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iOS

Posted by shane reichefeld
shane reichefeld
Courses Plus Student 2,232 Points

Xcode Swift and UITextField

In xcode, i have a button with IBOutlet and IBAction that when pressed takes my input in the text field and shows it in a label. the text field uses a decimal pad so only 0-9 and ".". My question is what would i do to have my input saved into an array as an int. So that way i may call that item out of the array for other uses.

2 Answers

Reed Carson
Reed Carson
8,306 Points 
var array: [String] = []

func pressTheButton() {
array.append(textfield.text)
}

then when you need to use it just cast it to a double. (Int wont work if youve got a decimal "float"ing around, haha pun)

let savedNumber = Double(array[index])
shane reichefeld
shane reichefeld
Courses Plus Student 2,232 Points

Im confused on another part? So i have the main ViewController.swift file, and i am have all my calculation equations coded in a swift file named Calculations.swift how do i call my textfield from ViewController.swift to be used in Calculations.swift file?

Anjali Pasupathy
Anjali Pasupathy
28,883 Points
Anjali Pasupathy
Anjali Pasupathy
28,883 Points

You would have to cast your input as an Int and unwrap the Int, since the cast would make your Int an Optional value. After that, you can put it in your array.

Reed Carson
Reed Carson
8,306 Points

shane are you building a calculator, just curious. If you are I have a github project you could look at. But to answer your question, I'd have to see the code. If your calculations functions are done in a class, you can create an instance of that class in your VC to use it. But I'd have to see that code to truly answer. If the functions are just global then you can call them from an IBAction