Swift-UIButton&AlertView
大家看到题目应该就知道我要说的东西了,今天要给大家介绍button控件,也是比较常用的用法。我就不啰嗦什么了。直接上代码: var myButton: UIButton! //Attention: buttonWithType return the type of AnyObject myButton = UIButton.buttonWithType(.System) as? UIButton(这里有必要说明一下,buttonWithType最终返回的是一个AnyObject,所以这里要用到类型转换)
//Set the location and size of button myButton.frame = CGRectMake(110,70,200, 100)
//Add a name to button,and set state myButton.setTitle("Press Me",forState: .Normal) myButton.setTitle("I`m Pressed",forState: .Highlighted)
//Add action to button myButton.addTarget(self,action: "buttonIspressed:",forControlEvents: .TouchDown) myButton.addTarget(self,action: "buttonIsTaped:",forControlEvents: .TouchUpInside)
//Add backgroundColor myButton.backgroundColor = UIColor.greenColor()
//Add image to backgound of myButton var image = UIImage(named: "pg.jpg") myButton.setBackgroundImage(image,forState: .Normal)
view.addSubview(myButton) 到这里button的用法差不多就讲完了。下面我要说的是AlertView,不是AlertViewController。大家看仔细: myAlertView = UIAlertView(title: "Done",message: "The button is tapped",delegate: self,cancelButtonTitle: "Cancell",otherButtonTitles: "ok") myAlertView!.show() Ok,今天就说这么多了。明天一个下载图片的demo,最近做项目要用。 (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! |