sending current location to server in background as well as in running app using AFNetworking 3

Question

I tried to search lot for this, but i didn't get exact answer what i want.

my question is

Can I send user's current location to server when app is running as well as in background.

For example: In my app i want to store the user's current location in every 2min and then send his current location to server.as well as if user move 50 meters within less than 2min then also. How can i do this ? Can i send location updates to the server in background mode as well as foreground mode? if yes then how?

I tried like following way:

 self.locations = [[NSMutableArray alloc] init];
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.distanceFilter = 10;

self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
self.locationManager.delegate = self;
[self.locationManager requestAlwaysAuthorization];

[self.locationManager startUpdatingLocation];

...

- (void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocation
       fromLocation:(CLLocation *)oldLocation
{



 // Add another annotation to the map.
MKPointAnnotation *annotation = [[MKPointAnnotation alloc] init];
annotation.coordinate = newLocation.coordinate;
[self.map addAnnotation:annotation];

// Also add to our map so we can remove old values later
[self.locations addObject:annotation];

// Remove values if the array is too big
while (self.locations.count > 1)
{
    annotation = [self.locations objectAtIndex:0];
    [self.locations removeObjectAtIndex:0];

    // Also remove from the map
    [self.map removeAnnotation:annotation];
}


if (UIApplication.sharedApplication.applicationState == UIApplicationStateActive)
{
    // determine the region the points span so we can update our map's zoom.
    double maxLat = -91;
    double minLat =  91;
    double maxLon = -181;
    double minLon =  181;

    for (MKPointAnnotation *annotation in self.locations)
    {
        CLLocationCoordinate2D coordinate = annotation.coordinate;

        if (coordinate.latitude > maxLat)
            maxLat = coordinate.latitude;
        if (coordinate.latitude < minLat)
            minLat = coordinate.latitude;

        if (coordinate.longitude > maxLon)
            maxLon = coordinate.longitude;
        if (coordinate.longitude < minLon)
            minLon = coordinate.longitude;
    }

    MKCoordinateRegion region;
    region.span.latitudeDelta  = (maxLat +  90) - (minLat +  90);
    region.span.longitudeDelta = (maxLon + 180) - (minLon + 180);

    _latitude1=[NSString stringWithFormat:@"Latitude:%f",newLocation.coordinate.latitude];
    _longitude1=[NSString stringWithFormat:@"Longitude:%f",newLocation.coordinate.longitude];


    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    appDelegate.fetchtokenString1 = [NSString stringWithString:_latitude1];
    appDelegate.fetchedriveridString1 = [NSString stringWithString:_longitude1];





    NSLog(@"%@",_latitude1);
    NSLog(@"%@",_longitude1);


    // the center point is the average of the max and mins
    region.center.latitude  = minLat + region.span.latitudeDelta / 2;
    region.center.longitude = minLon + region.span.longitudeDelta / 2;

    // Set the region of the map.
    [self.map setRegion:region animated:YES];
}
else
{
    NSLog(@"App is backgrounded. New location is %@", newLocation);
}

Thanks in advance..

Answer 1

Check this when your app is running in foreground.

How can I get current location from user in iOS

Check this to send location when your app is in background.

Sending Latitude and Longitude to Server when app is in background

after getting latitude and longitude, send by using AFNetworking framework.

OR

If you need from scratch if you dont know how to get location then follow the below steps to get latitude and longitude.

Add this below two string types in your info.pList

Then add CoreLocation Framework in your project.

Import it to your ViewController.h

 #import <UIKit/UIKit.h>
 #import <CoreLocation/CoreLocation.h>

 @interface ViewController : UIViewController<CLLocationManagerDelegate> 
 @property(nonatomic, retain) CLLocationManager *locationManager;

 @end

Then do below one in your ViewController.m

 #define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)

 #import "ViewController.h"

 @interface ViewController ()

 @end

 @implementation ViewController

 - (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.

self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
#ifdef __IPHONE_8_0
if(IS_OS_8_OR_LATER) {
    // Use one or the other, not both. Depending on what you put in info.plist
    [self.locationManager requestWhenInUseAuthorization];
    [self.locationManager requestAlwaysAuthorization];
}
#endif
[self.locationManager startUpdatingLocation];


}

-(void)viewWillAppear:(BOOL)animated {

NSLog(@"latitude: %f, longitude: %f",self.locationManager.location.coordinate.latitude,self.locationManager.location.coordinate.longitude);
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

Log will show the latitude and longitude.