In dieser Anleitung erfahren Sie, wie Sie Ihre App so einrichten, dass sie Zeiten, Entfernungen und Routenabschnitte für die aktuelle Route abrufen kann.
Übersicht
Informationen zur aktuellen Route erhalten Sie über die entsprechende Property der navigator-Instanz:
Code
Swift-Code zum Abrufen von Routeninformationen ein-/ausblenden
/*
* 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 GoogleNavigation
import UIKit
class ViewController: UIViewController {
var mapView: GMSMapView!
var locationManager: CLLocationManager!
override func loadView() {
locationManager = CLLocationManager()
let camera = GMSCameraPosition.camera(withLatitude: 47.67, longitude: -122.20, zoom: 14)
mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)
// Show the terms and conditions.
let companyName = "Ride Sharing Co."
GMSNavigationServices.showTermsAndConditionsDialogIfNeeded(
withCompanyName: companyName
) { termsAccepted in
guard termsAccepted else {
// Handle the case when the user rejects the terms and conditions.
return
}
// Enable navigation after the user accepts the terms.
self.mapView.isNavigationEnabled = true
// Request authorization to use location services.
self.locationManager.requestAlwaysAuthorization()
}
self.view = mapView
makeButtons()
}
// Create a route and start guidance.
func startNav() {
var destinations = [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) { routeStatus in
guard routeStatus == .OK else {
print("Handle route statuses that are not OK.")
return
}
self.mapView.navigator?.isGuidanceActive = true
self.mapView.cameraMode = .following
self.mapView.locationSimulator?.simulateLocationsAlongExistingRoute()
}
mapView.roadSnappedLocationProvider?.startUpdatingLocation()
}
func getTimeToNextDestination() {
if let navigator = mapView.navigator {
let time = navigator.timeToNextDestination
let minutes = floor(time / 60)
let seconds = round(time - minutes * 60)
print("Time to next destination: \(minutes):\(seconds)")
}
}
func getDistanceToNextDestination() {
if let navigator = mapView.navigator {
let distance = navigator.distanceToNextDestination
let miles = distance * 0.00062137
print("Distance to next destination: \(miles) miles.")
}
}
func getCurrentRouteLeg() {
if let navigator = mapView.navigator {
let currentLeg = navigator.currentRouteLeg
let nextDestination = currentLeg?.destinationWaypoint?.title ?? "Not Available"
let lat = currentLeg?.destinationCoordinate.latitude.description ?? "Not Available"
let lng = currentLeg?.destinationCoordinate.longitude.description ?? "Not Available"
print("Destination: \(nextDestination) at (\(lat),\(lng)")
}
}
func getTraveledPath() {
if let navigator = mapView.navigator {
let latestPath = navigator.traveledPath
if latestPath.count() > 0 {
let begin: CLLocationCoordinate2D = latestPath.coordinate(at: 0)
let current: CLLocationCoordinate2D = latestPath.coordinate(at: latestPath.count() - 1)
print(
"Path from (\(begin.latitude),\(begin.longitude)) to (\(current.latitude),\(current.longitude))"
)
}
}
}
// Add some buttons to the view.
func makeButtons() {
// Start navigation.
let navButton = UIButton(frame: CGRect(x: 5, y: 150, width: 200, height: 35))
navButton.backgroundColor = .blue
navButton.alpha = 0.5
navButton.setTitle("Start navigation", for: .normal)
navButton.addTarget(self, action: #selector(startNav), for: .touchUpInside)
self.mapView.addSubview(navButton)
// Get the time to the next destination.
let timeButton = UIButton(frame: CGRect(x: 5, y: 190, width: 200, height: 35))
timeButton.backgroundColor = .blue
timeButton.alpha = 0.5
timeButton.setTitle("Time to next destination", for: .normal)
timeButton.addTarget(self, action: #selector(getTimeToNextDestination), for: .touchUpInside)
self.mapView.addSubview(timeButton)
// Get the distance to the next destination.
let distanceButton = UIButton(frame: CGRect(x: 5, y: 230, width: 200, height: 35))
distanceButton.backgroundColor = .blue
distanceButton.alpha = 0.5
distanceButton.setTitle("Distance to next destination", for: .normal)
distanceButton.addTarget(
self, action: #selector(getDistanceToNextDestination), for: .touchUpInside)
self.mapView.addSubview(distanceButton)
// Get the current route leg.
