Question

import UIKit
import CoreLocation
import GoogleMaps

class CourseClass2: UIViewController, UITableViewDelegate, UITableViewDataSource, UINavigationControllerDelegate, CLLocationManagerDelegate {


@IBOutlet weak var containView: UIView!

let locManager=CLLocationManager()



 override func viewDidLoad() {
        super.viewDidLoad()


        self.locManager.delegate = self
        self.locManager.desiredAccuracy = kCLLocationAccuracyBest
        self.locManager.requestWhenInUseAuthorization()
        self.locManager.startUpdatingLocation()
}



    func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        self.showCurrentLocationOnMap()
        self.locManager.stopUpdatingLocation()
    }

    func showCurrentLocationOnMap() {

        let camera = GMSCameraPosition.camera(withLatitude: (self.locManager.location?.coordinate.latitude)!, longitude: (self.locManager.location?.coordinate.latitude)!, zoom: 140)

        let mapView = GMSMapView.map(withFrame: self.view.bounds, camera: camera)
        mapView.isMyLocationEnabled = true

        let marker = GMSMarker()
        marker.position = camera.target
        marker.snippet = "Current location"
        marker.appearAnimation = GMSMarkerAnimation.pop
        marker.map = mapView
        self.containView.addSubview(mapView)

    }

我在我的控制器中添加了此代码，因为我试图在我当前位置使用标记显示地图（谷歌地图）但是没有工作（地图未显示），我在我的错误中做错了码？我该如何解决？

Answer 1

我建议您在界面构建器上设置containView类型，如此，也将名称更改为mapView（要清楚），请注意类型GMSMapView和将其链接到您的CourseClass2控制器：

（我不在Mac上，所以我使用了这张图片。图片来源：http://vikrambahl.com/google-maps-ios-xcode-storyboards/）

尝试使用以下代码，至少应显示地图（不带标记）。

import UIKit
import CoreLocation
import GoogleMaps

class CourseClass2: UIViewController, UITableViewDelegate, UITableViewDataSource, UINavigationControllerDelegate, CLLocationManagerDelegate {

@IBOutlet weak var mapView: GMSMapView!

let locManager=CLLocationManager()

override func viewDidLoad() {
    super.viewDidLoad()
    self.locManager.delegate = self
    self.locManager.desiredAccuracy = kCLLocationAccuracyBest
    self.locManager.requestWhenInUseAuthorization()
    self.locManager.startUpdatingLocation()

    mapView.isMyLocationEnabled = true
}

func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
    self.showCurrentLocationOnMap()
    self.locManager.stopUpdatingLocation()
}

func showCurrentLocationOnMap() {
    let camera = GMSCameraPosition.camera(withLatitude: (self.locManager.location?.coordinate.latitude)!, longitude: (self.locManager.location?.coordinate.latitude)!, zoom: 140)

    let marker = GMSMarker()
    marker.position = camera.target
    marker.snippet = "Current location"
    marker.appearAnimation = GMSMarkerAnimation.pop
    marker.map = mapView
}

还要小心强制解包选项(self.locManager.location?.coordinate.latitude)!因为它可能会导致致命错误

Answer 2

Xcode 9.2＆amp;斯威夫特4

转到info.plist文件，根据您的代码添加以下密钥。

 func showCurrentLocationOnMap() {

        let camera = GMSCameraPosition.camera(withLatitude: (self.locManager.location?.coordinate.latitude)!, longitude: (self.locManager.location?.coordinate.latitude)!, zoom: 10.0)

        let mapView = GMSMapView.map(withFrame: self.view.bounds, camera: camera)
        mapView.isMyLocationEnabled = true

        let marker = GMSMarker()
        marker.position = camera.target
        marker.snippet = "Current location"
        marker.appearAnimation = GMSMarkerAnimation.pop
        marker.map = mapView
        self.view = mapView

    }

移动到View控制器并用此代码替换showCurrentLocationOnMap（）函数。

public class CustomTokenSerializer : WSSecurityTokenSerializer {
    public CustomTokenSerializer(SecurityVersion sv)
        : base(sv) { }

    protected override void WriteTokenCore(XmlWriter writer, SecurityToken token) {
        var userToken = token as UserNameSecurityToken;
        var tokennamespace = "o";
        var nonce = GetSHA1String(Guid.NewGuid().ToString());
        writer.WriteRaw(
                $@"<{tokennamespace}:UsernameToken u:Id=""{token.Id}"" xmlns:u=""http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd\"">
                <{tokennamespace}:Username>{userToken.UserName}</{tokennamespace}:Username>
                <{tokennamespace}:Password Type=""http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText\"">{userToken.Password}</{tokennamespace}:Password>
                <{tokennamespace}:Nonce EncodingType=""http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary\"">{nonce}</{tokennamespace}:Nonce>
            </{tokennamespace}:UsernameToken>"
            );
    }

    protected string GetSHA1String(string phrase) {
        SHA1CryptoServiceProvider sha1Hasher = new SHA1CryptoServiceProvider();
        byte[] hashedDataBytes = sha1Hasher.ComputeHash(Encoding.UTF8.GetBytes(phrase));
        return Convert.ToBase64String(hashedDataBytes);
    }

}

在模拟器调试 - ＆gt;位置 - ＆gt; Apple 选择或Apple设备中运行代码。我的模拟器图像与您的代码。

它不会在我的控制器中显示地图（谷歌地图）。

2 个答案: