Swift 简单控件示例:活动指示器(UIActivityIndicatorView)
发布时间:2020-12-14 02:15:54 所属栏目:百科 来源:网络整理
导读:转载请声明出处:http://www.jb51.cc/article/p-fycefhzj-ga.html ------------------------------------------------------------------------------------------ //// ViewController.swift// UIActivityIndicatorViewSample//// Created by jinnchang on
转载请声明出处:http://www.52php.cn/article/p-fycefhzj-ga.html ------------------------------------------------------------------------------------------ // // 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 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |