[iOS] UIView.transition

iOS/설명

[iOS] UIView.transition

Sky Titan 2022. 4. 24. 13:52

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Apple Developer Documentation

developer.apple.com

UIView. transition

특정 container view에 대해서 transition(전환) 애니메이션을 만들 수 있다.
removeFromSuperView, addSubview와 같이 특정 뷰에 subview를 추가, 삭제, 보이기, 숨기기 등을 할 때 전환 효과를 줄 수 있다.

class ViewController: UIViewController {
    
    @IBOutlet weak var redView: UIView!
    var blueView: UIView = {
       let view = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
        view.backgroundColor = .blue
        return view
    }()
    
    override func viewDidLoad() {
        super.viewDidLoad()
    }
    
    @IBAction func addClick(_ sender: Any) {
    //blueView를 추가할 때 전환효과
        UIView.transition(with: self.redView, duration: 0.6, options: .transitionFlipFromLeft, animations: {
            self.redView.addSubview(self.blueView)
        })
        
    }
    
    @IBAction func removeClick(_ sender: Any) {
    //blueView를 제거할 때 전환효과
        UIView.transition(with: self.redView, duration: 0.6, options: .transitionFlipFromLeft, animations: {
            self.blueView.removeFromSuperview()
        })
    }
}