[英]how to restart the timer in swift
我正在使用OTP屏幕制作应用程序。 我使用了计时器功能,还可以更改文本并再次显示计时器。 我的问题是我无法重新启动计时器。 它卡在00:10
。
这是我的以下代码,请帮助!
@IBOutlet weak var butttonName: ButtonDesign!
var countTimer:Timer!
var counter = 10
var restartTimer = false
var isTimerRunning = false
override func viewDidLoad() {
if isTimerRunning == false {
startTimer()}
}
func startTimer() {
self.countTimer = Timer.scheduledTimer(timeInterval: 1 , target: self, selector: #selector(OTPVerificationViewController.changeTitle), userInfo: nil, repeats: true)
isTimerRunning = true
}
@objc func changeTitle()
{
if counter != 0
{
butttonName.setTitle(timeString(time: TimeInterval(counter)), for: .normal)
counter -= 1
butttonName.isEnabled = false
} else {
countTimer.invalidate()
butttonName.setTitle("Resend", for: .normal)
}
}
@IBAction func verifyButton(_ sender: UIButton) {
if butttonName.currentTitle == "Resend" {
print("clicked when name is resend !!!")
if restartTimer == true {
startTimer()
restartTimer = false
}
} else {
print("clicked when it is name is verify")
self.performSegue(withIdentifier: "confirmPassword", sender: self)
}
}
我想在用户单击“重新发送”按钮时重新启动计时器,并希望在用户单击“验证”按钮时执行segue。 两个按钮都相同我正在运行时更改名称
您也需要重新启动计数器
if butttonName.currentTitle == "Resend" {
counter = 10
// startTimer()
}
只需使方法如下所示:
var count = 120
func updateCounter(){
if #available(iOS 10.0, *) {
Timer.scheduledTimer(withTimeInterval: 1.0, repeats: true, block: { (timer) in
if(self.count > 0){
self.lblTime.text = "\(self.count)"
self.count = self.count-1
}else {
self.lblTime.text = "0"
timer.invalidate()
self.btnresend.isHidden = false // in your case you can change the title of the button
}
})
} else {
// Fallback on earlier versions
Timer.scheduledTimer(timeInterval: 1.0, target: self, selector: #selector(self.timerMethod), userInfo: nil, repeats: true)
}
}
@objc func timerMethod() {
if(self.count > 0){
self.lblTime.text = "\(self.count)"
self.count = self.count-1
}else {
self.lblTime.text = "0:0"
self.btnresend.isHidden = false
}
}
从您要重新开始时间的地方,只需调用更新计数器方法
设置数量为120或您想要
self.count = 120
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