UILayoutGuideを活用する/love_swift36

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14. ෳࡶͳ੍໿ͷมԽΛӅṭग़དྷΔ let nc = NotificationCenter.default nc.addObserver(self, selector: #selector(keyboardWillChangeFrame(_:)), name: UIResponder.keyboardWillChangeFrameNotification, object: nil) ~~ NotificationCenter.default.removeObserver(self) ~~ viewBottomConstraint.constant = height view.layoutIfNeeded() 
15. ෳࡶͳ੍໿ͷมԽΛӅṭग़དྷΔ button.bottomAnchor.constraint(equalTo: view.keyboardLayoutGuide.topAnchor).isActive = true 
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20. ྲྀΕ w 6*-BZPVU(VJEFͷαϒΫϥεΛ࡞Δ w 6*8JOEPXʹࠇຐज़ͰMBZPVU(VJEFΛੜ΍͢ w ճసʹΑ੍ͬͯ໿Λߋ৽͢Δ 
21. 6*-BZPVU(VJEFͷαϒΫϥεΛ࡞Δ public class NotchLayoutGuide: UILayoutGuide { internal func setup() { guard let window = owningView else { return } NSLayoutConstraint.activate([ topAnchor.constraint(equalTo: window.topAnchor), centerXAnchor.constraint(equalTo: window.centerXAnchor), widthAnchor.constraint(equalToConstant: 230), heightAnchor.constraint(equalToConstant: 30), ]) } } ˞/PUDIͷαΠζ͸Y͘Β͍ 
22. 6*8JOEPXʹMBZPVU(VJEFΛੜ΍͢ public extension UIWindow { public var notchLayoutGuide: NotchLayoutGuide { if let obj = objc_getAssociatedObject(self, &AssociatedKeys.notchLayoutGuide) as? NotchLayoutGuide { return obj } let new = NotchLayoutGuide() addLayoutGuide(new) new.setup() objc_setAssociatedObject(self, &AssociatedKeys.notchLayoutGuide, new as Any, .OBJC_ASSOCIATION_RETAIN_NONATOMIC) return new } } FYUFOTJPOʹTUPSFE
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23. ಈ࡞ͷ֬ೝ let button = UIButton(frame: .zero) button.translatesAutoresizingMaskIntoConstraints = false view.addSubview(button) NSLayoutConstraint.activate([ button.topAnchor.constraint(equalTo: window.notchLayoutGuide.bottomAnchor), button.centerXAnchor.constraint(equalTo: window.notchLayoutGuide.centerXAnchor), button.widthAnchor.constraint(equalToConstant: 100), button.heightAnchor.constraint(equalToConstant: 44), ]) ϘλϯΛ/PUDI-BZPVU(VJEFͷԼʹ഑ஔ͢Δ੍໿Λͭ ͚Δ 
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26. ճసʹΑ੍ͬͯ໿Λߋ৽͢Δ NotificationCenter.default.addObserver(self, selector: #selector(didRotate), name: .UIDeviceOrientationDidChange, object: nil) ~~ deinit { NotificationCenter.default.removeObserver(self) } 
27. ճసʹΑ੍ͬͯ໿Λߋ৽͢Δ private func update() { guard let window = owningView else { return } allConstraint.isActive = false //extension switch UIDevice.current.orientation { case .portrait: ... case .landscapeLeft: ... ..... 
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