Swift - 将定位获取的经纬度转换为城市名

最新推荐文章于 2025-07-10 13:18:26 发布

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最新推荐文章于 2025-07-10 13:18:26 发布

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分类专栏： Swift 文章标签： Swift 定位

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本文介绍如何在iOS应用中集成定位服务，包括导入MapKit框架、配置权限描述、实现CLLocationManagerDelegate协议、获取地理位置信息以及经纬度转城市名等功能。

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1.导入MapKit.framework框架

2.（非iOS8及之后版本跳过此步骤）在项目的info.plist下查看是否有以下两个属性

NSLocationAlwaysUsageDescription

NSLocationWhenInUseUsageDescription

若无就手动添加！

3.在相应类导入相应文件 import CoreLocation 并遵守 CLLocationManagerDelegate 协议

4.开始添加一个全局属性并为它初始化

    //保存获取到的本地位置
    var currLocation : CLLocation!
    //用于定位服务管理类，它能够给我们提供位置信息和高度信息，也可以监控设备进入或离开某个区域，还可以获得设备的运行方向
    let locationManager : CLLocationManager = CLLocationManager()

    func initLocation() {
        locationManager.delegate = self
        locationManager.requestAlwaysAuthorization()
        //设备使用电池供电时最高的精度
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        //精确到1000米,距离过滤器，定义了设备移动后获得位置信息的最小距离
        locationManager.distanceFilter = kCLLocationAccuracyKilometer
        locationManager.startUpdatingLocation()
    }

5.实现相关的协议

    //MARK:- 实现CLLocationManagerDelegate协议
    func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
        currLocation = locations.last as! CLLocation
        println(currLocation.coordinate.longitude)
        println(currLocation.coordinate.latitude)
        LonLatToCity()
    }
    
    func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!) {

<span style="white-space:pre">	</span>//获取失败，可能是关闭了定位服务
        println(error)
    }

6.实现将经纬度转换为城市名的函数

    ///将经纬度转换为城市名
    func LonLatToCity() {
        let geocoder: CLGeocoder = CLGeocoder()
        geocoder.reverseGeocodeLocation(currLocation, completionHandler: { (var placemark: [AnyObject]!, var error: NSError!) -> Void in
            if (error == nil) {//转换成功，解析获取到的各个信息
                let array = placemark as NSArray
                let mark = array.firstObject as! CLPlacemark
                
                var city: String = (mark.addressDictionary as NSDictionary).valueForKey("City") as! String
                let country: NSString = (mark.addressDictionary as NSDictionary).valueForKey("Country") as! NSString
                let CountryCode: NSString = (mark.addressDictionary as NSDictionary).valueForKey("CountryCode") as! NSString
                let FormattedAddressLines: NSString = (mark.addressDictionary as NSDictionary).valueForKey("FormattedAddressLines")?.firstObject as! NSString
                let Name: NSString = (mark.addressDictionary as NSDictionary).valueForKey("Name") as! NSString
                var State: String = (mark.addressDictionary as NSDictionary).valueForKey("State") as! String
                let SubLocality: NSString = (mark.addressDictionary as NSDictionary).valueForKey("SubLocality") as! NSString
                
                //去掉“市”和“省”字眼
                //city = city.stringByReplacingOccurrencesOfString("市", withString: "")
                //State = State.stringByReplacingOccurrencesOfString("省", withString: "")
                
                
                
//                println(city)
    //            println(country)
    //            println(CountryCode)
    //            println(FormattedAddressLines)
    //            println(Name)
//                println(State)
    //            println(SubLocality)
            }else {
                //转换失败
            }
            
        })
    }