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Swift中，除了条形进度条外，还有环形进度条，效果图如下：
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import UIKitclass ViewController: UIViewController { var activityIndicator:UIActivityIndicatorView! override func viewDidLoad() { super.viewDidLoad() activityIndicator = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.Gray) activityIndicator.center=self.view.center self.view.addSubview(activityIndicator); play() } func play(){ //进度条开始转动 activityIndicator.startAnimating() } func stop(){ //进度条停止转动 activityIndicator.stopAnimating() } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() }} |
Swift - 环形进度条（UIActivityIndicatorView）的用法
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原文地址：http://www.cnblogs.com/Free-Thinker/p/4838645.html
