Getting started with the Consumer SDK for iOS

Use CocoaPods

To configure the Consumer SDK using CocoaPods, you need the following items:

• The CocoaPods tool: To install this tool, open the Terminal and run the following command. shell sudo gem install cocoapods Refer to the CocoaPods Getting Started guide for more details.

1. Create a Podfile for the Consumer SDK and use it to install the API and its dependencies. First, create a file named Podfile in your project directory. This file defines your project's dependencies. Then edit the Podfile and add your dependencies. Here is an example which includes the dependencies:

   source "https://github.com/CocoaPods/Specs.git"
   
   target 'YOUR_APPLICATION_TARGET_NAME_HERE' do
     pod 'GoogleRidesharingConsumer'
   end
   

2. Save the Podfile. Open a terminal and go to the directory containing the Podfile:

   cd <path-to-project>
   

3. Run the pod install command. This will install the APIs specified in the Podfile, along with any dependencies they may have.

   pod install
   

4. Close Xcode and then open (double-click) your project's .xcworkspace file to launch Xcode. To open the project later, use the .xcworkspace file.

Install the XCFramework

An XCFramework is a binary package that you use to install the Consumer SDK. You can use this package on multiple platforms, including machines using the M1 chipset. This guide shows how to manually add the XCFramework containing the Consumer SDK to your project and configure your build settings in Xcode.

1. Unpack the source files that you received from Google.

2. Start Xcode and either open an existing project, or create a new project. If you're new to iOS, create a new project and select the iOS App template.

3. Create a Frameworks group under your project group if one does not exist already.

4. Drag the gRPCCertificates.bundle file included in the Resources directory of the zip containing the XCFramework into the top level directory of your Xcode project. When prompted, select Copy items if needed.

5. To install the Consumer SDK, drag the GoogleRidesharingConsumer.xcframework file into your project under Frameworks, Libraries, and Embedded Content. When prompted, select Copy items if needed.

6. Select your project from the Project Navigator, and choose your application's target.

7. Open the Build Phases tab, and in Link Binary with Libraries, add the following frameworks and libraries if they are not already present:

   • Accelerate.framework
   • CoreData.framework
   • CoreGraphics.framework
   • CoreImage.framework
   • CoreLocation.framework
   • CoreTelephony.framework
   • CoreText.framework
   • GLKit.framework
   • ImageIO.framework
   • libc++.tbd
   • libz.tbd
   • Metal.framework
   • OpenGLES.framework
   • QuartzCore.framework
   • SystemConfiguration.framework
   • UIKit.framework

8. Choose your project, rather than a specific target, and open the Build Settings tab. In the Other Linker Flags section, add ‑ObjC for both debug and release. If these settings are not visible, change the filter in the Build Settings bar from Basic to All.

Alpha/Beta SDK versions

To configure the Alpha or Beta versions of the Consumer SDK using CocoaPods for iOS you need the following items:

• The CocoaPods tool: To install this tool, open the Terminal and run the following command.

  sudo gem install cocoapods
  

  Refer to the CocoaPods Getting Started guide for more details.

• Your development account on the Google access list. The pod repository of the Alpha and Beta versions of the SDK are not public source. To access those versions, contact the Google Customer Engineer. The engineer adds your development account to the access list and then sets a cookie for authentication.

After your project is on the access list, you can access the pod.

1. Create a Podfile for the Consumer SDK for iOS and use it to install the API and its dependencies: Create a file named Podfile in your project directory. This file defines your project's dependencies. Edit the Podfile and add your dependencies. Here is an example which includes the dependencies:

   source "https://cpdc-eap.googlesource.com/ridesharing-consumer-sdk"
   source "https://github.com/CocoaPods/Specs.git"
   
   target 'YOUR_APPLICATION_TARGET_NAME_HERE' do
     pod 'GoogleRidesharingConsumer'
   end
   

2. Save the Podfile. Open a terminal and go to the directory containing the Podfile:

   cd <path-to-project>
   

3. Run the pod install command. This will install the APIs specified in the Podfile, along with any dependencies they may have.

   pod install
   

4. Close Xcode, and then open (double-click) your project's .xcworkspace file to launch Xcode. From this time onwards, you must use the .xcworkspace file to open the project.

