Launching into portrait-orientation from an iPhone 6 Plus home screen in landscape orientation results in wrong orientation

Question

The actual title for this question is longer than I can possibly fit:

Launching an app whose root view controller only supports portrait-orientation but which otherw

Answer 1

I got same bug on my app, I figured it out with this solution

Firstly it didn't work but after some dig I have to do it on initial controller after splash screen.

Answer is OjbC language let me update it to Swift

override var shouldAutorotate: Bool {
    return true
}

override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
    return .portrait
}

Don't forget that should on the initial view controller.