App.xaml.cs

public partial class App : Application
{
	public App()
	{
		InitializeComponent();

		// 1. Create a new EasyMobileServiceClient.
		var client = EasyMobileServiceClient.Create();

		// 2. Initialize the library with the URL of the Azure Mobile App you created in Step #1.
		// Example: http://appservicehelpers.azurewebsites.net
		client.Initialize(Constants.ApplicationURL);

		// 3. Register a model with the EasyMobileServiceClient to create a table.
		client.RegisterTable<TodoItem>();

		// 4. Finalize the schema for our database. All table registrations must be done before this step.
		client.FinalizeSchema();

		// The root page of your application
		MainPage = new TodoList(client);
	}

	protected override void OnStart()
	{
		// Handle when your app starts
	}

	protected override void OnSleep()
	{
		// Handle when your app sleeps
	}

	protected override void OnResume()
	{
		// Handle when your app resumes
	}
}

usings.cs

using AppServiceHelpers;
using Xamarin.Forms;