Swift

/*
 * SampleAccessTokenProvider.swift
 */
import GoogleRidesharingConsumer

private let providerURL = "INSERT_YOUR_TOKEN_PROVIDER_URL"

class SampleAccessTokenProvider: NSObject, GMTCAuthorization {
  private struct AuthToken {
    // The cached trip token.
    let token: String
    // Keep track of when the token expires for caching.
    let expiration: TimeInterval
    // Keep track of the trip ID the cached token is for.
    let tripID: String
  }

  enum AccessTokenError: Error {
    case missingAuthorizationContext
    case missingData
  }

  private var authToken: AuthToken?

  func fetchToken(
    with authorizationContext: GMTCAuthorizationContext?,
    completion: @escaping GMTCAuthTokenFetchCompletionHandler
  ) {
    // Get the trip ID from the authorizationContext. This is set by the Consumer SDK.
    guard let authorizationContext = authorizationContext else {
      completion(nil, AccessTokenError.missingAuthorizationContext)
      return
    }
    let tripID = authorizationContext.tripID

    // If appropriate, use the cached token.
    if let authToken = authToken,
      authToken.expiration > Date.now.timeIntervalSince1970 && authToken.tripID == tripID
    {
      completion(authToken.token, nil)
      return
    }

    // Otherwise, try to fetch a new token from your server.
    let request = URLRequest(url: URL(string: providerURL))
    let task = URLSession.shared.dataTask(with: request) { [weak self] data, _, error in
      guard let strongSelf = self else { return }
      guard error == nil else {
        completion(nil, error)
        return
      }

      // Replace the following key values with the appropriate keys based on your
      // server's expected response.
      let tripTokenKey = "TRIP_TOKEN_KEY"
      let tokenExpirationKey = "TOKEN_EXPIRATION"
      guard let data = data,
        let fetchData = try? JSONSerialization.jsonObject(with: data) as? [String: Any],
        let token = fetchData[tripTokenKey] as? String,
        let expiration = fetchData[tokenExpirationKey] as? Double
      else {
        completion(nil, AccessTokenError.missingData)
        return
      }

      strongSelf.authToken = AuthToken(token: token, expiration: expiration, tripID: tripID)
      completion(token, nil)
    }
    task.resume()
  }
}

Objective-C

/*
 * SampleAccessTokenProvider.h
 */
#import <Foundation/Foundation.h>
#import <GoogleRidesharingConsumer/GoogleRidesharingConsumer.h>

NS_ASSUME_NONNULL_BEGIN

@interface SampleAccessTokenProvider : NSObject <GMTCAuthorization>

@end

NS_ASSUME_NONNULL_END

/*
 * SampleAccessTokenProvider.m
 */
#import "SampleAccessTokenProvider.h"
#import "GoogleRidesharingConsumer/GoogleRidesharingConsumer.h"

static NSString *const PROVIDER_URL = @"INSERT_YOUR_TOKEN_PROVIDER_URL";

// SampleAccessTokenProvider.m
@implementation SampleAccessTokenProvider {
  // The cached token with claims to the current trip.
  NSString *_cachedTripToken;
  // Keep track of the Trip ID the cached token is for.
  NSString *_lastKnownTripID;
  // Keep track of when tokens expire for caching.
  NSTimeInterval _tokenExpiration;
}

- (void)fetchTokenWithContext:(nullable GMTCAuthorizationContext *)authorizationContext
                   completion:(nonnull GMTCAuthTokenFetchCompletionHandler)completion {
  // Get the trip ID from the authorizationContext. This is set by the Consumer SDK.
  NSString *tripID = authorizationContext.tripID;

  // Clear cached trip token if trip ID has changed.
  if (![_lastKnownTripID isEqual:tripID]) {
    _tokenExpiration = 0.0;
    _cachedTripToken = nil;
  }
  _lastKnownTripID = tripID;

  // Clear cached tripToken if it has expired.
  if ([[NSDate date] timeIntervalSince1970] > _tokenExpiration) {
    _cachedTripToken = nil;
  }

  // If appropriate, use the cached token.
  if (_cachedTripToken) {
    completion(_cachedTripToken, nil);
    return;
  }
  // Otherwise, try to fetch a new token from your server.
  NSURL *requestURL = [NSURL URLWithString:PROVIDER_URL];
  NSMutableURLRequest *request =
      [[NSMutableURLRequest alloc] initWithURL:requestURL];
  request.HTTPMethod = @"GET";

