ios - 设置按钮的标签值以在单元格单击时取消隐藏

Question

我在 tableview 单元格上有一个按钮，它是以编程方式添加的，我使用 for 循环在每个单元格上添加了这个按钮，我也将它设置为“alpha 值 = 0”。我想要的是，当我点击特定的单元格时，它应该只显示该单元格上的按钮。

这是我所做的:

 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath;
{

        if(tableView == self.todayTableView)
    {
 for (int i = 0; i < first.count; i++)
        {
      record1 = [UIButton buttonWithType: UIButtonTypeRoundedRect];

            [record1 setAlpha:0];
            record1.frame = CGRectMake(250, 23, 25, 25);

            [record1 addTarget:self action:@selector(record:) forControlEvents:UIControlEventTouchUpInside];
            [record1 setImage:[UIImage imageNamed:@"microphone-g-ico.png"] forState:(UIControlStateNormal)];

[cell addSubview:record1];

}
 [record1 setTag:indexPath.row];
return cell;

}


-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    if(tableView == _todayTableView)
    {

        if(indexPath.row == 0)
            {

                if( record1.tag == 8)
                {
                    [record1 setAlpha:1];

                }

            }
    }
}

当我点击单元格时，它只在最后一个单元格上显示按钮。

请建议??

Answer 1

改变这个===>

if(tableView == self.todayTableView)
    {
 for (int i = 0; i < first.count; i++)
        {
      record1 = [UIButton buttonWithType: UIButtonTypeRoundedRect];

            [record1 setAlpha:0];
            record1.frame = CGRectMake(250, 23, 25, 25);

            [record1 addTarget:self action:@selector(record:) forControlEvents:UIControlEventTouchUpInside];
    [cell addSubview:record1];

}

到==>

  if(tableView == self.todayTableView)
    {
 for (__strong UIView *view in Cell.contentView.subviews) {
       if(view.tag==101){
        [view removeFromSuperview];
        view = nil;}
    }
      record1 = [UIButton buttonWithType: UIButtonTypeRoundedRect];
record1.tag=101;
            [record1 setAlpha:0];
            record1.frame = CGRectMake(250, 23, 25, 25);

            [record1 addTarget:self action:@selector(record:) forControlEvents:UIControlEventTouchUpInside];
            [record1 setImage:[UIImage imageNamed:@"microphone-g-ico.png"] forState:(UIControlStateNormal)];

[Cell.contentView addSubview:record1];

}

/********替换 didSelect********************/

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    if(tableView == _todayTableView)
    {
        UITableViewCell *cell = [tableView 
     cellForRowAtIndexPath: indexPath]; 

      for (__strong UIView *view in Cell.contentView.subviews) {
           if(view.tag==101){
           view.alpha=1;
           break;
        }


    }
}