iphone: Forcefully change orientation from portrait to landscape on navigation

Question

Is there any way that we can Forcefully change app orientation from portrait to landscape while navigating ?

I have a requirement that while pushing controller from

Answer 1

In - (void)viewWillAppear:(BOOL)animated say:

    //this is to force the application to re-evaluate device orientation
    //comment the last lines and see
    //cannot use [[UIDevice currentDevice] setOrientation:UIInterfaceOrientationLandscapeLeft];
    //as "setOrientation" is a private method, and we risk to be kicked out by Apple
    UIViewController *c = [[[UIViewController alloc]init] autorelease];
    [self presentModalViewController:c animated:NO];
    [self dismissModalViewControllerAnimated:NO];

... but first, in your xib, set your view's orientation to the desired one