view 移動

var gandieImageView: UIImageView?

override func viewWillAppear(_ animated: Bool) {
    ...
    updateAnimation()
}

override func viewDidDisappear(_ animated: Bool) {
    gandieImageView?.image = nil
}

private func updateAnimation() {
        
    let screenWidth     = UIScreen.main.bounds.size.width
    let screenHeight    = UIScreen.main.bounds.size.height
    let iconWidth:  CGFloat = 82 // Fixed value by image size
    let iconHeight: CGFloat = 81 // Fixed value by image size
    let containerHeight: CGFloat = 64 // Fixed value by auto layout

    //var topSafeAreaHeight: CGFloat = 0
    var bottomSafeAreaHeight: CGFloat = 0

    if #available(iOS 11.0, *) {
        let window = UIApplication.shared.windows[0]
        let safeFrame = window.safeAreaLayoutGuide.layoutFrame
        //topSafeAreaHeight = safeFrame.minY // 取得top safe area高度
        bottomSafeAreaHeight = window.frame.maxY - safeFrame.maxY // 取得 bottom safe area高度
    }

    let images = [UIImage(named: "move01")!, UIImage(named: "move02")!, UIImage(named: "move03")!, UIImage(named: "move04")!]
    let animatedImage = UIImage.animatedImage(with: images, duration: 1)

    // 建立UIImageView並設定初始位置
    gandieImageView = UIImageView(frame: CGRect(
        x: screenWidth + iconWidth,
        y: screenHeight - bottomSafeAreaHeight - containerHeight - iconHeight - 5,
        width:  iconWidth,
        height: iconHeight)
    )

    gandieImageView?.image = animatedImage
    gandieImageView?.contentMode = .scaleAspectFit

    // 要移到的位置
    UIView.animate(withDuration: 1) {
        self.gandieImageView?.frame = CGRect(
            x: screenWidth  - iconWidth - 5,
            y: screenHeight - bottomSafeAreaHeight - containerHeight - iconHeight - 5,
            width:  iconWidth,
            height: iconHeight
        )
    }
    self.view.addSubview(gandieImageView!)
    addGesture(imageView: gandieImageView)
}

tags: 實作相關