UIViewController trouble in landscape mode - ios

Question

I am trying create app without Story Book and xibs. It must work landscape mode only.
But I got trouble:
http://i.stack.imgur.com/FPzkk.png
Red - it's view of my controller. It's looks like it in wrong position and not rotated.
For create I use this code in AppDelegate:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
CGRect screenRect = [[UIScreen mainScreen] bounds];
self.window = [[UIWindow alloc] initWithFrame:screenRect];
EmulationViewController* cntr = [EmulationViewController sharedController];
[self.window addSubview:cntr.view];
[self.window makeKeyAndVisible];
return YES;
}
And
- (void)loadView
{
CGRect screenRect = [[UIScreen mainScreen] bounds];
CGRect applicationFrame = [[UIScreen mainScreen] applicationFrame];
EmuWindow* view = [[EmuWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
view.backgroundColor =[UIColor redColor];
self.view = view;
}
It's tested on simulator with iOS 8. What I do wrong?

Answer 1

You need to make the view controller the root view controller, instead of this:
[self.window addSubview:cntr.view];
... do this:
self.window.rootViewController = cntr;
If you don't do this it won't get automatically rotated...
Then if you want it to always be in landscape, you can add this to the view controller code:
-(NSUInteger) supportedInterfaceOrientations {
return UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight;
}