Storing information to show within your glance controller

In this section, we will take a look at how we can use the NSStandardUserDefaults class to store the selected shopping list item when the user taps on a specific row within the WKInterfaceTable controller. This will then be displayed within the glance interface controller's WKInterfaceController class:

1. Open the InterfaceController.swift file located within the ShoppingList WatchKit Extension group in the project navigation window.

2. Next, locate the didSelectRowAtIndex method and enter the following highlighted code snippet:

   // MARK: WKInterfaceTable Delegate Callbacks
       
   // Handle when a row has been selected within our table
   override func table(table: WKInterfaceTable, didSelectRowAtIndex rowIndex: Int) {
           
      // Send the product to be charged by sending the product as 
      // a dictionary object,
      // and then converting it to a 'Product' type value in our 
      // application delegate.
      
      // We will then have our iOS app...