Setting up the SpeechTalk.iOS project

Let's also have a look at the project setup on the native side for iOS and Android. Open the AppDelegate.cs file; it should look like this:

    [Register ("AppDelegate")] 
    public partial class AppDelegate : global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate 
    { 
        public override bool FinishedLaunching (UIApplication app, NSDictionary options) 
        { 
            global::Xamarin.Forms.Forms.Init (); 
 
            LoadApplication (new App ()); 
 
            return base.FinishedLaunching (app, options); 
        } 
    } 

Have a look at the super class:

global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate 

Since Xamarin.Forms 1.3.1 and the updated unified API, all our app delegate should be inheriting is Xamarin.Forms.Platform.iOS.FormsApplicationDelegate. We also have the standard FinishedLaunching function; in here we must call Forms.Init which will initialize Xamarin.Forms, and then call LoadApplication with a new instantiation of the App class. We then return the base class FinishedLaunching function, passing in the app and options objects.

You can see that this FinishedLaunching function is an override of the standard app delegate function.

Note

We must initialize forms before anything else occurs in this function.

Let's run the iOS application and see what happens:

Fantastic, a blank application. That means we have now successfully run our first iOS Xamarin.Forms project.