Ios 无法停止NSTimer
我知道在stackoverflow上有很多这样的问题,但我有。我仍然无法停止我的NSTimer。下面是我的代码:Ios 无法停止NSTimer,ios,swift,ios8,nstimer,Ios,Swift,Ios8,Nstimer,我知道在stackoverflow上有很多这样的问题,但我有。我仍然无法停止我的NSTimer。下面是我的代码: func setupTimerForRecord(){ dispatch_async(dispatch_get_main_queue(), { () -> Void in var timer = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: Selector("ti
func setupTimerForRecord(){
dispatch_async(dispatch_get_main_queue(), { () -> Void in
var timer = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: Selector("timeStick:"), userInfo: nil, repeats: true)
})
}
和功能停止:
func resetTimmerLabel(){
dispatch_async(dispatch_get_main_queue(), { () -> Void in
self.timer?.invalidate()
self.timer = nil
self.timeMin = 0
self.timeSec = 0
var timeString = String(format: "%02d:%02d", arguments: [self.timeMin, self.timeSec])
self.lblTimer.text = timeString
})
}
功能选择器:
func timeStick(timer: NSTimer){
print("timeStick")
self.timeSec++
if self.timeSec == 60{
self.timeSec = 0
self.timeMin++
}
var timeString = String(format: "%02d:%02d", arguments: [self.timeMin, self.timeSec])
lblTimer.text = timeString
}
单击按钮时调用setupTimerForRecord。而视图中的重置timermerlabel将消失,但功能timeStick仍在运行。请帮帮我
编辑对不起,我犯了个愚蠢的错误。问题是我创建了另一个新的单定时器var定时器。它必须将self.timer放入函数中setupTimerForRecord
var timer = NSTimer()
func setupTimerForRecord(){
dispatch_async(dispatch_get_main_queue(), { () -> Void in
self.timer = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: Selector("timeStick:"), userInfo: nil, repeats: true)
})
}
全局创建计时器变量。我的意思是在所有功能之外。最佳做法是在viewDidLoad()之前创建所有变量,这些变量通常是其他功能所需要的。我认为这是因为您在setupTimerForRecord()中创建了一个名为timer的重复局部变量。改为将其设置为self.timer
func setupTimerForRecord(){
dispatch_async(dispatch_get_main_queue(), { () -> Void in
self.timer = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: Selector("timeStick:"), userInfo: nil, repeats: true)
})
}
你说得对。我会尽快接受你的回答。谢谢。不是我否决投票,而是scheduledTimerWithTimeInterval方法将创建并返回计时器。它不需要添加var timer=NSTimer()