带有当前位置坐标的地图

在.h中加入属性
//创建属性
@property(nonatomic,strong)NSString *provie;

导入头文件

//导入系统类
#import <MapKit/MapKit.h>
//导入获取经纬度类
#import <CoreLocation/CoreLocation.h>
//设置协议

@interface MapUIkit ()

<MKMapViewDelegate,CLLocationManagerDelegate>

//创建地图对象
@property(nonatomic,strong)MKMapView *MapView;
@property(nonatomic,strong)CLLocationManager *lomanger;

@end

@implementation MapUIkit

• (void)viewDidLoad {

  [super viewDidLoad];
  //设置导航标题
  self.navigationItem.title =self.provie;
  //设置右侧按钮
  //self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@“省会定位” style:UIBarButtonItemStyleDone target:self action:@selector(YOU:)];
  //实例化
  self.MapView = [[MKMapView alloc] initWithFrame:self.view.frame];
  //设置代理
  self.MapView.delegate = self;
  //设置地图样式
  self.MapView.mapType = MKMapTypeStandard;
  //加载视图
  [self.view addSubview:self.MapView];
  //设置按钮
  UIButton *butt = [UIButton buttonWithType:UIButtonTypeCustom];
  //设置
  butt.frame = CGRectMake(40, 600,50, 50);
  //添加文字
  [butt setTitle:@“当前位置” forState:UIControlStateNormal];
  butt.titleLabel.font = [UIFont systemFontOfSize:10];
  //添加点击事件
  [butt addTarget:self action:@selector(dian:) forControlEvents:UIControlEventTouchUpInside];
  butt.layer.masksToBounds = YES;
  butt.layer.cornerRadius = 25;
  butt.backgroundColor = [UIColor greenColor];
  //添加视图
  [self.view addSubview:butt];
  //实例化经纬度类
  self.lomanger = [[CLLocationManager alloc] init];
  //申请用户授权用户进入后台不在授权
  [self.lomanger requestWhenInUseAuthorization];
  }

• (void)YOU:(id)seb{
  //
  CLGeocoder *g = [[CLGeocoder alloc] init];
  //将地址字符串转换为位置的经纬度
  [g geocodeAddressString:self.provie completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
  //获取位置随便展示在地图上
  CLPlacemark *place = [placemarks lastObject];
  //获取位置
  CLLocation *loc =place.location;
  CLLocationCoordinate2D coor = loc.coordinate;
  //定位
  MKPointAnnotation *anne = [[MKPointAnnotation alloc] init];
  //设置挫钉
  anne.coordinate = coor;
  //回到主线程
  dispatch_async(dispatch_get_main_queue(), ^{
  //设置让地图显示区域缩小
  MKCoordinateRegion rgin =MKCoordinateRegionMakeWithDistance(coor, 10, 10);
  //添加到视图
  [self.MapView setRegion:rgin];
  [self.MapView addAnnotation:anne];
  });
  }];
  }
  //实现点击方法

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• (void)dian:(id)sender{
  //设置代理
  self.lomanger.delegate = self;
  //开始获取位置信息 调用此方法后协议中的方法才会执行

  [self.lomanger startUpdatingLocation];
  }
  //实现代理方法

• (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations{
  //创建对象获取当前获取最后一个元素
  CLLocation *curloc = [locations lastObject];
  //创建结构体 获取经纬度
  CLLocationCoordinate2D curCoor = curloc.coordinate;
  self.lomanger.delegate = nil;
  //输出经纬度
  NSLog(@“经度%g,纬度%g”,curCoor.longitude,curCoor.latitude);

  //设置让地图显示区域缩小
  MKCoordinateRegion rgin =MKCoordinateRegionMakeWithDistance(curCoor, 30, 30);
  //设置动画并添加
  [self.MapView setRegion:rgin animated:YES];
  //将地址经纬度转换为字符串
  CLGeocoder *Geder = [[CLGeocoder alloc] init];
  //设置方法
  [Geder reverseGeocodeLocation:curloc completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
  //创建异步队列回到主线程
  dispatch_async(dispatch_get_main_queue(), ^{
  //获取最后一个经纬度转换为字符串
  CLPlacemark *place = [placemarks firstObject];
  //设置大头针
  MKPointAnnotation *pino = [[MKPointAnnotation alloc] init];
  //将获取的地址名字给大头针
  pino.title = place.name;
  //设置大头针的位置
  pino.coordinate = curCoor;
  //添加到地图上
  [self.MapView addAnnotation:pino];
  });
  }];
  }
  //实现大头针点击事件

• (nullable MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id )annotation{
  //从MAPView找一块可用的内存
  MKPinAnnotationView *kl =[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@“1”];
  //设置动画
  kl.animatesDrop = YES;
  //设置
  kl.canShowCallout = YES;
  //返回内容
  return kl;

}
@end