  // Replace the following key values with the appropriate keys based on your
  // server's expected response.
  NSString *tripTokenKey = @"TRIP_TOKEN_KEY";
  NSString *tokenExpirationKey = @"TOKEN_EXPIRATION";

  __weak typeof(self) weakSelf = self;
  void (^handler)(NSData *_Nullable data, NSURLResponse *_Nullable response,
                  NSError *_Nullable error) =
      ^(NSData *_Nullable data, NSURLResponse *_Nullable response, NSError *_Nullable error) {
        typeof(self) strongSelf = weakSelf;
        if (error) {
          completion(nil, error);
          return;
        }

        NSError *JSONError;
        NSMutableDictionary *JSONResponse =
            [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&JSONError];

        if (JSONError) {
          completion(nil, JSONError);
          return;
        } else {
          // Sample code only. No validation logic.
          id expirationData = JSONResponse[tokenExpirationKey];
          if ([expirationData isKindOfClass:[NSNumber class]]) {
            NSTimeInterval expirationTime = ((NSNumber *)expirationData).doubleValue;
            strongSelf->_tokenExpiration = [[NSDate date] timeIntervalSince1970] + expirationTime;
          }
          strongSelf->_cachedTripToken = JSONResponse[tripTokenKey];
          completion(JSONResponse[tripTokenKey], nil);
        }
      };
  NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration];
  NSURLSession *mainQueueURLSession =
      [NSURLSession sessionWithConfiguration:config delegate:nil
                               delegateQueue:[NSOperationQueue mainQueue]];
  NSURLSessionDataTask *task = [mainQueueURLSession dataTaskWithRequest:request completionHandler:handler];
  [task resume];
}

@end

Swift

/*
 * AppDelegate.swift
 */
import GoogleRidesharingConsumer
import GoogleMaps

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

  func application(_ application: UIApplication,
      didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    // Register your API key for GMSServices.
    GMSServices.provideAPIKey(yourMapsAPIKey)

    // Set the instance of the SampleAccessTokenProvider.
    GMTCServices.setAccessTokenProvider(SampleAccessTokenProvider(), providerID: yourProviderID)

    // Other initialization code ...
    return true
  }
}

Objective-C

/*
 * AppDelegate.m
 */
#import <GoogleMaps/GoogleMaps.h>
#import <GoogleRidesharingConsumer/GoogleRidesharingConsumer.h>

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application
    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  //Register your API key for GMSServices.
  [GMSServices provideAPIKey:yourMapsAPIKey];

  //Set the instance of the AccessTokenFactory.
  [GMTCServices setAccessTokenProvider:[[SampleAccessTokenProvider alloc] init]
                            providerID:yourProviderID];

  // Other initialization code ...
  return YES;
}

@end

Swift

/*
 * MapViewController.swift
 */
class ViewController: UIViewController, GMTCMapViewDelegate {
  private var rideSharingMap: GMTCMapView?

  override func viewDidLoad() {
    super.viewDidLoad()

    self.rideSharingMap = GMTCMapView(frame: UIScreen.main.bounds)
    self.rideSharingMap.delegate = self
    self.rideSharingMap?.settings.myLocationButton = true
    self.view.addSubview(self.rideSharingMap!)
    ...
  }

Objective-C

/*
 * MapViewController.h
 */
@interface MapViewController : UIViewController<GMTCMapViewDelegate>
...
@end

/*
 * MapViewController.m
 */
@implementation MapViewController

- (void)viewDidLoad {
  [super viewDidLoad];
  ...
  self.mapView = [[GMTCMapView alloc] init];
  self.mapView.settings.myLocationButton = YES;
  self.mapView.delegate = self;
  ...
}

...

