Show/Hide the Swift code to get route information.
/**Copyright2017GoogleInc.Allrightsreserved.**LicensedundertheApacheLicense,Version2.0(the"License");*youmaynotusethisfileexceptincompliancewiththeLicense.*YoumayobtainacopyoftheLicenseat**http://www.apache.org/licenses/LICENSE-2.0**Unlessrequiredbyapplicablelaworagreedtoinwriting,software*distributedundertheLicenseisdistributedonan"AS IS"BASIS,*WITHOUTWARRANTIESORCONDITIONSOFANYKIND,eitherexpressorimplied.*SeetheLicenseforthespecificlanguagegoverningpermissionsand*limitationsundertheLicense.*/importGoogleNavigationimportUIKitclassViewController:UIViewController{varmapView:GMSMapView!varlocationManager:CLLocationManager!overridefuncloadView(){locationManager=CLLocationManager()letcamera=GMSCameraPosition.camera(withLatitude:47.67,longitude:-122.20,zoom:14)mapView=GMSMapView.map(withFrame:CGRect.zero,camera:camera)//Showthetermsandconditions.letcompanyName="Ride Sharing Co."GMSNavigationServices.showTermsAndConditionsDialogIfNeeded(withCompanyName:companyName){termsAcceptedinguardtermsAcceptedelse{//Handlethecasewhentheuserrejectsthetermsandconditions.return}//Enablenavigationaftertheuseracceptstheterms.self.mapView.isNavigationEnabled=true//Requestauthorizationtouselocationservices.self.locationManager.requestAlwaysAuthorization()}self.view=mapViewmakeButtons()}//Createarouteandstartguidance.funcstartNav(){vardestinations=[GMSNavigationWaypoint]()destinations.append(GMSNavigationWaypoint.init(placeID:"ChIJnUYTpNASkFQR_gSty5kyoUk",title:"PCC Natural Market")!)destinations.append(GMSNavigationWaypoint.init(placeID:"ChIJJ326ROcSkFQRBfUzOL2DSbo",title:"Marina Park")!)mapView.navigator?.setDestinations(destinations){routeStatusinguardrouteStatus==.OKelse{print("Handle route statuses that are not OK.")return}self.mapView.navigator?.isGuidanceActive=trueself.mapView.cameraMode=.followingself.mapView.locationSimulator?.simulateLocationsAlongExistingRoute()}mapView.roadSnappedLocationProvider?.startUpdatingLocation()}funcgetTimeToNextDestination(){ifletnavigator=mapView.navigator{lettime=navigator.timeToNextDestinationletminutes=floor(time/60)letseconds=round(time-minutes*60)print("Time to next destination: \(minutes):\(seconds)")}}funcgetDistanceToNextDestination(){ifletnavigator=mapView.navigator{letdistance=navigator.distanceToNextDestinationletmiles=distance*0.00062137print("Distance to next destination: \(miles) miles.")}}funcgetCurrentRouteLeg(){ifletnavigator=mapView.navigator{letcurrentLeg=navigator.currentRouteLegletnextDestination=currentLeg?.destinationWaypoint?.title??"Not Available"letlat=currentLeg?.destinationCoordinate.latitude.description??"Not Available"letlng=currentLeg?.destinationCoordinate.longitude.description??"Not Available"print("Destination: \(nextDestination) at (\(lat),\(lng)")}}funcgetTraveledPath(){ifletnavigator=mapView.navigator{letlatestPath=navigator.traveledPathiflatestPath.count() > 0{letbegin:CLLocationCoordinate2D=latestPath.coordinate(at:0)letcurrent:CLLocationCoordinate2D=latestPath.coordinate(at:latestPath.count()-1)print("Path from (\(begin.latitude),\(begin.longitude)) to (\(current.latitude),\(current.longitude))")}}}//Addsomebuttonstotheview.funcmakeButtons(){//Startnavigation.letnavButton=UIButton(frame:CGRect(x:5,y:150,width:200,height:35))navButton.backgroundColor=.bluenavButton.alpha=0.5navButton.setTitle("Start navigation",for:.normal)navButton.addTarget(self,action:#selector(startNav), for: .touchUpInside)self.mapView.addSubview(navButton)//Getthetimetothenextdestination.lettimeButton=UIButton(frame:CGRect(x:5,y:190,width:200,height:35))timeButton.backgroundColor=.bluetimeButton.alpha=0.5timeButton.setTitle("Time