iOS - How to restrict some specific to portrait or landscape mode ?
Sometimes, you need to disable some specific view controllers to portrait or landscape mode. This is simple . All you need to to is to implement
- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
method in Appdelegate.m.
Let's say in my app , there is only StockViewController can be showed as landscape mode.
- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {
//only stockviewcontroller can be showed in landscape view
UITabBarController *rootVC = (UITabBarController *)window.rootViewController;
UINavigationController *rootNavi = (UINavigationController *)rootVC.selectedViewController;
UIViewController *presentedVC = rootNavi.viewControllers[rootNavi.viewControllers.count - 1];
if ([presentedVC isKindOfClass:[StockViewController class]]) {
return UIInterfaceOrientationMaskAll;
} else {
return UIInterfaceOrientationMaskPortrait;
}
}
As you can see , all you need to do is to find out the view controller that is presented by the window's root.rootViewController, and return the orientation you want .
