iOS Present modal view controller on startup without flash

Question

I\'d like to present modally, at first startup, a tutorial wizard to the user.

Is there a way to present a modal UIViewController on application startup

Answer 1

It can be late but in your AppDelegate you can do this :

//Set your rootViewController
self.window.rootViewController=myRootViewController;
//Hide the rootViewController to avoid the flash
self.window.rootViewController.view.hidden=YES;
//Display the window
[self.window makeKeyAndVisible];

if(shouldPresentModal){

    //Present your modal controller
    UIViewController *lc_viewController = [UIViewController new];
    UINavigationController *lc_navigationController = [[UINavigationController alloc] initWithRootViewController:lc_viewController];
    [self.window.rootViewController presentViewController:lc_navigationController animated:NO completion:^{

        //Display the rootViewController to show your modal
        self.window.rootViewController.view.hidden=NO;
    }];
}
else{

    //Otherwise display the rootViewController
    self.window.rootViewController.view.hidden=NO;
}