所以到Google Cloud Platform 新增專案
https://console.developers.google.com
建立完成後畫面如下，接下來點選啟用API和服務
點選Google Map for iOS
啟用
建立憑證
點選"我需要那些憑證？"
點選"為金鑰新增限制"保護你的KEY不被預期之外的程序呼叫
如果你有要限定某一款iOS APP 才能呼叫，記得在com.example.MyAPP填入
金鑰這樣就申請好囉
請跳過安裝這一步，記得要是Xcode 8 or 9 ，請在終端機打上以下內容
sudo gem install cocoapods
等待安裝完成。
接下來我們要開啟一個Xcode專案
當專案建立完畢後，關閉專案及Xcode，回到終端機，進入專案根目錄下
cd MapDemo/
接下來要安裝GOOGLE MAP SDK，首先初始化一下cocoa pods 需要的設定檔
pod init
接下來編輯設定檔
vi Podfile
設定檔一開始長這樣
# Uncomment the next line to define a global platform for your project
# platform :ios, '9.0'
target 'MapDemo' do
# Comment the next line if you're not using Swift and don't want to use dynamic frameworks
use_frameworks!
# Pods for MapDemo
target 'MapDemoTests' do
inherit! :search_paths
# Pods for testing
end
target 'MapDemoUITests' do
inherit! :search_paths
# Pods for testing
end
end
~
加入GOOGLE MAP SDK，主要有三行
source 'https://github.com/CocoaPods/Specs.git'
及pod 'GoogleMaps' pod 'GooglePlaces'
# Uncomment the next line to define a global platform for your project # platform :ios, '9.0' source 'https://github.com/CocoaPods/Specs.git' target 'MapDemo' do # Comment the next line if you're not using Swift and don't want to use dynamic frameworks use_frameworks! pod 'GoogleMaps' pod 'GooglePlaces' # Pods for MapDemo target 'MapDemoTests' do inherit! :search_paths # Pods for testing end target 'MapDemoUITests' do inherit! :search_paths # Pods for testing end end # Uncomment the next line to define a global platform for your project # platform :ios, '9.0' target 'MapDemo' do # Comment the next line if you're not using Swift and don't want to use dynamic frameworks use_frameworks! # Pods for MapDemo target 'MapDemoTests' do inherit! :search_paths # Pods for testing end target 'MapDemoUITests' do inherit! :search_paths # Pods for testing end end ~
接下來存檔，然候開始安裝SDK囉，視網路情況，可能需要一點時間喔。
pod install安裝過程如下
Analyzing dependencies
Downloading dependencies
Installing GoogleMaps (2.5.0)
Installing GooglePlaces (2.5.0)
Generating Pods project
Integrating client project
[!] Please close any current Xcode sessions and use `MapDemo.xcworkspace` for this project from now on.
Sending stats
Pod installation complete! There are 2 dependencies from the Podfile and 2 total pods installed.
[!] Automatically assigning platform ios with version 10.2 on target MapDemo because no platform was specified. Please specify a platform for this target in your Podfile. See `https://guides.cocoapods.org/syntax/podfile.html#platform`.
接下來用指令啟動xocde
open MapDemo.xcworkspace
安裝成功的話你會發現專案多了一個Pods
在AppDelegate.swift 加入import GoogleMaps
接下來在application(_:didFinishLaunchingWithOptions:) 方法中填入你的API KEY（金鑰）
GMSServices.provideAPIKey("YOUR_API_KEY")
接下來把Main.storyboard的View的Class改成GMSMapView
接著在ViewController.swift中加入import GoogleMaps 以及以下程式碼
override func loadView() {
// Create a GMSCameraPosition that tells the map to display the
// coordinate -33.86,151.20 at zoom level 6.
let camera = GMSCameraPosition.camera(withLatitude: -33.86, longitude: 151.20, zoom: 6.0)
let mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)
mapView.isMyLocationEnabled = true
view = mapView
// Creates a marker in the center of the map.
let marker = GMSMarker()
marker.position = CLLocationCoordinate2D(latitude: -33.86, longitude: 151.20)
marker.title = "Sydney"
marker.snippet = "Australia"
marker.map = mapView
}
接著在Info.plist中加入Google Maps SDK for iOS 使用的 URL 配置
或是用UI介面編輯
接下來就可以開啟模擬器執行看看地圖會不會出來囉，地點會在雪梨
接下來我們試著顯示自己位置看看，此時我們會需要再加入一個NSLocationAlwaysUsageDescription 到Info.plis 提示用戶需要位置權限的字串
接下來我們改一下程式碼如下
import UIKit import GoogleMaps class YourViewController: UIViewController { // You don't need to modify the default init(nibName:bundle:) method. override func loadView() { // Create a GMSCameraPosition that tells the map to display the // coordinate -33.86,151.20 at zoom level 6. let camera = GMSCameraPosition.camera(withLatitude: -33.86, longitude: 151.20, zoom: 6.0) let mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera) mapView.isMyLocationEnabled = true view = mapView // Creates a marker in the center of the map. let marker = GMSMarker() marker.position = CLLocationCoordinate2D(latitude: -33.86, longitude: 151.20) marker.title = "Sydney" marker.snippet = "Australia" marker.map = mapView } }
// // ViewController.swift // MapDemo // // Created by boywhy chen on 2018/2/20. // Copyright © 2018年 qq. All rights reserved. // import UIKit import GoogleMaps class ViewController: UIViewController,CLLocationManagerDelegate { var locationManager = CLLocationManager() var currentLocation: CLLocation? var mapView: GMSMapView! var zoomLevel: Float = 15.0 override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } override func loadView() { locationManager = CLLocationManager() locationManager.desiredAccuracy = kCLLocationAccuracyBest locationManager.requestAlwaysAuthorization() locationManager.distanceFilter = 50 locationManager.startUpdatingLocation() locationManager.delegate = self //init MapView let camera = GMSCameraPosition.camera(withLatitude: -33.86, longitude: 151.20, zoom: 6.0) mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera) mapView.isMyLocationEnabled = true view = mapView } // Handle incoming location events. func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { let location: CLLocation = locations.last! print("Location: \(location)") let camera = GMSCameraPosition.camera(withLatitude: location.coordinate.latitude, longitude: location.coordinate.longitude, zoom: zoomLevel) if mapView.isHidden { mapView.isHidden = false mapView.camera = camera } else { mapView.animate(to: camera) } } // Handle authorization for the location manager. func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) { switch status { case .restricted: print("Location access was restricted.") case .denied: print("User denied access to location.") // Display the map using the default location. mapView.isHidden = false case .notDetermined: print("Location status not determined.") case .authorizedAlways: fallthrough case .authorizedWhenInUse: print("Location status is OK.") } } // Handle location manager errors. func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) { locationManager.stopUpdatingLocation() print("Error: \(error)") } }
主要是增加定位功能，接下來執行會要求權限，按下Allow
如果是用模擬器的話，可以選置以下幾種方式模擬位置
APPLE ，定位在APPLE總部
Custom Location 則是自己輸入經緯度
City Bike Ride ，City Run
其實是類似功能，只是移動速度不太一樣以及移動路徑不太相同
Freeway Driver 則是模擬在高速公路開車
參考文件
https://developers.google.com/maps/documentation/ios-sdk/map?hl=zh-tw
https://developers.google.com/maps/documentation/ios-sdk/current-places-tutorial?hl=zh-tw
https://stackoverflow.com/questions/24062509/location-services-not-working-in-ios-8
