swift 撸了个简单地图，实现的主要功能就是标题了，废话懒的多说，代码说话
//
// MapController.swift
// sendWater
//
// Created by 孟祥锟 on 2018/9/28.
// Copyright © 2018年 sandianshui. All rights reserved.
//
import UIKit
import MapKit
import CoreLocation
private let annotationId : String = "annotationId"
class MapController: UIViewController {
//前面页面传进来的地理位置
var locationStr = ""
var coord2D:CLLocationCoordinate2D?
//MARK:--懒加载
private lazy var mapV : MKMapView = {[weak self] in
let mapV = MKMapView()
mapV.mapType = MKMapType.standard
mapV.userTrackingMode = MKUserTrackingMode.followWithHeading
mapV.showsUserLocation = true
mapV.delegate = self
return mapV
}()
private lazy var locationManager : CLLocationManager = {[weak self] in
let manager = CLLocationManager()
//设置定位精度
manager.desiredAccuracy = kCLLocationAccuracyBest
manager.distanceFilter = 100.0
manager.delegate = self
manager.requestWhenInUseAuthorization()
return manager
}()
//根据地址名字获取经纬度用
private lazy var geocoder : CLGeocoder = {
let geocoder = CLGeocoder()
return geocoder
}()
private lazy var annotation : MKAnnotationView = {
let annot = MKPointAnnotation()
let annotationV = MKAnnotationView(annotation:annot, reuseIdentifier: annotationId)
return annotationV
}()
private lazy var backBtn : UIButton = { [weak self] in
let backBtn = UIButton(type: UIButtonType.custom)
backBtn.backgroundColor = UIColor.white
backBtn.setImage(UIImage(named: "backImg"), for: .normal)
backBtn.imageEdgeInsets = UIEdgeInsets(top: 6, left: 10, bottom: 6, right: 10)
backBtn.imageView?.contentMode = .scaleAspectFit
backBtn.clipsToBounds = true
backBtn.layer.cornerRadius = 4
backBtn.addTarget(self, action: #selector(backUpPage), for: .touchUpInside)
return backBtn
}()
private lazy var locationBtn : UIButton = { [weak self] in
let locationBtn = UIButton(type: UIButtonType.custom)
locationBtn.setBackgroundImage(UIImage(named: "locationBtn"), for: .normal)
locationBtn.addTarget(self, action: #selector(locationSelf), for: .touchUpInside)
return locationBtn
}()
private lazy var gpsBtn : UIButton = {
let gpsBtn = UIButton(type: UIButtonType.custom)
gpsBtn.backgroundColor = UIColor.white
gpsBtn.setTitle("导 航", for: .normal)
gpsBtn.titleLabel?.font = UIFont.systemFont(ofSize: 16)
gpsBtn.setTitleColor(UIColor.black, for: .normal)
gpsBtn.addTarget(self, action: #selector(gpsBtnPress), for: .touchUpInside)
return gpsBtn
}()
private lazy var alertSheet : UIAlertController = {
let alertSheet = UIAlertController(title: "导航", message: "", preferredStyle: UIAlertControllerStyle.actionSheet)
return alertSheet
}()
//MARK:--入口函数
override func viewDidLoad() {
super.viewDidLoad()
setUI()
//进行反地理编码
geocodeingGetLocation()
//设置底部弹框
setAlertSheet()
}
//页面一显示就进行定位
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
}
}
//MARK:--设置UI
extension MapController {
private func setUI () {
view.addSubview(mapV)
view.addSubview(backBtn)
view.addSubview(gpsBtn)
view.addSubview(locationBtn)
mapV.snp.makeConstraints { (make) in
make.edges.equalTo(self.view)
}
backBtn.snp.makeConstraints { (make) in
make.left.equalTo(self.view).offset(15)
make.top.equalTo(self.view).offset(30)
make.width.equalTo(35)
make.height.equalTo(30)
}
gpsBtn.snp.makeConstraints { (make) in
make.left.bottom.right.equalTo(self.view)
make.height.equalTo(60)
}
locationBtn.snp.makeConstraints { (make) in
