how to place location icon on mapkit objective c - ios

Question

I am new in objective c.I have created a project which consist of a mapView
In ViewController.h in ny project,
#import <UIKit/UIKit.h>
#import "MapKit/MapKit.h"
#interface ViewController : UIViewController
#property (weak, nonatomic) IBOutlet MKMapView *mapView;
#end
In ViewController.m file i have viewDidLoad
- (void)viewDidLoad {
[super viewDidLoad];
mapView.showsUserLocation=YES;
// Do any additional setup after loading the view, typically from a nib.
}
I want to give coordinates of more then one location in my code, and I want to show loc.png icon on map corresponding to those coordinates. how can I accomplish this task? And how to zoom the map to maximum scale ?
Form this link you can download my sample project: https://drive.google.com/file/d/0B5pNDpbvZ8SnZGZnU1ZfbjZMRWs/view?usp=sharing

Answer 1

I had working on your question and this are my results, use this code, now Iam using a custom class that implements the MKAnnotation protocol
EDITED
Place.h
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
#interface Place : NSObject<MKAnnotation>
#property (nonatomic) CLLocationCoordinate2D coordinate;
// Title and subtitle for use by selection UI.
#property (nonatomic, nullable) NSString *title;
#property (nonatomic, nullable) NSString *subtitle;
-(id)initWithCoordinates:(CLLocationCoordinate2D) coordinates andName:(NSString*)name;
#end
Place.m
#import "Place.h"
#implementation Place
#synthesize coordinate,title,subtitle;
-(id)initWithCoordinates:(CLLocationCoordinate2D) coordinates andName:(NSString*)name
{
self = [super init];
if(self)
{
[self setTitle:name];
[self setCoordinate:coordinates];
}
return self;
}
#end
Modified Code
#import "ViewController.h"
#import "Place.h"
#interface ViewController () <MKMapViewDelegate>
#property NSMutableArray * arrayOfLocations;
#end
#implementation ViewController
#synthesize mapView;
- (void)viewDidLoad {
[super viewDidLoad];
mapView.showsUserLocation=YES;
self.arrayOfLocations = [NSMutableArray arrayWithObjects:[[Place alloc] initWithCoordinates:CLLocationCoordinate2DMake(40.416691, -3.700345) andName:#"MADRID"],
[[Place alloc] initWithCoordinates:CLLocationCoordinate2DMake(35.416691, -3.700345) andName:#"SOMEWARE IN THE MAP"],
[[Place alloc] initWithCoordinates:CLLocationCoordinate2DMake(35.416691, -40.700345) andName:#"SOMEWARE IN THE MAP1"],
[[Place alloc] initWithCoordinates:CLLocationCoordinate2DMake(20.416691, -50.700345) andName:#"SOMEWARE IN THE MAP2"], nil];
[self.mapView setDelegate:self];
[self.mapView addAnnotations:self.arrayOfLocations];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (nullable MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
MKAnnotationView * annotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:#"testAnnotationView"];
if(annotationView == nil){
annotationView = [[MKAnnotationView alloc]initWithAnnotation:annotation reuseIdentifier:#"testAnnotationView"];
annotationView.image = [UIImage imageNamed:#"loc.png"];
annotationView.canShowCallout = true;
}
return annotationView;
}
#end
Hope this helps you,
This is how it looks