RecycleView点击事件

最新推荐文章于 2025-08-06 09:00:12 发布

weixin_44308983

最新推荐文章于 2025-08-06 09:00:12 发布

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本文链接：https://blog.youkuaiyun.com/weixin_44308983/article/details/88318679

本文详细介绍如何在Android的RecyclerView中实现自定义点击与长按监听功能，通过创建Adapter内的接口，实现item的点击和长按事件处理，包括数据删除和通知适配器更新。

1.在Adapter里面自定义一个接口,然后在onBindViewHolder中调用这个方法

@Override
  public void onBindViewHolder(MainActivity.VH holder, final int position) {
    holder.tv.setText(mList.get(position));
 
    //自己做item点击
    holder.itemView.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        if (onItemClickListener != null)
          onItemClickListener.onClick(position);
      }
    });
    holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
      @Override
      public boolean onLongClick(View v) {
        if (onItemLongClickListener != null)
          onItemLongClickListener.onLongClick(position);
        //返回false会在长安结束后继续点击
        return true;
      }
    });
  }

public interface OnItemClickListener {
    void onClick(int position);
  }
 
  OnItemClickListener onItemClickListener;
 
 
  public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
    this.onItemClickListener = onItemClickListener;
  }
 
  public interface OnItemLongClickListener {
    void onLongClick(int position);
  }
 
  OnItemLongClickListener onItemLongClickListener;
 
  public void setOnItemLongClickListener(OnItemLongClickListener onItemLongClickListener) {
    this.onItemLongClickListener = onItemLongClickListener;
  }
}

2.在MainActivity中

adapter.setOnItemClickListener(new MyAdapter.OnItemClickListener() {
      @Override
      public void onClick(int position) {
        Toast.makeText(getBaseContext(), "点击的是" + position + "的itemClick", Toast.LENGTH_SHORT).show();
      }
    });
    adapter.setOnItemLongClickListener(new MyAdapter.OnItemLongClickListener() {
      @Override
      public void onLongClick(int position) {
        //长按删除数据
        mList.remove(position);
        adapter.notifyDataSetChanged();
      }
    });
    rv.setAdapter(adapter);
 
    //布局管理器
    rv.setLayoutManager(new StaggeredGridLayoutManager(5, StaggeredGridLayoutManager.VERTICAL));
  }