如何在Swift中向UIAlertView添加TextField [英] How to add a TextField to UIAlertView in Swift

问题描述

我有这段代码，但我不知道如何在UIAlertView中显示文本字段。

I have this code, but I dont know how to show a textfield inside the UIAlertView.

var altMessage = UIAlertController(title: "Warning", message: "This is Alert Message", preferredStyle: UIAlertControllerStyle.Alert)
altMessage.addAction(UIAlertAction(title: "Done", style: UIAlertActionStyle.Default, handler: nil))
self.presentViewController(altMessage, animated: true, completion: nil)

我有这个代码textfield，如何在UIAlerView中显示

I have this code for textfield , how can I show this in UIAlerView

var my:UITextField = UITextField(frame: CGRectMake(0, 0, 10, 10))

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我也试过这段代码：

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I also tried this code:

var alert = UIAlertView()
alert.title = "Enter Input"
alert.addButtonWithTitle("Done")
alert.alertViewStyle = UIAlertViewStyle.PlainTextInput
alert.addButtonWithTitle("Cancel")
alert.show()

当我指定AlertSt时yle plainText，它显示一个带默认占位符的TextField，Login..我想改变它，我想显示一个Decimal Pad键盘。我还想处理用户输入textField的值。有人可以帮我吗？

When I specify the AlertStyle plainText, it shows a TextField with default placeholder, "Login".. I want to change that, I want to show a Keyboard of Decimal Pad. I also want to handle the value the user enters into the textField. Can someone help me with this?

推荐答案

您可以访问文本字段：

let textField = alert.textFieldAtIndex(0)

然后更改占位符文本：

textField.placeholder = "Foo!"

键盘类型：

textField.keyboardType = ...

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