Application Development with Swift 2 (Video 15)

This video tutorial covers the implementation of UIImagePickerController, focusing on setting up delegates and notifications. It explains how to present a view controller, handle image selection, and save images to a file path. The tutorial also touches on the Model-View-Controller (MVC) concept and the view lifecycle, preparing viewers for the next topic on table views.

What is the primary purpose of the UI Image Picker Controller?

• To edit images within the app

• To select and import images from the user's library

• To create new images using the camera

• To delete images from the user's library

Which protocol must the UI Image Picker Controller conform to?

• UITableViewDelegate

• UIResponder

• UIViewController

• UIImagePickerControllerDelegate

What method is used to dismiss the image picker when the user cancels?

• imagePickerControllerDidCancel

• imagePickerControllerDidFinishPickingMediaWithInfo

• dismissViewControllerAnimated

• cancelImagePicker

What is the first step in saving an image to a file path?

• Check if the media type is an image

• Rename the image file

• Create a new directory for the image

• Convert the image to JPEG format

Which framework is required to compare media types?

• CoreData

• UIKit

• MobileCoreServices

• Foundation

What is the final step in saving an image to a file path?

• Add the image data to a new file at the file path

• Encrypt the image for security

• Compress the image to reduce file size

• Display the image in the app

What is the purpose of the Model-View-Controller concept discussed in the video?

• To simplify the app's design

• To improve the app's performance

• To separate the app's data, user interface, and control logic

• To enhance the app's security