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我想展示一个连续的警报控制器，从 Swift 中第一个警报控制器的动作开始。

所以场景是这样的：

1) Alert_A 有 2 个选项：

  • a) 选择此选项后，当前 Alert_B 也会关闭 Alert_A

  • b) 选择此选项后，当前 Alert_C 也会关闭 Alert_A

2) Alert_B/Alert_C 各有 2 个选项：

  • a) 行动警报_B/行动警报_C

  • b) 取消取消 Alert_B/Alert_C

我在 Apple 文档中读到不建议在警报中显示警报。

我还添加了一个指向警报层次结构的链接：

警报图

4

1 回答 1

1

试试这个： 

 let alertController = UIAlertController(title: "Choose", message: "Choose one of two alert options", preferredStyle: UIAlertControllerStyle.Alert)
        let Alert1 = UIAlertAction(title: "Alert1", style: UIAlertActionStyle.Default) { (result : UIAlertAction) -> Void in

let alertController = UIAlertController(title: "Alert1", message: "You chose Alert1", preferredStyle: UIAlertControllerStyle.Alert)
        let Action1 = UIAlertAction(title: "Action1", style: UIAlertActionStyle.Default) { (result : UIAlertAction) -> Void in
            /////////YOUR Action1////////
        }
        let CancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel) { (result : UIAlertAction) -> Void in
        }

        alertController.addAction(Action1)
        alertController.addAction(CancelAction)


    self.presentViewController(alertController, animated: true, completion: nil)
        }
        let Alert2 = UIAlertAction(title: "Alert2", style: UIAlertActionStyle.Default) { (result : UIAlertAction) -> Void in

let alertController = UIAlertController(title: "Alert2", message: "You chose Alert2", preferredStyle: UIAlertControllerStyle.Alert)
        let Action2 = UIAlertAction(title: "Action2", style: UIAlertActionStyle.Default) { (result : UIAlertAction) -> Void in
            /////////YOUR Action2////////
        }
        let CancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel) { (result : UIAlertAction) -> Void in
        }

        alertController.addAction(Action2)
        alertController.addAction(CancelAction)
    self.presentViewController(alertController, animated: true, completion: nil)
 }


            alertController.addAction(Alert1)
            alertController.addAction(Alert2)
self.presentViewController(alertController, animated: true, completion: nil)

更好的方法：

let alertController = UIAlertController(title: "Choose", message: "Action1 or Action2?", preferredStyle: UIAlertControllerStyle.Alert)
    let Action1 = UIAlertAction(title: "Action1", style: UIAlertActionStyle.Default) { (result : UIAlertAction) -> Void in
        ///////Action1///////
    }
    let Action2 = UIAlertAction(title: "Action2", style: UIAlertActionStyle.Default) { (result : UIAlertAction) -> Void in
        //////Action2///////
    }
    let CancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel) { (result : UIAlertAction) -> Void in
    }

    alertController.addAction(Action1)
    alertController.addAction(Action2)


      alertController.addAction(CancelAction)

self.presentViewController(alertController, animated: true, completion: nil)
于 2016-08-30T19:57:27.080 回答