Search code examples
ios6orientationuiinterfaceorientation

iOs 6 return from UIViewController in landscape to portrait

So I have an application with navigation controller, the last one viewcontoller can be rotated to any orientation. And the others must be in portrait only. So I have troubles when we rotate the last viewController in landscape and then pressing back button on navigation controller. We go to previous one and see that layout are broken. I thought the only way is to use something like this:

[[UIDevice currentDevice] performSelector:NSSelectorFromString(@"setOrientation:") withObject:(id)UIInterfaceOrientationPortrait]

(I know it's a hack and it would be preferred to avoid such things) But wherever I tried it - it caused me with different layout problems. The usual methods like:

- (NSUInteger)supportedInterfaceOrientations
- (BOOL)shouldAutorotate

and so on for handle orientation are useless in this situation. Thanks in advance.

Solution

  • I solved this problem for parent of those viewControllers who must be in portrait:

    -(NSUInteger)supportedInterfaceOrientations{
 return UIInterfaceOrientationMaskPortrait;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation{
 return UIInterfaceOrientationPortrait;
}
- (void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
 [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortrait animated:YES];
}

    For rotation viewController:

    -(NSUInteger)supportedInterfaceOrientations{
 return UIInterfaceOrientationMaskAll;
}

    For Navigation Controller:

    - (BOOL)shouldAutorotate {

BOOL result = self.topViewController.shouldAutorotate;

 return result;
}

- (NSUInteger)supportedInterfaceOrientations {

NSUInteger result = self.topViewController.supportedInterfaceOrientations;

return result;
}

    And added this to AppDelegate:

    - (NSUInteger) application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {

UINavigationController *navigationController = (UINavigationController *)self.window.rootViewController;
if ([navigationController.topViewController isKindOfClass:[RotationViewController  class]])
    return UIInterfaceOrientationMaskAll;
else
    return UIInterfaceOrientationMaskPortrait;
}