检测在UITableView中按下了哪个UIButton - Detecting which UIButton was pressed in a UITableView

问题：

I have a UITableView with 5 UITableViewCells . 我有一个UITableView 5个UITableViewCells 。 Each cell contains a UIButton which is set up as follows: 每个单元格包含一个UIButton ，其设置如下：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
     NSString *identifier = @"identifier";
     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
     if (cell == nil) {
         cell = [[UITableView alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];
         [cell autorelelase];

         UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(10, 5, 40, 20)];
         [button addTarget:self action:@selector(buttonPressedAction:) forControlEvents:UIControlEventTouchUpInside];
         [button setTag:1];
         [cell.contentView addSubview:button];

         [button release];
     }

     UIButton *button = (UIButton *)[cell viewWithTag:1];
     [button setTitle:@"Edit" forState:UIControlStateNormal];

     return cell;
}

My question is this: in the buttonPressedAction: method, how do I know which button has been pressed. 我的问题是：在buttonPressedAction:方法中，我如何知道按下了哪个按钮。 I've considered using tags but I'm not sure this is the best route. 我考虑过使用标签，但我不确定这是最好的路线。 I'd like to be able to somehow tag the indexPath onto the control. 我希望能够以某种方式将indexPath标记到控件上。

- (void)buttonPressedAction:(id)sender
{
    UIButton *button = (UIButton *)sender;
    // how do I know which button sent this message?
    // processing button press for this row requires an indexPath. 
}

What's the standard way of doing this? 这样做的标准方法是什么？

Edit: 编辑：

I've kinda solved it by doing the following. 我通过以下方式解决了这个问题。 I would still like to have an opinion whether this is the standard way of doing it or is there a better way? 我仍然想知道这是标准的做法还是有更好的方法？

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
     NSString *identifier = @"identifier";
     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
     if (cell == nil) {
         cell = [[UITableView alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];
         [cell autorelelase];

         UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(10, 5, 40, 20)];
         [button addTarget:self action:@selector(buttonPressedAction:) forControlEvents:UIControlEventTouchUpInside];
         [cell.contentView addSubview:button];

         [button release];
     }

     UIButton *button = (UIButton *)[cell.contentView.subviews objectAtIndex:0];
     [button setTag:indexPath.row];
     [button setTitle:@"Edit" forState:UIControlStateNormal];

     return cell;
}

- (void)buttonPressedAction:(id)sender
{
    UIButton *button = (UIButton *)sender;
    int row = button.tag;
}

What's important to note is that I can't set the tag in the creation of the cell since the cell might be dequeued instead. 需要注意的是，我无法在创建单元格时设置标记，因为单元格可能会出列。 It feels very dirty. 感觉很脏。 There must be a better way. 肯定有更好的办法。

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解决方案：

参考一： https://en.stackoom.com/question/7Yxv
参考二： https://stackoom.com/question/7Yxv