ios - Add a text field to UIAlertViewController in swift -

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i'm new swift , have uialertviewcontroller , want add text field , data that. example text inside text field.

add text field alert controller:

alertcontroller.addtextfieldwithconfigurationhandler { (textfield) -> void in     textfield.placeholder = "some placeholder text"     // configure text field here }

get text text field when user presses button:

let okaction = uialertaction(title: "ok", style: .cancel) { (action) -> void in      let textfield = alertcontroller.textfields![0] as! uitextfield } alertcontroller.addaction(okaction)

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