Swift3でボタンを揺らす簡単なサンプル
IBOutletで接続
@IBOutlet weak var Button: UIButton!
viewDidLoad() 内で実行
UIView.animate(withDuration: 0.6,
animations: {
self.Button.transform = CGAffineTransform(scaleX: 0.6, y: 0.6)
},
completion: { _ in
UIView.animate(withDuration: 0.6) {
self.Button.transform = CGAffineTransform.identity
}
})