刪除UIView後重新定位的問題

我在iOS swift 3.0中構建應用程序。我正在創建動態UIViews。我需要隨機刪除自定義視圖，但目前我無法重新定位職位，因爲我得到了兩個視圖之間的差距，我想刪除它們，如下圖所示代碼所示，請幫助我解決這個問題。刪除UIView後重新定位的問題

class ViewController: UIViewController { 
var myView: subView! 
var y : CGFloat! 
var tag : Int = 0 
@IBOutlet weak var addButton: UIButton! 

override func viewDidLoad() { 
    y = 1 
    super.viewDidLoad() 
    // Do any additional setup after loading the view, typically from a nib. 
} 
func cancelbutton(_ sender: UIButton) 
{ 
      let selectViewTagValue : Int = sender.tag /// save the selected view tag value 
      for object in self.view.subviews { 

      if ((object is subView) && object.tag == selectViewTagValue) 
      { 
       object.removeFromSuperview() 
      } 
     } 
} 
@IBAction func buttonAction(_ sender: Any) { 
    y = y + 110 
    myView = subView(frame: CGRect(x: 80, y: y, width: 300, height: 100)) 
    myView.tag = tag 
    myView.actionButton.tag = tag 
    tag = tag + 1 
    myView.backgroundColor = UIColor.green 
    myView.actionButton.addTarget(self, action: (#selector(cancelbutton(_:))), for: UIControlEvents.touchUpInside) 
    self.view.addSubview(myView) 

}