2016-06-19 3 views

답변

-1

이 시도 :

let label = UILabel() 

override func viewDidLoad() { 
    super.viewDidLoad() 
    label.frame = CGRectMake(320, 100, 200, 60) 
    label.text = "This is my music line" 
    self.view!.addSubview(label) 
    NSTimer.scheduledTimerWithTimeInterval(2.0, target: self, selector: #selector(self.LabelAnimate), userInfo: nil, repeats: true) 
} 

func LabelAnimate() { 
    UIView.animateWithDuration(3.0, delay: 0.0, options: .TransitionNone, animations: {() -> Void in 
    self.label.frame = CGRectMake(-320, 100, 200, 60) 
     }, completion: {(isDone: Bool) -> Void in 
      self.label.frame = CGRectMake(320, 100, 200, 60) 
    }) 
} 
} 
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