Storyboard by viewController factory method

UIViewController+JTCAddition.h

#import <UIKit/UIKit.h>
@interface UIViewController (JTCAddition)
+(instancetype) viewControllerFromSameNameStoryboard;
+(UINavigationController*) viewControllerFromSameNameStoryboardInNavigationController;
@end

UIViewController+JTCAddition.m

#import "UIViewController+JTCAddition.h"

@implementation UIViewController (JTCAddition)
+(instancetype) viewControllerFromSameNameStoryboard {
    UIStoryboard * storyboard = [UIStoryboard storyboardWithName:NSStringFromClass(self) bundle:nil];
    if (!storyboard) {
        return nil;
    }
    return [storyboard instantiateInitialViewController];
}

+(UINavigationController*) viewControllerFromSameNameStoryboardInNavigationController {
    UINavigationController * nav = [[UINavigationController alloc] initWithRootViewController:[self viewControllerFromSameNameStoryboard]];
    return nav;
}
@end