Ios 按下按钮时发生的操作-swift

在我的swift项目中，我有一个按钮，我想在标签上打印这个按钮被按下的时间

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如何解决此问题？

以下是如何以编程方式创建按钮，并在按下按钮时在标签中打印文本

override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        let myFirstButton = UIButton()
        myFirstButton.setTitle("Tap Me", forState: .Normal)
        myFirstButton.setTitleColor(UIColor.blueColor(), forState: .Normal)
        myFirstButton.frame = CGRectMake(10, 50, 320, 40)
        myFirstButton.addTarget(self, action: "pressed:", forControlEvents: .TouchUpInside)
        self.view.addSubview(myFirstButton)
    }

func pressed(sender: UIButton!) 
{
   yourLabelName.text=@"Your Text is here"  
}

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除了DHEERAJ的答案之外，您只需在按下的

func（发送者：ui按钮！）

中添加以下代码即可实现所需功能：

let date = NSDate()
let dateFormatter = NSDateFormatter()
dateFormatter.dateStyle = .MediumStyle
let dateString = dateFormatter.stringFromDate(date)
yourLabelName.text = dateString

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希望这可能会有所帮助。

要显示按钮被单击的次数，您可以对变量进行分类

class SampleViewController: UIViewController {

var counter : Int!
@IBOutlet weak var yourLabelName: UILabel!

override func viewDidLoad() {
    super.viewDidLoad()

    // Do any additional setup after loading the view, typically from a nib.
    counter = 1
    let myFirstButton = UIButton(frame: CGRectMake(10, 50, 320, 40))

    myFirstButton.setTitle("Tap Me", forState: .Normal)
    myFirstButton.setTitleColor(UIColor.blueColor(), forState: .Normal)
    myFirstButton.addTarget(self, action: "pressed:",forControlEvents: .TouchUpInside)
    self.view.addSubview(myFirstButton)
}

func pressed(sender: UIButton!)
{
    yourLabelName.text = "Pressed : \(counter)"
    counter = counter + 1
}

---

}

到目前为止您尝试了什么？请尝试您的label.text=NSDate.description（）