ios - 使用 Swift 自动布局动画 UIButton

Question

Hello Community 我只想为 UIView 和 UIButton 制作动画。但它真的不适合我。

 self.introConstraints.constant = self.view.frame.width
    self.view.needsUpdateConstraints()
    UIView.animateWithDuration(0.6){
        self.view.layoutIfNeeded()
    }

这就是我的代码的样子。

Answer 1

=> 试试这个:-

UIView.animateWithDuration(0.6 , 动画: { self.button.transform = CGAffineTransformMakeScale(0.6, 0.6)

},

completion: { 

    UIView.animateWithDuration(0.6){

        self.button.transform = CGAffineTransformIdentity
    }
})

=> 如果你想用 Spring 动画获得更多的弹跳效果。:-

=>尝试下面的代码:

@IBOutlet 弱变量按钮:UIButton!

@IBAction func animateButton(sender: AnyObject) {

    button.transform = CGAffineTransformMakeScale(0.6, 0.6)

   UIView.animateWithDuration(2.0,

   delay: 0,
   usingSpringWithDamping: CGFloat(0.20),

   initialSpringVelocity: CGFloat(6.0),

   options: UIViewAnimationOptions.AllowUserInteraction,

   animations: {

        self.button.transform = CGAffineTransformIdentity
   },
      completion: { Void in()  }
 )
}