LocationManager

CLLocation based events and reverse geocoding

// getting event at particular minimum interval, which is set in LocationManager.swift class `minimumTriggerDuration`
LocationManager.sharedInstance.listeningEvent { (location: Location?, error: LocationError?, event:EventType?) -> (Void) in
    logger("\(location?.json) : \(error) : \(event?.string)")
}
        
LocationManager.sharedInstance.getLocation(.userTrigger)

• Setting interval to get trigger

# In LocationManager.swift

let minimumTriggerDuration:Double = 5*60 // in seconds : 5 minutes

• Storing of Locations and Logs in DB

For safety usage, I have used encrypted Sqlite https://github.com/ankitthakur/encrypted-core-data/

So for background trigger, if we will not be able to view the logs on console, then also don't worry, just open the DB and read the debug logs. For opening db, I have currently set password as sample. If you want to change the password for usage, then you can change it in EncryptedDB.swift

Pre-requisites

1. In AppDelegate.m, we need to add below code:

private func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: Any]?) -> Bool {
      // Override point for customization after application launch.
      
      /**
       The system guarantees that it will not wake up your application for a background fetch more
       frequently than the interval provided. Set to UIApplicationBackgroundFetchIntervalMinimum to be
       woken as frequently as the system desires
       */
      application.setMinimumBackgroundFetchInterval(UIApplicationBackgroundFetchIntervalMinimum)
      
      logger(launchOptions);
      
      let options:[UIApplicationLaunchOptionsKey: Any]? = launchOptions as? [UIApplicationLaunchOptionsKey: Any]
      
      /*
       UIApplicationLaunchOptionsKey.location:
       this key indicates that the app was launched in response to an incoming location event. The value of this key is an NSNumber object containing a Boolean value. We use the presence of this key as a signal to create a CLLocationManager object and start location services again. Location data is delivered only to the location manager delegate and not using this key.
       */
      if options?[UIApplicationLaunchOptionsKey.location] != nil {
          LocationManager.sharedInstance.getLocation(.backgroundSignificant)
      }
      
      return true
  }
  
/// Implement this method if your app supports the fetch background mode. When an opportunity arises to download data, the system calls this method to give your app a chance to download any data it needs.
  private func application(_ application: UIApplication, performFetchWithCompletionHandler completionHandler: (UIBackgroundFetchResult) -> Void) {
      
      LocationManager.sharedInstance.getLocation(.backgroundRefresh)
      
  }