iOS 12 Programming for Beginners - Third Edition

Setting up notifications 

Now that we have permission, we need to set up notifications. We will start setting up our buttons:

1. Open the RestaurantDetailViewController.swift file.
2. At the top of the file, under import UIKit, add the following:

import UserNotifications

3. Add the following method after our @IBAction func unwindReviewCancel(segue: UIStoryboardSegue) {} method and before the last curly bracket of our class file:

@IBAction func onTimeTapped(sender: UIButton) {} 

4. Save the file, and you will see an empty circle appear next to this new @IBAction.
5. Open the RestaurantDetail.storyboard for which we are going to use the time buttons for our notifications. Select each button. In the Attributes inspector, update the text inside of eachbutton ...