How can I drop a multiple pins using different latitude and longitude values in iphone?

Question

How can I drop multiple pins using different latitude and longitude values in iphone?

I have the 10 latitude and longitude values. So, by using those values I need to drop the 10 pins in map (depends on the latitude values count).

Answer 1

create class for put place mark

#import <MapKit/MapKit.h>

@interface DDAnnotation : MKPlacemark 

// Re-declare MKAnnotation's readonly property 'coordinate' to readwrite. 
@property (nonatomic, readwrite, assign) CLLocationCoordinate2D coordinate;

@property (nonatomic, strong) NSString *title;
@property (nonatomic, strong) NSString *subtitle;

@end

/////// implimentation

#import "DDAnnotation.h"

@implementation DDAnnotation

- (id)initWithCoordinate:(CLLocationCoordinate2D)coordinate addressDictionary:(NSDictionary *)addressDictionary
{
    if ((self = [super initWithCoordinate:coordinate addressDictionary:addressDictionary]))
    {
        self.coordinate = coordinate;
    }
    return self;
}
@end

Put all place information (with lat and longi) in self.listOfPlaces

- (void)showAllPlaces
{

    for(int i=0; i<self.listOfPlaces.count; i++)
    {
        NSMutableDictionary *cPlace = [self.listOfPlaces objectAtIndex:i];
        CLLocationCoordinate2D pCoordinate ;
        pCoordinate.latitude = [[cPlace objectForKey:@"latitude"] doubleValue];
        pCoordinate.longitude = [[cPlace objectForKey:@"longitude"] doubleValue];

        DDAnnotation *annotation = [[DDAnnotation alloc] initWithCoordinate:pCoordinate addressDictionary:nil] ;

        annotation.title = [cPlace objectForKey:@"placeName"];
        annotation.subtitle = [cPlace objectForKey:@"placeDescription"];
        annotation.image = [cPlace objectForKey:@"markerImage"];
        annotation.placeID = [cPlace objectForKey:@"placeID"];

        [self.mapView addAnnotation:annotation];
    }
    }