You can also use a location manager object to retrieve the most recent location data. After that, the receiver generates update events whenever there is new estimate.Calling this method several times in succession does not automatically result in new events being generated.Baby devs are going to be even more frustrated by this change.
I discuss the singleton pattern in a previous article.Attempting to share location services across various controllres can lead to much duplicate code.If you're simply interested in receiving updates about the user's current location, building a central location for retrieving this information can be quite useful.Some of the built in Apple apps such as Mail, Contacts and the Calendar have always done this.
When a new email arrives, you open the app and the email is there.
When notifications of a new email arrive, you open the app and then need to wait for syncronisation to happen.