Navigation SDK는 현재 일부 고객만 사용할 수 있습니다. 자세한 내용은 영업팀에 문의하세요.
새로운 지도 스타일 지정 기능이 곧 Google Maps Platform에 도입될 예정입니다. 이번 지도 스타일 지정 업데이트에는 새로운 기본 색상 팔레트가 추가되었으며 지도 환경 및 사용성이 개선되었습니다. 모든 지도 스타일은 2025년 3월에 자동으로 업데이트됩니다. 사용 가능 여부 및 이전에 선택한 방법에 대한 자세한 내용은 Google Maps Platform의 새 지도 스타일을 참고하세요.
getSimulator()를 사용하여 경로를 따라 차량의 진행 상황을 시뮬레이션하여 앱을 테스트, 디버그, 데모합니다.
앱을 빌드하고 실행합니다.
코드 보기
탐색 활동의 Java 코드를 표시하거나 숨깁니다.
package com.example.navsdkmultidestination;
import android.content.pm.PackageManager;
import android.location.Location;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import com.google.android.gms.maps.GoogleMap.CameraPerspective;
import com.google.android.libraries.navigation.ArrivalEvent;
import com.google.android.libraries.navigation.ListenableResultFuture;
import com.google.android.libraries.navigation.NavigationApi;
import com.google.android.libraries.navigation.Navigator;
import com.google.android.libraries.navigation.RoadSnappedLocationProvider;
import com.google.android.libraries.navigation.SimulationOptions;
import com.google.android.libraries.navigation.SupportNavigationFragment;
import com.google.android.libraries.navigation.TimeAndDistance;
import com.google.android.libraries.navigation.Waypoint;
import java.util.ArrayList;
import java.util.List;
/**
* An activity that displays a map and a navigation UI, guiding the user from their current location
* to multiple destinations, also known as waypoints.
*/
public class NavigationActivityMultiDestination extends AppCompatActivity {
private static final String TAG = NavigationActivityMultiDestination.class.getSimpleName();
private static final String DISPLAY_BOTH = "both";
private static final String DISPLAY_TOAST = "toast";
private static final String DISPLAY_LOG = "log";
private Navigator mNavigator;
private RoadSnappedLocationProvider mRoadSnappedLocationProvider;
private SupportNavigationFragment mNavFragment;
private final List<Waypoint> mWaypoints = new ArrayList<>();
private Navigator.ArrivalListener mArrivalListener;
private Navigator.RouteChangedListener mRouteChangedListener;
private Navigator.RemainingTimeOrDistanceChangedListener mRemainingTimeOrDistanceChangedListener;
private RoadSnappedLocationProvider.LocationListener mLocationListener;
private Bundle mSavedInstanceState;
private static final String KEY_JOURNEY_IN_PROGRESS = "journey_in_progress";
private boolean mJourneyInProgress = false;
// Set fields for requesting location permission.
private static final int PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION = 1;
private boolean mLocationPermissionGranted;
/**
* Sets up the navigator when the activity is created.
*
* @param savedInstanceState The activity state bundle.
*/
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Save the navigator state, used to determine whether a journey is in progress.
mSavedInstanceState = savedInstanceState;
if (mSavedInstanceState != null && mSavedInstanceState.containsKey(KEY_JOURNEY_IN_PROGRESS)) {
mJourneyInProgress = (mSavedInstanceState.getInt(KEY_JOURNEY_IN_PROGRESS) != 0);
}
setContentView(R.layout.activity_main);
// Initialize the Navigation SDK.
initializeNavigationSdk();
}
/** Releases navigation listeners when the activity is destroyed. */
@Override
protected void onDestroy() {
super.onDestroy();
if ((mJourneyInProgress) && (this.isFinishing())) {
mNavigator.removeArrivalListener(mArrivalListener);
mNavigator.removeRouteChangedListener(mRouteChangedListener);
mNavigator.removeRemainingTimeOrDistanceChangedListener(
mRemainingTimeOrDistanceChangedListener);
if (mRoadSnappedLocationProvider != null) {
mRoadSnappedLocationProvider.removeLocationListener(mLocationListener);
}
displayMessage("OnDestroy: Released navigation listeners.", DISPLAY_LOG);
}
}
/** Saves the state of the app when the activity is paused. */
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
if (mJourneyInProgress) {
outState.putInt(KEY_JOURNEY_IN_PROGRESS, 1);
} else {
outState.putInt(KEY_JOURNEY_IN_PROGRESS, 0);
}
}
/**
* Starts the Navigation SDK and sets the camera to follow the device's location. Calls the
* navigateToPlaces() method when the navigator is ready.
