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.
앱을 테스트, 디버깅, 시연하기 위해 경로를 따라 차량의 진행 상황을 시뮬레이션하려면 getSimulator()를 사용합니다.
앱을 빌드하고 실행합니다.
코드 보기
< > 탐색 활동의 자바 코드를 표시하거나 숨깁니다.
package com.example.navsdkmultidestination;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.Toast;
import androidx.annotation.NonNull;
import com.google.android.libraries.navigation.ArrivalEvent;
import com.google.android.libraries.navigation.Camera;
import com.google.android.libraries.navigation.ListenableResultFuture;
import com.google.android.libraries.navigation.LocationEvent;
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) 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);
}
}
});
}
/**
* 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(LocationEvent locationEvent) {
displayMessage("onLocationUpdated: Navigation engine has provided a new"
+ " road-snapped location: "
+ locationEvent.getLocation().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 대화형 지도 및 세부 경로 안내 등 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 경유지에 대해 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 경유지를 설정합니다. (탐색기가 경로를 표시할 수 없는 장소 ID를 사용하는 경우 오류가 발생할 수 있습니다. 이 튜토리얼의 샘플 앱은 오스트레일리아의 경유지에 장소 ID를 사용합니다. 다른 장소 ID 가져오기에 대한
내용은 아래 참고사항을 참고하세요.) 경로를 계산한 후 SupportNavigationFragment는 각 경유지의 마커와 함께 지도에 경로를 나타내는 다중선을 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 실행하기
컴퓨터에 Android 기기를 연결합니다. instructions에 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 힌트
내비게이션을 사용하려면 사용자가 Google 내비게이션 서비스 약관에 동의해야 합니다. 이 수락은 한 번만 필요합니다. 기본적으로 SDK는 탐색기를 처음 호출할 때 수락을 요청하는 메시지를 표시합니다. 원하는 경우 앱의 UX 흐름 초기(예: 가입 또는 로그인 단계)에서 showTermsAndConditionsDialog()를 사용하여 Navigation 서비스 약관 대화상자를 트리거할 수 있습니다.
위도/경도 목적지가 아닌 장소 ID를 사용하여 경유지를 초기화하면 내비게이션 품질 및 ETA 정확성이 크게 향상됩니다.
이 샘플은 특정 장소 ID에서 경유지를 가져옵니다. 장소 ID를 가져오는 다른 방법은 다음과 같습니다.