按下按钮后如何从视图添加特定信息到警报消息？

Question

我试图处理一个代码，当用户触摸＆＃34; ADD TO CART＆＃34;按钮，当用户触摸＆＃34;查看订单时，当前显示的信息将显示在警告消息中。按钮。我已经尝试过这个问题（How to save local data in a Swift app?）的答案，但我发现它对我不起作用，从那以后我一直被卡住了。

"VIEW ORDERS" button's alert screen (left side). Alert screen after adding another item to cart (right side)

编辑：在这台计算机上没有xcode，所以我只是在画面上制作了屏幕。

Answer 1

将以下代码用于警报视图控制器：

let alertController = UIAlertController(title: "\n", message: nil, preferredStyle: UIAlertControllerStyle.ActionSheet)

    let margin:CGFloat = 8.0
    let rect = CGRectMake(margin, margin, alertController.view.bounds.size.width - margin * 4.0, 100.0)
    let customView = UITextView(frame: rect)
    customView.text = "OREDERTEXT\nOREDERTEXT"
    customView.backgroundColor = UIColor.clearColor()
    customView.font = UIFont(name: "Helvetica", size: 15)

    alertController.view.addSubview(customView)

    let somethingAction = UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default, handler: {(alert: UIAlertAction!) in print("something")

        print(customView.text)

    })

    alertController.addAction(somethingAction)

    self.presentViewController(alertController, animated: true, completion:{})

我希望这对你有所帮助。

Answer 2

尝试使用此代码完全正常。

您的第一次警告

let message = "BRAND : BRNAD \n MODEL : MODEL \n PRICE : 25$"
let alertController = UIAlertController(
        title: "", // This gets overridden below.
        message: message,
        preferredStyle: .Alert
 )
 let okAction = UIAlertAction(title: "OK", style: .Cancel) { _ -> Void in
 }
 alertController.addAction(okAction)
 self.presentViewController(alertController, animated: true, completion: nil)

你的第二次警告......

let message = "BRAND : BRNAD \n MODEL : MODEL \n PRICE : 25$ \n\n\n BRAND : BRAND \n MODEL : MODEL \n PRICE : 120$ \n"
let alertController = UIAlertController(
            title: "", // This gets overridden below.
            message: message,
            preferredStyle: .Alert
)
let okAction = UIAlertAction(title: "OK", style: .Cancel) { _ -> Void in
}
alertController.addAction(okAction)
self.presentViewController(alertController, animated: true, completion: nil)