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// // ViewController.swift // UIActivityIndicatorViewSample // // Created by jinnchang on 15/4/2. // copyright (c) 2015年 Jinn Chang. All rights reserved. // import UIKit class ViewController: UIViewController { var activityIndicatorView: UIActivityIndicatorView! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view,typically from a nib. let button1 = UIButton.buttonWithType(.System) as UIButton button1.frame = CGRectMake(30,50,self.view.frame.size.width - 60,100) button1.setTitle("显示",forState: .normal) button1.addTarget(self,action: "buttonAction:",forControlEvents: .TouchUpInside) button1.tag = 1 let button2 = UIButton.buttonWithType(.System) as UIButton button2.frame = CGRectMake(30,150,100) button2.setTitle("隐藏",forState: .normal) button2.addTarget(self,forControlEvents: .TouchUpInside) button2.tag = 2 activityIndicatorView = UIActivityIndicatorView(activityIndicatorStyle: .White) activityIndicatorView.frame = CGRectMake(self.view.frame.size.width/2 - 50,250,100,100) activityIndicatorView.color = UIColor.blackColor() self.view.addSubview(button1) self.view.addSubview(button2) self.view.addSubview(activityIndicatorView) } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // dispose of any resources that can be recreated. } /// 按钮响应事件 func buttonAction(sender: UIButton) { let num = sender.tag switch num { case 1: activityIndicatorView.startAnimating() case 2: activityIndicatorView.stopAnimating() default: break } } }------------------------------------------------------------------------------------------
GitHub 上项目地址:UIActivityIndicatorViewSample
控件更多相关属性及方法参考:UIActivityIndicatorView Class Reference 文章最后更新时间:2015年4月3日11:44:45
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