The previous chapters focused on creating an overview page. You learned how to create an overview of contacts with a
UICollectionView. Both of these pages lacked something that is essential in almost any iOS application: navigation. Users expect to be able to tap on items in an overview and to be taken to a detail page that discloses more information about the object they tapped. Our app currently does not do this.
You'll learn how to set up navigation by using storyboards and segues. Then, you'll see how to pass data between views, which will make setting up detail pages for contacts a breeze.
Also, the HelloContacts app is currently built with just the iPhone in mind. In reality, iOS ...