Swift - 使用CoreLocation实现定位经纬度、海拔、速度、距离等

（1）在 info.plist里加入定位描述（Value值为空也可以）：
NSLocationWhenInUseDescription ：允许在前台获取GPS的描述
NSLocationAlwaysUsageDescription ：允许在后台获取GPS的描述
（2）代码如下：

import UIKit
import CoreLocation

class ViewController: UIViewController,CLLocationManagerDelegate {

    //定位管理器
    let locationManager:CLLocationManager = CLLocationManager()

    @IBOutlet weak var label1: UILabel!
    @IBOutlet weak var label2: UILabel!
    @IBOutlet weak var label3: UILabel!
    @IBOutlet weak var label4: UILabel!
    @IBOutlet weak var label5: UILabel!
    @IBOutlet weak var label6: UILabel!
    @IBOutlet weak var label7: UILabel!

    override func viewDidLoad() {
        super.viewDidLoad()

        //设置定位服务管理器代理
        locationManager.delegate = self
        //设置定位进度
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        //更新距离
        locationManager.distanceFilter = 100
        ////发送授权申请
        locationManager.requestAlwaysAuthorization()
        if (CLLocationManager.locationServicesEnabled())
        {
            //允许使用定位服务的话，开启定位服务更新
            locationManager.startUpdatingLocation()
            print("定位开始")
        }
    }

    //定位改变执行，可以得到新位置、旧位置
    func locationManager(manager: CLLocationManager,didUpdateLocations locations: [CLLocation]) {
        //获取最新的坐标
        let currLocation:CLLocation = locations.last!
        label1.text = "经度：\(currLocation.coordinate.longitude)"
        //获取纬度
        label2.text = "纬度：\(currLocation.coordinate.latitude)"
        //获取海拔
        label3.text = "海拔：\(currLocation.altitude)"
        //获取水平精度
        label4.text = "水平精度：\(currLocation.horizontalAccuracy)"
        //获取垂直精度
        label5.text = "垂直精度：\(currLocation.verticalAccuracy)"
        //获取方向
        label6.text = "方向：\(currLocation.course)"
        //获取速度
        label7.text = "速度：\(currLocation.speed)"
    }
}

转自：http://www.hangge.com/blog/cache/detail_783.html#