This section shows how to get the vehicle ready for trips. You must complete each of the following steps before your backend can match a vehicle to a trip.
Set up listeners
After initializing the Driver SDK and creating a GMTDRidesharingDriverAPI
instance, you can set up event listeners to monitor the success or failure of
vehicle updates sent to Fleet Engine and your backend. These listeners can
trigger actions within your driver app, such as notifying the driver if
communication with your backend fails.
Listen for vehicle update events
When the driver enables location updates in the driver app, the Driver SDK
sends regular vehicle updates to Fleet Engine and the customer
backend through the GMTDVehicleReporter
class. You can have the app respond
to update events by setting up the GMTDVehicleReporterListener
protocol.
With GMTDVehicleReporterListener
, you can handle the following events:
vehicleReporter:didSucceedVehicleUpdate
Informs the Driver app that the backend services successfully received the vehicle location and state update.
vehicleReporter:didFailVehicleUpdate:withError
Informs the listener that a vehicle update failed. As long as the driver has location updates enabled, the
GMTDVehicleReporter
class continues to send the latest data to Fleet Engine.
The following examples show how to set up GMTDVehicleReporterListener
to
handle these events:
Swift
import GoogleRidesharingDriver
private let providerID = "INSERT_YOUR_PROVIDER_ID"
class SampleViewController: UIViewController, GMTDVehicleReporterListener {
private let mapView: GMSMapView
override func viewDidLoad() {
// Assumes you have implemented the sample code up to this step.
ridesharingDriverAPI.vehicleReporter.add(self)
}
func vehicleReporter(_ vehicleReporter: GMTDVehicleReporter, didSucceed vehicleUpdate: GMTDVehicleUpdate) {
// Handle update succeeded.
}
func vehicleReporter(_ vehicleReporter: GMTDVehicleReporter, didFail vehicleUpdate: GMTDVehicleUpdate, withError error: Error) {
// Handle update failed.
}
}
Objective-C
/**
* SampleViewController.h
*/
@interface SampleViewController : UIViewController<GMTDVehicleReporterListener>
@end
/**
* SampleViewController.m
*/
#import "SampleViewController.h"
#import "SampleAccessTokenProvider.h"
#import <GoogleRidesharingDriver/GoogleRidesharingDriver.h>
static NSString *const PROVIDER_ID = @"INSERT_YOUR_PROVIDER_ID";
@implementation SampleViewController {
GMSMapView *_mapView;
}
- (void)viewDidLoad {
// Assumes you have implemented the sample code up to this step.
[ridesharingDriverAPI.vehicleReporter addListener:self];
}
- (void)vehicleReporter:(GMTDVehicleReporter *)vehicleReporter didSucceedVehicleUpdate:(GMTDVehicleUpdate *)vehicleUpdate {
// Handle update succeeded.
}
- (void)vehicleReporter:(GMTDVehicleReporter *)vehicleReporter didFailVehicleUpdate:(GMTDVehicleUpdate *)vehicleUpdate withError:(NSError *)error {
// Handle update failed.
}
@end
Listen for vehicle location updates
The Navigation SDK provides location updates to the Driver SDK through the
GMSRoadSnappedLocationProvider
class. To receive those updates, you must set
up the GMTDVehicleReporter
as a listener.
Swift
import GoogleRidesharingDriver
private let providerID = "INSERT_YOUR_PROVIDER_ID"
class SampleViewController: UIViewController, GMTDVehicleReporterListener {
private let mapView: GMSMapView
override func viewDidLoad() {
// Assumes you have implemented the sample code up to this step.
if let roadSnappedLocationProvider = mapView.roadSnappedLocationProvider {
roadSnappedLocationProvider.add(ridesharingDriverAPI.vehicleReporter)
roadSnappedLocationProvider.startUpdatingLocation()
}
}
}
Objective-C
/**
* SampleViewController.h
*/
@interface SampleViewController : UIViewController<GMTDVehicleReporterListener>
@end
/**
* SampleViewController.m
*/
#import "SampleViewController.h"
#import "SampleAccessTokenProvider.h"
#import <GoogleRidesharingDriver/GoogleRidesharingDriver.h>
static NSString *const PROVIDER_ID = @"INSERT_YOUR_PROVIDER_ID";
@implementation SampleViewController {
GMSMapView *_mapView;
}
- (void)viewDidLoad {
// Assumes you have implemented the sample code up to this step.
[_mapView.roadSnappedLocationProvider addListener:ridesharingDriverAPI.vehicleReporter];
[_mapView.roadSnappedLocationProvider startUpdatingLocation];
}
@end
Enable location updates
To enable location updates, set locationTrackingEnabled
to true
on
GMTDVehicleReporter
in the driver app. Then the GMTDVehicleReporter
class
automatically sends location updates to Fleet Engine. After the Fleet Engine and
customer backend services match and assign the vehicle to a trip, the
GMTDVehicleReporter
class sends route updates automatically when the
GMSNavigator
is in navigation mode, which is when a destination is set through
setDestinations
.
The Driver SDK sets the route to match the driver's current navigation path. To
ensure accurate location updates, set the waypoint in setDestinations
to match
the destination in Fleet Engine.
The following example shows how to enable location updates:
Swift
import GoogleRidesharingDriver
private let providerID = "INSERT_YOUR_PROVIDER_ID"
class SampleViewController: UIViewController, GMTDVehicleReporterListener {
private let mapView: GMSMapView
override func viewDidLoad() {
// Assumes you have implemented the sample code up to this step.
ridesharingDriverAPI.vehicleReporter.locationTrackingEnabled = true
}
}
Objective-C
/**
* SampleViewController.m
*/
#import "SampleViewController.h"
#import "SampleAccessTokenProvider.h"
#import <GoogleRidesharingDriver/GoogleRidesharingDriver.h>
static NSString *const PROVIDER_ID = @"INSERT_YOUR_PROVIDER_ID";
@implementation SampleViewController {
GMSMapView *_mapView;
}
- (void)viewDidLoad {
// Assumes you have implemented the sample code up to this step.
ridesharingDriverAPI.vehicleReporter.locationTrackingEnabled = YES;
}
@end
Set the update interval
By default, when you set locationTrackingEnabled
to true
, the Driver SDK
sends trip and vehicle updates to Fleet Engine at a 10-second interval. You can
change the update interval with locationUpdateInterval
to a minimum update
interval of 5 seconds or a maximum of 60 seconds. More frequent updates may
result in slower requests and errors.
Set the vehicle state to online
After you enable location updates, set the vehicle state to ONLINE
to make the
vehicle available for search queries in Fleet Engine.
The following examples show how to set the vehicle state to ONLINE
. For
details, see updateVehicleState
.
Swift
import GoogleRidesharingDriver
private let providerID = "INSERT_YOUR_PROVIDER_ID"
class SampleViewController: UIViewController, GMTDVehicleReporterListener {
private let mapView: GMSMapView
override func viewDidLoad() {
// Assumes you have implemented the sample code up to this step.
ridesharingDriverAPI.vehicleReporter.update(.online)
}
}
Objective-C
#import "SampleViewController.h"
#import "SampleAccessTokenProvider.h"
#import <GoogleRidesharingDriver/GoogleRidesharingDriver.h>
static NSString *const PROVIDER_ID = @"INSERT_YOUR_PROVIDER_ID";
@implementation SampleViewController {
GMSMapView *_mapView;
}
- (void)viewDidLoad {
// Assumes you have implemented the sample code up to this step.
[ridesharingDriverAPI.vehicleReporter
updateVehicleState:GMTDVehicleStateOnline];
}
@end