Login View controller before SWRevealViewController

Question

I followed parse.com tutorials on how to implement login + register + segue to main controller if registration or login is successful. This works beautiful.

I then wanted to implement a side navigation using SWRevealViewController. I followed APPCODA link on this and got it working only when "SWRevealViewController" is the initial view controller.

When i have my parse login controller as initial i can't see anything from the navigational controller aka "SWRevealViewController."

how would i be able fix this, make my login/register controllers the initial controllers and still be able to have SWRevealViewController when login/register is successful?

i would appreciate any help or pointers.

below is my APPDelegate.m

#import "AppDelegate.h"
#import <Parse/Parse.h>
#import <GoogleMaps/GoogleMaps.h>

@interface AppDelegate ()

@end

@implementation AppDelegate



- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

LoginView *lv = [[LoginView alloc]init];

SidebarViewController *sbvc = [[SidebarViewController alloc]init];
UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:lv];
UINavigationController *menuVC = [[UINavigationController alloc]initWithRootViewController:sbvc];

SWRevealViewController *revealController = [[SWRevealViewController alloc]initWithRearViewController:menuVC frontViewController:nav];
revealController.delegate = self;

self.menu = revealController;
self.window.rootViewController = self.menu;


[GMSServices provideAPIKey:@"XXXXXXXXXX"];

[Parse setApplicationId:@"XXXXXXXXXXXXX"
              clientKey:@"XXXXXXXXXXXXX"];

[PFAnalytics trackAppOpenedWithLaunchOptions:launchOptions];



  return YES;
    }

Answer 1

In apps with user sessions, it is usually best to keep login/signup on a separate view hierarchy from the rest of the app and present the internal structure if there is an active session. You can achieve this by checking for

[PFUser currentUser]

as it will return nil if the user is not logged in.

Provide a check in your AppDelegate like so:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    // .. Rest of your initialization code

    if ([PFUser currentUser]) {

        // Let's pop them right to the home screen
        [self showHomeScreen];
    }
    else {

        // Present login vc
        LoginView *lv = [[LoginView alloc] init];
        UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:lv];
        self.window.rootViewController = nav;
    }
    return YES;
}

- (void)showHomeScreen {

    SidebarViewController *sbvc = [[SidebarViewController alloc] init];
    UINavigationController *menuVC = [[UINavigationController alloc] initWithRootViewController:sbvc];

    UIViewController *home = [[UIViewController alloc] init];
    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:home];

    SWRevealViewController *revealController = [[SWRevealViewController alloc] initWithRearViewController:menuVC frontViewController:nav];

    self.window.rootViewController = revealController;
}

Then, by including

- (void)showHomeScreen;

in AppDelegate.h, you can call this method upon successful registration/login:

AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
[delegate showHomeScreen];