Question

I have an application which normally is a portrait app and only show landscape view for one UIViewController. It works fine until the new iOS 6 is released.

I really don’t understand how orientation works in iOS 6. So I wrote a testing app. Here is what I did:

• Set the orientation of the application to support all orientations.

• I’m using story board. The rootViewController is embedded in UINavigationController which is in portrait.

• The code in rootViewController:

  -(NSUInteger)supportedInterfaceOrientations

  {

  return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskPortraitUpsideDown;

}

• When I clicked the Open bar button, I’ll push another (SecondViewController) view controller which supposed to be in landscape mode:

  -(NSUInteger)supportedInterfaceOrientations
  {
  return UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight;
  }

Although this method is called correctly, the second view controller is always also in portrait mode.

Can anybody give me some suggestions? Thanks

Answer 1

Here is my solution:

In second view controller’s viewDidLoad:

- (void)viewDidLoad
{
    [super viewDidLoad];

    UIViewController *viewController = [[UIViewController alloc] init];
    [self presentViewController:viewController animated:NO completion:^{
        [viewController dismissViewControllerAnimated:NO completion:nil];
    }];
}

This will force the second view to rotate to landscape orientation which solved my problem. And it works for iOS 5 and 6.