Swift 根据经纬度获得城市名称

func getcityName(latitude:Double,longitude:Double) -> String {

    let geocoder = CLGeocoder()  // 新增地理编码器

    var cityName = ""

    let loc = CLLocation(latitude: Double(latitude), longitude: Double(longitude))

    geocoder.reverseGeocodeLocation(loc) { (placemarks, error) in

        if error != nil {

            print("Geocoding error: \(error!.localizedDescription)")

        } else if let placemarks = placemarks {

            let placemark = placemarks[0]

            print(placemark.locality!)  // 城市名

            cityName = placemark.locality!

            print(placemark.subLocality!) // 区名

        }

    }

    return cityName

}

//使用方法

let cityname = getcityName(latitude: 112.0, longitude:45.0)

print("cityname")