Renaming an outlet in Swift

Question

I accidentally misspelled one of the outlet's in my view controller and ran into a few issues. When I manually try to correct the typo I get stopped at runtime within AppDelegate I'm shown the message,

Thread 1: signal SIGABRT

which highlights the beginning of the code block:

class AppDelegate: UIResponder, UIApplicationDelegate {
  ...
}

I've found that to fix this issue in Objective-C you would right-click the outlet's original name and "Refactor => Rename" but unfortunately I get the message:

Xcode can only refactor C and Objective-C code

View Controller

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var billTextField: UITextField!

    @IBOutlet weak var tipRateSegmentedControl: UISegmentedControl!

    @IBOutlet weak var tiLabel: UILabel! // Variable name should be "tipLabel"

    @IBAction func calculateTapped(sender: AnyObject) {
        var userInput = billTextField.text as NSString
        var totalBill: Float = userInput.floatValue
        var index: Int = tipRateSegmentedControl.selectedSegmentIndex
        var tipRate: Float = 0.15

        if index == 0 {
            tipRate == 0.15
        } else if index == 1 {
            tipRate = 0.20
        } else {
            tipRate = 0.25
        }

        var tip: Float = totalBill * tipRate

        tipLabel.text = "$\(tip)"
    }
}

Answer 1

EDIT: Since Xcode9, there's a refactor function; the new good method is the one in this answer

---

Since Xcode 6, you can look for your outlet names directly in the Find navigator (Cmd+3), it shows occurrences in your code and in your xibs and storyboards. It also works with actions.

Just search the name in the Find navigator.

You can see that the second result is a reference in a storyboard. You can replace one by one by clicking on each result and press Replace, or you can directly Replace All if you are sure you don't break anything.

Answer 2

Refactor > Rename...

Xcode 9 had many editor improvements including a feature that changes an outlet/action name in the code and storyboard from one place.

In the example Swift code below, right click on btnRequestCode, from the popup menu select "Refactor > Rename...", change the outlet/action name and Xcode changes it in the Storyboard also.

@IBOutlet weak var btnRequestCode: UIButton!