IOS開發之－－－地圖顯示

（1）首先拉一個mapView到你的工程

（2）在你的Controller.h中加入：

@interface EXViewController : UIViewController<MKMapViewDelegate,CLLocationManagerDelegate>{@private     MKMapView *_mapView;    CLLocationManager *_loactionManager;}@property(nonatomic, readwrite,retain) IBOutlet MKMapView *mapView;@property(nonatomic, readwrite, retain)CLLocationManager *locationManager;@end

記得

IBOutlet

一定要加的，而且要串連你的xib中的mapview到這個屬性定義，不然會有麻煩的呵呵。
那麼Controller.m中的實現的代碼：

在viewDidLoad函數中

- (void)viewDidLoad{    [super viewDidLoad];// Do any additional setup after loading the view, typically from a nib.    self.mapView.delegate = self;    self.mapView.showsUserLocation = YES;    self.locationManager = [[[CLLocationManager alloc] init] autorelease];        [self.locationManager startUpdatingHeading];    [self.locationManager startUpdatingLocation];        //    }

並且實現函數：

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation

這個函數用來實現你的地圖顯示，並且可以通過中的那個定位器號來定位自己的位置

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation{    MKPinAnnotationView *annView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:@"snda.pin"];    if (annView == NULL) {        annView = [[[MKPinAnnotationView alloc]initWithAnnotation:annotation reuseIdentifier:@"snda.pin"] autorelease];            }        annView.annotation = annotation;    annView.canShowCallout = YES;    annView.calloutOffset = CGPointMake(0, 0);    annView.image = [UIImage imageNamed:@"capture-exposure-plus.png"];    annView.rightCalloutAccessoryView   = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];        return annView;}

和函數

- (void)locationManager:(CLLocationManager *)managerdidUpdateToLocation:(CLLocation *)newLocation           fromLocation:(CLLocation *)oldLocation{    ／／不斷擷取你的精度和新的地址}