iPhone UIView动画最佳实践

UIView.animate(withDuration: 0.3) {
    self.view.alpha = 0.0
}

UIView.animate(withDuration: 0.3, animations: {
    self.view.alpha = 0.0
}) { _ in
    self.view.removeFromSuperview()
}

UIView.animate(withDuration: 0.3, delay: 0.0, usingSpringWithDamping: 0.7, initialSpringVelocity: 0.0, options: [.curveEaseInOut], animations: {
    self.view.transform = CGAffineTransform(translationX: 0, y: -50)
})

UIView.transition(with: self.view, duration: 0.3, options: .transitionCrossDissolve, animations: {
    self.imageView.image = newImage
})

self.view.layoutIfNeeded()
UIView.animate(withDuration: 0.3) {
    self.constraint.constant = 100
    self.view.layoutIfNeeded()
}

let animation = CABasicAnimation(keyPath: "position.x")
animation.fromValue = 0
animation.toValue = 100
animation.duration = 0.3
self.view.layer.add(animation, forKey: "move")