在自定义的uibarbuttonem中进行旋转动画时,我在帧中遇到问题。
我的代码如下:
类ViewController:UIViewController{
var bellIcon:uibarbuttonem=uibarbuttonem()
override func viewDidLoad() {
super.viewDidLoad()
setupBellButton()
}
func setupBellButton(){
let icon = UIImage(named: "Bell.png")
let iconSize = CGRect(origin: CGPoint.zero, size: icon!.size)
let iconButton = UIButton(frame: iconSize)
iconButton.setBackgroundImage(icon, for: .normal)
let badgeView = UIView(frame: CGRect(origin: CGPoint(x: iconButton.frame.maxX-10, y: iconButton.frame.minX), size: CGSize(width: 10, height: 10)))
badgeView.layer.cornerRadius = 5
badgeView.layer.borderColor = UIColor.red.cgColor
badgeView.backgroundColor = UIColor.red
badgeView.layer.masksToBounds = true
badgeView.clipsToBounds = true
let btnContainer = UIView(frame: CGRect(origin: CGPoint.zero, size: icon!.size))
btnContainer.addSubview(iconButton)
btnContainer.addSubview(badgeView)
badgeView.transform = CGAffineTransform(scaleX: 0, y: 0)
UIView.animate(withDuration: 1) {
badgeView.transform = CGAffineTransform(scaleX: 1, y: 1)
}
bellIcon.customView = btnContainer
iconButton.addTarget(self, action:#selector(bellIconTapped), for: .touchUpInside)
navigationItem.rightBarButtonItem = bellIcon
bellIcon.customView?.backgroundColor = UIColor.purple
}
@IBAction func bellIconTapped(_ sender: Any) {
UIView.animate(withDuration: 0.3, animations: {
self.bellIcon.customView!.transform = CGAffineTransform(rotationAngle: -0.4)
}) { (true) in
UIView.animate(withDuration: 0.3, animations: {
self.bellIcon.customView!.transform = CGAffineTransform(rotationAngle: 0.4)
}, completion: { (true) in
UIView.animate(withDuration: 0.4, animations: {
self.bellIcon.customView!.transform = CGAffineTransform.identity
})
})
}
}
}
提前谢谢!!!
最佳答案
我已经解决了iOS 10和11中的上述问题,只需将常量添加到“bellIcon.customView”
我在“setupBellButton()”的末尾添加了以下代码
bellIcon.customView?.translatesAutoresizingMaskIntoConstraints = false
let widthConstraint = bellIcon.customView?.widthAnchor.constraint(equalToConstant: 25.0)
let heightConstraint = bellIcon.customView?.heightAnchor.constraint(equalToConstant: 25.0)
bellIcon.customView?.addConstraints([widthConstraint!, heightConstraint!])
快乐编码!!!
关于ios - UIBarButtonItem旋转动画后框架发生变化,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/47038613/