How does Xcode load the main storyboard?

Question

When I create a new single view application in Xcode 4.6 using storyboard, we can see that the main function creates a new application using the application delegate like th

Answer 1

It is started from the UIMainStoryboardFile setting from your info.plist file. Xcode then creates a main window, instantiates your first view controller, and adds it to the window. You can still do this in code similar to the .nib using

UIStoryboard* storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
UIViewController* initialView = [storyboard instantiateInitialViewController];