Now that we have created the TwitterSignInPageRenderer class that will be responsible for displaying the Twitter UI dialog, our next step is to begin updating the underlying C# code within our WalksMainPage code-behind file. This will give it the ability to display our TwitterSignInPage ViewModel if we haven't determined that the user has signed in.
Let's take a look at how we can achieve this by following these steps:
- Locate and open the WalksMainPage.xaml.cs file, which is located within the Views folder, ensuring that it is displayed within the code editor, and enter the following highlighted code sections:
// // WalksMainPage.xaml.cs // Displays Walk Information within a ListView control ...