#import<MapKit/MapKit.h>
#import<CoreLocation/CoreLocation.h>
{
//定义变量地图视图、定位管理对象、地图解析对象
MKMapView *mv;
CLLocationManager *manager;
CLGeocoder *geo;
}
{ [super viewDidLoad];
//初始化地图视图
mv = [[MKMapView alloc]initWithFrame:self.view.bounds]; mv.mapType = MKMapTypeStandard;
mv.zoomEnabled = YES;
mv.rotateEnabled = YES;
mv.scrollEnabled = YES;
mv.showsUserLocation = YES;
[self.view addSubview:mv];
//定位
CLLocationCoordinate2D center = {34,101};
MKCoordinateSpan span = {0.01,0.01};
MKCoordinateRegion region = {center,span};
[mv setRegion:region animated:YES];
//初始化定位管理器
manager = [[CLLocationManager alloc]init];
[manager requestWhenInUseAuthorization];
manager.delegate = self;
manager.desiredAccuracy = kCLLocationAccuracyBest; manager.distanceFilter = kCLDistanceFilterNone;
[manager startUpdatingLocation];
//初始化地址解析对象
geo = [[CLGeocoder alloc]init];}
//定位更新响应方法
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray*)locations
{
//获取当前位置
CLLocation *loc = [locations lastObject];
//定位
CLLocationCoordinate2D center =
{
loc.coordinate.latitude,loc.coordinate.longitude}; MKCoordinateSpan span = {0.01,0.01};
MKCoordinateRegion region = {center,span};
[mv setRegion:region animated:YES];
NSMutableString *mSt = [NSMutableString string];
//反向解析经纬度获取地址
[geo reverseGeocodeLocation:loc completionHandler:^(NSArray* _Nullable placemarks, NSError * _Nullable error) { CLPlacemark *pla = [placemarks firstObject];
NSArray *arr = [pla.addressDictionary objectForKey:@"FormattedAddressLines"];
//拼接地址
for (NSString *str in arr) {
[mSt appendString:str];
}
//添加锚点
MKPointAnnotation *anno = [[MKPointAnnotation alloc]init]; anno.coordinate = center;
anno.title = @"我的位置";
anno.subtitle = mSt;
[mv addAnnotation:anno];
}];
}
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
{
CLLocationCoordinate2D loc = [userLocation coordinate];
//放大地图到自身的经纬度位置。
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(loc, 250, 250);
[mv setRegion:region animated:YES];
}
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id)annotation
{
static NSString *cellid = @"cellid";
MKAnnotationView *anno = [mapView dequeueReusableAnnotationViewWithIdentifier:cellid];
if (!anno) {
anno = [[MKAnnotationView alloc]initWithAnnotation:annotation reuseIdentifier:cellid];
}
anno.canShowCallout = YES;
return anno;
}
