按下按钮时可以正常工作。单击此功能后显示另一个视图
@IBAction func charSetPressed(_ button: UIButton) {
if button.titleLabel!.text == "1/2" {
charSet1.isHidden = true
charSet2.isHidden = false
button.setTitle("2/2", for: .normal)
} else if button.titleLabel!.text == "2/2" {
charSet1.isHidden = false
charSet2.isHidden = true
button.setTitle("1/2", for: .normal)
}
UIView.animateWithDuration(0.2, animations: {
button.transform = CGAffineTransformScale(CGAffineTransformIdentity, 2.0, 2.0)
}, completion: {(_) -> Void in(here the error happend)
button.transform =
CGAffineTransformScale(CGAffineTransformIdentity, 1, 1)
})
}
答案 0 :(得分:6)
//按键动画显示...(对于Swift 3.0)
UIView.animate(withDuration: 0.2, animations: {
button.transform = CGAffineTransform(scaleX: 2.0, y: 2.0)
}, completion:{ _ in
button.transform = CGAffineTransform(scaleX: 1.0, y: 1.0)
})
答案 1 :(得分:4)
import UIKit
import Foundation
class ViewController: UIViewController {
@IBOutlet weak var myView: UIView!
@IBAction func buttonTouched(_ sender: AnyObject) {
// animate scaling by 2.0, 2.0
UIView.animate(withDuration: 0.2, animations: {
let transformScaled = CGAffineTransform
.identity
.scaledBy(x: 2.0, y: 2.0)
self.myView.transform = transformScaled
}) { (finished) in
// once finished first animation
// start second animation
if finished {
// animate scaling by 1.0, 1.0
UIView.animate(withDuration: 0.2, animations: {
let transformScaled = CGAffineTransform
.identity
.scaledBy(x: 1.0, y: 1.0)
self.myView.transform = transformScaled
})
}
}
}
}