make.left.equalTo(self.view).offset(15)
make.bottom.equalTo(self.gpsBtn.snp.top).offset(-25)
make.width.height.equalTo(35)
}
}
//设置底部弹框
private func setAlertSheet () {
let sheetOptionZero = UIAlertAction(title: "自带地图", style: UIAlertActionStyle.default) { (action) in
let currentLocation = MKMapItem.forCurrentLocation()
let toLocation = MKMapItem.init(placemark: MKPlacemark.init(coordinate: self.coord2D!, addressDictionary: nil))
MKMapItem.openMaps(with: [currentLocation, toLocation],
launchOptions: [MKLaunchOptionsDirectionsModeKey:MKLaunchOptionsDirectionsModeDriving,
MKLaunchOptionsShowsTrafficKey:true])
self.alertSheet.dismiss(animated: true, completion: nil)
}
let sheetOptionO = UIAlertAction(title: "高德地图", style: UIAlertActionStyle.default) { (action) in
if UIApplication.shared.canOpenURL(URL.init(string: "iosamap://")!) {
let urlString = "iosamap://navi?sourceApplication=随便写&backScheme=随便写&lat=\(self.coord2D!.latitude)&lon=\(self.coord2D!.longitude)&dev=0&style=2"
let escapedString = urlString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)
UIApplication.shared.openURL(URL.init(string: escapedString!)!)
}else{
ModelSelector.showMessage(message: "您没有安装高德地图")
}
self.alertSheet.dismiss(animated: true, completion: nil)
}
let sheetOptionT = UIAlertAction(title: "百度地图", style: UIAlertActionStyle.default) { (action) in
if UIApplication.shared.canOpenURL(URL.init(string: "baidumap://")!) {
//注意：origin={{我的位置}}不要变；目的地随便写
let urlString = "baidumap://map/direction?origin={{我的位置}}&destination=latlng:\(self.coord2D!.latitude),\(self.coord2D!.longitude)|name=\(self.locationStr)&mode=driving&coord_type=gcj02"
let escapedString = urlString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)
UIApplication.shared.openURL(URL.init(string: escapedString!)!)
}else{
ModelSelector.showMessage(message: "您没有安装百度地图")
}
self.alertSheet.dismiss(animated: true, completion: nil)
}
let sheetOptionHidden = UIAlertAction(title: "取消", style: UIAlertActionStyle.default) { (action) in
self.alertSheet.dismiss(animated: true, completion: nil)
}
alertSheet.addAction(sheetOptionZero)
alertSheet.addAction(sheetOptionO)
alertSheet.addAction(sheetOptionT)
alertSheet.addAction(sheetOptionHidden)
}
}
//MARK:--事件处理
extension MapController {
//返回上一页
@objc private func backUpPage () {
self.dismiss(animated: true, completion: nil)
}
//点击定位
@objc private func locationSelf () {
locationManager.startUpdatingLocation()
}
//点击导航
@objc private func gpsBtnPress () {
self.present(alertSheet, animated: true, completion: nil)
}
//理编码操作
private func geocodeingGetLocation () {
geocoder.geocodeAddressString(self.locationStr) { (placeMarks, error) in
if error != nil {
ModelSelector.showMessage(message: "没找到您要的地址")
}else{
guard let placeM : CLPlacemark = (placeMarks?.first) else { return }
guard let locat = placeM.location else { return }
let center = locat.coordinate
let span = MKCoordinateSpanMake(0.01, 0.01)
let region = MKCoordinateRegionMake(center, span)
self.mapV.setRegion(region, animated: true)
//讲coord2D 赋值给全局变量，调第三方的时候使用
self.coord2D = center
let annot = MyAnnotation()
annot.coordinate = center
annot.title = self.locationStr
self.mapV.addAnnotation(annot)
}
}
}
}
extension MapController : MKMapViewDelegate {
//更新到用户的位置时就会调用(显示的位置、显示范围改变) 实时更新
