Orientation problem - objective-c

Question

i have created and ipad application.
i started off with window based application and added 2 view controllers(loginviewcontroller , detailviewcontroler ) . both have their own XIB'S. the added the loginviewcontroller object in in the appdelegate applicationdidfinishlaunch method , i wrote code to move back and forth between 2 views. Here is the code.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
Login *mylogin = [[Loginviewcontroller alloc] init];
[window addSubview:mylogin.view];
//detailview *tv=[[detailviewcontroller alloc] init];
// [window addSubview:tv.view];
[self.window makeKeyAndVisible];
return YES;
}
The problem is that the willrotatetointerfaceorientation method runs only from the loginviewcontroller class even if i am in the detailviewcontroller.
if i add the tickets view to the appdelegate then it runs the willrotatetointerfaceorientation method from detailviewcontroller , so in summary it runs the willrotatetointerfaceorientation method from only the object which was added to appdelegate.
how do i make the 2 view controllers run their respective willrotatetointerfaceorientation methods?

Answer 1

UIViewController has the method
(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
override this method in your both viewcontroller classes(i.e. (loginviewcontroller , detailviewcontroler )
write this code
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
//write your code which you want to during rotation
return Yes;
}

Answer 2

The rotation messages are being sent only to the controller of topmost view. You should forward them manually in appropriate methods.