let routeButton = UIButton(frame: CGRect(x: 5, y: 270, width: 200, height: 35))
routeButton.backgroundColor = .blue
routeButton.alpha = 0.5
routeButton.setTitle("Get current route leg", for: .normal)
routeButton.addTarget(self, action: #selector(getCurrentRouteLeg), for: .touchUpInside)
self.mapView.addSubview(routeButton)
// Get the most recently traveled path.
let pathButton = UIButton(frame: CGRect(x: 5, y: 310, width: 200, height: 35))
pathButton.backgroundColor = .blue
pathButton.alpha = 0.5
pathButton.setTitle("Get traveled path", for: .normal)
pathButton.addTarget(self, action: #selector(getTraveledPath), for: .touchUpInside)
self.mapView.addSubview(pathButton)
}
}
Objective-C-Code zum Abrufen von Routeninformationen ein-/ausblenden
/*
* 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"
@import GoogleNavigation;
@interface ViewController ()
@end
@implementation ViewController {
GMSMapView *_mapView;
CLLocationManager *_locationManager;
}
- (void)loadView {
_locationManager = [[CLLocationManager alloc] init];
GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:47.67
longitude:-122.20
zoom:14];
_mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
// Show the terms and conditions.
NSString *companyName = @"Ride Sharing Co.";
[GMSNavigationServices
showTermsAndConditionsDialogIfNeededWithCompanyName:companyName
callback:^(BOOL termsAccepted) {
if (termsAccepted) {
// Enable navigation if the user accepts the terms.
_mapView.navigationEnabled = YES;
// Request authorization to use location services.
[_locationManager requestAlwaysAuthorization];
} else {
// Handle the case when the user rejects the terms and conditions.
}
}];
self.view = _mapView;
[self makeButtons];
}
// Create a route and start guidance.
- (void)startNav {
NSArray<GMSNavigationWaypoint *> *destinations =
@[[[GMSNavigationWaypoint alloc] initWithPlaceID:@"ChIJnUYTpNASkFQR_gSty5kyoUk"
title:@"PCC Natural Market"],
[[GMSNavigationWaypoint alloc] initWithPlaceID:@"ChIJJ326ROcSkFQRBfUzOL2DSbo"
title:@"Marina Park"]];
[_mapView.navigator setDestinations:destinations
callback:^(GMSRouteStatus routeStatus){
_mapView.navigator.guidanceActive = YES;
_mapView.cameraMode = GMSNavigationCameraModeFollowing;
[_mapView.locationSimulator simulateLocationsAlongExistingRoute];
}];
[_mapView.roadSnappedLocationProvider startUpdatingLocation];
}
- (void)getTimeToNextDestination {
NSTimeInterval time = _mapView.navigator.timeToNextDestination;
int minutes = floor(time/60);
int seconds = round(time - minutes * 60);
NSLog(@"%@", [NSString stringWithFormat:@"Time to next destination: %i:%i.", minutes, seconds]);
}
- (void)getDistanceToNextDestination {
CLLocationDistance distance = _mapView.navigator.distanceToNextDestination;
double miles = distance * 0.00062137;
NSLog(@"%@", [NSString stringWithFormat:@"Distance to next destination: %.2f.", miles]);
}
- (void)getCurrentRouteLeg {
GMSRouteLeg *currentSegment = _mapView.navigator.currentRouteLeg;
NSString *nextDestination = currentSegment.destinationWaypoint.title;
CLLocationDegrees lat = currentSegment.destinationCoordinate.latitude;
CLLocationDegrees lng = currentSegment.destinationCoordinate.longitude;
NSLog(@"%@", [NSString stringWithFormat:@"%@, %f/%f", nextDestination, lat, lng]);
}
- (void)getTraveledPath {
GMSPath *latestPath = _mapView.navigator.traveledPath;
if (latestPath.count > 0) {
CLLocationCoordinate2D begin = [latestPath coordinateAtIndex:0];
CLLocationCoordinate2D current = [latestPath coordinateAtIndex: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 = [UIButton buttonWithType:UIButtonTypeCustom];
[navButton addTarget:self
action:@selector(startNav)
forControlEvents:UIControlEventTouchUpInside];
[navButton setTitle:@"Start navigation" forState:UIControlStateNormal];
[navButton setBackgroundColor:[UIColor blueColor]];
[navButton setAlpha:0.5];
navButton.frame = CGRectMake(5.0, 150.0, 200.0, 35.0);
[_mapView addSubview:navButton];
// Get the time to the next destination.
