swift 创建第一个UIAlertView 和UIActionSheet

//创建 UIActionSheet

／／一定要指明类型，不编译不通过

func ActionSheet(sender:UITapGestureRecognizer)
{
let actionSheet: UIActionSheet = UIActionSheet(title:"Are you sure?",delegate:self,cancelButtonTitle:"Cancel",destructiveButtonTitle:"Yes,I'm sure!");
actionSheet.showInView(self.view)

}

//actionSheet delegate
func actionSheet(actionSheet: UIActionSheet,clickedButtonAtIndex buttonIndex: Int) {
if buttonIndex == 0{
println("点击位置为\(buttonIndex)")
}
}

//创建UIAlertView

func firstSwift(sender:UIButton) { println("第一个button的点击事件") self.label1.text = "button点击了" var alert = UIAlertView(title: "⚠",message: "button被点击了",delegate: self,cancelButtonTitle: "知道了") alert.show() }