Setting up RNSwipeViewController in code

gistfile1.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    
    // PTMasterController is a subclass of RNSwipeViewController
    PTMasterController *masterController = [[PTMasterController alloc] init];

    PTSchemeController *scheme = [[PTSchemeController alloc] init];
    PTUtilityController *utility = [[PTUtilityController alloc] init];
    PTWritingController *writing = [[PTWritingController alloc] init];
    
    masterController.centerViewController = writing;
    masterController.rightViewController = utility;
    masterController.leftViewController = scheme;
    
    masterController.leftVisibleWidth = kGridSize + 3 * kPadding;
    masterController.rightVisibleWidth = kGridSize * 2 + 3 * kPadding;
    
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    self.window.rootViewController = masterController;

    self.window.backgroundColor = [UIColor underPageBackgroundColor];
    [self.window makeKeyAndVisible];
    
    return YES;
}