我做了一個onClickListener我recyclerView但只是沒有工作

Question

這是我的主要活動

private void setUpGUI() { 
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
    setSupportActionBar(toolbar); 
    cardView = (CardView) findViewById(R.id.cardView); 
    recyclerView = (RecyclerView) findViewById(R.id.recylerView); 
    adapter = new ItemAdapter(new ItemAdapter.ItemClickListener() { 
     @Override 
     public void onItemClicked(TodoItem item) { 
      setUpSecondPopup(item); 
      Log.d(TAG, "on item click"); 
      Uri uri = Uri.parse(TodoItemsContentProvider.CONTENT_URI + "/" + item.getId()); 

      getContentResolver().update(uri, item.toContentValues(), null, null); 
     } 
    }); 

    recyclerView.setAdapter(adapter); 
    recyclerView.setLayoutManager(new LinearLayoutManager(this)); 
    final FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); 
    fab.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      showAddItemPopup(); 
     } 
    }); 

這是我的適配器類

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


    private static final String TAG = "item adapter"; 
    private List<TodoItem> items = new ArrayList<>(); 
    private ItemClickListener itemClickListener; 

    public ItemAdapter(ItemClickListener listener) { 
     itemClickListener = listener; 
    } 

    public void addItem(TodoItem item) { 
     if (!items.contains(item)) { 
      items.add(item); 
      Collections.sort(items); 
      notifyItemInserted(items.indexOf(item)); 
     } 
    } 

    public void addItems(Collection<TodoItem> newItems) { 

     for (TodoItem item : newItems) { 
      if (!items.contains(item)) { 
       items.add(item); 
      } 
     } 
     Collections.sort(items); 
     notifyDataSetChanged(); 
    } 

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

    public void removeItem(int position) { 
     items.remove(position); 
     notifyItemRemoved(position); 
    } 

    // This listener listens for clicks to the viewholder. The viewholder passes back the position it is. 
    private final ClickListener clickListener = new ClickListener() { 
     @Override 
     public void onItemClicked(int position) { 
      Log.d(TAG, "on click adapter"); 
      // Get the item that was clicked 
      TodoItem item = items.get(position); 


      // Set the completed state 
      item.setCompleted(!item.isCompleted()); 

      //Update the UI 
      notifyItemChanged(position); 

      // Pass the item back the the itemclicklistener 
      itemClickListener.onItemClicked(item); 
     } 
    }; 


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

    @Override 
    public void onBindViewHolder(ViewHolder holder, int position) { 
     TodoItem item = items.get(position); 
     holder.textView.setText(item.getText()); 
     holder.subTextViewA.setText(item.getSubText()); 
     holder.checkBox.setChecked(item.isCompleted()); 

     //holder.backgroundLayout.setBackgroundColor(Color.parseColor("#ec48e418")); 
    } 

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


    // The view holder listens to clicks on the 
    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener { 
     // private RelativeLayout backgroundLayout; 
     final TextView textView, subTextViewA; 
     final CheckBox checkBox; 
     final ClickListener clickListener; 

     public ViewHolder(View itemView, ClickListener clickListener) { 
      super(itemView); 
      textView = (TextView) itemView.findViewById(R.id.textView); 
      subTextViewA = (TextView) itemView.findViewById(R.id.subTextViewA); 
      checkBox = (CheckBox) itemView.findViewById(R.id.checkBox); 
      //backgroundLayout = (RelativeLayout) itemView.findViewById(R.id.backgroundLayout); 
      itemView.setOnClickListener(this); 
      this.clickListener = clickListener; 
     } 

     @Override 
     public void onClick(View v) { 
      clickListener.onItemClicked(getAdapterPosition()); 
     } 
    } 

    // Private listener fot the adapter to know about view clicks 
    private interface ClickListener { 
     void onItemClicked(int position); 
    } 

    // Public listener to pass the item back to the activity 
    public interface ItemClickListener { 
     void onItemClicked(TodoItem item); 
    } 
} 

Answer 1

這裏：

itemClickListener.onItemClicked(item); 

不要將點擊偵聽器設置爲RecyclerView的任何視圖，但會調用onItemClicked方法使用itemClickListener點擊RecyclerView時不會發生的對象。

坐落在onCreateViewHolder方法點擊監聽器爲：

View v = LayoutInflater.from(parent.getContext()).inflate(
          R.layout.todo_list_item, parent, false); 
v.setOnClickListener(itemClickListener); 
return new ViewHolder(v, clickListener);