Draw Route line with alternative routes on map

1<?xml version="1.0" encoding="utf-8"?>
2<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
3    xmlns:app="http://schemas.android.com/apk/res-auto"
4    xmlns:tools="http://schemas.android.com/tools"
5    android:layout_width="match_parent"
6    android:layout_height="match_parent">
7
8    <ai.nextbillion.maps.core.MapView
9        android:id="@+id/mapView"
10        android:layout_width="match_parent"
11        android:layout_height="match_parent"
12        app:nbmap_uiAttribution="false">
13    </ai.nextbillion.maps.core.MapView>
14
15    <LinearLayout
16        android:layout_width="wrap_content"
17        android:layout_height="wrap_content"
18        android:paddingLeft="10dp"
19        android:orientation="vertical"
20        android:layout_gravity="bottom">
21        <Button
22            android:id="@+id/fetchRoute"
23            android:layout_width="wrap_content"
24            android:layout_height="wrap_content"
25            android:textSize="12sp"
26            android:text="@string/draw_route"/>
27
28        <Button
29            android:id="@+id/hideRouteDuration"
30            android:layout_width="wrap_content"
31            android:layout_height="wrap_content"
32            android:textSize="12sp"
33            android:text="@string/draw_route_without"/>
34
35        <Button
36            android:id="@+id/startNav"
37            android:layout_width="wrap_content"
38            android:layout_height="wrap_content"
39            android:textSize="12sp"
40            android:text="@string/start_navigation"/>
41
42    </LinearLayout>
43
44    <ProgressBar
45        android:id="@+id/progress"
46        android:visibility="gone"
47        android:layout_width="wrap_content"
48        android:layout_height="wrap_content"
49        android:layout_gravity="center"/>
50</FrameLayout>

1package ai.nextbillion.navigation.demo.activity;
2
3import android.os.Bundle;
4import android.view.View;
5import android.widget.Button;
6import android.widget.ProgressBar;
7
8import java.util.List;
9
10import ai.nextbillion.kits.directions.models.DirectionsResponse;
11import ai.nextbillion.kits.directions.models.DirectionsRoute;
12import ai.nextbillion.kits.directions.models.RouteRequestParams;
13import ai.nextbillion.kits.geojson.Point;
14import ai.nextbillion.maps.camera.CameraUpdate;
15import ai.nextbillion.maps.camera.CameraUpdateFactory;
16import ai.nextbillion.maps.core.MapView;
17import ai.nextbillion.maps.core.NextbillionMap;
18import ai.nextbillion.maps.core.OnMapReadyCallback;
19import ai.nextbillion.maps.geometry.LatLng;
20import ai.nextbillion.maps.location.modes.RenderMode;
21import ai.nextbillion.navigation.core.routefetcher.RouteFetcher;
22import ai.nextbillion.navigation.demo.R;
23import ai.nextbillion.navigation.demo.utils.CameraAnimateUtils;
24import ai.nextbillion.navigation.ui.NavLauncherConfig;
25import ai.nextbillion.navigation.ui.NavigationLauncher;
26import ai.nextbillion.navigation.ui.camera.CameraUpdateMode;
27import ai.nextbillion.navigation.ui.camera.NavigationCameraUpdate;
28import ai.nextbillion.navigation.ui.map.NavNextbillionMap;
29import androidx.annotation.NonNull;
30import androidx.appcompat.app.AppCompatActivity;
31import retrofit2.Call;
32import retrofit2.Callback;
33import retrofit2.Response;
34
35public class DrawRouteLineWithAltActivity extends AppCompatActivity implements OnMapReadyCallback, View.OnClickListener {
36
37    private static final double DEFAULT_CAMERA_ZOOM = 14;
38
39    private Point origin = Point.fromLngLat(78.37463792413473, 17.457302037173775);
40    private Point destination = Point.fromLngLat(78.3726774987914, 17.466320809357967);
41
42    private MapView mapView;
43    private NavNextbillionMap navMap;
44
45    private Button fetchRoute;
46    private Button fetchRouteWithoutDuration;
47    private Button startNav;
48    private DirectionsRoute directionsRoute;
49    private List<DirectionsRoute> directionsRoutes;
50    private ProgressBar progress;
51    boolean showRouteDurationSymbol = true;
52    @Override
53    protected void onCreate(Bundle savedInstanceState) {
54        super.onCreate(savedInstanceState);
55        setContentView(R.layout.activity_draw_route_line_with_alt);
56        mapView = findViewById(R.id.mapView);
57        mapView.onCreate(savedInstanceState);
58        mapView.getMapAsync(this);
59        fetchRoute = findViewById(R.id.fetchRoute);
60        fetchRouteWithoutDuration = findViewById(R.id.hideRouteDuration);
61        startNav = findViewById(R.id.startNav);
