//定位  需要在info中添加NSLocationWhenInUseUsageDescription

if ([[UIDevice currentDevice].systemVersion doubleValue]>=8.0) {        //获取权限        [self.locationManager requestWhenInUseAuthorization];    }    //开始定位    [self.locationManager startUpdatingLocation];//懒加载-(CLLocationManager *)locationManager{        if (!_locationManager) {                _locationManager=[[CLLocationManager alloc]init];                _locationManager.delegate=self; //    }    return _locationManager;    }

 

 创建地图

self.mapView =[[MKMapView alloc]initWithFrame:[[UIScreen mainScreen]bounds]];    //1.跟踪用户位置(显示用户的具体位置)    self.mapView.userTrackingMode =MKUserTrackingModeFollow;        //2.设置地图类型//    self.mapView.mapType=MKMapTypeStandard;        //设置代理    self.mapView.delegate=self;    //    self.mapView.showsUserLocation=YES;        [self.view addSubview:self.mapView];#pragma mark - NKMapViewDelegate//当用户的位置更新,就会调用(不断地监控用户的位置,调用频率特别高)- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation{  //  MKUserLocation  大头针模型对象    NSLog(@"%f %f",userLocation.location.coordinate.longitude ,userLocation.location.coordinate.latitude);    userLocation.title=@"天苍苍野茫茫风吹草地见牛羊";    userLocation.subtitle=@"床前光,地上霜";        //设置地图的中心点 ( 用户所在的区域)   // [mapView setCenterCoordinate:userLocation.location.coordinate animated:YES];]         //设置地图的显示范围    //设置跨度    MKCoordinateSpan span =MKCoordinateSpanMake(0.5,0.5);        CLLocationCoordinate2D center = userLocation.location.coordinate;    mapView.region=MKCoordinateRegionMake(center, span);}//获取当前跨度-(void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated{            NSLog(@"%f %f",mapView.region.span.latitudeDelta,mapView.region.span.longitudeDelta);}

 

添加大头针 (自己定义 需要创建一个遵守MKAnnotation协议的类)

#import 
     
      #import 
      
       @interface WBAnnotation : NSObject
       
        @property (nonatomic,assign) CLLocationCoordinate2D coordinate;@property (nonatomic, copy)  NSString *title;@property (nonatomic, copy) NSString *subtitle;
       
      
     

 

创建大头针

//创建手势    UITapGestureRecognizer * longpress =[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapMapVIew:)];     //添加手势    [self.mapView addGestureRecognizer:longpress];//响应手势事件- (void)tapMapVIew:(UITapGestureRecognizer * )tap{        //1.获得用户在地图点击的位置(x,y)    CGPoint point =[tap locationInView:tap.view];        //2.将数学坐标转为 地理经纬度坐标     CLLocationCoordinate2D coordinate= [self.mapView convertPoint:point toCoordinateFromView:self.mapView];    //3.创建大头针模型,添加大头针到地图上(自定义的大头针类)    WBAnnotation *anno =[[WBAnnotation alloc]init];    anno.coordinate =coordinate;    anno.title=@"大哥";    anno.subtitle=@"你好棒";        [self.mapView addAnnotation:anno];    }