IOS地图开发及定位

定位服务编程

(一)、地理信息反编码（需要框架CoreLocation，主要使用类 CLLocationManagerDelegate／CLLocationManager／CLLocation／CLPlacemark）其中 CLPlacemark 地标类属性有国家信息，指定城市信息，街道级别信息等

//给定坐标定位地名 CLGeocoder reverseGeocodeLocation：方法

// ViewController.swift

// ServiceAndMap

//

// Created by sus001 on 16/6/7.

// Copyright © 2016年 njsus. All rights reserved.

//

import UIKit

import CoreLocation

import Contacts

import ContactsUI

class ViewController: UIViewController,CLLocationManagerDelegate,UIAlertViewDelegate {

@IBOutlet weak var textView: UITextView!

@IBOutlet weak var txtLng: UITextField!// 经度

@IBOutlet weak var txtLat: UITextField!//纬度

@IBOutlet weak var txtAlt: UITextField!//高度

var locationManager: CLLocationManager!

var _location: CLLocation!

override func viewDidLoad() {

super.viewDidLoad()

if CLLocationManager.locationServicesEnabled(){

locationManager = CLLocationManager()

locationManager.delegate = self //设置委托

locationManager.desiredAccuracy = kCLLocationAccuracyBest //所需精度

locationManager.distanceFilter = 1000 //距离过滤器

}

//在iOS 8.0下要授权

if NSString(string: UIDevice.currentDevice().systemVersion).floatValue >= 8.0 {

// NSLocationWhenInUseUsageDescription ＝ yes info.plist文件中输入

self.locationManager.requestWhenInUseAuthorization() //调用了这句,就会弹出允许框了

// NSLocationAlwaysUsageDescription ＝ yes

self.locationManager.requestAlwaysAuthorization()// 前后台同时定位

}

// Do any additional setup after loading the view, typically from a nib.

}

// 地理信息反编码

@IBAction func clickButton(sender: UIButton) {

let geocoder = CLGeocoder() //实例化 CLGeocoder地理反编码对象

// 调用地理反编码对象的reverseGeocodeLocation

geocoder.reverseGeocodeLocation(_location!) { (placemarks:[CLPlacemark]?, error:NSError?) in

if placemarks?.count > 0 {

// 地标类 里面包含了国际信息，指定城市信息等

let placemark = placemarks![0]

let dd = placemark.addressDictionary

print(dd!["State"]!)

print(dd!["Country"]!)

var address = placemark.thoroughfare

address = address == nil ? "" : address

var state = placemark.country

state = state == nil ? "" : state

var city = placemark.locality

city = city == nil ? "" : city

self.textView.text = NSString(format: "\(state!) \n\(address!) \n\(city!)", locale: nil) as String

}

if error != nil {

print(error?.localizedDescription)

}

}

}

override func viewWillAppear(animated: Bool) {

super.viewWillAppear(animated)

if CLLocationManager.locationServicesEnabled() && CLAuthorizationStatus.Denied == CLLocationManager.authorizationStatus(){

print("定位服务没有打开")

let status = CLLocationManager.authorizationStatus()

print(status)

if status == CLAuthorizationStatus.Denied || status == CLAuthorizationStatus.Restricted || status == CLAuthorizationStatus.NotDetermined {

let alert = UIAlertController(title: "提示", message: "ServiceAndMap\n 要适应您当前的位置？", preferredStyle: UIAlertControllerStyle.Alert)

let cancel = UIAlertAction(title: "取消", style: .Cancel, handler: { (alertAction:UIAlertAction) in

print("cancel")

})

let ok = UIAlertAction(title: "OK", style: .Default, handler: { (alertAction:UIAlertAction) in

print("ok")

})

alert.addAction(cancel)

alert.addAction(ok)

presentViewController(alert, animated: true, completion: nil)

}

}else{

print("定位服务打开")

locationManager.startUpdatingLocation() //开启定位服务

}

//定位服务进入后台后，下面这个方法可以延迟更新位置信息

// locationManager.allowDeferredLocationUpdatesUntilTraveled(<#T##distance: CLLocationDistance##CLLocationDistance#>, timeout: <#T##NSTimeInterval#>)