UIButton *timeButton = [UIButton buttonWithType:UIButtonTypeCustom];
[timeButton addTarget:self
action:@selector(getTimeToNextDestination)
forControlEvents:UIControlEventTouchUpInside];
[timeButton setTitle:@"Time to next destination" forState:UIControlStateNormal];
[timeButton setBackgroundColor:[UIColor blueColor]];
[timeButton setAlpha:0.5];
timeButton.frame = CGRectMake(5.0, 190.0, 200.0, 35.0);
[_mapView addSubview:timeButton];
// Get the distance to the next destination.
UIButton *distanceButton = [UIButton buttonWithType:UIButtonTypeCustom];
[distanceButton addTarget:self
action:@selector(getDistanceToNextDestination)
forControlEvents:UIControlEventTouchUpInside];
[distanceButton setTitle:@"Distance to next destination" forState:UIControlStateNormal];
[distanceButton setBackgroundColor:[UIColor blueColor]];
[distanceButton setAlpha:0.5];
distanceButton.frame = CGRectMake(5.0, 230.0, 200.0, 35.0);
[_mapView addSubview:distanceButton];
// Get the current route leg.
UIButton *routeButton = [UIButton buttonWithType:UIButtonTypeCustom];
[routeButton addTarget:self
action:@selector(getCurrentRouteLeg)
forControlEvents:UIControlEventTouchUpInside];
[routeButton setTitle:@"Get current route leg" forState:UIControlStateNormal];
[routeButton setBackgroundColor:[UIColor blueColor]];
[routeButton setAlpha:0.5];
routeButton.frame = CGRectMake(5.0, 270.0, 200.0, 35.0);
[_mapView addSubview:routeButton];
// Get the most recently traveled path.
UIButton *pathButton = [UIButton buttonWithType:UIButtonTypeCustom];
[pathButton addTarget:self
action:@selector(getTraveledPath)
forControlEvents:UIControlEventTouchUpInside];
[pathButton setTitle:@"Get current route leg" forState:UIControlStateNormal];
[pathButton setBackgroundColor:[UIColor blueColor]];
[pathButton setAlpha:0.5];
pathButton.frame = CGRectMake(5.0, 310.0, 200.0, 35.0);
[_mapView addSubview:pathButton];
}
@end
Zeit bis zum nächsten Ziel abrufen
Rufen Sie timeToNextDestination() auf, um die Zeit bis zum nächsten Ziel abzurufen.
Dadurch wird ein NSTimeInterval-Wert zurückgegeben. Im folgenden Beispiel wird die Zeit bis zum nächsten Ziel protokolliert:
Swift
if let navigator = mapView.navigator {
let time = navigator.timeToNextDestination
let minutes = floor(time/60)
let seconds = round(time - minutes * 60)
NSLog("Time to next destination: %.0f:%.0f", minutes, seconds)
}
Objective-C
NSTimeInterval time = _mapView.navigator.timeToNextDestination;
int minutes = floor(time/60);
int seconds = round(time - minutes * 60);
NSLog(@"%@", [NSString stringWithFormat:@"Time to next destination: %i:%i.", minutes, seconds]);
Entfernung zum nächsten Ziel abrufen
Rufen Sie distanceToNextDestination() auf, um die Entfernung zum nächsten Ziel abzurufen.
Dadurch wird ein CLLocationDistance-Wert zurückgegeben. Die Einheiten werden in Metern angegeben.
Swift
if let navigator = mapView.navigator {
let distance = navigator.distanceToNextDestination
let miles = distance * 0.00062137
NSLog("Distance to next destination: %.2f miles.", miles)
}
Objective-C
CLLocationDistance distance = _mapView.navigator.distanceToNextDestination;
double miles = distance * 0.00062137;
NSLog(@"%@", [NSString stringWithFormat:@"Distance to next destination: %.2f.", miles]);
Verkehrslage bis zum nächsten Ziel abrufen
Rufen Sie
delayCategoryToNextDestination auf, um einen Wert abzurufen, der den Verkehrsfluss bis zum nächsten Ziel angibt.
