Question

我有看法。当我点击btnStartWork时，我想将按钮设置为隐藏（工作），标签startTime显示开始时间（工作）并且btnEndWork显示（工作）。当我点击btnEndWork时，我没有隐藏任何按钮，btnEndWork仍在显示。他还将结束时间设置为endTime标签，但也更新了startTime。这真的很有线。

class FirstViewController: UIViewController {

@IBOutlet weak var startTime: UILabel!
@IBOutlet weak var endTime: UILabel!
@IBOutlet weak var btnStartWorkLabel: UIButton!
@IBOutlet weak var btnEndWorkLabel: UIButton!

@IBAction func btnStartWork(_ sender: Any) {
    let currentdate = Date()
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "HH:mm"
    let convertedDate = dateFormatter.string(from: currentdate)

    startTime.text = "\(convertedDate)"

    btnStartWorkLabel.isHidden = true
    btnEndWorkLabel.isHidden = false
}
@IBAction func btnEndWork(_ sender: Any) {
    let currentdate = Date()
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "HH:mm"
    let convertedDate = dateFormatter.string(from: currentdate)

    endTime.text = "\(convertedDate)"

    btnStartWorkLabel.isHidden = false
    btnEndWorkLabel.isHidden = true
}
override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}


}

更新问题

如果点击btnEndWork，我怎么能节省时间，兼顾两次？

Answer 1

听起来有点连接错误，请查看接口构建器中的控制器以获取多个连接（如果您复制并粘贴标签或按钮，也会复制连接）并尝试添加：

print("Start button pressed")

到

@IBAction func btnStartWork(_ sender: Any)

和

print("End button pressed")

到

@IBAction func btnEndWork(_ sender: Any)

按下按钮时查看输出是否正确。

快速按钮隐藏/显示无法正常工作

1 个答案: