[IOS]地图的简单应用

IOSMapKit如何快速入门？下面我来写一个简单的Demo，做简要介绍。

效果图：

操作步骤：

1.首先创建一个项目，在xib的view中添加一个MapVIew控件，并且导入MapKit.framework和CoreLocation.frameword框架。

2.实现ViewController的代码：

ViewController.h:

#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#import <CoreLocation/CoreLocation.h>
@interface DXWViewController : UIViewController<CLLocationManagerDelegate>
@property (retain, nonatomic) IBOutlet MKMapView *mapview;
@property(retain,nonatomic)CLLocationManager *manager;
@property(retain,nonatomic)CLLocation *location;
@property (retain, nonatomic) IBOutletCollection(UILabel) NSArray *labels;
@end

ViewController.m:

#import "DXWViewController.h"
#import "Place.h"
@interface DXWViewController ()

@end

@implementation DXWViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.manager  = [[CLLocationManager alloc] init];
    self.manager.delegate = self;
    //精度
    self.manager.desiredAccuracy = kCLLocationAccuracyBest;
    [self.manager startUpdatingLocation];
	self.mapview.showsUserLocation = YES;
}


-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
    self.location = [locations objectAtIndex:0];
    [self.labels[0] setText:[NSString stringWithFormat:@"%f\u00B0",self.location.coordinate.longitude]];
    [self.labels[1] setText:[NSString stringWithFormat:@"%f\u00B0",self.location.coordinate.longitude]];
    [self.labels[2] setText:[NSString stringWithFormat:@"%gm",self.location.horizontalAccuracy]];
    [self.labels[3] setText:[NSString stringWithFormat:@"%gm",self.location.altitude]];
    [self.labels[4] setText:[NSString stringWithFormat:@"%gm",self.location.verticalAccuracy]];
    
    Place *place = [[Place alloc] init];
    place.coordinate = self.location.coordinate;
    place.title = @"Title";
    place.subtitle = @"subTitle";
    
    [self.mapview addAnnotation:place];
    //设置精度范围
    MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(place.coordinate, 1000, 1000);
    [self.mapview setRegion:region animated:YES];
}
- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
}

- (void)dealloc {
    [_mapview release];
    [_labels release];
    [super dealloc];
}
@end

3.创建大头针的类：

Place.h:

#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
@interface Place : NSObject<MKAnnotation>

@property(copy,nonatomic)NSString *title;
@property(copy,nonatomic)NSString *subtitle;
@property(assign,nonatomic)CLLocationCoordinate2D coordinate;

@end