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macosswift4nstextfield

Passing a value from inputField to NSTextField

I'd like to pass string value from one NSTextField to another NSTextField pressing a button. I used for this for-in loop. I need to pass a value from inputField to visibleText1, then to visibleText2 and then to visibleText3. But it doesn't work.

import Cocoa

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {

    @IBOutlet weak var window: NSWindow!
    @IBOutlet weak var inputField: NSTextField!
    @IBOutlet weak var visibleText1: NSTextField!
    @IBOutlet weak var visibleText2: NSTextField!
    @IBOutlet weak var visibleText3: NSTextField!

    func applicationDidFinishLaunching(aNotification: NSNotification) { }
    func applicationWillTerminate(aNotification: NSNotification) { }

    @IBAction func applyButton(sender: AnyObject) {      
        for u in (visibleText1.stringValue...visibleText3.stringValue) {
            visibleText.stringValue[u] = inputField.stringValue
            inputField.stringValue = ""
        }
    }
}

Xcode gives me an error:

// Type 'ClosedInterval<String>' does not conform to protocol 'SequenceType'

How how to do it right?

enter image description here

Solution

  • No you can't do that because you can't create a range of string values of different text fields.

    You could make an array of the three fields and enumerate that:

    @IBAction func applyButton(sender: AnyObject) {      
    for field in [visibleText1, visibleText2, visibleText3] {
        field.stringValue = inputField.stringValue
    }
    inputField.stringValue = ""
}

    or with the forEach function

    @IBAction func applyButton(sender: AnyObject) {      
    [visibleText1, visibleText2, visibleText3].forEach {
        $0.stringValue = inputField.stringValue
    }
    inputField.stringValue = ""
}

    Resetting the inputField in the repeat loop would always apply an empty string after the first iteration.