iOS Programming: The Big Nerd Ranch Guide, 7th Edition

Taking Pictures and UIImagePickerController

In the choosePhotoSource(_:) method, you will instantiate a UIImagePickerController and present it on the screen. When creating an instance of UIImagePickerController, you must set its sourceType property and assign it a delegate. Because there is set-up work needed for the image picker controller, you need to create and present it programmatically instead of through the storyboard.

Creating a UIImagePickerController

Close the editor showing Main.storyboard. In DetailViewController.swift, add a new method that creates and configures a UIImagePickerController instance. You will need to create the UIImagePickerController instance from more than one place, so abstracting it into a method ...