地图的显示以及如何添加大头针

来源：互联网发布：远程教育软件k6 编辑：程序博客网时间：2024/06/15 02:43

地图的显示

1.导入系统的包#import <MapKit/MapKit.h>

2.定义地图MKMapView *_mapView;

3.创建地图视图对象_mapView = [[MKMapView alloc]initWithFrame:CGRectMake(0, 20, 375, 670 - 20)];

4.设置类型 _mapView.mapType = MKMapTypeStandard;

5.设置代理_mapView.delegate = self;MKMapViewDelegate

6.设置中心点和范围CLLocationCoordinate2D center = CLLocationCoordinate2DMake(39.9023, 116.3902);

7.放大比例MKCoordinateSpan span = MKCoordinateSpanMake(0.01, 0.01);

8.地图显示区域MKCoordinateRegion region = MKCoordinateRegionMake(center, span);

[_mapView setRegion:region animated:YES];

9.设置地图定位位置_mapView.showsUserLocation = YES;

10.加载到视图上[self.view addSubview:_mapView];

以及定位如上篇

添加大头针效果

11.添加一个长按手势添加大头针

UILongPressGestureRecognizer *g = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressAction:)];

12.将手势加到地图上

[_mapView addGestureRecognizer:g];

13.触法方法

- (void)longPressAction:(UIGestureRecognizer *)g

{

获取坐标

CGPoint point = [g locationInView:_mapView];

坐标转换成经纬度

CLLocationCoordinate2D coor = [_mapView convertPoint:point toCoordinateFromView:_mapView];

添加大头针

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

设置标题

anno.title = @"LH";

anno.subtitle = @"PP";

设置经纬度

anno.coordinate = coor;

添加到地图上

[_mapView addAnnotation:anno];

}

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