How to obtain, save and calculate distance between coordinates with CoreLocation [duplicate]

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Possible Duplicate:

GPS coordinates in degrees to calculate distances

Hi friends I am new iPhone developer.

I am working with the iOS GPS to find the distance between my current location and a previous location.

开发者_开发问答

First of all I don't know how to find my current location. Please tell me.

I have a method that is called to find my current location and previous location. I can only get the current location from CoreLocation - how can I get hold of my previous location.

I am fully confused please help me.

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Check out this basic tutorial on using CoreLocation iOS Core Location GPS Tutorial . It explains in simple terms how to obtain a location, save it and do simple calculations with other locations.

To calculate the distance between to coordinates use the distanceFromLocation: method.