Initial ViewController changes as per Login in storyboard

Question

In my project initial entry point in storyboard is LoginViewController . If user login to app I always want to show main ViewController of app by escaping LoginViewCntyroller , I did that following code in didFinishLaunchingWithOptions method.

if ([[NSUserDefaults standardUserDefaults] boolForKey:IS_SIGNIN_CHECK])
    dispatch_async(dispatch_get_main_queue(), ^(void){
        [self showMainScreen];
    });

-(void) showMainScreen
{
   UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main_iPhone" bundle:[NSBundle mainBundle]];
   SWRevealViewController  *viewController = (SWRevealViewController *)[storyboard instantiateViewControllerWithIdentifier:@"MainScreenViewID"];
   [self.window makeKeyAndVisible];
   [self.window.rootViewController presentViewController:viewController
                                             animated:NO
                                           completion:nil];
}

It's working fine. But problem is when it goes to MainViewController , it goes to LoginViewController for few seconds and then shows MainViewController . How to avoid that transition form LoginViewController to MainViewController ?

Answer 1

you are presenting your main screen through the LoginViewController . Means first the LoginViewController view will load and display to user and then it will redirect to main screen there is no way to avoid it using this scheme.

But you can avoid it by setting your main screen as rootViewController of main window and it will work fine

if ([[NSUserDefaults standardUserDefaults] boolForKey:IS_SIGNIN_CHECK])
    [self showMainScreen];


-(void) showMainScreen
{
   UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main_iPhone" bundle:[NSBundle mainBundle]];
   SWRevealViewController  *viewController = (SWRevealViewController *)[storyboard instantiateViewControllerWithIdentifier:@"MainScreenViewID"];
   self.window.rootViewController = viewController;
}