swift_02_获取定位

知识点：

1.定位的获取

2.反向地理编码

 

一、plist权限的配置

源代码编辑条件以下代码

<key>NSLocationWhenInUseUsageDescription</key>
    <true/>
    <key>NSLocationAlwaysAndWhenInUseUsageDescription</key>
    <true/>

 

 

报错：kCLErrorDomain Code=8 解决方法：不要用模拟器

 

import UIKit
import CoreLocation



class ViewController: UIViewController,CLLocationManagerDelegate {
   
    let locationLabel = UILabel()
    let locationStrLabel = UILabel()
    let geocoder = CLGeocoder()
    let locationManager = CLLocationManager()
    
    override func viewDidLoad() {
        super.viewDidLoad()
 
        self.view.backgroundColor = UIColor.gray
        let blurEffect: UIBlurEffect = UIBlurEffect(style: .light)
        let blurView: UIVisualEffectView = UIVisualEffectView(effect: blurEffect)
        blurView.frame = self.view.bounds
        self.view.addSubview(blurView)
        
        locationManager.delegate = self
        
        locationLabel.frame = CGRect(x: 0, y: 50, width: self.view.bounds.width, height: 100)
        locationLabel.textAlignment = .center
        locationLabel.textColor = UIColor.white
        self.view.addSubview(locationLabel)
        
        locationStrLabel.frame = CGRect(x: 0, y: 100, width: self.view.bounds.width, height: 50)
        locationStrLabel.textAlignment = .center
        locationStrLabel.textColor = UIColor.white
        self.view.addSubview(locationStrLabel)
        
        let findMyLocationBtn = UIButton(type: .custom)
        findMyLocationBtn.backgroundColor = UIColor.blue
        findMyLocationBtn.frame = CGRect(x: 50, y: self.view.bounds.height - 80, width: self.view.bounds.width - 100, height: 50)
        findMyLocationBtn.setTitle("Find My Position", for: .normal)
        findMyLocationBtn.setTitleColor(UIColor.white, for: .normal)
        findMyLocationBtn.addTarget(self, action: #selector(findMyLocation), for: .touchUpInside)
        self.view.addSubview(findMyLocationBtn)
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    
    @objc func findMyLocation() {
        locationManager.requestAlwaysAuthorization()
        locationManager.startUpdatingLocation()
    }
    
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        let locations : NSArray = locations as NSArray
        let currentLocation = locations.lastObject as! CLLocation
        let locationStr = "lat:\(currentLocation.coordinate.latitude) lng:\(currentLocation.coordinate.longitude)"
        locationLabel.text = locationStr
        reverseGeocode(location:currentLocation)
        locationManager.stopUpdatingLocation()
    }
    
    ///将经纬度转换为城市名
    func reverseGeocode(location:CLLocation) {
        geocoder.reverseGeocodeLocation(location) { (placeMark, error) in
            if(error == nil) {
                let tempArray = placeMark! as NSArray
                let mark = tempArray.firstObject as! CLPlacemark
                //                now begins the reverse geocode
                let addressDictionary = mark.addressDictionary! as NSDictionary
                let country = addressDictionary.value(forKey: "Country") as! String
                let city = addressDictionary.object(forKey: "City") as! String
                let street = addressDictionary.object(forKey: "Street") as! String
                
                let finalAddress = "\(street),\(city),\(country)"
                self.locationStrLabel.text = finalAddress
                
            }
        }
    }
}