Xamarin.Forms get data from device specific code back to the Forms

Question

I have tried, without luck, to get the current location from within the Xamarin.Forms code. I tried the Mobile Services for Xamarin.Forms from their sample code

Answer 1

Take a look at Xamarin.Forms.Labs.Resolver class, add the Labs package from NuGet.

To use it make an interface in your Forms project IMyService, in the iOS/Android project make a class that implements IMyService.

In your AppDelegate register the service with Resolver

public override bool FinishedLaunching (UIApplication app, NSDictionary options)
{
  var resolverContainer = new SimpleContainer ();
  resolverContainer.Register(t=>new MyServiceImplementorClass()); 
  Resolver.SetResolver (resolverContainer.GetResolver ());
}

Then wherever you need to use your service in Forms call Resolver.Resolve:

IMyService fileAccess = Resolver.Resolve ();