- (void)geocodeBtnClick

{

    // 0.获取用户输入的位置

    NSString *addressStr = self.addressField.text;

    if (addressStr == nil || addressStr.length == 0) {

        NSLog(@"请输入地址");

        return;

    }

    // 1.创建地理编码对象

   

    // 2.利用地理编码对象编码

    // 根据传入的地址获取该地址对应的经纬度信息

    [self.geocoder geocodeAddressString:addressStr completionHandler:^(NSArray *placemarks, NSError *error) {

       

        if (placemarks.count == 0 || error != nil) {

            return ;

        }

        // placemarks地标数组, 地标数组中存放着地标, 每一个地标包含了该位置的经纬度以及城市/区域/国家代码/邮编等等...

        // 获取数组中的第一个地标

        CLPlacemark *placemark = [placemarks firstObject];

//        for (CLPlacemark  *placemark in placemarks) {

//            NSLog(@"%@ %@ %f %f", placemark.name, placemark.addressDictionary, placemark.location.coordinate.latitude, placemark.location.coordinate.longitude);

        self.latitudeLabel.text = [NSString stringWithFormat:@"%f", placemark.location.coordinate.latitude];

        self.longitudeLabel.text = [NSString stringWithFormat:@"%f", placemark.location.coordinate.longitude];

        NSArray *address = placemark.addressDictionary[@"FormattedAddressLines"];

        NSMutableString *strM = [NSMutableString string];

        for (NSString *str in address) {

            [strM appendString:str];

        }

        self.detailAddressLabel.text = strM;

       

//        }

      

       

       

    }];

}

- (CLGeocoder *)geocoder

{

    if (!_geocoder) {

        _geocoder = [[CLGeocoder alloc] init];

    }

    return _geocoder;

}

 

 

反地理编码

- (void)reverseGeocode

{

    // 1.获取用户输入的经纬度

    NSString *longtitude = self.longtitudeField.text;

    NSString *latitude = self.latitudeField.text;

    if (longtitude.length == 0 ||

        longtitude == nil ||

        latitude.length == 0 ||

        latitude == nil) {

        NSLog(@"请输入经纬度");

        return;

    }

   

    // 2.根据用户输入的经纬度创建CLLocation对象

    CLLocation *location = [[CLLocation alloc] initWithLatitude:[latitude doubleValue]  longitude:[longtitude doubleValue]];

   

    // 3.根据CLLocation对象获取对应的地标信息

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

       

        for (CLPlacemark *placemark in placemarks) {

            NSLog(@"%@ %@ %f %f", placemark.name, placemark.addressDictionary, placemark.location.coordinate.latitude, placemark.location.coordinate.longitude);

            self.reverseDetailAddressLabel.text = placemark.locality;

        }

    }];

}