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// // ViewController.swift // UIProgressViewSample // // Created by jinnchang on 15/4/2. // Copyright (c) 2015年 Jinn Chang. All rights reserved. // import UIKit class ViewController: UIViewController { var button: UIButton! var progressView: UIProgressView! var timer: NSTimer! var remainTime = 10 override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view,typically from a nib. button = UIButton.buttonWithType(.System) as UIButton button.frame = CGRectMake(30,50,self.view.frame.size.width - 60,100) button.setTitle("开始计时",forState: .Normal) button.addTarget(self,action: "buttonAction",forControlEvents: .TouchUpInside) progressView = UIProgressView(progressViewStyle: .Bar) progressView.frame = CGRectMake(30,200,100) progressView.progress = 1.0 self.view.addSubview(button) self.view.addSubview(progressView) } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } /// 响应按钮点击事件 func buttonAction() { button.enabled = false timer = NSTimer.scheduledTimerWithTimeInterval(1,target: self,selector: "timerAction",userInfo: nil,repeats: true) timer.fire() } /// 响应定时器事件 func timerAction() { if(remainTime < 0) { timer.invalidate() println("倒计时结束") } else { remainTime = remainTime - 1 let progressValue = Float(remainTime)/10 progressView.setProgress(progressValue,animated: true) } } }------------------------------------------------------------------------------------------
GitHub 上项目地址:UIProgressViewSample
控件更多相关属性及方法参考:UIProgressView Class Reference 文章最后更新时间:2015年4月3日11:39:23
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