@end

Swift

func mapViewDidInitialize(_ mapview: GMTCMapView) {
  // Handle the update to the state of the map view to browsing.
}

func mapView(_ mapView: GMSMapView, didTapConsumerMarker mapMarker: GMSMarker, markerType: GMTCMapViewMarkerType) -> Bool {
  // Handle the mapView marker was tapped.
}

Objective-C

/*
 * MapViewController.m
 */
#pragma mark - GMTCMapViewDelegate implementation

// Handle state update of map view.
- (void)mapViewDidInitializeCustomerState:(GMTCMapView *)mapview {
  // Handle the update to the state of the map view to browsing.
}

- (void)mapView:(GMSMapView *)mapView
    didTapConsumerMarker:(nonnull GMSMarker *)mapMarker
              markerType:(GMTCMapViewMarkerType)markerType {
  // Handle the mapView marker was tapped.
}

Swift

/*
 * MapViewController.swift
 */
override func viewDidLoad() {
  super.viewDidLoad()
  ...
  self.mapView = GMTCMapView(frame: UIScreen.main.bounds)
  self.mapView.delegate = self
  self.view.addSubview(self.mapView)
}

func mapViewDidInitializeCustomerState(_: GMTCMapView) {
  self.mapView.pickupLocation = self.selectedPickupLocation
  self.mapView.dropoffLocation = self.selectedDropoffLocation

  self.startConsumerMatchWithLocations(
    pickupLocation: self.mapView.pickupLocation!,
    dropoffLocation: self.mapView.dropoffLocation!
  ) { [weak self] (tripName, error) in
    guard let strongSelf = self else { return }
    if error != nil {
      // print error message.
      return
    }
    let tripService = GMTCServices.shared().tripService
    // Create a tripModel instance for listening the update of the trip
    // specified by this trip name.
    let tripModel = tripService.tripModel(forTripName: tripName)
    // Create a journeySharingSession instance based on the tripModel
    let journeySharingSession = GMTCJourneySharingSession(tripModel: tripModel)
    // Add the journeySharingSession instance on the mapView for UI updating.
    strongSelf.mapView.show(journeySharingSession)
    // Register for the trip update events.
    tripModel.register(strongSelf)

    strongSelf.currentTripModel = tripModel
    strongSelf.currentJourneySharingSession = journeySharingSession
    strongSelf.hideLoadingView()
  }

  self.showLoadingView()
}

Objective-C

/*
 * MapViewController.m
 */
- (void)viewDidLoad {
  [super viewDidLoad];
  ...
  self.mapView = [[GMTCMapView alloc] init];
  self.mapView.delegate = self;
  [self.view addSubview:self.mapView];
}

// Handle the callback when the GMTCMapView did initialized.
- (void)mapViewDidInitializeCustomerState:(GMTCMapView *)mapview {
  self.mapView.pickupLocation = self.selectedPickupLocation;
  self.mapView.dropoffLocation = self.selectedDropoffLocation;

  __weak __typeof(self) weakSelf = self;
  [self startTripBookingWithPickupLocation:self.selectedPickupLocation
                           dropoffLocation:self.selectedDropoffLocation
                                completion:^(NSString *tripName, NSError *error) {
                                  __typeof(self) strongSelf = weakSelf;
                                  GMTCTripService *tripService = [GMTCServices sharedServices].tripService;
                                  // Create a tripModel instance for listening to updates to the trip specified by this trip name.
                                  GMTCTripModel *tripModel = [tripService tripModelForTripName:tripName];
                                  // Create a journeySharingSession instance based on the tripModel.
                                  GMTCJourneySharingSession *journeySharingSession =
                                    [[GMTCJourneySharingSession alloc] initWithTripModel:tripModel];
                                  // Add the journeySharingSession instance on the mapView for updating the UI.
                                  [strongSelf.mapView showMapViewSession:journeySharingSession];
                                  // Register for trip update events.
                                  [tripModel registerSubscriber:self];

                                  strongSelf.currentTripModel = tripModel;
                                  strongSelf.currentJourneySharingSession = journeySharingSession;
                                  [strongSelf hideLoadingView];
                                }];
    [self showLoadingView];
}

Swift

/*
 * MapViewController.swift
 */
func cancelCurrentActiveTrip() {
  // Stop the tripModel
  self.currentTripModel.unregisterSubscriber(self)

  // Remove the journey sharing session from the mapView's UI stack.
  self.mapView.hide(journeySharingSession)
}

Objective-C

/*
 * MapViewController.m
 */
- (void)cancelCurrentActiveTrip {
  // Stop the tripModel
  [self.currentTripModel unregisterSubscriber:self];

  // Remove the journey sharing session from the mapView's UI stack.
  [self.mapView hideMapViewSession:journeySharingSession];
}

Swift

/*
 * MapViewController.swift
 */
override func viewDidLoad() {
  super.viewDidLoad()
  // Register for trip update events.
  self.currentTripModel.register(self)
}

