swift中UIActionSheet的使用

[objc] 
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 //方法1
 letalertSheet=UIActionSheet(title:alertTitle,delegate:nil,cancelButtonTitle:alertOK,0);background-color:inherit;">destructiveButtonTitle:alertCancel)
 alertSheet.showInView(self.view)

//方法2 //实例化时添加代理对象，同时注意添加协议
 letalertSheet=UIActionSheet(title:alertTitle,153);background-color:inherit;font-weight:bold;">self,0);background-color:inherit;">destructiveButtonTitle:alertCancel,0);background-color:inherit;">otherButtonTitles:"警告","提示","通告")
 alertSheet.showInView(self.view)

//添加协议 classViewController:UIViewController,UIActionSheetDelegate{
 
 overridefuncviewDidLoad(){
 ...
 }
 }

//代理方法//MARK:UIActionSheetDelegate
 funcactionSheet(actionSheet:UIActionSheet,clickedButtonAtIndexbuttonIndex:Int){
 letbuttonTitle=actionSheet.buttonTitleAtIndex(buttonIndex)
 ifbuttonTitle==alertCancel
 {
 print("你点击了退出")
elseifbuttonTitle==alertOK
 print("你点击了确定")
else
 print("你点击了其他")
 }

//方法3//1实例化
 letalertSheet=UIAlertController(title:alertTitle,0);background-color:inherit;">message:alertMessage,0);background-color:inherit;">preferredStyle:UIAlertControllerStyle.ActionSheet)
//2命令（样式：退出Cancel，警告Destructive-按钮标题为红色，默认Default）
 letcancelAction=UIAlertAction(title:alertCancel,0);background-color:inherit;">style:UIAlertActionStyle.Cancel,0);background-color:inherit;">handler:nil)
 letdeleteAction=UIAlertAction(title:"删除",0);background-color:inherit;">style:UIAlertActionStyle.Destructive,153);background-color:inherit;font-weight:bold;">nil)
 letarchiveAction=UIAlertAction(title:alertOK,0);background-color:inherit;">style:UIAlertActionStyle.Default,0);background-color:inherit;">handler:{
 actionin
 print("OK")
 })
 alertSheet.addAction(cancelAction)
 alertSheet.addAction(deleteAction)
 alertSheet.addAction(archiveAction)
//3跳转
self.presentViewController(alertSheet,0);background-color:inherit;">animated:true,0);background-color:inherit;">completion:nil)

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