Default location in map-kit in ios - ios

Question

I am new to IOS i need to show default location with my latitude and longitude(12.940358, 80.208647).
with annotation pin.
.h file:
#import <UIKit/UIKit.h>
#import <CoreLocation/CoreLocation.h>
#import <MapKit/MapKit.h>
#interface Map_view : UIViewController<MKMapViewDelegate,CLLocationManagerDelegate>{
CLLocationManager *locationmgr;
CLGeocoder *geocode;
CLPlacemark *placemark;
}
#property(nonatomic,retain)IBOutlet MKMapView *map11;
.m file:
#synthesize map11;
I don't no where to put my latitude and longitude and how to use please help me.

Answer 1

If you want to show your location with your lat & long with Annotation With Name.
Use this code.
- (void)viewDidLoad {
[super viewDidLoad];
mapVW.showsUserLocation = YES;
CLLocation *loc = [[CLLocation alloc]initWithLatitude:12.940358 longitude:80.208647];
[mapVW setCenterCoordinate:loc.coordinate animated:YES];
CLGeocoder *ceo = [[CLGeocoder alloc]init];
[ceo reverseGeocodeLocation:loc
completionHandler:^(NSArray *placemarks, NSError *error) {
CLPlacemark *placemark = [placemarks objectAtIndex:0];
//String to hold address
NSString *locatedAt = [[placemark.addressDictionary valueForKey:#"FormattedAddressLines"] componentsJoinedByString:#", "];
NSString *cityName = placemark.locality;
MKPointAnnotation *annotationPoint = [[MKPointAnnotation alloc] init];
annotationPoint.coordinate = CLLocationCoordinate2DMake(12.940358, 80.208647);
annotationPoint.title = locatedAt;
MKCoordinateRegion region;
MKCoordinateSpan span1;
span1.latitudeDelta = 0.08;
span1.longitudeDelta = 0.08;
region.span = span1;
region.center = annotationPoint.coordinate;
[mapVW setRegion:region animated:TRUE];
[mapVW regionThatFits:region];
[mapVW addAnnotation:annotationPoint];
[mapVW selectAnnotation:annotationPoint animated:NO];
}
];
}

Answer 2

For centering on user location, you can use the following code:
[mapView setCenterCoordinate:mapView.userLocation.location.coordinate animated:YES];
For zooming on special locations, you should study how the regions (MKCoordinateRegion) are counted and work, count your latitude and longitude values for the region and display it using call:
[mapView setRegion:myRegion animated:YES];

Answer 3

Try the following code :
CLLocationCoordinate2D zoomLocation;
zoomLocation.latitude = 39.281516;
zoomLocation.longitude= -76.580806;
// 2
MKCoordinateRegion viewRegion = MKCoordinateRegionMakeWithDistance(zoomLocation, 0.5*METERS_PER_MILE, 0.5*METERS_PER_MILE);
// 3
[_mapView setRegion:viewRegion animated:YES];
This code will set your region in your map.. Then follow the steps to add annotation in your map..
// Add an annotation
MKPointAnnotation *point = [[MKPointAnnotation alloc] init];
point.coordinate = userLocation.coordinate; // Change coordinate as yours
point.title = #"Where am I?";
point.subtitle = #"I'm here!!!";
[self.mapView addAnnotation:point];
Hope it helps..

Answer 4

use this code it will help you:
- (void)location
{
_locationManger =[[CLLocationManager alloc]init];
_locationManger.distanceFilter=kCLDistanceFilterNone;
_locationManger.desiredAccuracy=kCLLocationAccuracyHundredMeters;
[_locationManger startUpdatingLocation];
[map11 setMapType:MKMapTypeStandard];
[map11 setZoomEnabled:YES];
[map11 setScrollEnabled:YES];
MKCoordinateRegion region={ {0.0,0.0 },{0.0,0.0}};
region.center.latitude = 12.940358 ;
region.center.longitude = 80.208647;
region.span.longitudeDelta = 20.20f;
region.span.latitudeDelta = 20.20f;
[map11 setRegion:region animated:YES];
[map11 setDelegate:sender];
}
It will show your desired location as

Answer 5

add this code in your viewdidload
//self.locationManager replace it with your locationmgr
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];
mapView.showsUserLocation = YES;
[mapView setMapType:MKMapTypeStandard];
[mapView setZoomEnabled:YES];
[mapView setScrollEnabled:YES];
in viewdidappear add below code
-(void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:YES];
self.locationManager.distanceFilter = kCLDistanceFilterNone;
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[self.locationManager startUpdatingLocation];
NSLog(#"%#", [self deviceLocation]);
CLLocationCoordinate2D userLocation = CLLocationCoordinate2DMake( self.locationManager.location.coordinate.latitude, self.locationManager.location.coordinate.longitude);
MKPointAnnotation *annotation = [[MKPointAnnotation alloc] init];
[annotation setCoordinate:userLocation];
[annotation setTitle:#"Your Location"];
[self.mapView addAnnotation:annotation];
//always show the name of annotation
[self.mapView selectAnnotation:annotation animated:YES];
//location 1
CLLocationCoordinate2D loc1Coord = CLLocationCoordinate2DMake(18.998250, 72.848734);//add your latitude and longitude here
MKPointAnnotation *annotation1 = [[MKPointAnnotation alloc] init];
[annotation1 setCoordinate:loc1Coord];
[annotation1 setTitle:#"title"];
[annotation1 setSubtitle:#"subtitle"];
[self.mapView addAnnotation:annotation1];
}
add this methods
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
MKAnnotationView *annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"loc"];
annotationView.canShowCallout = YES;
annotationView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
return annotationView;
}
Thats it, you can see your latitude and longitude in the map.Let me know if it is working or not?

Answer 6

first You have to set DELEGATE
and Import following in your .h file
#import <MapKit/MapKit.h>
#import <CoreLocation/CoreLocation.h>
after that make a property
#property(retain, nonatomic) CLLocationManager *locationManager;
and in ViewDidLoad
mapview.delegate = self;
and then You can do like belew
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
{
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(userLocation.coordinate, 800, 800);
[self.mapView setRegion:[self.mapView regionThatFits:region] animated:YES];
// Add an annotation
MKPointAnnotation *point = [[MKPointAnnotation alloc] init];
point.coordinate = userLocation.coordinate;
point.title = #"Where am I?";
point.subtitle = #"I'm here!!!";
[self.mapView addAnnotation:point];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - to get User Current Location.
- (void)getUserLocation{
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
#ifdef __IPHONE_8_0
if([self getDeviceOSVersion].integerValue >= 8) {
// 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];
}
-(NSString *)getDeviceOSVersion{
return [NSString stringWithFormat:#"%#",[UIDevice currentDevice].systemVersion];
}
#pragma mark - CLLocationManagerDelegate
-(void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error{
UIAlertController *errorAlert = [UIAlertController alertControllerWithTitle:#"ERROR" message:#"There was an error retrieving your location"preferredStyle:UIAlertControllerStyleAlert ];
UIAlertAction* ok = [UIAlertAction
actionWithTitle:#"OK"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action)
{
[errorAlert dismissViewControllerAnimated:YES completion:nil];
}];
[errorAlert addAction:ok];
[self presentViewController:errorAlert animated:YES completion:nil];
NSLog(#"Error: %#",error.description);
}
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{
CLLocation *currentLocation = [locations lastObject];
//currentLocation.coordinate.longitude = currentLocation.coordinate.longitude ;
// latitude = currentLocation.coordinate.latitude;
[self.locationManager stopUpdatingLocation];
}