How to force view controller orientation in iOS 8?

Question

Before iOS 8, we used below code in conjunction with supportedInterfaceOrientations and shouldAutoRotate delegate methods to force app orie

Answer 1

It looks like even thou here is so much answers no one was sufficient for me. I wanted to force orientation and then on going back go back to device orientation but [UIViewController attemptRotationToDeviceOrientation]; just did'nt work. What also did complicated whole thing is that I added shouldAutorotate to false based on some answer and could not get desired effects to rotate back correctly in all scenarios.

So this is what I did:

Before pushing of controller in call in his init constructor this:

_userOrientation = UIDevice.currentDevice.orientation;
[UIDevice.currentDevice setValue:@(UIInterfaceOrientationPortrait) forKey:@"orientation"];
[self addNotificationCenterObserver:@selector(rotated:)
                               name:UIDeviceOrientationDidChangeNotification];

So I save last device orientation and register for orientation change event. Orientation change event is simple:

- (void)rotated:(NSNotification*)notification {
    _userOrientation = UIDevice.currentDevice.orientation;
}

And on view dissmising I just force back to any orientation I have as userOreintation:

- (void)onViewDismissing {
    super.onViewDismissing;
    [UIDevice.currentDevice setValue:@(_userOrientation) forKey:@"orientation"];
    [UIViewController attemptRotationToDeviceOrientation];
}

And this has to be there too:

- (BOOL)shouldAutorotate {
    return true;
}

- (UIInterfaceOrientationMask)supportedInterfaceOrientations {
    return UIInterfaceOrientationMaskPortrait;
}

And also navigation controller has to delegate to shouldAutorotate and supportedInterfaceOrientations, but that most people already have I believe.

PS: Sorry I use some extensions and base classes but names are quite meaningful so concept is understandable, will make even more extensions because it's not too much pretty now.