Xamarin MVVMCross - Binding on a Google Maps InfoWindow - xamarin

Question

I´m trying to use MvvmCross binding inside a Google Maps InfoWindow, on Android. I have a MvxFragment with a MapFragment inside.
I created a custom xml layout for the InfoWindow and tried to use a MvxFrameControl to display it, like this:
public class InfoWindow : Java.Lang.Object, GoogleMap.IInfoWindowAdapter
{
private readonly BaseStateFragment _window;
private readonly Dictionary<string, Restaurant> _restaurants;
public InfoWindow(BaseStateFragment window, Dictionary<string, Restaurant> restaurants)
{
_window = window;
_restaurants = restaurants;
}
public View GetInfoContents(Marker p0)
{
var layoutContainer = new MvxFrameControl(Resource.Layout.fragment_home_map_info, _window.Context, null)
{
LayoutParameters = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.WrapContent, ViewGroup.LayoutParams.WrapContent),
DataContext = _restaurants[p0.Id] //ViewModel
};
return layoutContainer;
}
public View GetInfoWindow(Marker p0)
{
return null;
}
When I click on the marker, the method GetInfoContents is called but nothing is happening (the event binding is ok, I got it to work without binding).
Any ideas ?
As Requested, the layout file:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<include
android:id="#+id/restaurant_item"
android:layout_width="310dp"
android:layout_height="190dp"
layout="#layout/item_list_restaurant" />
<Button
android:id="#+id/bt_open_restaurant"
android:layout_width="310dp"
android:layout_height="wrap_content"
android:text="#string/label_go_restaurant_page"
android:textColor="#color/colorFacebook"
android:background="#color/lightBlue"
android:paddingStart="8dp"
android:paddingEnd="8dp"
android:layout_gravity="bottom"
android:layout_marginTop="8dp"
android:textAllCaps="true"
android:layout_marginBottom="4dp" />
</FrameLayout>