ios - 如何在Objective-C中使用发件人属性

Question

我正在使用两个按钮来执行相同的操作。如何使用IBAction函数中的“发送者”来识别按下了哪个按钮？ (每个按钮都有一个不同的标记)

这是我想做的:

- (IBAction)addItemInParent:(id)sender {
  NSInteger choice = sender.tag;
}

我希望这个问题有道理!

Answer 1

- (IBAction)addItemInParent:(id)sender 
{
    UIButton *buttonPressed = (UIButton *)sender;

    if (buttonPressed.tag == 123)
    {
        //button with tag 123 was pressed
    }else if (buttonPressed.tag == 124
    {
        //button with tag 124 was pressed
    }
}

只需将我的123和124替换为实际的按钮标签即可。