Objective-C

/*
 * MapViewController.m
 */
- (void)viewDidLoad {
  [super viewDidLoad];
  // Register for trip update events.
  [self.currentTripModel registerSubscriber:self];
  ...
}

Swift

/*
 * MapViewController.swift
 */
deinit {
  self.currentTripModel.unregisterSubscriber(self)
}

Objective-C

/*
 * MapViewController.m
 */
- (void)dealloc {
  [self.currentTripModel unregisterSubscriber:self];
  ...
}

Swift

/*
 * MapViewController.swift
 */
func tripModel(_: GMTCTripModel, didUpdate trip: GMTSTrip?, updatedPropertyFields: GMTSTripPropertyFields) {
  // Update the UI with the new `trip` data.
  self.updateUI(with: trip)
}

func tripModel(_: GMTCTripModel, didUpdate tripStatus: GMTSTripStatus) {
  // Handle trip status did change.
}

func tripModel(_: GMTCTripModel, didUpdateActiveRouteRemainingDistance activeRouteRemainingDistance: Int32) {
  // Handle remaining distance of active route did update.
}

func tripModel(_: GMTCTripModel, didUpdateActiveRoute activeRoute: [GMTSLatLng]?) {
  // Handle trip active route did update.
}

func tripModel(_: GMTCTripModel, didUpdate vehicleLocation: GMTSVehicleLocation?) {
  // Handle vehicle location did update.
}

func tripModel(_: GMTCTripModel, didUpdatePickupLocation pickupLocation: GMTSTerminalLocation?) {
  // Handle pickup location did update.
}

func tripModel(_: GMTCTripModel, didUpdateDropoffLocation dropoffLocation: GMTSTerminalLocation?) {
  // Handle drop off location did update.
}

func tripModel(_: GMTCTripModel, didUpdatePickupETA pickupETA: TimeInterval) {
  // Handle the pickup ETA did update.
}

func tripModel(_: GMTCTripModel, didUpdateDropoffETA dropoffETA: TimeInterval) {
  // Handle the drop off ETA did update.
}

func tripModel(_: GMTCTripModel, didUpdateRemaining remainingWaypoints: [GMTSTripWaypoint]?) {
  // Handle updates to the pickup, dropoff or intermediate destinations of the trip.
}

func tripModel(_: GMTCTripModel, didFailUpdateTripWithError error: Error?) {
  // Handle the error.
}

func tripModel(_: GMTCTripModel, didUpdateIntermediateDestinations intermediateDestinations: [GMTSTerminalLocation]?) {
  // Handle the intermediate destinations being updated.
}

func tripModel(_: GMTCTripModel, didUpdateActiveRouteTraffic activeRouteTraffic: GMTSTrafficData?) {
  // Handle trip active route traffic being updated.
}

Objective-C

/*
 * MapViewController.m
 */
#pragma mark - GMTCTripModelSubscriber implementation

- (void)tripModel:(GMTCTripModel *)tripModel
            didUpdateTrip:(nullable GMTSTrip *)trip
    updatedPropertyFields:(enum GMTSTripPropertyFields)updatedPropertyFields {
  // Update the UI with the new `trip` data.
  [self updateUIWithTrip:trip];
  ...
}

- (void)tripModel:(GMTCTripModel *)tripModel didUpdateTripStatus:(enum GMTSTripStatus)tripStatus {
  // Handle trip status did change.
}

- (void)tripModel:(GMTCTripModel *)tripModel
    didUpdateActiveRouteRemainingDistance:(int32_t)activeRouteRemainingDistance {
   // Handle remaining distance of active route did update.
}

- (void)tripModel:(GMTCTripModel *)tripModel
    didUpdateActiveRoute:(nullable NSArray<GMTSLatLng *> *)activeRoute {
  // Handle trip active route did update.
}

- (void)tripModel:(GMTCTripModel *)tripModel
    didUpdateVehicleLocation:(nullable GMTSVehicleLocation *)vehicleLocation {
  // Handle vehicle location did update.
}

- (void)tripModel:(GMTCTripModel *)tripModel
    didUpdatePickupLocation:(nullable GMTSTerminalLocation *)pickupLocation {
  // Handle pickup location did update.
}

