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macOS Controls Tutorial: Part 1/2

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1

Learn how to use common macOS UI controls like NSTextField, NSComboBox, NSButton, and more in this two-part series — updated for Xcode 8.2 and Swift 3!

This is a companion discussion topic for the original entry at https://www.raywenderlich.com/759-macos-controls-tutorial-part-1-2
1 Like
2

As far as I can tell I’ve got the following set up as instructed:

class ViewController: NSViewController {

@IBOutlet weak var pastTenseVerbTextField: NSTextField!
@IBOutlet weak var singularNounCombo: NSComboBox!
@IBOutlet weak var pluralNounPopup: NSPopUpButton!
@IBOutlet weak var phraseTextView: NSTextView!

fileprivate let singularNouns = ["dog", "muppet", "ninja", "pirate", "dev"]
fileprivate let pluralNouns = ["tacos", "rainbows", "iPhones", "gold coins"]

override func viewDidLoad() {
    super.viewDidLoad()

    // Do any additional setup after loading the view.
    pastTenseVerbTextField.stringValue = "ate"
    
    singularNounCombo.removeAllItems()
    singularNounCombo.addItems(withObjectValues: singularNouns)
    singularNounCombo.selectItem(at: singularNouns.count-1)
    
    pluralNounPopup.removeAllItems()
    pluralNounPopup.addItems(withTitles: pluralNouns)
    pluralNounPopup.selectItem(at: 0)
    
    phraseTextView.string = "Me coding Mac Apps!!!"
}

override var representedObject: Any? {
    didSet {
    // Update the view, if already loaded.
    }
}

However, when I run it I get the following error:

2017-10-24 16:01:48.724212-0700 MadLibs[23164:10232020] -[NSScrollView setString:]: unrecognized selector sent to instance 0x6080001c0780
2017-10-24 16:01:48.724330-0700 MadLibs[23164:10232020] Failed to set (contentViewController) user defined inspected property on (NSWindow): -[NSScrollView setString:]: unrecognized selector sent to instance 0x6080001c0780

The error disappears if I remove the “phraseTextView.string = …” line.

Any suggestions? Thanks!

3

Ah, never mind!

Looks like I didn’t have the textview properly selected when I ctrl-dragged it into the ViewController. It’s working now.

4

This tutorial is more than six months old so questions are no longer supported at the moment for it. We will update it as soon as possible. Thank you! :]

7

This post has now been updated for Xcode 10.3 and Swift 5!
As a result, the associated forum topic has been re-opened for questions and comments, thanks @rwenderlich.

Note: I’m slowly working on updating macOS dev related posts, if you have any suggestions for which to do next, message me directly.

8

This tutorial is more than six months old so questions are no longer supported at the moment for it. Thank you!