使用操作按钮发出警报 - Swift

Question

我有警报，写入 iOS 8+，我必须将相同的警报写入 iOS 7.0（我在其他请求中使用了四个警报）

有我的代码：

    func AlertForNumber () {
    var alertController: UIAlertController?
    //
    alertController = UIAlertController(title: "First", message: "Enter number", preferredStyle: .Alert)
    alertController!.addTextFieldWithConfigurationHandler({(textField: UITextField!) in
        textField.text = "38"
    })
    let action = UIAlertAction(title: "Next", style: UIAlertActionStyle.Default, handler: {[weak self]
        (paramAction: UIAlertAction!) in
        if let textFields = alertController?.textFields {
            let textFields = textFields as! [UITextField]
            let enterText = textFields[0].text
            if (count(enterText) < 12){
                self?.ErrorForNumber()
            } else {
                self!.data.numberID = enterText
                self!.data.SaveData(enterText, codetext: self!.data.codeID)
                self!.json.UfR()
            }
        }
        })
    alertController?.addAction(action)
    dispatch_async(dispatch_get_main_queue(), {
        self.presentViewController(alertController!, animated: true, completion: nil)

    })
}

在那个警报中，我必须输入我的号码，然后发送到服务器。我必须只对文本字段使用警报在我必须在下一个警报时输入代码之后：

func AlertForCode () {
    var alertController: UIAlertController?
    alertController = UIAlertController(title: "Second", message: "Enter code", preferredStyle: .Alert)
    alertController!.addTextFieldWithConfigurationHandler({(textField: UITextField!) in
        textField.placeholder = code_text
    })
    let action = UIAlertAction(title: "Next", style: UIAlertActionStyle.Default, handler: {[weak self]
        (paramAction: UIAlertAction!) in
        if let textFields = alertController?.textFields {
            let textFields = textFields as! [UITextField]
            let enterText = textFields[0].text
            self!.data.codeID = enterText
            self!.data.SaveData(self!.data.numberID, codetext: enterText)
            self!.json.UfR()
        }
        })
    alertController?.addAction(action)
    dispatch_async(dispatch_get_main_queue(), {
        self.presentViewController(alertController!, animated: true, completion: nil)
    })

}

所以我必须写到 iOS 7.0

Answer 1

func AlertForNumber () {
    let alertView = UIAlertView(title: "First", message: "Enter number", delegate: self, cancelButtonTitle: "Next")
    alertView.alertViewStyle = UIAlertViewStyle.PlainTextInput
    alertView.textFieldAtIndex(0)?.text = "38"
    alertView.show()
}

func alertView(alertView: UIAlertView, clickedButtonAtIndex buttonIndex: Int) {
    println("next")
    let enterText = alertView.textFieldAtIndex(0)!.text
    if (count(enterText) < 12){
        self?.ErrorForNumber()
    } else {
        self!.data.numberID = enterText
        self!.data.SaveData(enterText, codetext: self!.data.codeID)
        self!.json.UfR()
    }
}

使用操作按钮发出警报 - Swift

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