Use current orientation on push view controller

Question

I have two view controllers, foo that is portrait only and bar that is portrait + landscape. When I push bar onto foo, foo always starts in portrait orientation. The user needs to tilt the phone after the push to get the os to detect the new orientation. What I would prefer is foo to be in landscape from the moment it is loaded, if the phone is landscape the moment it is pushed.

How could this be achieved on iOS6 and 7 both?

Answer 1

I would add this code

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // Adapt the orientation with your need
    return (interfaceOrientation != UIInterfaceOrientationPortrait &&
            interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

- (BOOL)shouldAutorotate {
    UIInterfaceOrientation interfaceOrientation = [[UIApplication sharedApplication] statusBarOrientation];

    if (UIInterfaceOrientationIsPortrait(interfaceOrientation))
       return YES;
    else
       return NO;
}

-(NSUInteger)supportedInterfaceOrientations{
    return UIInterfaceOrientationMaskLandscapeLeft;
}