}

// 通过didChangeAuthorizationStatus代理方法，可以监听用户授权的改动

func locationManager(manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus) {

if status == .NotDetermined || status == .Denied{

//允许使用定位服务

//开始启动定位更新服务

locationManager.startUpdatingLocation()

print("开始定位")

}

}

override func viewWillDisappear(animated: Bool) {

super.viewWillDisappear(animated)

locationManager.stopUpdatingHeading() //关闭定位服务

//locationManager.disallowDeferredLocationUpdates() //关闭延迟更新

locationManager.pausesLocationUpdatesAutomatically = true //自动暂停为主更新

}

func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {

let currLocation = locations.last

txtLat.text = NSString(format:"\(currLocation!.coordinate.latitude)") as String

txtLng.text = NSString(format: "\(currLocation!.coordinate.longitude)") as String

txtAlt.text = NSString(format: "\(currLocation!.altitude)") as String

self._location = currLocation

}

// func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {

// NSLog("error:\(error.localizedDescription)", nil)

// }

override func didReceiveMemoryWarning() {

super.didReceiveMemoryWarning()

// Dispose of any resources that can be recreated.

}

}

（二）、地理信息编码 （CoreLocation框架CLLocationManagerDelegate／CLLocationManager／CLLocation／CLGeocoder／CLPacemark）

//给点地名，定位坐标 CLGeocoder geocodeAddressString方法

// SelWhereViewController.swift

// ServiceAndMap

//

// Created by sus001 on 16/6/10.

// Copyright © 2016年 njsus. All rights reserved.

//

import UIKit

import CoreLocation

class SelWhereViewController: UIViewController,CLLocationManagerDelegate{

var locationManager:CLLocationManager!

@IBOutlet weak var selText: UITextField!

@IBOutlet weak var textView: UITextView!

@IBAction func selClick(sender: AnyObject) {

//查询地点为空时不执行

if selText.text == nil || NSString(string: selText.text!).length == 0 {

return

}

// 地理信息编码查询，查询的返回结果marks参数是NSArray类型集合

CLGeocoder().geocodeAddressString(self.selText.text!) { (marks:[CLPlacemark]?, error:NSError?) in

print("查询纪录数：\(marks)")

if marks?.count > 0 {

// 取出第一个参数 ，其中CLPlacemark封装了街道，区域等信息

let placemark = marks![0]

// 获得地标的经纬度信息

let coordinate = placemark.location?.coordinate

let strCoordinater = NSString(format: "经度:\(coordinate!.longitude)\n纬度:\(coordinate!.latitude)")

self.textView.text = NSString(format: "\(strCoordinater) \n \(placemark.country!) \n\(placemark.locality!) \n \((placemark.thoroughfare == nil ? "" : placemark.thoroughfare)!)", locale: nil) as String

// 关闭键盘，如果想输入中文字 先在模拟器中找到设置，

// 即Settings->General->Keyboard->Keyboards->Add New Keyboard...

// 到了这里大家应该就都明白了，在列表中选择自己需要的输入法，

// 我选择的中文输入法是Chinese-Simplified(PinYin)即简体拼音其它没有试过

self.selText.resignFirstResponder()

}

}

}

override func viewDidLoad() {

super.viewDidLoad()

// Do any additional setup after loading the view.

}

override func didReceiveMemoryWarning() {

super.didReceiveMemoryWarning()

// Dispose of any resources that can be recreated.

}

/*

// MARK: - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

// Get the new view controller using segue.destinationViewController.

// Pass the selected object to the new view controller.

}

*/

}

（三）、定位服务测试

Scheme ——> Eidt Scheme ——> Options ——> Defual location

如果地名没有添加gpx文件

工具 www.mygeoposition.com生成gpx文件

（四）、使用苹果地图（MapKit框架，mapview控件）

添加标柱：（第一步：触发添加动作，第二步：实现地图委托方法）

//

// IOSMapViewController.swift

// ServiceAndMap

//

// Created by sus001 on 16/6/10.

// Copyright © 2016年 njsus. All rights reserved.

