Question

我在带有cardview的recyclerview上发现了这个教程但是我无法添加onitemclick监听器..我想点击这些项目并转到另一个活动。请帮我。将受到高度赞赏。谢谢

http://pulse7.net/android/how-to-use-recyclerview-with-cardview-in-android-application/

Answer 1

这可以轻松完成：

在ViewHolder类中：

.
.
...
    public class ViewHolder extends RecyclerView.ViewHolder {
        ImageView cardimage;
        TextView cardtitle;
        Flower Flower;
        public ViewHolder(View itemView) {
            super(itemView);
            cardimage = (ImageView) itemView.findViewById(R.id.cardimage);
            cardtitle = (TextView) itemView.findViewById(R.id.cardtitle);
        }
    }

放入构造函数，（在超级（...）调用之后）：

itemView.setOnClickListener(new CardOnClickListener());

在任何你想要的地方创建这个类

class CardOnClickListener implements View.OnClickListener {
    @Override
    public void onClick(View v) {
       // TODO Handle item click
       Log.e("Clicked !!!");
    }
}

我之前已经阅读过更好的方法，但我喜欢这种方式很容易而且不复杂。

Answer 2

您可以使用侦听器创建自己的类

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;

public class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener {

    private OnItemClickListener mListener;
    private GestureDetector mGestureDetector;

    public RecyclerItemClickListener(Context context, final RecyclerView recyclerView, OnItemClickListener listener) {
        mListener = listener;

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

            @Override
            public void onLongPress(MotionEvent e) {
                View childView = recyclerView.findChildViewUnder(e.getX(), e.getY());

                if (childView != null && mListener != null) {
                    mListener.onItemLongClick(childView, recyclerView.getChildAdapterPosition(childView));
                }
            }
        });
    }

    @Override
    public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
        View childView = rv.findChildViewUnder(e.getX(), e.getY());

        if (childView != null && mListener != null && mGestureDetector.onTouchEvent(e)) {
            mListener.onItemClick(childView, rv.getChildAdapterPosition(childView));
        }

        return false;
    }

    @Override
    public void onTouchEvent(RecyclerView rv, MotionEvent e) {

    }

    @Override
    public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {

    }

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

        public void onItemLongClick(View view, int position);
    }

}

然后在您的回收视图中：

mRecyclerView.addOnItemTouchListener(new RecyclerItemClickListener(getContext(), mRecyclerView, new RecyclerItemClickListener.OnItemClickListener() {
    @Override
    public void onItemClick(View view, int position) {
       // click
    }

    @Override
    public void onItemLongClick(View view, int position) {
      // long click
    }
}));

@Abhinav Puri的回答是正确的，但我写了这个解决方案以备你想要并长按一下。

点击listview回收视图的项目后打开新的活动

2 个答案: