I'm doing the Facebook integration tutorial, I want to show my MainViewViewController if the user has a valid token for the current state otherwise I want to show LoginViewController.
MainViewAppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
if (FBSession.activeSession.state == FBSessionStateCreatedTokenLoaded) {
// To-do, show logged in view
} else {
// No, display the login page.
[self showLoginView];
}
return YES;
}
- (void)showLoginView
{
UIStoryboard *mainstoryboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
LoginViewController* loginViewController = [mainstoryboard instantiateViewControllerWithIdentifier:@"LoginViewController"];
[self.window.rootViewController presentViewController:loginViewController animated:YES completion:NULL];
}
Console error :
Warning: Attempt to present <LoginViewController: 0xb492fd0> on <MainViewViewController: 0xb1bd820> whose view is not in the window hierarchy!
I don't want to use a NavigationController.
I had the same issue. Based on the answer to this question, I added [self.window makeKeyAndVisible]
just before presentViewController:animated:completion:
, and that fixed it for me.
In your case, showLoginView becomes
- (void)showLoginView
{
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
LoginViewController *loginViewController = [storyboard instantiateViewControllerWithIdentifier:@"LoginViewController"];
[self.window makeKeyAndVisible];
[self.window.rootViewController presentViewController:loginViewController animated:YES completion:NULL];
}