Update Location in Mapview Xcode - ios

Question

In my current project.
I need user's location at every 50 meter user move.
So Basically After open application every 50 meter change I need user location for call web service in Objective c. Also i want same process run when application is in background state.
Thanks in advance

Answer 1

You have to make object of CLLocationManager when application starts and set it's delegate
Add the below code to get user's current location
CLLocationManager *locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager startUpdatingLocation];
Now add the delegate of CLLocationManagaer that is didUpdateToLocation and add the following code in that.
CLLocationDistance meters = [newLocation distanceFromLocation:oldLocation];
if(meters==50)
{
// CALL YOU WEBSERVICE
}

Answer 2

set your location track in
//create location manager object
locationManager = [[CLLocationManager alloc] init];
//there will be a warning from this line of code
[locationManager setDelegate:self];
//and we want it to be as accurate as possible
//regardless of how much time/power it takes
[locationManager setDesiredAccuracy:kCLLocationAccuracyBest];
//set the amount of metres travelled before location update is made
[locationManager setDistanceFilter:50];
and add
if ([CLLocationManager locationServicesEnabled]) {
[self.locationManager startUpdatingLocation];
}
Update
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {
CLLocation *location = locations.lastObject;
NSLog(#"%#", location.description);
//In here you get all details like
NSLog(#"latitude = %#",location.coordinate.latitude);
NSLog(#"longitude = %#",location.coordinate.longitude);
NSLog(#"altitude = %#",location.altitude);
NSLog(#"horizontalAccuracy = %#",location.horizontalAccuracy);
NSLog(#"verticalAccuracy = %#",location.verticalAccuracy);
NSLog(#"timestamp = %#",location.timestamp);
NSLog(#"speed = %#",location.speed);
NSLog(#"course = %#",location.course);
}