android - 显示在 recyclerview 中点击的项目的详细信息

Question

我能够检测到单个回收站 View 项目的位置，并能够在点击时对其进行烘烤。现在我不想继续进行新 Activity 并显示所点击项目的详细信息，我该怎么做？ 比如说，我正在显示联系人姓名列表并点击我不想打开一个新 Activity 显示该联系人的详细信息...... 至少，我怎样才能在点击那个联系人项目时再次 toast 联系人姓名，点击时的当前变量如何对我可用？ 我计划 bundle 这些变量并发送它们并在那里显示。

我知道我必须在这里实现

public class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener {  
private OnItemClickListener mListener;

public interface OnItemClickListener {
    public void onItemClick(View view, int position){
      //i know i have to implement here 

    }


}

Answer 1

在我这样做之前，我遇到了同样的问题。

创建了一个客户 RecyclerListener:

public class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener {
    private OnItemClickListener mListener;

    public interface OnItemClickListener {
        public void onItemClick(View view, int position);
    }

    GestureDetector mGestureDetector;

    public RecyclerItemClickListener(Context context, OnItemClickListener listener) {
        mListener = listener;
        mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
            @Override
            public boolean onSingleTapUp(MotionEvent e) {
                return true;
            }
        });
    }

    @Override
    public boolean onInterceptTouchEvent(RecyclerView view, MotionEvent e) {
        View childView = view.findChildViewUnder(e.getX(), e.getY());
        if (childView != null && mListener != null && mGestureDetector.onTouchEvent(e)) {
            mListener.onItemClick(childView, view.getChildAdapterPosition(childView));
        }
        return false;
    }

    @Override
    public void onTouchEvent(RecyclerView view, MotionEvent motionEvent) {
    }

    @Override
    public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {

    }
}

然后在 recyclerView 的 Activity 中:

private void registerCallClickBack() {

        recyclerView.addOnItemTouchListener(new RecyclerItemClickListener(getActivity().getApplicationContext(), new RecyclerItemClickListener.OnItemClickListener() {
            @Override
            public void onItemClick(View view, int position) {
                Intent intent = new Intent(this, DetailActivity.class);
                intent.putExtra("contact_name", customList.get(position).getName());
                intent.putExtra("contact_image", customList.get(position).getImage());
                intent.putExtra("contact_tel", customList.get(position).getMobile());
                intent.putExtra("contact_email", customList.get(position).getEmail());
                startActivity(intent);
            }
        }));
    }

其中 customList 是我的联系人 ArrayList。

希望对你有帮助