import UIKit
class ViewController: UIViewController ,UITextFieldDelegate,UITextViewDelegate,UIActionSheet Delegate,UIAlertViewDelegate{
override func viewDidLoad() {
super.viewDidLoad()
let progressView = UIProgressView(progressViewStyle: UIProgressViewStyle.Default)
// progressView.center = self.view.center;
progressView.frame = CGRectMake(10, 590, 200, 30)
//默认进度
progressView.progress = 0.1
self.view.addSubview(progressView)
//设置进度，同时有动画效果
progressView.setProgress(0.8, animated: true)
progressView.progressTintColor = UIColor.blackColor()//已有进度颜色
progressView.trackTintColor = UIColor.greenColor()//剩余进度颜色
}
}