Dieser Parameter gibt GMSNavigationDelayCategory zurück. Im folgenden Beispiel wird das Ergebnis ausgewertet und eine Verkehrsmeldung protokolliert:
Swift
if let navigator = mapView.navigator {
// insert sample for evaluating traffic value
let delay = navigator.delayCategoryToNextDestination
let traffic = "unavailable"
switch delay {
case .noData:
traffic = "unavailable"
case .heavy:
traffic = "heavy"
case .medium:
traffic = "moderate"
case .light:
traffic = "light"
default:
traffic = "unavailable"
}
print("Traffic is \(traffic).")
}
Objective-C
GMSNavigationDelayCategory delay = mapView.navigator.delayCategoryToNextDestination;
NSString *traffic = @"";
switch (delayCategory) {
case GMSNavigationDelayCategoryNoData:
traffic = @"No Data";
break;
case GMSNavigationDelayCategoryHeavy:
traffic = @"Heavy";
break;
case GMSNavigationDelayCategoryMedium:
traffic = @"Medium";
break;
case GMSNavigationDelayCategoryLight:
traffic = @"Light";
break;
default:
NSLog(@"Invalid delay category: %zd", delayCategory);
}
NSLog(@"%@", [NSString stringWithFormat:@"Traffic is %@.", traffic]);
Rufen Sie currentRouteLeg auf, um Informationen zum aktuellen Routenabschnitt abzurufen.
Dadurch wird eine GMSRouteLeg-Instanz zurückgegeben, aus der Sie Folgendes abrufen können:
- Das Ziel des Routenabschnitts
- Die letzte Koordinate des Routenabschnitts
- Der Pfad mit den Koordinaten, aus denen der Routenabschnitt besteht
Im folgenden Beispiel werden der Titel und die Koordinaten (Breitengrad/Längengrad) für den nächsten Routenabschnitt protokolliert:
Swift
if let navigator = mapView.navigator {
let currentLeg = navigator.currentRouteLeg
let nextDestination = currentLeg?.destinationWaypoint?.title
let lat = currentLeg?.destinationCoordinate.latitude.description
let lng = currentLeg?.destinationCoordinate.longitude.description
NSLog(nextDestination! + ", " + lat! + "/" + lng!)
}
Objective-C
GMSRouteLeg *currentSegment = _mapView.navigator.currentRouteLeg;
NSString *nextDestination = currentSegment.destinationWaypoint.title;
CLLocationDegrees lat = currentSegment.destinationCoordinate.latitude;
CLLocationDegrees lng = currentSegment.destinationCoordinate.longitude;
NSLog(@"%@", [NSString stringWithFormat:@"%@, %f/%f", nextDestination, lat, lng]);
Zuletzt zurückgelegten Weg abrufen
Rufen Sie
traveledPath auf, um den zuletzt zurückgelegten Weg abzurufen.
Dadurch wird eine
GMSPath
-Instanz zurückgegeben, die vereinfacht wurde, um redundante Punkte zu entfernen (z. B.
werden aufeinanderfolgende kollineare Punkte in ein einzelnes Liniensegment umgewandelt). Dieser Pfad ist leer, bis die Navigation gestartet wird. Im folgenden Beispiel wird der zuletzt zurückgelegte Weg abgerufen:
Swift
if let navigator = mapView.navigator {
let latestPath = navigator.traveledPath
if latestPath.count() > 0 {
let begin: CLLocationCoordinate2D = latestPath.coordinate(at: 0)
let current: CLLocationCoordinate2D = latestPath.coordinate(at: latestPath.count() - 1)
print("Path from (\(begin.latitude),\(begin.longitude)) to (\(current.latitude),\(current.longitude))")
}
}
Objective-C
GMSPath *latestPath = mapView.navigator.traveledPath;
if (latestPath.count > 0) {
CLLocationCoordinate2D begin = [latestPath coordinateAtIndex:0];
CLLocationCoordinate2D current = [latestPath coordinateAtIndex:latestPath.count - 1];
NSLog(@"Path from %f/%f to %f/%f",
begin.latitude,
begin.longitude,
current.latitude,
current.longitude);
}