How to make the Gradient be full screen when the screen is rotated?

Question

iOS

let GradientLayer = CAGradientLayer()
        GradientLayer.frame = self.view.bounds //рамка нашего градиента = границам вью
        GradientLayer.colors = [ #colorLiteral(red: 0.1607843137, green: 0.1764705882, blue: 0.5137254902, alpha: 1).cgColor , #colorLiteral(red: 0.8392156863, green: 0.6666666667, blue: 0.7960784314, alpha: 1).cgColor ]
        GradientLayer.startPoint = CGPoint(x: 0.0, y: 0.0)
        GradientLayer.endPoint = CGPoint(x: 0.0, y: 1.0)
        self.view.layer.insertSublayer(GradientLayer, at: 0)

there is a code to create a gradient.
In the vertical position, everything is fine, it is full screen, as it should be.
In the horizontal position, it becomes only half the screen, and does not stretch as we would like

spoiler

Answer 1

just the size of the view (self.view.bounds) needs to be changed and the function
needs to be restarted so that when the screen is flipped, redrawing occurs due to changes in the size of the
view if UIDevice.current.orientation.isPortrait {
//redraw here
}

Answer 2

I support Vovanys , and I supplement - all work with layers requires manual size management. No autolayouts are applied to them.