Geolocation blog source

1_6_0_geolocation_blog_source

var headingAdded = false;
var locationAdded = false;

Ti.Geolocation.preferredProvider = "gps";

var headingCallback = function(e)
{
    Ti.API.info("Received heading callback");
}
Ti.Geolocation.addEventListener('heading', headingCallback);
headingAdded = true;

var locationCallback = function(e)
{
    Ti.API.info("Received location callback");
}
Ti.Geolocation.addEventListener('location', locationCallback);
locationAdded = true;

var removeGeolocationListeners = function(eventType)
{
    if (headingAdded) {
        Ti.API.info("removing heading callback on " + eventType);
        Ti.Geolocation.removeEventListener('heading', headingCallback);
        headingAdded = false;
    }
    if (locationAdded) {
        Ti.API.info("removing location callback on " + eventType);
        Ti.Geolocation.removeEventListener('location', locationCallback);
        locationAdded = false;
    }
}

// as the destroy handler will remove the listener, only set 
// the pause handler to remove if you need battery savings
Ti.Android.currentActivity.addEventListener('pause', function(e) {
    Ti.API.info("pause event received");
    removeGeolocationListeners('pause');
});
Ti.Android.currentActivity.addEventListener('destroy', function(e) {
    Ti.API.info("destroy event received");
    removeGeolocationListeners('destroy');
});
Ti.Android.currentActivity.addEventListener('resume', function(e) {
    Ti.API.info("resume event received");
    if (!headingAdded) {
        Ti.API.info("adding heading callback on resume");
        Ti.Geolocation.addEventListener('heading', headingCallback);
        headingAdded = true;
    }
    if (!locationAdded) {
        Ti.API.info("adding location callback on resume");
        Ti.Geolocation.addEventListener('location', locationCallback);
        locationAdded = true;
    }
});