*/
private void initializeNavigationSdk() {
/*
* Request location permission, so that we can get the location of the
* device. The result of the permission request is handled by a callback,
* onRequestPermissionsResult.
*/
if (ContextCompat.checkSelfPermission(
this.getApplicationContext(), android.Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
mLocationPermissionGranted = true;
} else {
ActivityCompat.requestPermissions(
this,
new String[] {android.Manifest.permission.ACCESS_FINE_LOCATION},
PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION);
}
if (!mLocationPermissionGranted) {
displayMessage(
"Error loading Navigation SDK: " + "The user has not granted location permission.",
DISPLAY_BOTH);
return;
}
// Get a navigator.
NavigationApi.getNavigator(
this,
new NavigationApi.NavigatorListener() {
/** Sets up the navigation UI when the navigator is ready for use. */
@Override
public void onNavigatorReady(Navigator navigator) {
displayMessage("Navigator ready.", DISPLAY_BOTH);
mNavigator = navigator;
mNavFragment =
(SupportNavigationFragment)
getSupportFragmentManager().findFragmentById(R.id.navigation_fragment);
// Set the camera to follow the device location with 'TILTED' driving view.
mNavFragment.getMapAsync(
googleMap -> googleMap.followMyLocation(CameraPerspective.TILTED));
// Navigate to the specified places.
navigateToPlaces();
}
/**
* Handles errors from the Navigation SDK.
*
* @param errorCode The error code returned by the navigator.
*/
@Override
public void onError(@NavigationApi.ErrorCode int errorCode) {
switch (errorCode) {
case NavigationApi.ErrorCode.NOT_AUTHORIZED:
displayMessage(
"Error loading Navigation SDK: Your API key is "
+ "invalid or not authorized to use the Navigation SDK.",
DISPLAY_BOTH);
break;
case NavigationApi.ErrorCode.TERMS_NOT_ACCEPTED:
displayMessage(
"Error loading Navigation SDK: User did not accept "
+ "the Navigation Terms of Use.",
DISPLAY_BOTH);
break;
case NavigationApi.ErrorCode.NETWORK_ERROR:
displayMessage("Error loading Navigation SDK: Network error.", DISPLAY_BOTH);
break;
case NavigationApi.ErrorCode.LOCATION_PERMISSION_MISSING:
displayMessage(
"Error loading Navigation SDK: Location permission " + "is missing.",
DISPLAY_BOTH);
break;
default:
displayMessage("Error loading Navigation SDK: " + errorCode, DISPLAY_BOTH);
}
}
});
}
/** Requests directions from the user's current location to a list of waypoints. */
private void navigateToPlaces() {
// Set up a waypoint for each place that we want to go to.
createWaypoint("ChIJq6qq6jauEmsRJAf7FjrKnXI", "Sydney Star");
createWaypoint("ChIJ3S-JXmauEmsRUcIaWtf4MzE", "Sydney Opera House");
createWaypoint("ChIJLwgLFGmuEmsRzpDhHQuyyoU", "Sydney Conservatorium of Music");
// If this journey is already in progress, no need to restart navigation.
// This can happen when the user rotates the device, or sends the app to the background.
if (mSavedInstanceState != null
&& mSavedInstanceState.containsKey(KEY_JOURNEY_IN_PROGRESS)
&& mSavedInstanceState.getInt(KEY_JOURNEY_IN_PROGRESS) == 1) {
return;
}
// Create a future to await the result of the asynchronous navigator task.
ListenableResultFuture<Navigator.RouteStatus> pendingRoute =
mNavigator.setDestinations(mWaypoints);
// Define the action to perform when the SDK has determined the route.
pendingRoute.setOnResultListener(
new ListenableResultFuture.OnResultListener<Navigator.RouteStatus>() {
@Override
public void onResult(Navigator.RouteStatus code) {
switch (code) {
case OK:
mJourneyInProgress = true;
// Hide the toolbar to maximize the navigation UI.
if (getActionBar() != null) {
getActionBar().hide();
}
// Register some listeners for navigation events.
registerNavigationListeners();
// Display the time and distance to each waypoint.
displayTimesAndDistances();
// Enable voice audio guidance (through the device speaker).
