draw(_ rect:CGRect) is not updating Playground Assistant editor preview

Asked Mar 16 '17 at 16:12

Active Mar 17 '17 at 20:41

Viewed 61 times

I tried different code in draw implementation. From custom UIBezierPath to simply changing background colour to random. Results are successfully updated in preview, which is shown under the line on clicking "Show Results" button. But nothing happens to assistant editor timeline view.

Here is my draw override

override func draw(_ rect: CGRect) {
    self.backgroundColor = UIColor(red: CGFloat(arc4random()) / CGFloat(UInt32.max), green: CGFloat(arc4random()) / CGFloat(UInt32.max), blue: CGFloat(arc4random()) / CGFloat(UInt32.max), alpha: 1)
    super.draw(rect)
}

UPD: liveView is assigned properly. It shows but is shows only first result of draw.

edited Mar 17 '17 at 20:41

asked Mar 16 '17 at 16:12

George Sabanov

Did you properly assign your view to the playground's live view? Like this: `PlaygroundPage.current.liveView = yourView` – Eric Aya Mar 16 '17 at 16:13
Eric Aya Yes it is ok. Live view is shown. Problem is that nothing updates in it – George Sabanov Mar 17 '17 at 20:42
Ok maybe you need the playground to run indefinitely instead of step by step, maybe the live view needs it, try this: `PlaygroundPage.current.needsIndefiniteExecution = true` – Eric Aya Mar 17 '17 at 21:35
needsIndefiniteExecution is set too( – George Sabanov Mar 19 '17 at 13:59

draw(_ rect:CGRect) is not updating Playground Assistant editor preview

0 Answers0