HybridWebView not firing the LoadFinished event - xamarin.ios

Question

I'm working on my first Xamarin.IOS application and I would like to retrieve the HTML page loaded in the webview. In order to accomplish this I have referred Google and Xamarin forum and implemented the following steps but still the LoadFinished event is not getting triggered. Can anyone please help me fix this problem.
Made the AppDelegate to extend from XFormsApplicationDelegate
In the FinishedLaunching event, I have the following set of code
public override bool FinishedLaunching(UIApplication application, NSDictionary launchOptions)
{
// Override point for customization after application launch.
// If not required for your application you can safely delete this method
SetIoc();
Xamarin.Forms.Forms.Init();
XLabs.Forms.XFormsAppiOS.Init();
var webHybrid = new XLabs.Forms.Controls.HybridWebViewRenderer();
return true;
}
private void SetIoc()
{
var resolverContainer = new SimpleContainer();
resolverContainer.Register<IDevice>(t => AppleDevice.CurrentDevice)
.Register<IJsonSerializer, SystemJsonSerializer>()
.Register<IDependencyContainer>(t => resolverContainer);
Resolver.SetResolver(resolverContainer.GetResolver());
}
MyViewController has the following code
public partial class MainViewController : UIViewController
{
HybridWebView webview;
protected MainViewController(IntPtr handle) : base(handle)
{
// Note: this .ctor should not contain any initialization logic.
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
var webHybrid = new HybridWebViewRenderer();
webview = new HybridWebView();
}
void Webview_LoadFinished(object sender, EventArgs e)
{
this.webview.RegisterCallback("dataCallback", s =>
{
System.Diagnostics.Debug.WriteLine(s);
this.webview.LoadFinished -= Webview_LoadFinished;
this.webview.RemoveCallback("dataCallback");
});
this.webview.InjectJavaScript("Native(\"dataCallback\", document.getElementsByTagName('html')[0].innerHTML);");
}
private void GalleryButtonTouchUpAsync(object sender, EventArgs e)
{
webview.Uri = new Uri("http://google.co.in");
webview.LoadFinished += Webview_LoadFinished;
}
}
Can you please help what is that I 'm missing?