ios - Update UILabel frame and text continously -

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i trying move uilabel follow finger using touchmoved. , updating current frame label text.

label shuttered not moving accordingly. if comment 1 moving or updating text working

i made sample have uilabel , add pan gesture recognizer, change frame according location in view of superview example it's here : self.view. remember add userinteractionenabled = true uilabel. luck 

@iboutlet var label: uilabel!  override func viewdidload() {     super.viewdidload()     // additional setup after loading view, typically nib.      let pangesturerecognizer = uipangesturerecognizer(target: self, action: #selector(self.handlepan(_:)))     label.addgesturerecognizer(pangesturerecognizer)     label.userinteractionenabled = true  }     func handlepan(gesturerecognizer: uipangesturerecognizer) {      let location = gesturerecognizer.locationinview(self.view)      var frame = label.frame     frame.origin.x = location.x     frame.origin.y = location.y     label.frame = frame }

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