mNavigator.setAudioGuidance(Navigator.AudioGuidance.VOICE_ALERTS_AND_GUIDANCE);
// Simulate vehicle progress along the route for demo/debug builds.
if (BuildConfig.DEBUG) {
mNavigator
.getSimulator()
.simulateLocationsAlongExistingRoute(
new SimulationOptions().speedMultiplier(5));
}
// Start turn-by-turn guidance along the current route.
mNavigator.startGuidance();
break;
// Handle error conditions returned by the navigator.
case NO_ROUTE_FOUND:
displayMessage("Error starting navigation: No route found.", DISPLAY_BOTH);
break;
case NETWORK_ERROR:
displayMessage("Error starting navigation: Network error.", DISPLAY_BOTH);
break;
case ROUTE_CANCELED:
displayMessage("Error starting navigation: Route canceled.", DISPLAY_BOTH);
break;
default:
displayMessage("Error starting navigation: " + String.valueOf(code), DISPLAY_BOTH);
}
}
});
}
/**
* Creates a waypoint from a given place ID and title.
*
* @param placeId The ID of the place to be converted to a waypoint.
* @param title A descriptive title for the waypoint.
*/
private void createWaypoint(String placeId, String title) {
try {
mWaypoints.add(Waypoint.builder().setPlaceIdString(placeId).setTitle(title).build());
} catch (Waypoint.UnsupportedPlaceIdException e) {
displayMessage(
"Error starting navigation: Place ID is not supported: " + placeId, DISPLAY_BOTH);
}
}
/** Displays the calculated travel time and distance to each waypoint. */
private void displayTimesAndDistances() {
List<TimeAndDistance> timesAndDistances = mNavigator.getTimeAndDistanceList();
int leg = 1;
String message = "You're on your way!";
for (TimeAndDistance timeAndDistance : timesAndDistances) {
message =
message
+ "\nRoute leg: "
+ leg++
+ ": Travel time (seconds): "
+ timeAndDistance.getSeconds()
+ ". Distance (meters): "
+ timeAndDistance.getMeters();
}
displayMessage(message, DISPLAY_BOTH);
}
/**
* Registers some event listeners to show a message and take other necessary steps when specific
* navigation events occur.
*/
private void registerNavigationListeners() {
mArrivalListener =
new Navigator.ArrivalListener() {
@Override
public void onArrival(ArrivalEvent arrivalEvent) {
displayMessage(
"onArrival: You've arrived at a waypoint: "
+ mNavigator.getCurrentRouteSegment().getDestinationWaypoint().getTitle(),
DISPLAY_BOTH);
// Start turn-by-turn guidance for the next leg of the route.
if (arrivalEvent.isFinalDestination()) {
displayMessage("onArrival: You've arrived at the final destination.", DISPLAY_BOTH);
} else {
mNavigator.continueToNextDestination();
mNavigator.startGuidance();
}
}
};
// Listens for arrival at a waypoint.
mNavigator.addArrivalListener(mArrivalListener);
mRouteChangedListener =
new Navigator.RouteChangedListener() {
@Override
public void onRouteChanged() {
displayMessage(
"onRouteChanged: The driver's route has changed. Current waypoint: "
+ mNavigator.getCurrentRouteSegment().getDestinationWaypoint().getTitle(),
DISPLAY_LOG);
}
};
// Listens for changes in the route.
mNavigator.addRouteChangedListener(mRouteChangedListener);
// Listens for road-snapped location updates.
mRoadSnappedLocationProvider = NavigationApi.getRoadSnappedLocationProvider(getApplication());
mLocationListener =
new RoadSnappedLocationProvider.LocationListener() {
@Override
public void onLocationChanged(Location location) {
displayMessage(
"onLocationUpdated: Navigation engine has provided a new"
+ " road-snapped location: "
+ location.toString(),
DISPLAY_LOG);
}
@Override
public void onRawLocationUpdate(Location location) {
displayMessage(
"onLocationUpdated: Navigation engine has provided a new"
+ " raw location: "
+ location.toString(),
DISPLAY_LOG);
}
};
if (mRoadSnappedLocationProvider != null) {
mRoadSnappedLocationProvider.addLocationListener(mLocationListener);
} else {
displayMessage("ERROR: Failed to get a location provider", DISPLAY_LOG);
}
mRemainingTimeOrDistanceChangedListener =
new Navigator.RemainingTimeOrDistanceChangedListener() {
@Override
public void onRemainingTimeOrDistanceChanged() {
displayMessage(
"onRemainingTimeOrDistanceChanged: Time or distance estimate" + " has changed.",
DISPLAY_LOG);
}
};
// Listens for changes in time or distance.
mNavigator.addRemainingTimeOrDistanceChangedListener(
60, 100, mRemainingTimeOrDistanceChangedListener);
}
/** Handles the result of the request for location permissions. */
@Override
public void onRequestPermissionsResult(
int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
mLocationPermissionGranted = false;
switch (requestCode) {
case PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION:
{
// If request is canceled, the result arrays are empty.
