Question

My app must NOT auto-rotate at all. But it includes a screen which tells the user to rotate his phone (and not the opposite!).
To do that, the ViewController must make an animated rotation (without any rotation event) when the screen is displaying.

So I used

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeLeft animated:animated];
}

- (void)viewWillDisappear:(BOOL)animated {
    [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortrait animated:animated];
    [super viewWillDisappear:animated];
}

And

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
    return YES;
}

to make my screen rotate, as every website and documentation recommend.

But only the StatusBar rotates: my NavigationBar remains stuck at the top.

Answer 1

I would use a CGAffineTransform perhaps on the navigationcontroller view? Simply rotate it using an animation block 90 degrees?