r view in myViews {
UIView.transition(with: self.view, duration: 3.0, options: .allowAnimatedContent,
animations: {
let new_xpoint = Int(arc4random() % UInt32(self.view.frame.size.width))
let new_ypoint = Int(arc4random() % UInt32(self.view.frame.size.height))
view.center = CGPoint(x: new_xpoint, y: new_ypoint)
},
completion: nil)
}
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