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
mLocationPermissionGranted = true;
}
}
}
}
/**
* Shows a message on screen and in the log. Used when something goes wrong.
*
* @param errorMessage The message to display.
*/
private void displayMessage(String errorMessage, String displayMedium) {
if (displayMedium.equals(DISPLAY_BOTH) || displayMedium.equals(DISPLAY_TOAST)) {
Toast.makeText(this, errorMessage, Toast.LENGTH_LONG).show();
}
if (displayMedium.equals(DISPLAY_BOTH) || displayMedium.equals(DISPLAY_LOG)) {
Log.d(TAG, errorMessage);
}
}
}
탐색 프래그먼트 추가
SupportNavigationFragment는 양방향 지도 및 세부 경로 안내를 비롯한 탐색의 시각적 출력을 표시하는 UI 구성요소입니다. 아래와 같이 XML 레이아웃 파일에서 프래그먼트를 선언할 수 있습니다.
NavigationApi.getNavigator(this, new NavigationApi.NavigatorListener() {
/**
* Sets up the navigation UI when the navigator is ready for use.
*/
@Override
public void onNavigatorReady(Navigator navigator) {
displayMessage("Navigator ready.", DISPLAY_BOTH);
mNavigator = navigator;
mNavFragment = (SupportNavigationFragment) getFragmentManager()
.findFragmentById(R.id.navigation_fragment);
// Set the camera to follow the device location with 'TILTED' driving view.
mNavFragment.getCamera().followMyLocation(Camera.Perspective.TILTED);
// Navigate to the specified places.
navigateToPlaces();
}
/**
* Handles errors from the Navigation SDK.
* @param errorCode The error code returned by the navigator.
*/
@Override
public void onError(@NavigationApi.ErrorCode int errorCode) {
switch (errorCode) {
case NavigationApi.ErrorCode.NOT_AUTHORIZED:
displayMessage("Error loading Navigation SDK: Your API key is "
+ "invalid or not authorized to use the Navigation SDK.",
DISPLAY_BOTH);
break;
case NavigationApi.ErrorCode.TERMS_NOT_ACCEPTED:
displayMessage("Error loading Navigation SDK: User did not accept "
+ "the Navigation Terms of Use.", DISPLAY_BOTH);
break;
case NavigationApi.ErrorCode.NETWORK_ERROR:
displayMessage("Error loading Navigation SDK: Network error.",
DISPLAY_BOTH);
break;
case NavigationApi.ErrorCode.LOCATION_PERMISSION_MISSING:
displayMessage("Error loading Navigation SDK: Location permission "
+ "is missing.", DISPLAY_BOTH);
break;
default:
displayMessage("Error loading Navigation SDK: " + errorCode,
DISPLAY_BOTH);
}
}
});
private void createWaypoint(String placeId, String title) {
try {
mWaypoints.add(
Waypoint.builder()
.setPlaceIdString(placeId)
.setTitle(title)
.build()
);
} catch (Waypoint.UnsupportedPlaceIdException e) {
displayMessage("Error starting navigation: Place ID is not supported: " + placeId,
DISPLAY_BOTH);
}
}
각 중간 지점까지의 계산된 이동 시간과 거리를 표시하는 메서드를 추가합니다.
private void displayTimesAndDistances() {
List<TimeAndDistance> timesAndDistances = mNavigator.getTimeAndDistanceList();
int leg = 1;
String message = "You're on your way!";
for (TimeAndDistance timeAndDistance : timesAndDistances) {
message = message + "\nRoute leg: " + leg++
+ ": Travel time (seconds): " + timeAndDistance.getSeconds()
+ ". Distance (meters): " + timeAndDistance.getMeters();
}
displayMessage(message, DISPLAY_BOTH);
}
이 여정의 모든 중간 지점을 설정합니다. (탐색기에서 경로를 표시할 수 없는 장소 ID를 사용하면 오류가 발생할 수 있습니다. 이 튜토리얼의 샘플 앱은 오스트레일리아의 중간 지점에 장소 ID를 사용합니다. 다른 장소 ID 가져오기에 관한 아래의 메모를 참고하세요.) 경로를 계산한 후 SupportNavigationFragment는 지도에 경로를 나타내는 다중선을 표시하고 각 경유지에 마커를 표시합니다.