62        progress = findViewById(R.id.progress);
63        fetchRoute.setOnClickListener(this);
64        startNav.setOnClickListener(this);
65        fetchRouteWithoutDuration.setOnClickListener(this);
66        fetchRouteWithoutDuration.setEnabled(false);
67        startNav.setEnabled(false);
68        fetchRoute.setEnabled(false);
69    }
70
71    @Override
72    public void onMapReady(@NonNull NextbillionMap nextbillionMap) {
73        nextbillionMap.getStyle(style -> {
74            navMap = new NavNextbillionMap(mapView, nextbillionMap);
75            CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(new LatLng(origin.latitude(),origin.longitude()), DEFAULT_CAMERA_ZOOM);
76            NavigationCameraUpdate navigationCameraUpdate = new NavigationCameraUpdate(cameraUpdate);
77            navigationCameraUpdate.setMode(CameraUpdateMode.OVERRIDE);
78            navMap.retrieveCamera().update(navigationCameraUpdate, 1000);
79            fetchRoute.setEnabled(true);
80            fetchRouteWithoutDuration.setEnabled(true);
81        });
82    }
83
84
85    @Override
86    public void onClick(View view) {
87        if (view.getId() == R.id.fetchRoute) {
88            showRouteDurationSymbol = true;
89            fetchRoute();
90        } else if (view.getId() == R.id.hideRouteDuration) {
91            showRouteDurationSymbol = false;
92            fetchRoute();
93        } else if (view.getId() == R.id.startNav) {
94            NavLauncherConfig.Builder configBuilder = NavLauncherConfig.builder(directionsRoute);
95            configBuilder.routes(directionsRoutes);
96            configBuilder.locationLayerRenderMode(RenderMode.GPS);
97            configBuilder.shouldSimulateRoute(true);
98            NavigationLauncher.startNavigation(DrawRouteLineWithAltActivity.this, configBuilder.build());
99        }
100    }
101
102    private void fetchRoute() {
103        progress.setVisibility(View.VISIBLE);
104
105        RouteRequestParams.Builder builder = RouteRequestParams.builder()
106                .origin(origin)
107                .destination(destination)
108                .alternatives(true)
109                .altCount(2)
110                .language("en")
111                .departureTime((int) (System.currentTimeMillis()/1000));
112
113        RouteFetcher.getRoute(builder.build(), new Callback<DirectionsResponse>() {
114            @Override
115            public void onResponse(Call<DirectionsResponse> call, Response<DirectionsResponse> response) {
116                progress.setVisibility(View.GONE);
117                //start navigation with the route we just fetched.
118                if (response.body() != null && !response.body().routes().isEmpty()) {
119                    directionsRoute = response.body().routes().get(0);
120                    directionsRoutes = response.body().routes();
121                    drawRouteLine();
122                    startNav.setEnabled(true);
123                }
124            }
125
126            @Override
127            public void onFailure(Call<DirectionsResponse> call, Throwable t) {
128                progress.setVisibility(View.GONE);
129            }
130        });
131    }
132
133    private void drawRouteLine() {
134        navMap.removeRoute();
135        navMap.clearMarkers();
136        navMap.showRouteDurationSymbol(showRouteDurationSymbol);
137        navMap.drawRoutes(directionsRoutes);
138        frameCameraToRoute();
139    }
140
141    private void frameCameraToRoute() {
142        int[] padding = CameraAnimateUtils.createPadding(this);
143        CameraAnimateUtils.frameCameraToBounds(navMap, directionsRoutes, padding);
144    }
145
146    @Override
147    protected void onStart() {
148        super.onStart();
149        mapView.onStart();
150    }
151
152    @Override
153    protected void onResume() {
154        super.onResume();
155        mapView.onResume();
156    }
157
158    @Override
159    protected void onPause() {
160        super.onPause();
161        mapView.onPause();
162    }
163
164    @Override
165    public void onLowMemory() {
166        super.onLowMemory();
167        mapView.onLowMemory();
168    }
169
170    @Override
171    protected void onStop() {
172        super.onStop();
173        mapView.onStop();
174    }
175
176    @Override
177    protected void onDestroy() {
178        mapView.onDestroy();
179        super.onDestroy();
180    }
181
182    @Override
183    protected void onSaveInstanceState(@NonNull Bundle outState) {
184        super.onSaveInstanceState(outState);
185        mapView.onSaveInstanceState(outState);
186    }
187
188}