• Using the graphic below, create the indicated IBOutlets according to the prescribed names.

• Using the graphic below, create the indicated IBActions according to the prescribed names.

NOTE: all three tip buttons should link to the same IBAction called tipChanged.

• Delete the entire viewDidLoad() method in ViewController.swift

By the end you should end up with a ViewController.swift file that looks like this:

• Right click on the ViewController class name, select Refactor → Rename and change it to say CalculatorViewController instead.

SOLUTION

You can check out the solution to this step at the link below. Simply clone the solution project and compare it against your own.

https://github.com/appbrewery/Tipsy-iOS13-Completed/tree/8bd5b4c1ca9575e08c232f37a393439382777ae0