IOS map development
IOS map development
Introduction
IOS map helps us locate locations, and IOS map uses the MapKit framework.
Instance steps
1. Create a simple View based application
2. Select the project file, then select the target, and then add MapKit.framework.
3. Add Corelocation.framework
4. Add map view to ViewController.xib and create ibOutlet and name it mapView.
5. Create a new file through "File-> New -> File... -> "Select Objective C class and click Next
6."sub class of" is NSObject, and the class name is MapAnnotation
7. Select Create
8. Update MapAnnotation.h as shown below
#import <Foundation/Foundation.h>#import <MapKit/MapKit.h>@interface MapAnnotation : NSObject<MKAnnotation>@property (nonatomic, strong) NSString *title;@property (nonatomic, readwrite) CLLocationCoordinate2D coordinate;- (id)initWithTitle:(NSString *)title andCoordinate: (CLLocationCoordinate2D)coordinate2d;@end
9. Update MapAnnotation.m , as shown below
#import "MapAnnotation.h"@implementation MapAnnotation-(id)initWithTitle:(NSString *)title andCoordinate: (CLLocationCoordinate2D)coordinate2d{
self.title = title; self.coordinate =coordinate2d; return self;}@end10.Update ViewController.h, as shown below
#import <UIKit/UIKit.h>#import <MapKit/MapKit.h>#import <CoreLocation/CoreLocation.h>@interface ViewController : UIViewController<MKMapViewDelegate>{ MKMapView *mapView;}@end11.Update ViewController.m, as shown below
#import "ViewController.h"#import "MapAnnotation.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad{ [super viewDidLoad];
mapView = [[MKMapView alloc]initWithFrame: CGRectMake(10, 100, 300, 300)];
mapView.delegate = self;
mapView.centerCoordinate = CLLocationCoordinate2DMake(37.32, -122.03);
mapView.mapType = MKMapTypeHybrid; CLLocationCoordinate2D location;
location.latitude = (double) 37.332768;
location.longitude = (double) -122.030039; // Add the annotation to our map view MapAnnotation *newAnnotation = [[MapAnnotation alloc]
initWithTitle:@"Apple Head quaters" andCoordinate:location]; [mapView addAnnotation:newAnnotation]; CLLocationCoordinate2D location2;
location2.latitude = (double) 37.35239;
location2.longitude = (double) -122.025919; MapAnnotation *newAnnotation2 = [[MapAnnotation alloc]
initWithTitle:@"Test annotation" andCoordinate:location2]; [mapView addAnnotation:newAnnotation2]; [self.view addSubview:mapView];}// When a map annotation point is added, zoom to it (1500 range)- (void)mapView:(MKMapView *)mv didAddAnnotationViews:(NSArray *)views{ MKAnnotationView *annotationView = [views objectAtIndex:0];
id <MKAnnotation> mp = [annotationView annotation]; MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance ([mp coordinate], 1500, 1500); [mv setRegion:region animated:YES]; [mv selectAnnotation:mp animated:YES];}- (void)didReceiveMemoryWarning{ [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated.}@endOutput
When running the application, the output is as follows
When we scroll up the map, the output is as follows
