UITabBar orientation trigger not working in viewcontroller.
// I create the view controller attached to the fourth item in the TabBar
contact *fourthViewController= [[contact alloc] init];
localNavigationController = [[UINavigationController alloc] initWithRootViewController:fourthViewController];
[localNavigationController.tabBarItem initWithTabBarSystemItem:UITabBarSystemItemContacts tag:4];

[localControllersArray addObject:localNavigationController];
[localNavigationController release];
[fourthViewController release];

[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];UIInterfaceOrientation orientation = [UIDevice currentDevice].orientation;

if (orientation == UIInterfaceOrientationLandscapeLeft || orientation == UIInterfaceOrientationLandscapeRight)
{
    NSLog(@"Landscape");

}
else
{
    NSLog(@"Portrait");

}