Hi, I'd like to write this Swift code in Kotlin/Na...

# kotlin-native

[louiscad]

Hi, I'd like to write this Swift code in Kotlin/Native:

let label = UILabel(frame: CGRect(x: 0, y: 0, width: 300, height: 21))
        label.center = CGPoint(x: 160, y: 285)
        label.textAlignment = .center
        label.font = label.font.withSize(25)
        label.text = CommonKt.createApplicationScreenMessage()
        view.addSubview(label)

Per the Obj-C interop doc, I should be able to write val label = UILabel.create(frame: CGRect.create(x = 0, y = 0, width = 300, height = 21)) for the first line, but there's no create(…) function in the autocomplete when using IntelliJ CE 2018.3 EAP with Kotlin 1.3.0-rc-146… Can anyone give me a hint?

[russhwolf]

Try building from command-line anyway. Sometimes the IDE lies to you. Alternatively, RC4 just release (1.3.0-rc-190) so you could try it there

[AnaR]

I'd recommend looking at the objective-c equivalent and translating from that. Kotlin code can invoke objective-c libraries, not swift libraries. For e.g. the rect creation can use CGRectMake(left, top, width, height)

[olonho]

val label = UILabel(CGRectMake(x = 0.0, y = 0.0, width = 300.0, height = 21.0)).apply {
        center = CGPointMake(x = 160.0, y = 285.0)
        textAlignment = NSTextAlignmentCenter
        font = font().fontWithSize(25.0)
        text = "Hello"
    }

[olonho]

not sure if code ^^^ is much different from Swift one

[louiscad]

Thank you!
The code is not much different, but the fact that I write it in Kotlin means that I can expect it from common sources.
Do you know why it has a Make suffix? Is this a Kotlin/Native or Obj-C convention?
Also, I wonder why the initializers overloads (that you translate to the non existing concept of extension constructors) are not exposed as operator fun invoke(…) on the generated companion object?

[olonho]

https://developer.apple.com/documentation/coregraphics/1455245-cgrectmake