IOS地图开发

简介

IOS地图帮助我们定位位置，IOS地图使用 MapKit 框架。

实例步骤

1.创建一个简单的 View based application

2.选择项目文件，然后选择目标，然后添加MapKit.framework.

3.添加 Corelocation.framework

4.向 ViewController.xib 添加地图查看和创建 ibOutlet 并且命名为mapView。

5.通过"File-> New -> File... -> "选择 Objective C class创建一个新的文件，单击下一步

6."sub class of"为 NSObject，类作命名为MapAnnotation

7.选择创建

8.更新MapAnnotation.h ，如下所示


#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.更新MapAnnotation.m ，如下所示


#import "MapAnnotation.h"



@implementation MapAnnotation

-(id)initWithTitle:(NSString *)title andCoordinate:

 (CLLocationCoordinate2D)coordinate2d{    

    self.title = title;

    self.coordinate =coordinate2d;

    return self;

}

@end

10.更新ViewController.h ，如下所示


#import <UIKit/UIKit.h>

#import <MapKit/MapKit.h>

#import <CoreLocation/CoreLocation.h>

@interface ViewController : UIViewController<MKMapViewDelegate>

{

    MKMapView *mapView;

}

@end

11.更新ViewController.m ，如下所示


#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.

}



@end

输出

运行应用程序时，输出结果如下

当我们向上滚动地图时，输出结果如下

iOS地图开发 - IOS教程

IOS地图开发

简介

实例步骤

输出