Simple Map Application in iphone

ip17ViewController.h

 

#import <MapKit/MapKit.h>

@property (nonatomic, retain) IBOutlet UISegmentedControl *mapTypeSegment;

@property (nonatomic, retain) IBOutlet MKMapView *myMapView;

- (IBAction)maptypeChange;

ip17ViewController.m

 

#import "MapStruct.h"

@synthesize mapTypeSegment, myMapView;

- (IBAction)maptypeChange

{

    if(mapTypeSegment.selectedSegmentIndex == 0)

        [myMapView setMapType:MKMapTypeStandard];

    else if(mapTypeSegment.selectedSegmentIndex == 1)

        [myMapView setMapType:MKMapTypeSatellite];

    else if(mapTypeSegment.selectedSegmentIndex == 2)

        [myMapView setMapType:MKMapTypeHybrid];

}

- (void)viewDidLoad

{

    [super viewDidLoad];

   

    myMapView.showsUserLocation = YES;

   

    MKCoordinateRegion region;

    region.center.latitude = 40.71435;

    region.center.longitude = -74.00597;

    //region.span.longitudeDelta =  1.5f;

    //region.span.latitudeDelta =  0.5f;

    [myMapView setRegion:region animated:YES];

   

    MapStruct *msObj = [[MapStruct alloc] init];

    msObj.title = @"New York";

    msObj.subtitle = @"The City That Never Sleeps!";

    msObj.coordinate = region.center;

   

    [myMapView addAnnotation:(id)msObj];

   

    //[myMapView selectAnnotation:(id)msObj animated:YES];

   

   

   

    MKCoordinateRegion region2;

    region2.center.latitude = 47.60621;

    region2.center.longitude = -122.33207;

    //region2.span.longitudeDelta =  0.5f;

    //region2.span.latitudeDelta =  0.5f;

   

    [myMapView setRegion:region2 animated:YES];

   

    MapStruct *msObj2 = [[MapStruct alloc] init];

    msObj2.title = @"Seattle";

    msObj2.subtitle = @"Microsoft Headquarter.";

    msObj2.coordinate = region2.center;

   

    [myMapView addAnnotation:(id)msObj2];

   

    //[myMapView selectAnnotation:(id)msObj2 animated:YES];

   

   

   

    MKCoordinateRegion region3;

    region3.center.latitude = 37.32300;

    region3.center.longitude = -122.03218;

    region3.span.longitudeDelta =  50.0f;

    region3.span.latitudeDelta =  50.0f;

   

    [myMapView setRegion:region3 animated:YES];

   

    MapStruct *msObj3 = [[MapStruct alloc] init];

    msObj3.title = @"Cupertino";

    msObj3.subtitle = @"Apple Inc.";

    msObj3.coordinate = region3.center;

   

    [myMapView addAnnotation:(id)msObj3];

   

    [myMapView selectAnnotation:(id)msObj3 animated:YES];

}

MapStruct.h

#import <MapKit/MKAnnotation.h>

@property (nonatomic, assign) CLLocationCoordinate2D coordinate;

@property (nonatomic, copy) NSString *title;

@property (nonatomic, copy) NSString *subtitle;

MapStruct.m

@synthesize coordinate, title, subtitle;