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iosswift3swift-playground

How to show the prototyping preview in Playgrounds?

I can't find an updated article that shows how to show a live preview of my UIView animations. Methods like XCShowView() aren't used in Swift anymore, according to the error I received in the playground editor.

Does anyone know how to show the prototyping preview in Playgrounds?

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Solution

  • This works in Xcode 8:

    import UIKit
import PlaygroundSupport

let v = UIView(frame: CGRect(origin: .zero, size: CGSize(width: 600, height: 600)))
v.backgroundColor = UIColor.green

PlaygroundPage.current.liveView = v

    Create a playground with that code and you should see a green box on the live view.

    Remember to show the "live" assistant editor. See PlaygroundSupport reference for more.