##Location location for iOS ##Steps:

• import"Location.h" in your class.
• Set your instance variable as global variable.(In case that your object being destoryed by the ARC) e.g. @property Location * location;
• Then : [location beginLocate];
• You can modify the default notification name in the class if you have your defined a notification of your own.The default notification name I set in this class is 'updateCurrentCityNotification'.