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These messages can also come in quickly one after the other, or as a trickle.All this depends on the developer, how he wants to handle it.Developing i OS apps that can take advantage of the built-in GPS unit is a great way to add a new dimension to the user experience.You can quickly make your apps location-aware with minimal effort.Find the The first method will be called when Core Location has new location data for us to process.We receive these messages both when we have better accuracy for a current location, or the device has moved.For example: I get GPS coordinates at one location.
This article explains how to use Core Location and Map Kit to display a location and speed on a map.
The mechanism that is used by i OS to detect location information is, however, largely transparent to the application developer and the system will automatically use the most accurate solution available at any given time.
In fact, all that is needed to integrate location based information into an i OS 5 i Phone application is an understanding of how to use the Core Location Framework.
It drains the battery life of the device when it has to communicate with GPS satellites or power up the radio for location triangulation, so we want to turn it back off again as soon as we have a good-enough position. We next set our current class as delegate to receive CLLocation Manager Delegate messages.
Finally, we tell Core Location to start figuring out our position.
The framework uses the available hardware to determine the user’s position and heading.