0
点赞
收藏
分享

微信扫一扫

Android RecyclerView注册每项的单击和长按事件监听

苦茶如歌 2024-05-14 阅读 8
android

1.在Adapter中定义监听接口

public class DeviceListAdapter extends RecyclerView.Adapter<DeviceViewHolder> {

    public interface OnItemClickListener {
        public void onItemClick(View view, int position);
        public void onItemLongClick(View view, int position);
    }
    private OnItemClickListener mOnItemClickListener;
    public void setOnItemClickListener (OnItemClickListener onItemClickListener) {
        this.mOnItemClickListener = onItemClickListener;
    }

可以在onBindViewHolder()方法中设置每项的监听

 @Override
    public void onBindViewHolder(@NonNull DeviceViewHolder holder, int position) {
        holder.itemView.setOnClickListener(v -> {
           if (mOnItemClickListener != null) {
               mOnItemClickListener.onItemClick(v, holder.getAdapterPosition());
           }
       });
        holder.itemView.setOnLongClickListener(v -> {
            if (mOnItemClickListener != null) {
                mOnItemClickListener.onItemLongClick(v, holder.getAdapterPosition());
            }
            
        });
    }

}

2.在Activity或者Fragment中设置监听

adapter.setOnItemClickListener(new DeviceListAdapter.OnItemClickListener() {

            @Override
            public void onItemClick(View view, int position) {
                Toast.makeText(requireActivity(), "onItemClick position = "+position, Toast.LENGTH_SHORT).show();
                
            }

            @Override
            public void onItemLongClick(View view, int position) {
                Toast.makeText(requireActivity(), "onItemLongClick position = "+position, Toast.LENGTH_SHORT).show();
            }
        });
        mBinding.deviceListRv.setAdapter(adapter);
举报

相关推荐

0 条评论