Foreground Service

app.js

function monitorLocation() {
	function start() {
		Ti.Geolocation.accuracy = Ti.Geolocation.ACCURACY_HIGH;
		Ti.Geolocation.addEventListener("location", function(e) {
			Ti.Media.vibrate();
			Ti.API.info("@@@ Location Received: " + JSON.stringify(e.coords));
		});
	}
	var hasPermission = Ti.Geolocation.hasLocationPermissions(Ti.Geolocation.AUTHORIZATION_WHEN_IN_USE);
	if (!hasPermission) {
		Ti.Geolocation.requestLocationPermissions(Ti.Geolocation.AUTHORIZATION_WHEN_IN_USE, function(e) {
			if (e.success) {
				start();
			}
		});
	} else {
		start();
	}
}

var SECONDS = 20;

// Start the service.
var intent = Ti.Android.createServiceIntent({
	url: "Service.js",
});
intent.putExtra('interval', SECONDS * 1000);

Ti.Android.startService(intent);

// Display the main window.
var window = Ti.UI.createWindow();
window.addEventListener("open", function(e) {
	monitorLocation();
});
window.addEventListener("close", function(e) {
	// Stop the service on app exit.
	//Ti.Android.stopService(intent);
});
window.open();

Service.js

Ti.API.info("@@@ Service started.");

// Gets an intent used to resume the app if running in the background.
function getAppResumeIntent() {
	var intent = Ti.App.Android.launchIntent;
	if (!intent) {
		intent = Ti.Android.createIntent({});
	}
	return intent;
}

// Put this service into the foreground state.
var notificationId = null;
Ti.Android.currentService.foregroundNotify(notificationId, Ti.Android.createNotification({
	contentTitle: "Foreground Service",
	contentText: "Content Text",
	contentIntent: Ti.Android.createPendingIntent({
		// Using the launch intent will resume the app when tapped.
		intent: getAppResumeIntent(),
	}),
}));

tiapp.xml

<?xml version="1.0" encoding="UTF-8"?>
<ti:app xmlns:ti="http://ti.appcelerator.org">
 <android xmlns:android="http://schemas.android.com/apk/res/android">  
                <services>
			<service type="interval" url="Service.js"/>
		</services>
		<manifest>
         <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
        </manifest>
    </android>
    <modules/>
</ti:app>