- (void)tripModel:(GMTCTripModel *)tripModel
    didUpdateDropoffLocation:(nullable GMTSTerminalLocation *)dropoffLocation {
  // Handle drop off location did update.
}

- (void)tripModel:(GMTCTripModel *)tripModel didUpdatePickupETA:(NSTimeInterval)pickupETA {
  // Handle the pickup ETA did update.
}

- (void)tripModel:(GMTCTripModel *)tripModel
    didUpdateRemainingWaypoints:(nullable NSArray<GMTSTripWaypoint *> *)remainingWaypoints {
  // Handle updates to the pickup, dropoff or intermediate destinations of the trip.
}

- (void)tripModel:(GMTCTripModel *)tripModel didUpdateDropoffETA:(NSTimeInterval)dropoffETA {
  // Handle the drop off ETA did update.
}

- (void)tripModel:(GMTCTripModel *)tripModel didFailUpdateTripWithError:(nullable NSError *)error {
  // Handle the error.
}

- (void)tripModel:(GMTCTripModel *)tripModel
    didUpdateIntermediateDestinations:
        (nullable NSArray<GMTSTerminalLocation *> *)intermediateDestinations {
  // Handle the intermediate destinations being updated.
}

- (void)tripModel:(GMTCTripModel *)tripModel
    didUpdateActiveRouteTraffic:(nullable GMTSTrafficData *)activeRouteTraffic {
  // Handle trip active route traffic being updated.
}

Swift

/** MapViewController.swift */

func updatePolylineUIOptions() {
  // The polyline type that you would like to set custom UI options for.
  let customizablePolylineType = GMTCPolylineType.activeRoute

  let polylineStyleOptions = GMTCMutablePolylineStyleOptions()
  polylineStyleOptions.strokeWidth = 8.0
  polylineStyleOptions.strokeColor = .blue
  polylineStyleOptions.isVisible = true
  polylineStyleOptions.zIndex = 1000
  polylineStyleOptions.isGeodesic = true
  let coordinator = self.mapView.consumerMapStyleCoordinator
  coordinator.setPolylineStyleOptions(polylineStyleOptions, polylineType:customizablePolylineType)
}

Objective-C

/** MapViewController.m */

- (void)updatePolylineUIOptions {
  // The polyline type that you would like to set custom UI options for.
  GMTCPolylineType customizablePolylineType = GMTCPolylineTypeActiveRoute;

  GMTCMutablePolylineStyleOptions *polylineStyleOptions =
      [[GMTCMutablePolylineStyleOptions alloc] init];
  polylineStyleOptions.strokeWidth = 8.0;
  polylineStyleOptions.strokeColor = [UIColor blueColor];
  polylineStyleOptions.isVisible = YES;
  polylineStyleOptions.zIndex = 1000;
  polylineStyleOptions.isGeodesic = YES;
  [[_mapView consumerMapStyleCoordinator] setPolylineStyleOptions:polylineStyleOptions
                                                polylineType:customizablePolylineType];
}

Swift

/** MapViewController.swift */

func updateMarkerUIOptions() {
  let customizableMarkerType = GMTCCustomizableMarkerType.tripVehicle
  let markerStyleOptions = GMTCMutableMarkerStyleOptions()
  markerStyleOptions.groundAnchor = groundAnchor
  markerStyleOptions.isVisible = true
  markerStyleOptions.icon = icon
  markerStyleOptions.zIndex = 100
  markerStyleOptions.isFlat = false
  let coordinator = self.mapView.consumerMapStyleCoordinator
  coordinator.setMarkerStyleOptions(markerStyleOptions, markerType: customizableMarkerType)
}

Objective-C

/** MapViewController.m */

- (void)updateMarkerUIOptions {
  // The marker type that you would like to set custom UI options for.
  GMTCCustomizableMarkerType customizableMarkerType = GMTCCustomizableMarkerTypeTripVehicle;

  GMTCMutableMarkerStyleOptions *markerStyleOptions =
      [[GMTCMutableMarkerStyleOptions alloc] init];
  markerStyleOptions.groundAnchor = groundAnchor;
  markerStyleOptions.isVisible = YES;
  markerStyleOptions.icon = icon;
  markerStyleOptions.zIndex = 100;
  markerStyleOptions.isFlat = NO;

  [[_mapView consumerMapStyleCoordinator] setMarkerStyleOptions:markerStyleOptions markerType:customizableMarkerType];
}