       Plant plant; 
       Log.d("ENTERED","ENTEREDHERE1"); 
       // iterate over the JSONArray response 
       for (int i=0; i < response.length(); i++) { 
        try { 
         JSONObject object = response.getJSONObject(i); // get the individual object from JSONArray 
         int id = Integer.parseInt(object.getString("id")); // get the unique identifier from the object 
         String specie = object.getString("specie"); // get the name of the specie from the object 
         String description = object.getString("description"); // get the description of the object 
         plant = new Plant(id,specie,description); // construct the object 
         Log.d("plant",String.valueOf(plant)); 
         plants.add(plant); // add the object to the arraylist so it can be used on the cardLayout 

        } catch (JSONException e) { 
         Log.d("ENTERED",e.toString()); 
         e.printStackTrace(); 
        } 
       } 
       adapter.notifyDataSetChanged(); 
      } 

      @Override 
      public void notifyError(String requestType, VolleyError error) { 
       Log.d("resposta",error.toString()); 
      } 
     }; 
    } 

    public void initializeAdapter(){ 
     Log.d("plants",String.valueOf(plants.size())); 
     adapter = new SimiliarPlantsAdapter(plants,SimiliarPhotos.this); 
     rv.setAdapter(adapter); 
    } 

} 

私は、データを取得するので、ボレーinitが、質問のそれほど重要でない要求であり、正しく

Answer 1

最初に、Adapterのクリックを処理してコンストラクターに追加するインターフェイスを追加する必要がありますR：

holder.plantName.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View view) { 
        if (onItemClickListener != null) { 
         onItemClickListener.onTitleClicked(holder.getAdapterPosition(), plants.get(position).getSpecie(), view); 
        } 
       } 
      }); 

holder.plantPhoto.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View view) { 
        if (onItemClickListener != null) { 
         onItemClickListener.onItemClicked(holder.getAdapterPosition(), view); 
        } 
       } 
      }); 
     } 
    } 

そして最後に、あなたのActivityでインターフェイスを実装：

public class SimiliarPlantsAdapter extends RecyclerView.Adapter<SimiliarPlantsAdapter.PlantViewHolder>{ 

    private OnItemClickListener listener; 

    public interface OnItemClickListener { 
      void onTitleClicked(int position, String title, View clickedview); 
      void onImageClicked(int position, View clickedview); 
     } 

    } 
    public SimiliarPlantsAdapter(ArrayList<Plant> plants,Context context, OnItemClickListener listener) { 
     this.plants = plants; 
     this.context = context; 
     this.listener = listener; 
    } 

今、あなたはonBindViewHolder中にあなたonClick方法でこれらを設定する必要が

public class SimiliarPhotos extends AppCompatActivity implements IResult, SimiliarPlantsAdapter.OnItemClickListener { 

    @Override 
     public void onTitleClicked(int position, String title, View clickedView) { 
      //Handle your title click here 
     } 

     @Override 
     public void onImageClicked(int position, View clickedView) { 
      //Handle your image click here 
     } 

public void initializeAdapter(){ 
     Log.d("plants",String.valueOf(plants.size())); 
     adapter = new SimiliarPlantsAdapter(plants,SimiliarPhotos.this, SimilarPhotos.this); 
     rv.setAdapter(adapter); 
}