无法禁用iPad上的旋转

Question

The App has been released to public for months without any problem. But recently I found it can rotate screen on iPad when running iOS 9 or later. And it works without such problem on iPhone.

Is it a bug of iOS 9? or I make something wrong?

override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {

    return UIInterfaceOrientationMask.Portrait
}

override func shouldAutorotate() -> Bool {
    return false
}

Answer 1

If the Devices is Universal , it doesn't show the Orientation for both iPhone and iPad .

You should choose Devices is iPad , and set up Device Orientation .