iOS Programming Cookbook

How to do it...

To get directions between a source and destination, perform the following steps:

1. Let's continue using our demo to add a way to display directions between two locations.
2. Go to storyboard and open our view controller to add a UIButton at the bottom with the title Directions. Add constraints to the button to stick it to the bottom, like this:

3. Add an IBAction function, didClickOnDirections, to the button in ViewController.swift like this:

      @IBAction func didClickOnDirections(_ sender:
          AnyObject) { 
      } 

4. Update the didClickOnDirections function like this:

 @IBAction func didClickOnDirections(_ sender: AnyObject) { let mapItem1 ...