func mapView(_ mapView: MKMapView, didUpdate userLocation: MKUserLocation) {
}
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
if !(annotation is MyAnnotation) {
return nil
}
var annotV = mapView.dequeueReusableAnnotationView(withIdentifier: annotationId)
if annotV == nil {
annotV = MKAnnotationView(annotation: annotation, reuseIdentifier: annotationId)
}
annotV?.annotation = annotation
annotV?.image = UIImage(named: "address")
annotV?.contentMode = .scaleToFill
annotV?.canShowCallout = true//设置大头针弹框
annotV?.calloutOffset = CGPoint(x: 10, y: 0)
return annotV
}
}
extension MapController : CLLocationManagerDelegate {
//点击定位走一次
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
//地球坐标转化成火星坐标
guard let location = locations.first?.locationMarsFromEarth() else { return }
let center = location.coordinate
let span = MKCoordinateSpanMake(0.01, 0.01)
let region = MKCoordinateRegionMake(center, span)
self.mapV.setRegion(region, animated: true)
self.locationManager.stopUpdatingLocation()
}
func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
print(error)
}
}
上面是我写的代码，下面坐标转换当然网上找的了，附上https://www.jianshu.com/p/347e4dc3d05a ,万分感谢倾世圣伊的分享，简单来说就是对CLLocation 做了个扩展。下面附上他的代码。
import UIKit
import CoreLocation
// --- transform_earth_from_mars ---
// 参考来源：https://on4wp7.codeplex.com/SourceControl/changeset/view/21483#353936
// Krasovsky 1940
//
// a = 6378245.0, 1/f = 298.3
// b = a * (1 - f)
// ee = (a^2 - b^2) / a^2;
let a:Double = 6378245.0
let ee:Double = 0.00669342162296594323
// --- transform_earth_from_mars end ---
// --- transform_mars_vs_bear_paw ---
// 参考来源：http://blog.woodbunny.com/post-68.html
let x_pi:Double = M_PI * 3000.0 / 180.0
public extension CLLocation {
/// 从地图坐标转化到火星坐标
///
/// - Returns: CLLocation
func locationMarsFromEarth() -> CLLocation {
let (n_lat,n_lng) = CLLocation.transform_earth_from_mars(lat: self.coordinate.latitude, lng: self.coordinate.longitude)
let coord_2d = CLLocationCoordinate2D(latitude: n_lat + self.coordinate.latitude, longitude: n_lng + self.coordinate.longitude)
return CLLocation(coordinate: coord_2d, altitude: self.altitude, horizontalAccuracy: self.horizontalAccuracy, verticalAccuracy: self.horizontalAccuracy, course: self.course, speed: self.speed, timestamp: self.timestamp)
}
/// 从火星坐标到地图坐标
///
/// - Returns: CLLocation
func locationEarthFromMars() -> CLLocation {
let (n_lat,n_lng) = CLLocation.transform_earth_from_mars(lat: self.coordinate.latitude, lng: self.coordinate.longitude)
let coord_2d = CLLocationCoordinate2D(latitude: self.coordinate.latitude - n_lat, longitude: self.coordinate.longitude - n_lng)
return CLLocation(coordinate: coord_2d, altitude: self.altitude, horizontalAccuracy: self.horizontalAccuracy, verticalAccuracy: self.horizontalAccuracy, course: self.course, speed: self.speed, timestamp: self.timestamp)
}
/// 从火星坐标转化到百度坐标
///
/// - Returns: CLLocation
func locationBaiduFromMars() -> CLLocation {
let (n_lat,n_lng) = CLLocation.transform_mars_from_baidu(lat: self.coordinate.latitude, lng: self.coordinate.longitude)
let coord_2d = CLLocationCoordinate2D(latitude: n_lat, longitude: n_lng)
return CLLocation(coordinate: coord_2d, altitude: self.altitude, horizontalAccuracy: self.horizontalAccuracy, verticalAccuracy: self.horizontalAccuracy, course: self.course, speed: self.speed, timestamp: self.timestamp)
}
/// 从百度坐标到火星坐标
