import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
let progressView = UIProgressView(progressViewStyle: .default)
progressView.center = self.view.center
progressView.progress = 0.5 // 默认 50%
self.view.addSubview(progressView)
progressView.progressTintColor = UIColor.green // 已有进度颜色
progressView.trackTintColor = UIColor.blue // 剩余进度颜色
progressView.setProgress(0.8, animated: true)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}