private void navigateToPlaces() {
// Set up a waypoint for each place that we want to go to.
createWaypoint("ChIJq6qq6jauEmsRJAf7FjrKnXI", "Sydney Star");
createWaypoint("ChIJ3S-JXmauEmsRUcIaWtf4MzE", "Sydney Opera House");
createWaypoint("ChIJLwgLFGmuEmsRzpDhHQuyyoU", "Sydney Conservatorium of Music");
// If this journey is already in progress, no need to restart navigation.
// This can happen when the user rotates the device, or sends the app to the background.
if (mSavedInstanceState != null
&& mSavedInstanceState.containsKey(KEY_JOURNEY_IN_PROGRESS)
&& mSavedInstanceState.getInt(KEY_JOURNEY_IN_PROGRESS) == 1) {
return;
}
// Create a future to await the result of the asynchronous navigator task.
ListenableResultFuture<Navigator.RouteStatus> pendingRoute =
mNavigator.setDestinations(mWaypoints);
// Define the action to perform when the SDK has determined the route.
pendingRoute.setOnResultListener(
new ListenableResultFuture.OnResultListener<Navigator.RouteStatus>() {
@Override
public void onResult(Navigator.RouteStatus code) {
switch (code) {
case OK:
mJourneyInProgress = true;
// Hide the toolbar to maximize the navigation UI.
if (getActionBar() != null) {
getActionBar().hide();
}
// Register some listeners for navigation events.
registerNavigationListeners();
// Display the time and distance to each waypoint.
displayTimesAndDistances();
// Enable voice audio guidance (through the device speaker).
mNavigator.setAudioGuidance(
Navigator.AudioGuidance.VOICE_ALERTS_AND_GUIDANCE);
// Simulate vehicle progress along the route for demo/debug builds.
if (BuildConfig.DEBUG) {
mNavigator.getSimulator().simulateLocationsAlongExistingRoute(
new SimulationOptions().speedMultiplier(5));
}
// Start turn-by-turn guidance along the current route.
mNavigator.startGuidance();
break;
// Handle error conditions returned by the navigator.
case NO_ROUTE_FOUND:
displayMessage("Error starting navigation: No route found.",
DISPLAY_BOTH);
break;
case NETWORK_ERROR:
displayMessage("Error starting navigation: Network error.",
DISPLAY_BOTH);
break;
case ROUTE_CANCELED:
displayMessage("Error starting navigation: Route canceled.",
DISPLAY_BOTH);
break;
default:
displayMessage("Error starting navigation: "
+ String.valueOf(code), DISPLAY_BOTH);
}
}
});
}
앱 빌드 및 실행
컴퓨터에 Android 기기를 연결합니다. 안내에 따라
Android 기기에서 개발자 옵션을 사용 설정하고
기기를 감지하도록 시스템을 구성합니다. (또는
Android Virtual Device(AVD) Manager를
사용하여
가상 기기를 구성할 수 있습니다. 에뮬레이터를 선택할 때 Google API가 포함된 이미지를 선택해야 합니다.)
Android 스튜디오에서 Run 메뉴 옵션(또는 재생 버튼 아이콘)을 클릭합니다.
표시되는 메시지에 따라 기기를 선택합니다.
사용자 환경 개선을 위한 팁
사용자가 Google 내비게이션 서비스 약관에 동의해야 내비게이션을 사용할 수 있습니다. 동의는 한 번만 하면 됩니다. 기본적으로 SDK는 탐색기가 처음 호출될 때 동의 메시지를 표시합니다. 원하는 경우 showTermsAndConditionsDialog()를 사용하여 가입 또는 로그인 중에 앱의 UX 흐름 초기에 내비게이션 서비스 약관 대화상자를 트리거할 수 있습니다.
도착지 경도/위도 대신 장소 ID를 사용하여 중간 지점을 초기화하면 내비게이션 품질과 도착 예정 시간 정확성이 크게 개선됩니다.
이 샘플은 특정 장소 ID에서 웨이포인트를 가져옵니다. 장소 ID를 가져오는 다른 방법은 다음과 같습니다.