MapKit 添加大头针

#import "ViewController.h"

#import <MapKit/MapKit.h>

#import "MYAnnotation.h"

@interface ViewController ()<MKMapViewDelegate>

@property(nonatomic,strong)CLLocationManager *mag;

@property(nonatomic,strong)CLGeocoder *ceocoder;

@property(nonatomic,strong)MKMapView*mapView;

@end

@implementation ViewController

-(MKMapView*)mapView

{

if (!_mapView) {

_mapView=[[MKMapView alloc]init];

}

return _mapView;

}

- (void)viewDidLoad {

[super viewDidLoad];

self.mag=[[CLLocationManager alloc]init];

[self.mag requestAlwaysAuthorization];

[self.mag requestWhenInUseAuthorization];

//必须要记录要不不会进行用户权限验证

//   CLLocationManager *mags=[[CLLocationManager alloc]init];

//    [mags requestAlwaysAuthorization];

//    [mags requestWhenInUseAuthorization];

self.mapView.frame=self.view.bounds;

//self.mapView.visibleMapRect=MKMapRectMake(20, 20, 200, 200);

[self.view addSubview:self.mapView];

//设置地图的代理

self.mapView.delegate=self;

self.mapView.showsUserLocation=YES;

self.mapView.userTrackingMode=MKUserTrackingModeFollow;

}

//更新用户信息

-(void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation

{

[self.ceocoder reverseGeocodeLocation:userLocation.location completionHandler:^(NSArray *placemarks, NSError *error) {

CLPlacemark *mark=[placemarks firstObject];

userLocation.title=mark.name;

userLocation.subtitle=mark.locality;

}];

//设置地图显示的区域

CLLocationCoordinate2D center=userLocation.location.coordinate;

//指定经纬度跨度

MKCoordinateSpan Span=MKCoordinateSpanMake(15, 15);

//将用户当前位置作为中心

MKCoordinateRegion region=MKCoordinateRegionMake(center, Span);

//设置显示区域

[self.mapView setRegion:region animated:YES];

}

//加载大头针

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

{

if ([annotation isKindOfClass:[MKUserLocation class]]) {

return nil;

}

static NSString*ID=@"anno";

MKPinAnnotationView *annotationView=(MKPinAnnotationView*)[mapView dequeueReusableAnnotationViewWithIdentifier:ID];

if (annotationView==nil) {

annotationView=[[MKPinAnnotationView alloc]initWithAnnotation:annotation reuseIdentifier:ID];

}

//设置大头针的颜色

annotationView.pinColor=MKPinAnnotationColorPurple;

//设置大头针动画

annotationView.animatesDrop=YES;

return annotationView;

}

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

{

CGPoint point=[[touches anyObject] locationInView:self.mapView];

CLLocationCoordinate2D coordinate=[self.mapView convertPoint:point toCoordinateFromView:self.mapView];

//添加大头针

MYAnnotation *anno=[[MYAnnotation alloc]init];

anno.title=@"你想要的";

anno.subtitle=@"可以用CLGeocoder解析出来位置";

anno.coordinate=coordinate;

[self.mapView addAnnotation:anno];

}

@end

#import <Foundation/Foundation.h>

#import <MapKit/MapKit.h>

@interface MYAnnotation : NSObject<MKAnnotation>

@property(nonatomic,assign)CLLocationCoordinate2D coordinate;

@property(nonatomic,copy)NSString*title;

@property(nonatomic,copy)NSString*subtitle;

@end

@implementation MYAnnotation

@end