Er.*_*har 0 uiactivityindicatorview ios swift
我希望我的公司徽标可以显示在活动指示器中,并且可以在我的iPhone应用程序中旋转。我正在努力。谁能向我建议一些除SVProgressHUD之外的第三方库,因为这没有提供任何自定义图像旋转。
如果有人可以建议一个自定义代码,那么也将不胜感激。
您可以尝试如下操作:
class MyIndicator: UIView {
let imageView = UIImageView()
init(frame: CGRect, image: UIImage) {
super.init(frame: frame)
imageView.frame = bounds
imageView.image = image
imageView.contentMode = .scaleAspectFit
imageView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
addSubview(imageView)
}
required init(coder: NSCoder) {
fatalError()
}
func startAnimating() {
isHidden = false
rotate()
}
func stopAnimating() {
isHidden = true
removeRotation()
}
private func rotate() {
let rotation : CABasicAnimation = CABasicAnimation(keyPath: "transform.rotation.z")
rotation.toValue = NSNumber(value: Double.pi * 2)
rotation.duration = 1
rotation.isCumulative = true
rotation.repeatCount = Float.greatestFiniteMagnitude
self.imageView.layer.add(rotation, forKey: "rotationAnimation")
}
private func removeRotation() {
self.imageView.layer.removeAnimation(forKey: "rotationAnimation")
}
}
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用法:
let ind = MyIndicator(frame: CGRect(x: 0, y: 0, width: 100, height: 100), image: UIImage(named: "YOUR IMAGE NAME HERE"))
view.addSubview(ind)
ind.startAnimating()
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