@interface MyAnnotationPins : NSObject < MKAnnotation>
@property (nonatomic, readonly) CLLocationCoordinate2D coordinate;
@property (nonatomic, readonly, copy) NSString *title;
@property (nonatomic, readonly, copy) NSString *subtitle;
-(id)initWithCoordinate:(CLLocationCoordinate2D)annotCoordinate title:(NSString*)annotTitle subtitle:(NSString*)annotSubtitle;

@synthesize coordinate;
@synthesize subtitle;
@synthesize title;
-(id)initWithCoordinate:(CLLocationCoordinate2D)annotCoordinate title:(NSString*)annotTitle subtitle:(NSString*)annotSubtitle
{
    self = [super init];
    if (self)
    {
        coordinate = annotCoordinate;
        subtitle = [[NSString alloc] initWithString:annotSubtitle];
        title = [[NSString alloc] initWithString:annotTitle];
    }

    return self;
}

import "MyAnnotationPins.h"


@interface SecondViewController : UIViewController < MKMapViewDelegate >

@property (weak, nonatomic) IBOutlet MKMapView *mapView;
@property (strong, nonatomic) MyAnnotationPins* biblioAnnotation;

- (void)viewDidLoad
{

    [super viewDidLoad];

    mapView.delegate = self;

    MKCoordinateRegion mapRegion;
    mapRegion.center.latitude=-18.924129;
    mapRegion.center.longitude=-48.283963;
    mapRegion.span.latitudeDelta=0.2;
    mapRegion.span.longitudeDelta=0.2;

    [mapView setRegion:mapRegion animated:YES];

    ///// This is just for One annotaion/Pin on Map /////
    CLLocationCoordinate2D parliamentLocation = CLLocationCoordinate2DMake(-18.924129, -48.283963);
    biblioAnnotation = [[MyAnnotationPins alloc]
                            initWithCoordinate:parliamentLocation
                            title:@"Ponto Biblioteca"
                            subtitle:@"Taxi proximo"];
    [mapView addAnnotation:biblioAnnotation];

CLLocationCoordinate2D secondLocation = CLLocationCoordinate2DMake(another latitude, another longitude);
secondAnnotation = [[MyAnnotationPins alloc]
                            initWithCoordinate:secondLocation
                            title:@"Second Title"
                            subtitle:@"Second subtitle"];
[mapView addAnnotation:secondAnnotation];  <code>

@property (strong, nonatomic) MyAnnotationPins* secondAnnotation;

for(X in Y)
{
 CLLocationCoordinate2D parliamentLocation = CLLocationCoordinate2DMake(-18.924129, -48.283963);
MyAnnotationPins* biblioAnnotation = [[MyAnnotationPins alloc]
                        initWithCoordinate:parliamentLocation
                        title:@"Ponto Biblioteca"
                        subtitle:@"Taxi proximo"];
[mapView addAnnotation:biblioAnnotation];
}