///
/// - Returns: CLLocation
func locationMarsFromBaidu() -> CLLocation {
let (n_lat,n_lng) = CLLocation.transform_baidu_from_mars(lat: self.coordinate.latitude, lng: self.coordinate.longitude)
let coord_2d = CLLocationCoordinate2D(latitude: n_lat, longitude: n_lng)
return CLLocation(coordinate: coord_2d, altitude: self.altitude, horizontalAccuracy: self.horizontalAccuracy, verticalAccuracy: self.horizontalAccuracy, course: self.course, speed: self.speed, timestamp: self.timestamp)
}
/// 从百度坐标到地图坐标
///
/// - Returns: CLLocation
func locationEarthFromBaidu() -> CLLocation {
let mars = self.locationMarsFromBaidu()
let (n_lat,n_lng) = CLLocation.transform_earth_from_mars(lat: mars.coordinate.latitude, lng: mars.coordinate.longitude)
let coord_2d = CLLocationCoordinate2D(latitude: self.coordinate.latitude - n_lat, longitude: self.coordinate.longitude - n_lng)
return CLLocation(coordinate: coord_2d, altitude: self.altitude, horizontalAccuracy: self.horizontalAccuracy, verticalAccuracy: self.horizontalAccuracy, course: self.course, speed: self.speed, timestamp: self.timestamp)
}
private class func transform_earth_from_mars(lat: Double, lng: Double) -> (Double, Double) {
if CLLocation.transform_sino_out_china(lat: lat, lng: lng) {
return (lat, lng)
}
var dLat = CLLocation.transform_earth_from_mars_lat(lng - 105.0, lat - 35.0)
var dLng = CLLocation.transform_earth_from_mars_lng(lng - 105.0, lat - 35.0)
let radLat = lat / 180.0 * M_PI
var magic = sin(radLat)
magic = 1 - ee * magic * magic
let sqrtMagic:Double = sqrt(magic)
dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * M_PI)
dLng = (dLng * 180.0) / (a / sqrtMagic * cos(radLat) * M_PI)
return (dLat,dLng)
}
private class func transform_earth_from_mars_lat(_ x: Double,_ y: Double) -> Double {
var ret: Double = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * sqrt(fabs(x))
ret += (20.0 * sin(6.0 * x * M_PI) + 20.0 * sin(2.0 * x * M_PI)) * 2.0 / 3.0
ret += (20.0 * sin(y * M_PI) + 40.0 * sin(y / 3.0 * M_PI)) * 2.0 / 3.0
ret += (160.0 * sin(y / 12.0 * M_PI) + 320 * sin(y * M_PI / 30.0)) * 2.0 / 3.0
return ret
}
private class func transform_earth_from_mars_lng(_ x: Double,_ y: Double) -> Double {
var ret: Double = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * sqrt(fabs(x))
ret += (20.0 * sin(6.0 * x * M_PI) + 20.0 * sin(2.0 * x * M_PI)) * 2.0 / 3.0
ret += (20.0 * sin(x * M_PI) + 40.0 * sin(x / 3.0 * M_PI)) * 2.0 / 3.0
ret += (150.0 * sin(x / 12.0 * M_PI) + 300.0 * sin(x / 30.0 * M_PI)) * 2.0 / 3.0
return ret
}
private class func transform_mars_from_baidu(lat: Double, lng: Double) -> (Double,Double) {
let x = lng , y = lat
let z = sqrt(x * x + y * y) + 0.00002 * sin(y * x_pi)
let theta = atan2(y, x) + 0.000003 * cos(x * x_pi)
return (z * sin(theta) + 0.006, z * cos(theta) + 0.0065)
}
private class func transform_baidu_from_mars(lat: Double, lng: Double) -> (Double,Double) {
let x = lng - 0.0065 , y = lat - 0.006
let z = sqrt(x * x + y * y) - 0.00002 * sin(y * x_pi)
let theta = atan2(y, x) - 0.000003 * cos(x * x_pi)
return (z * sin(theta), z * cos(theta))
}
private class func transform_sino_out_china(lat: Double, lng: Double) -> Bool {
if (lng < 72.004 || lng > 137.8347) {
return true
}
if (lat < 0.8293 || lat > 55.8271) {
return true
}
return false
}
}
没啥事儿，就是想写个简书玩儿
啊啊，祝大家十一快乐
