Swift Uiview 背景 animation 不工作

Question

我正在制作這個視圖，底部將彈出，背景視圖將淡入，當我按下按鈕關閉時，背景將淡出。

我實際上已經完成了當底部表彈出時它從底部到頂部 animation 並且背景顏色會淡入的一半部分，但是當我想關閉底部表時，它的情況不同，背景 animation 不這樣做會淡出 Z6F1C25ED1523992BZBBF 和而是從上到下 animation，有人知道我為什么會遇到這個錯誤嗎？

這是我的代碼

let fullView: CGFloat = 0
let screenSize: CGRect = UIScreen.main.bounds

@IBOutlet weak var Text: UILabel!
@IBOutlet weak var topView: UIView!
@IBOutlet weak var vieww: UIView!
@IBOutlet weak var botView: UIView!
@IBOutlet weak var Button: UIButton!

@objc func pressed(sender : Any) {
    
    var closeView = screenSize.height
   
    print(closeView)
    
    UIView.animate(withDuration: 0.4) { [weak self] in
        let frame = self?.view.frame
         self?.view.transform = CGAffineTransform(scaleX: 1.0, y: 1.0)
        self?.view.frame = CGRect(x: 0, y: closeView, width: frame!.width, height: frame!.height)
    }
    
    UIView.animate(withDuration: 0.4, delay: 0.35, options: .curveEaseOut, animations: {
        self.topView.alpha = 0.0
    }, completion: nil)
    
    isShown = false

}

override func viewDidLoad() {
    super.viewDidLoad()
    
    button()
   
    self.topView.alpha = 0.0
    
    vieww.layer.cornerRadius = 20
    vieww.layer.borderWidth = 0.5
    vieww.layer.borderColor = UIColor(red:222/255, green:225/255, blue:227/255, alpha: 1).cgColor
    vieww.clipsToBounds = true
    
    botView.layer.masksToBounds = false
    botView.layer.shadowColor = UIColor.black.cgColor
    botView.layer.shadowOpacity = 0.14
    botView.layer.shadowOffset = CGSize(width: 0, height: 0)
    botView.layer.shadowRadius = 2.7
}

override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)
    
    
    //when the animation is popping up
    
    UIView.animate(withDuration: 0.4) { [weak self] in
        let frame = self?.view.frame
        //            let yComponent = UIScreen.main.bounds.height - 896
        let yComponent = self?.fullView
        self?.view.frame = CGRect(x: 0, y: yComponent!, width: frame!.width, height: frame!.height)
    }
        
        UIView.animate(withDuration: 0.4, delay: 0.35, options: .curveEaseOut, animations: {
            self.topView.alpha = 0.5
        }, completion: nil)

}

func button() {
    
    Button.addTarget(self, action: #selector(pressed), for: .touchUpInside)
}

我仍然不知道為什么會發生這種情況，我猜測它是因為解雇 animation 和淡出 animation 不會做任何事情，因為解雇 animation 被稱為我首先嘗試彈出......但它仍然沒有任何意義，因為然后它仍然沒有意義底頁它的工作，現在我嘗試使用相同的方法，它不工作.....知道嗎？ 謝謝：）

Answer 1

問題在於您的按下方法 -

您正在通過提供 y=closeView（這是屏幕高度的大小）來更改主視圖的框架。 隨着您的整個主視圖下降，您的彈出窗口正在發生變化。

topView 也隨着主視圖向下移動

@objc func pressed(sender : Any) {
  
  let closeView = screenSize.height
 
  print(closeView)
  
  UIView.animate(withDuration: 0.4) { [weak self] in
      let frame = self?.view.frame
       self?.view.transform = CGAffineTransform(scaleX: 1.0, y: 1.0)
      self?.view.frame = CGRect(x: 0, y: closeView, width: frame!.width, height: frame!.height) //Wrong
  }


UIView.animate(withDuration: 0.4, delay: 0.35, options: .curveEaseOut, animations: {
      self.topView.alpha = 0.0
  }, completion: nil)
  

}

解決方案 -

self?.<bottomView>.frame = CGRect(x: 0, y: closeView, width: frame!.width, height: frame!.height) //Change bottom view with the bottom subview object which you want to push at bottom

Answer 2

您需要使用完成處理程序來隱藏這樣的視圖

 UIView.animateKeyframes(withDuration: 0.4, delay: 0.35, options: .curveEaseOut, animations: {
       self.topView.alpha = 0.0
    }) { _ in
      isShown = false
    }