//

import UIKit

import MapKit

class IOSMapViewController: UIViewController,MKMapViewDelegate{

@IBOutlet weak var mapView: MKMapView!

@IBOutlet weak var selText: UITextField!

// 添加标柱：（第一步：触发添加动作，第二步：实现地图委托方法）

@IBAction func selClic(sender: AnyObject) {

if self.selText.text == nil || NSString(string: self.selText.text!).length == 0 {

return

}

let gecoder = CLGeocoder()

gecoder.geocodeAddressString(self.selText.text!) { (placemarks:[CLPlacemark]?, error:NSError?) in

NSLog("查询记录：\(placemarks!.count)")

if placemarks?.count > 0 {

self.mapView.removeAnnotations(self.mapView.annotations)

}

var i = 0

repeat{

self.selText.resignFirstResponder() //关闭键盘

let placemark = placemarks![i]

// 调整地图位置和缩放比例

// 第一个参数：指定区域的中心点，第二个参数 是南北跨度，第三个参数是东西跨度，这个两个参数会影响地图缩放

let viewRegion = MKCoordinateRegionMakeWithDistance((placemark.location!.coordinate), 100000, 100000)

// 重新设置地图的显示区域

self.mapView.setRegion(viewRegion, animated: true)

// 实例化 MKAnnotation子类对象，这个是自定义的类为地图上标注

// 地图上的标注点是MKPinAnnotationView（大头针标注视图）类型，这个视图要求标注点信息由实现MKAnnotation协议的类提供

let annotation = MapLocation(coordinate: (placemark.location?.coordinate)!)

annotation.name = placemark.name

// annotation.streetAdress = placemark.subThoroughfare

// annotation.city = placemark.locality

// annotation.state = placemark.administrativeArea

// annotation.zip = placemark.postalCode

// 将标注点对象添加到地图上 ，一旦调用这个方法，地图视图委托方法就会被调用 mapView:viewForAnnotation: self.mapView.addAnnotation(annotation)

i = i + 1

}while(i < placemarks!.count)

// for var i = 0;i < placemarks!.count;i=(i+1) {

// self.selText.resignFirstResponder() //关闭键盘

// let placemark = placemarks![i]

// // 调整地图位置和缩放比例

// let viewRegion = MKCoordinateRegionMakeWithDistance((placemark.location!.coordinate), 10000, 10000)

// self.mapView.setRegion(viewRegion, animated: true)

//

//

// let annotation = MapLocation(coordinate: (placemark.location?.coordinate)!)

//

// annotation.streetAdress = placemark.thoroughfare

// annotation.city = placemark.locality

// annotation.state = placemark.administrativeArea

// annotation.zip = placemark.postalCode

// self.mapView.addAnnotation(annotation)

// print("placemarks!.count:\(placemarks!.count)")

// }

if error != nil {

print(error?.localizedDescription)

}

}

}

// 这个方法在地图视图添加标注时回调 mapView.addAnnotation(annotation) annotation地图标注对象

func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {

// 用于获得地图标注对象 MKPinAnnotationView

var annotationView = self.mapView.dequeueReusableAnnotationViewWithIdentifier("dd") as? MKPinAnnotationView

if annotationView == nil {

annotationView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: "dd")

}

// 设置大头针标注视图的颜色为紫色（红色／绿色）

annotationView?.pinTintColor = UIColor.purpleColor()

// 设置标注视图时，是否以动画效果的信息显示在地图上

annotationView?.animatesDrop = true

// 用于在标注点上显示一些附加信息 （大点的文字保存在Title属性中小的文字保存中subTitle属性中）

annotationView?.canShowCallout = true

return annotationView

}

override func viewDidLoad() {

super.viewDidLoad()

// Do any additional setup after loading the view.

if CLLocationManager.locationServicesEnabled() == true {

mapView.mapType = MKMapType.Standard

mapView.delegate = self

// 跟踪用户位置变化

self.mapView.showsUserLocation = true

self.mapView.setUserTrackingMode(.Follow, animated: true)

}

}

override func didReceiveMemoryWarning() {

super.didReceiveMemoryWarning()

// Dispose of any resources that can be recreated.

}

/*

// MARK: - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

// Get the new view controller using segue.destinationViewController.

