GPS Location on Android

I'm struggling to get any coordinates of my android emulator (API 11, 2.3.3) Titanium 3.1.3.

On iPhone everything works fine. Any idea why this won't work on Android:

var getGeolocation, showGeolocation, win;
 
win = Ti.UI.createWindow({
    title: "Geolocation",
    backgroundColor: "white"
});
 
getGeolocation = function(callback) {
    Ti.Geolocation.distanceFilter = 10;
    Ti.Geolocation.preferredProvider = Ti.Geolocation.PROVIDER_GPS;
    Ti.Geolocation.purpose = "Can I has le geolocation pls";
 
    Titanium.Geolocation.getCurrentPosition(function(e) {
        if (e.error) {
            if (callback) {
                callback(null);
            }
        } else {
            if (callback) {
                callback(e.coords);
            }
        }
    });
};
 
showGeolocation = function(coords) {
    if (coords != null) {
        alert("latitude: " + coords.latitude + "\n longitude: " + coords.longitude);
    } else {
        alert("I don't work on Android :/");
    }
};
 
getGeolocation(showGeolocation);
 
win.open();

But always get the error message:

[ERROR][GeolocationModule(  667)] (KrollRuntimeThread) [1751,1751] Unable to get current position, location is null