to next destination",for:.normal)timeButton.addTarget(self,action:#selector(getTimeToNextDestination), for: .touchUpInside)self.mapView.addSubview(timeButton)//Getthedistancetothenextdestination.letdistanceButton=UIButton(frame:CGRect(x:5,y:230,width:200,height:35))distanceButton.backgroundColor=.bluedistanceButton.alpha=0.5distanceButton.setTitle("Distance to next destination",for:.normal)distanceButton.addTarget(self,action:#selector(getDistanceToNextDestination), for: .touchUpInside)self.mapView.addSubview(distanceButton)//Getthecurrentrouteleg.letrouteButton=UIButton(frame:CGRect(x:5,y:270,width:200,height:35))routeButton.backgroundColor=.bluerouteButton.alpha=0.5routeButton.setTitle("Get current route leg",for:.normal)routeButton.addTarget(self,action:#selector(getCurrentRouteLeg), for: .touchUpInside)self.mapView.addSubview(routeButton)//Getthemostrecentlytraveledpath.letpathButton=UIButton(frame:CGRect(x:5,y:310,width:200,height:35))pathButton.backgroundColor=.bluepathButton.alpha=0.5pathButton.setTitle("Get traveled path",for:.normal)pathButton.addTarget(self,action:#selector(getTraveledPath), for: .touchUpInside)self.mapView.addSubview(pathButton)}}
Show/Hide the Objective-C code to get route information.
/* * Copyright 2017 Google Inc. All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */#import "ViewController.h"@importGoogleNavigation;@interfaceViewController()@end@implementationViewController{GMSMapView*_mapView;CLLocationManager*_locationManager;}-(void)loadView{_locationManager=[[CLLocationManageralloc]init];GMSCameraPosition*camera=[GMSCameraPositioncameraWithLatitude:47.67longitude:-122.20zoom:14];_mapView=[GMSMapViewmapWithFrame:CGRectZerocamera:camera];// Show the terms and conditions.NSString*companyName=@"Ride Sharing Co.";[GMSNavigationServicesshowTermsAndConditionsDialogIfNeededWithCompanyName:companyNamecallback:^(BOOLtermsAccepted){if(termsAccepted){// Enable navigation if the user accepts the terms._mapView.navigationEnabled=YES;// Request authorization to use location services.[_locationManagerrequestAlwaysAuthorization];}else{// Handle the case when the user rejects the terms and conditions.}}];self.view=_mapView;[selfmakeButtons];}// Create a route and start guidance.-(void)startNav{NSArray<GMSNavigationWaypoint*>*destinations=@[[[GMSNavigationWaypointalloc]initWithPlaceID:@"ChIJnUYTpNASkFQR_gSty5kyoUk"title:@"PCC Natural Market"],[[GMSNavigationWaypointalloc]initWithPlaceID:@"ChIJJ326ROcSkFQRBfUzOL2DSbo"title:@"Marina Park"]];[_mapView.navigatorsetDestinations:destinationscallback:^(GMSRouteStatusrouteStatus){_mapView.navigator.guidanceActive=YES;_mapView.cameraMode=GMSNavigationCameraModeFollowing;[_mapView.locationSimulatorsimulateLocationsAlongExistingRoute];}];[_mapView.roadSnappedLocationProviderstartUpdatingLocation];}-(void)getTimeToNextDestination{NSTimeIntervaltime=_mapView.navigator.timeToNextDestination;intminutes=floor(time/60);intseconds=round(time-minutes*60);NSLog(@"%@",[NSStringstringWithFormat:@"Time to next destination: %i:%i.",minutes,seconds]);}-(void)getDistanceToNextDestination{CLLocationDistancedistance=_mapView.navigator.distanceToNextDestination;doublemiles=distance*0.00062137;NSLog(@"%@",[NSStringstringWithFormat:@"Distance to next destination: %.2f.",miles]);}-(void)getCurrentRouteLeg{GMSRouteLeg*currentSegment=_mapView.navigator.currentRouteLeg;NSString*nextDestination=currentSegment.destinationWaypoint.title;CLLocationDegreeslat=currentSegment.destinationCoordinate.latitude;CLLocationDegreeslng=currentSegment.destinationCoordinate.longitude;NSLog(@"%@",[NSStringstringWithFormat:@"%@, %f/%f",nextDestination,lat,lng]);}-(void)getTraveledPath{GMSPath*latestPath=_mapView.navigator.traveledPath;if(latestPath.count > 0){CLLocationCoordinate2Dbegin=[latestPathcoordinateAtIndex:0];CLLocationCoordinate2Dcurrent=[latestPathcoordinateAtIndex:latestPath.count-1];NSLog(@"Path from %f/%f to %f/%f",begin.latitude,begin.longitude,current.latitude,current.longitude);}}#pragma mark - Buttons and things// Add some buttons to the view.