在Swift中更改UIAlertController上的一个或特定按钮的颜色

Question

我有一个UIController的操作表类型，显示两个项目，第一个是＆＃34;从App＆＃34;另一个是＆＃34;取消＆＃34;。我想更改按钮的字体颜色，显示＆＃34;从App＆＃34;红色并离开＆＃34;取消＆＃34;默认颜色的按钮。我怎样才能做到这一点？以下是我的代码：

let cancelActionSheetButton = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel) { 
    (cancelSelected) -> Void in
    print("Cancel Selected")
}

let logoutActionSheet = UIAlertController(title:"Logout", message: nil, preferredStyle: UIAlertControllerStyle.ActionSheet)

let logoutActionSheetButton = UIAlertAction(title: "Logout from App", style: UIAlertActionStyle.Default) { 
    (logoutSelected) -> Void in
}

logoutActionSheet.addAction(logoutActionSheetButton)
logoutActionSheet.addAction(cancelActionSheetButton)

self.presentViewController(logoutActionSheet, animated: true, completion:nil)

Answer 1

尝试使用UIAlertActionStyle.Destructive。

let logoutActionSheetButton=UIAlertAction(title: "Logout from App", style: UIAlertActionStyle.Destructive) { ... }