最近項(xiàng)目要用到定位的功能，研究了一番百度地圖，需要接入很多第三方庫(kù)，還需要生成密鑰等等，個(gè)人覺(jué)得比較麻煩，雖然百度地圖的功能已經(jīng)相當(dāng)完善了，最后決定用系統(tǒng)地圖定位，系統(tǒng)自帶用的是高德地圖，AIP很清晰，下面是代碼實(shí)現(xiàn)。
首先import CoreLocation, 創(chuàng)建 OTTLocationManager類，繼承NSObject

// 創(chuàng)建CLLocationManager 對(duì)象
let manager = CLLocationManager()
// 保存當(dāng)前定位：
var currentLocation: CLLocation?
// 檢測(cè)是否獲取到定位
// 反地理編碼，保存城市，地區(qū)
var subLocality: String?
var locality: String?

創(chuàng)建單例，方便ViewController使用：

//singleton manager
class var defaultManager: OTTLocationManager {
struct Static {
static let locManager = OTTLocationManager()
}
return Static.locManager
}
開(kāi)啟定位服務(wù)的初始設(shè)定：

func getLatLon() {
   
    if (CLLocationManager.locationServicesEnabled()) {
        
        //使用應(yīng)用程序期間允許訪問(wèn)位置數(shù)據(jù)
        self.manager.requestWhenInUseAuthorization()
        self.manager.delegate = self
        self.manager.desiredAccuracy = kCLLocationAccuracyBest
        self.manager.distanceFilter = kCLLocationAccuracyHundredMeters
        self.manager.startUpdatingLocation()
    } else {
        CLLocationManager.authorizationStatus()
        print("[OTTLocationManager getLatLon] 定位服務(wù)未開(kāi)啟")
    }

}

實(shí)現(xiàn)代理方法，獲取定位經(jīng)緯度及反地理編碼：
extension OTTLocationManager: CLLocationManagerDelegate {

func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
    
    self.isLocation = true
    //取得locations數(shù)組的最后一個(gè)：因定位一直在移動(dòng)，所以取數(shù)組最后一個(gè)準(zhǔn)確經(jīng)緯度
    let location: CLLocation = locations[locations.count - 1]
    if location.horizontalAccuracy > 0 {
        let lat = Float(location.coordinate.latitude)
        let lon = Float(location.coordinate.longitude)
        
        self.currentLocation = location
        print("[OTTLocationManager locationManager:didUpdateLocations] lat = \(lat),  lon = \(lon)")
        
        //反地理編碼：將經(jīng)緯度轉(zhuǎn)換成城市，地區(qū)，街道
        CLGeocoder().reverseGeocodeLocation(location) { (placemakes: [CLPlacemark]?, error: NSError?) -> Void in
            guard let placemark = placemakes?.first else {
                return
            }
            
           // 城市
            self.locality = placemark.locality
           // 地區(qū)
            self.subLocality = placemark.subLocality
            print("[OTTLocationManager locationManager:didUpdateLocations] locality = \(placemark.locality), sublocality = \(placemark.subLocality), subthoroughfare = \(placemark.subThoroughfare), self.subLocality = \(self.subLocality)")  //詳細(xì)街道
        }
    }
    // 停止定位服務(wù)
    self.manager.stopUpdatingLocation()
}

//MARK:定位錯(cuò)誤信息
func locationManager(manager: CLLocationManager, didFinishDeferredUpdatesWithError error: NSError?) {
    
    print("[OTTLocationManager locationManager:didFinishDeferredUpdatesWithError] \(error)\(error?.description)")
}

//檢測(cè)是否獲取到定位
func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {
    //如果未開(kāi)啟定位服務(wù)或者獲取不到定位，會(huì)走此代理方法
    self.manager.stopUpdatingLocation()
    self.isLocation = false
    print("[OTTLocationManager locationManager:didFailWithError] 無(wú)法獲取到定位")
}

}

啊哈，這樣就實(shí)現(xiàn)了簡(jiǎn)單的定位功能.
模擬器運(yùn)行，要在Debug->Location->CustomLocation 設(shè)置經(jīng)緯度，模擬移動(dòng)端定位，否則不會(huì)執(zhí)行代理方法。
如果要實(shí)現(xiàn)地圖定位功能，需要import MapKit,實(shí)現(xiàn) MKMapViewDelegate代理方法，后續(xù)介紹，敬請(qǐng)期待。