There is no need to import quick classes for use in other quick access classes. They are available for use automatically.
In Swift, you can only import a module, for example. any wireframe, such as UIKit, MapKit, as shown below. You cannot import fast classes.
import UIKit import MapKit
Just be sure to select it for use for the purpose you are trying to use.
Check out the images below to find out more.
In this image, my HomeViewController.swift selected for use in the AutolayoutDemo module. 
In the following image, I unchecked the AutolayoutDemo check box for the DetailsViewController.swift class. 
So, now when I try to use the DetailsViewController compiler, I get an error, as shown below in the HomeViewController . 
Hitendra hckr
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