android - 获取 Item recyclerView 的文本

Question

我正在开发 Android 应用程序来完成它，但我在 recyclerView 中发现了问题，我不知道如何获取 recyclerView 的 Item 的文本？ (当我点击项目时)

Answer 1

首先，您需要创建一个监听器，将 View 和位置作为参数提供。它不像 listView 那样直接存在。为此，您可以创建一个这样的类:

public class RecyclerClickListener implements RecyclerView.OnItemTouchListener {

private OnItemClickListener mListener;
    GestureDetector mGestureDetector;

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

public RecyclerClickListener(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.getChildLayoutPosition(childView));
        return true;
    }
    return false;
}

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

@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {

}

}

然后在你的 Activity 中:

 recyclerView.addOnItemTouchListener( // and the click is handled
            new RecyclerClickListener(getActivity(), new RecyclerClickListener.OnItemClickListener() {
                @Override public void onItemClick(View view, int position) {
                    Log.d("click item", String.valueOf(position));   
                    TextView textView = (TextView) view.findViewById(R.id.YourTextViewID);
                            Log.d("test",textView.getText().toString());                              
                    }
                }
            }));