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iOS

Posted by Jacob Apenes
Jacob Apenes
869 Points

How can I turn the input from a UITextField into a Double?

So I've been trying to use the input from a UITextField to create a new variable that is a double. I've had no success

Here is the variable that I am using:

class FirstViewController: UIViewController {

    @IBOutlet weak var circleRadiusTextField: UITextField!

   var circleRadiusDouble = circleRadiusTextField.text.doubleValue

}

"var circleRadiusDouble = circleRadiusTextField.text.doubleValue" is the problem.

It returns the error 'FirstViewController.Type' does not have a member named 'circleOriginXTextField'

If anyone could find a solution, it would be greatly appreciated

1 Answer

dungeonkeeperhf
dungeonkeeperhf
3,272 Points
dungeonkeeperhf
dungeonkeeperhf
3,272 Points

You need to cast it as a double. I loaded up playground as demonstrated this.

import UIKit

let notDouble: Int = 5

let double: Double = Double(notDouble)

,,,
Jacob Apenes
Jacob Apenes
869 Points

When I tried that, it replied with "String cannot be turned to Double" I solved the problem, turns out I was initilazing the variable in the incorrect place

dungeonkeeperhf
dungeonkeeperhf
3,272 Points

Something tells me it's not that. Basically anything you put into the UITextField will produce a string. Try casting the UiTextField's text as an Int.