Question

我的活动有两个不同的回收视图，使用两个不同的适配器。 Recyclerviews是否有办法相互沟通？

例如：

userChoiceRecyclerView（第二个recyclerview）有一堆显示文本的cardview对象

displayRecyclerView（first recyclerview）在userChoiceRecyclerView中单击cardview对象之前没有任何信息，当您单击displayRecyclerView中的对象时，它将删除此循环器中的cardview对象。

public class AnswerRecyclerViewAdapter extends RecyclerView.Adapter<AnswerViewHolder> {
    private Context mContext;
    private char[] mCharacterNameToChar;

    public AnswerRecyclerViewAdapter(Context context, String name) {
        mContext = context;
        mCharacterNameToChar = name.toUpperCase().toCharArray();
    }

    public void answerUpdateName(String name) {
        mCharacterNameToChar = name.toUpperCase().toCharArray();
        notifyDataSetChanged();
    }

    @Override
    public AnswerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        ...
        return viewHolder;
    }

    @Override
    public void onBindViewHolder(AnswerViewHolder holder, int position) {
        holder.mTextView.setText(...);
        holder.mCardView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                  // removes the cardviews that was updated from the 
                  // userChoiceRecyclerView
            }
        });
    }

    @Override
    public int getItemCount() {
        return mCharacterNameToChar.length;
    }
}

userChoiceRecyclerView与此recyclerview基本相同，只是它已经在cardviews中有信息。我想知道如何让回收者彼此沟通

Answer 1

首先，您需要为ReRecyclerView中的每个对象添加 Clicklistener 。

您需要在适配器中添加此代码：

private static MyClickListener myClickListener;
.
.
public void setOnItemClickListener(MyClickListener myClickListenerHolder) {
    myClickListener = myClickListenerHolder;
}
.
.
public interface MyClickListener {
     void onItemClick(int position, View v);
}

并在 cardView ClickListener中添加：

holder.mCardView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
              // removes the cardviews that was updated from the 
              myClickListener.onItemClick(position,view);
        }
    });

现在在 MainActivity.java ，您可以通过在主广告的 onResume 中添加对象来控制对象点击次数。

示例：

RecyclerView.Adapter SecondAdapter, displayRecyclerAdapter;
RecyclerView displayRecyclerView= (RecyclerView) findViewById(R.id.my_recycler_view);
.
.
@Override
protected void onResume() {
    super.onResume();
    ((AnswerRecyclerViewAdapter) SecondAdapter).setOnItemClickListener(new  AnswerRecyclerViewAdapter
            .MyClickListener() {
        @Override
        public void onItemClick(int position, View v) {
            //from here you can send data to your other RecyclerView like this 
            displayRecyclerAdapter = new displayRecyclerAdapterClass(Context,SomeString);
            displayRecyclerView.setAdapter(displayRecyclerAdapter);
        }
    });
}

我希望这可以帮到你^ _ ^

有两种不同的RecyclerView可以相互通信吗？

1 个答案: