swift 定位

iOS 8 及以上需要在info.plist文件中添加下面两个属性

　　NSLocationWhenInUseUsageDescription 使用应用期间

　　NSLocationAlwaysUsageDescription 始终

 

 

import UIKit
 
import CoreLocation //系统定位包
 
class ViewController: UIViewController,CLLocationManagerDelegate {
 
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
 
        getCurrentLocation()
    }
 
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
 
    //CodeStart
 
    /// 定位对象
    let locationManager = CLLocationManager()
 
    /// 当前所在城市（默认空）
    var currentCity = ""
 
    /**
    定位获取所在城市
    */
    func getCurrentLocation(){
 
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
 
        locationManager.delegate = self
 
        if(UIDevice.currentDevice().systemVersion>="8.0"){
 
            //locationManager.requestAlwaysAuthorization()
 
            locationManager.requestWhenInUseAuthorization()
 
        }
 
        locationManager.startUpdatingLocation()
    }
 
    /**
    定位失败
    */
    func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!) {
        println(error.code)
    }
 
    /**
    定位完成调用
    */
    func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
 
        let cloc = locations.last as! CLLocation
 
        let geoCoder = CLGeocoder()
 
        var error = NSError()
 
        geoCoder.reverseGeocodeLocation(cloc, completionHandler: { (placeMarks:[AnyObject]!, error:NSError!) -> Void in
            if error == nil {
 
                var placeMark: AnyObject = placeMarks[0]
 
                var locationInfo:Dictionary = placeMark.addressDictionary
 
                var locationCity = locationInfo["State"] as! String
 
                if self.currentCity != locationCity{
 
                    self.currentCity = locationCity
 
                    println("当前定位城市：\(self.currentCity)")
 
                }
 
            }
 
        })
 
        manager.stopUpdatingLocation()
 
    }
 
}