The correct way to set a light status bar text color in iOS 7 based on different ViewControllers

Question

I need to let a specific ViewController embedded in an UINavigationController to have light status bar text color (but other ViewControllers to beh

Answer 1

Here's an improvement to Groot answer, in form of a simple category to UINavigationController, without the need to subclass UINavigationController.

Swift

extension UINavigationController {
    override public func preferredStatusBarStyle() -> UIStatusBarStyle {
        return topViewController?.preferredStatusBarStyle() ?? .Default
    }
}

Swift 3 & Swift 4

extension UINavigationController {
    open override var preferredStatusBarStyle: UIStatusBarStyle {
        return topViewController?.preferredStatusBarStyle ?? .default
    }
}

Objective-C

@implementation UINavigationController (StatusBarStyle)

- (UIStatusBarStyle)preferredStatusBarStyle 
{
    return [self.topViewController preferredStatusBarStyle];
}

@end