Question

I have an iPad app that supports UIDeviceOrientationPortrait and UIDeviceOrientationLandscapeLeft.

I did include this method :

    - (BOOL)shouldAutorotateToInterfaceOrientation:        
      (UIInterfaceOrientation)interfaceOrientation
    {
        return (interfaceOrientation == UIInterfaceOrientationPortrait ||
        interfaceOrientation == UIInterfaceOrientationLandscapeLeft );
    }

The issue I have is that I need it to load in the UIDeviceOrientationLandscapeLeft mode, just for the load, because my UI controls will be setup properly. how can I force it only once on load.

One thing I wanna note is that this has to be min iOS 5.

Answer 1

I recently had similar problem, but I wanted to change from Landscape to Portrait by force, I knew in old versions there were built in methods but unfortunately we are never sure when and what is working for us, but I gave this code a try and It worked for me, but my scenario was to forcing from landscape to portrait, which is opposite to your scenario, but anyways it works, here is the code possibly for your scenario;

    -(NSUInteger)supportedInterfaceOrientations

{
    return UIInterfaceOrientationMaskLandscape;

}

-(void)viewWillAppear:(BOOL)animated {

    UIApplication* application = [UIApplication sharedApplication];

    if (application.statusBarOrientation != UIInterfaceOrientationLandscapeLeft)
    {
        UIViewController *c = [[UIViewController alloc]init];
        [self presentModalViewController:c animated:NO];
        [self dismissModalViewControllerAnimated:NO];
    }


    [super viewWillAppear:animated];
}

EDIT working on IOS 6.1 I have added two more methods which I did not add in my previous post, I add now all what is working for my application…

- (BOOL)shouldAutorotate
{

    return NO;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationLandscapeLeft;
}

the idea is to check the statusbar orietnation and add and dismiss a modalViewController and it works for me to force from one to another orientation.