// Pass the selected object to the new view controller.

}

*/

}

（五）、使用程序外地图（调用ios苹果地图）

// MapOutViewController.swift

// ServiceAndMap

//

// Created by sus001 on 16/6/11.

// Copyright © 2016年 njsus. All rights reserved.

//

import UIKit

import CoreLocation

import MapKit

class MapOutViewController: UIViewController{

@IBOutlet weak var selTxt: UITextField!

@IBAction func selClick(sender: AnyObject) {

if self.selTxt.text == nil || NSString(string: self.selTxt.text!).length == 0 {

return

}

// 调用IOS苹果地图

CLGeocoder().geocodeAddressString(self.selTxt.text!) { (placemarks:[CLPlacemark]?, error:NSError?) in

print("查询记录数:\(placemarks?.count)")

// 多个点需要标注,起点默认是当前位置，通过定位服务获得

var arrary = [MKMapItem]()

var i = 0

repeat{

// 实例化MKPlacemark对象 CLPlacemark 是地图上的地标类 MKPlacemark 定位是一的地标类

let place = MKPlacemark(placemark: placemarks![i])

let mapItem = MKMapItem(placemark: place)

arrary.append(mapItem)

i = i + 1

}while(i < placemarks?.count)

self.selTxt.resignFirstResponder()

if arrary.count > 0 {

MKMapItem.openMapsWithItems(arrary, launchOptions: nil)

}

/*

// 单个点标注

if placemarks?.count > 0 {

let mark = placemarks![0]

// let coordinate = mark.location?.coordinate

// 实例化MKPlacemark对象 CLPlacemark 是地图上的地标类 MKPlacemark 定位是一的地标类

// let place = MKPlacemark(coordinate: (mark.location?.coordinate)!, addressDictionary: mark.addressDictionary as![String : AnyObject]?)

// let mapItem = MKMapItem(placemark: place)

let mkplacemark = MKPlacemark(placemark: mark)

// 实例化MKMapItem对象，封装类地图上一个点的信息类

let mapItem = MKMapItem(placemark: mkplacemark)

// 调用ios自动的苹果地图应用

// openInMapsWithLaunchOptions：是MKMapItem 类的实例方法 ，

// 参数是控制显示地图的初始化信息（设定路线模式／设定地图类型MKLaunchOptionsMapTypeKey／设定丢图中心点／设置地图跨度／设置显示交通状况）

mapItem.openInMapsWithLaunchOptions(nil)

self.selTxt.resignFirstResponder()

}

*/

}

}

override func viewDidLoad() {

super.viewDidLoad()

// Do any additional setup after loading the view.

}

override func didReceiveMemoryWarning() {

super.didReceiveMemoryWarning()

// Dispose of any resources that can be recreated.

}

自定义类

/*

// MARK: - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

// Get the new view controller using segue.destinationViewController.

// Pass the selected object to the new view controller.

}

*/

}

// MapLocation.swift

// ServiceAndMap

//

// Created by sus001 on 16/6/11.

// Copyright © 2016年 njsus. All rights reserved.

//

import Foundation

import MapKit

public class MapLocation:NSObject, MKAnnotation {

public var coordinate:CLLocationCoordinate2D

var name:String?

// var streetAdress:String?

// var city:String?

// var state:String?

// var zip:String?

init(coordinate:CLLocationCoordinate2D) {

self.coordinate = coordinate

}

public var subtitle: String?{

return name

}

public var title: String? { return "您的位置" }

// public var subtitle: String? {

// let ret = NSMutableString()

// if (self.state != nil) {

// ret.appendString(self.state!)

// }

// if (self.city != nil) {

// ret.appendString(self.city!)

// }

// if ((self.city != nil) && (self.state != nil)) {

// ret.appendString(", ")

// }

// if (self.streetAdress != nil) && ((self.state != nil) || (self.city != nil) || (self.zip != nil)){

// ret.appendString(" . ")

// }

// if self.streetAdress != nil {

// ret.appendString(self.streetAdress!)

// }

// if self.zip != nil {

// ret.appendFormat(" , \(self.zip)")

// }

// return ret as String

// }

}