-(void)makeButtons{// Start navigation.UIButton*navButton=[UIButtonbuttonWithType:UIButtonTypeCustom];[navButtonaddTarget:selfaction:@selector(startNav)forControlEvents:UIControlEventTouchUpInside];[navButtonsetTitle:@"Start navigation"forState:UIControlStateNormal];[navButtonsetBackgroundColor:[UIColorblueColor]];[navButtonsetAlpha:0.5];navButton.frame=CGRectMake(5.0,150.0,200.0,35.0);[_mapViewaddSubview:navButton];// Get the time to the next destination.UIButton*timeButton=[UIButtonbuttonWithType:UIButtonTypeCustom];[timeButtonaddTarget:selfaction:@selector(getTimeToNextDestination)forControlEvents:UIControlEventTouchUpInside];[timeButtonsetTitle:@"Time to next destination"forState:UIControlStateNormal];[timeButtonsetBackgroundColor:[UIColorblueColor]];[timeButtonsetAlpha:0.5];timeButton.frame=CGRectMake(5.0,190.0,200.0,35.0);[_mapViewaddSubview:timeButton];// Get the distance to the next destination.UIButton*distanceButton=[UIButtonbuttonWithType:UIButtonTypeCustom];[distanceButtonaddTarget:selfaction:@selector(getDistanceToNextDestination)forControlEvents:UIControlEventTouchUpInside];[distanceButtonsetTitle:@"Distance to next destination"forState:UIControlStateNormal];[distanceButtonsetBackgroundColor:[UIColorblueColor]];[distanceButtonsetAlpha:0.5];distanceButton.frame=CGRectMake(5.0,230.0,200.0,35.0);[_mapViewaddSubview:distanceButton];// Get the current route leg.UIButton*routeButton=[UIButtonbuttonWithType:UIButtonTypeCustom];[routeButtonaddTarget:selfaction:@selector(getCurrentRouteLeg)forControlEvents:UIControlEventTouchUpInside];[routeButtonsetTitle:@"Get current route leg"forState:UIControlStateNormal];[routeButtonsetBackgroundColor:[UIColorblueColor]];[routeButtonsetAlpha:0.5];routeButton.frame=CGRectMake(5.0,270.0,200.0,35.0);[_mapViewaddSubview:routeButton];// Get the most recently traveled path.UIButton*pathButton=[UIButtonbuttonWithType:UIButtonTypeCustom];[pathButtonaddTarget:selfaction:@selector(getTraveledPath)forControlEvents:UIControlEventTouchUpInside];[pathButtonsetTitle:@"Get current route leg"forState:UIControlStateNormal];[pathButtonsetBackgroundColor:[UIColorblueColor]];[pathButtonsetAlpha:0.5];pathButton.frame=CGRectMake(5.0,310.0,200.0,35.0);[_mapViewaddSubview:pathButton];}@end
Getting time to the next destination
To get the time to the next destination, call timeToNextDestination().
This returns an NSTimeInterval value. The following example shows
logging the time to the next destination:
Getting traffic conditions to the next destination
To get a value indicating the flow of traffic to the next destination, call
delayCategoryToNextDestination.
This parameter returns GMSNavigationDelayCategory. The following
example shows evaluating the result and logging a traffic message:
To get the most recently traveled path, call traveledPath.
This returns a GMSPath
instance which has been simplified to remove redundant points (for example
turning consecutive colinear points into a single line segment). This path is
empty until guidance is started. The following example shows getting the most
recently traveled path: