EnterRegions event on iOS Geofence module

app.js

var Geofence = require("ti.geofence");
var window = Ti.UI.createWindow({
    backgroundColor: 'white'
});
 
var titleInWinA = Ti.UI.createLabel({
    text: 'Receiving location ... ',
    left: 70,
    top: 100,
});
window.add(titleInWinA);
 
window.addEventListener("open", function() {
    checkLocationPermissions();
});
 
function checkLocationPermissions() {
    if (!Ti.Geolocation.hasLocationPermissions()) {
        Ti.Geolocation.requestLocationPermissions(Ti.Geolocation.AUTHORIZATION_ALWAYS, function(e) {
            if (!e.success) {
                Ti.API.error("Error requesting location permissions: " + e.error);
                return;
            }
 
            getCurrentPosition();
        });
    } else {
        getCurrentPosition();
    }
}
 
function getCurrentPosition() {
    Ti.Geolocation.getCurrentPosition(function(e) {
        if (e.error) {
            alert('Error: ' + e.error);
        } else {
            Enterregions(e.coords.latitude, e.coords.longitude);
        }
    });
}
 
function Enterregions(latitude, longitude) {
 
    Ti.API.info(latitude + '\n' + longitude);
    titleInWinA.setText(latitude + '\n' + longitude);
 
    var newRegion = Geofence.createRegion({
        center: {
            latitude: latitude,
            longitude: longitude
        },
        radius: 500,
        identifier: 'Appcelerator'
    });
 
    Geofence.startMonitoringForRegions([newRegion]);
 
    Geofence.addEventListener("enterregions", function(e) {
        Ti.API.info('####### enterregion #######: ' + JSON.stringify(e));
        alert('enter region fired');
    });
 
    Geofence.addEventListener("monitorregions", function(e) {
        Ti.API.info('####### monitorregions #######: ' + JSON.stringify(e));
    });
}
 
window.open();