How to use geolocation services and track user movements in real-time in an iOS app?

To work with geographical location in apps, the built-in Core Location framework is used. It allows you to obtain precise device coordinates, detect visibility zone changes, and work with geographical regions.

Before starting to collect location data, your app is required to request the corresponding permission from the user. For this, special keys with a description of the request reason are added to the configuration file, and a method requesting temporary or permanent access is called in the code.

After obtaining permissions, an instance of the location manager CLLocationManager is created. It is assigned a level of accuracy, a minimum distance for generating new events, and a delegate that will receive coordinate updates.

To start tracking, the standard location update start method is called. The app delegate will regularly receive arrays of CLLocation objects containing latitude, longitude, altitude above sea level, and current movement speed.

When implementing geo-tracking, it is important to consider the device's power consumption. If the app does not require second-by-second accuracy, it is better to use deferred coordinate updates or switch the manager to significant location changes mode.