ios-地图-自定义大头针

来源：互联网发布：苹果同步助手软件编辑：程序博客网时间：2024/05/17 01:49
#import "ViewController.h"//导入#import <MapKit/MapKit.h>#import "MyAnnotion.h"@interface ViewController ()<MKMapViewDelegate>//地图显示类@property (nonatomic, weak) MKMapView *mapView;@end@implementation ViewController- (MKMapView *)mapView{    if (!_mapView)    {        MKMapView *mapView = [[MKMapView alloc] initWithFrame:self.view.bounds];        [self.view addSubview:mapView];                CLLocationCoordinate2D coordinate2D = {39.9087607478,116.3975780499};        MKCoordinateSpan span = {.01,.01};                MKCoordinateRegion region = MKCoordinateRegionMake(coordinate2D, span);                //设置范围        [mapView setRegion:region];                mapView.delegate = self;                _mapView = mapView;    }        return _mapView;}- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.            //MKPointAnnotation;        //id<MKAnnotation>    //[self.mapView addAnnotation:(id<MKAnnotation>)];        //百度。高德。google        CLLocationCoordinate2D coordinate2D = {39.9087607478,116.3975780499};        //添加标注    MyAnnotion *annotion = [[MyAnnotion alloc] initWithCoordinate2D:coordinate2D title:@"北京市" subtitle:@"天安门"];    [self.mapView addAnnotation:annotion];            CLLocationCoordinate2D coordinate2D2 = {39.9097607478,116.39875780499};    MyAnnotion *annotion2 = [[MyAnnotion alloc] initWithCoordinate2D:coordinate2D2 title:@"北京市" subtitle:@"天安门"];    [self.mapView addAnnotation:annotion2];            //计算两个经纬度之间的距离        //保存地理信息    CLLocation *l1 = [[CLLocation alloc] initWithLatitude:coordinate2D.latitude longitude:coordinate2D.longitude];    CLLocation *l2 = [[CLLocation alloc] initWithLatitude:coordinate2D2.latitude longitude:coordinate2D2.longitude];        //计算两个经纬度之间的距离(单位是米)    CLLocationDistance distance = [l1 distanceFromLocation:l2];    NSLog(@"---%f",distance);    }#pragma mark - MKMapViewDelegate/** *  添加标注的时候会触发(addAnnotation:) * *  @param mapView <#mapView description#> *  @param views   <#views description#> */- (void)mapView:(MKMapView *)mapView didAddAnnotationViews:(NSArray *)views{    NSLog(@"----%@",views);}/** *  返回大头针视图 * *  @param mapView    <#mapView description#> *  @param annotation <#annotation description#> * *  @return <#return value description#> */- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation{    //1.从复用队列里面通过标示符找可用的大头针对象    MKPinAnnotationView *pin = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:@"annotation"];            if (!pin)    {        //2.如果没有找到，就创建        pin = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"annotation"];        //显示气泡(三角视图)        pin.canShowCallout = YES;        /*         MKPinAnnotationColorRed(默认)         MKPinAnnotationColorGreen,         MKPinAnnotationColorPurple         */        //修改大头针颜色        pin.pinColor = MKPinAnnotationColorPurple;    }        return pin;    }- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end
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