Examples

Location camera options

activity_location_component_camera_options
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
xmlns:mapbox="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.mapbox.mapboxsdk.maps.MapView
android:id="@+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="0dp"
mapbox:mapbox_cameraZoom="10"
app:layout_constraintBottom_toTopOf="@+id/linearLayout"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<LinearLayout
android:id="@+id/linearLayout"
style="?android:attr/buttonBarStyle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="@color/colorPrimaryDark"
android:orientation="horizontal"
android:weightSum="4"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
tools:layout_constraintBottom_creator="1"
tools:layout_constraintLeft_creator="1"
tools:layout_constraintRight_creator="1">
<TextView
android:id="@+id/tv_mode"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight=".75"
android:gravity="center"
android:text="Mode:"
android:textColor="@color/mapboxWhite"
android:textSize="18sp"
android:textStyle="bold" />
<Button
android:id="@+id/button_location_mode"
style="?android:attr/buttonBarButtonStyle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1.25"
android:gravity="center"
android:text="Normal"
android:textColor="@android:color/white" />
<TextView
android:id="@+id/tv_tracking"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight=".85"
android:gravity="center"
android:text="Tracking:"
android:textColor="@color/mapboxWhite"
android:textSize="18sp"
android:textStyle="bold" />
<Button
android:id="@+id/button_location_tracking"
style="?android:attr/buttonBarButtonStyle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1.15"
android:gravity="center"
android:text="None"
android:textColor="@android:color/white" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
LocationComponentCameraOptionsActivity
package com.mapbox.mapboxandroiddemo.examples.location;
import android.annotation.SuppressLint;
import android.location.Location;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.ListPopupWindow;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Toast;
import com.mapbox.android.core.location.LocationEngineRequest;
import com.mapbox.android.core.permissions.PermissionsListener;
import com.mapbox.android.core.permissions.PermissionsManager;
import com.mapbox.mapboxandroiddemo.R;
import com.mapbox.mapboxsdk.Mapbox;
import com.mapbox.mapboxsdk.camera.CameraUpdateFactory;
import com.mapbox.mapboxsdk.location.LocationComponent;
import com.mapbox.mapboxsdk.location.LocationComponentActivationOptions;
import com.mapbox.mapboxsdk.location.OnCameraTrackingChangedListener;
import com.mapbox.mapboxsdk.location.OnLocationCameraTransitionListener;
import com.mapbox.mapboxsdk.location.OnLocationClickListener;
import com.mapbox.mapboxsdk.location.modes.CameraMode;
import com.mapbox.mapboxsdk.location.modes.RenderMode;
import com.mapbox.mapboxsdk.maps.MapView;
import com.mapbox.mapboxsdk.maps.MapboxMap;
import com.mapbox.mapboxsdk.maps.OnMapReadyCallback;
import com.mapbox.mapboxsdk.maps.Style;
import java.util.ArrayList;
import java.util.List;
/**
* Use LocationComponent camera options to customize the map camera's behavior. More information
* can be found at https://docs.mapbox.com/android/maps/overview/location-component and in
* {@link CameraMode}.
*/
public class LocationComponentCameraOptionsActivity extends AppCompatActivity implements OnMapReadyCallback,
OnLocationClickListener, OnCameraTrackingChangedListener {
private static final String SAVED_STATE_CAMERA = "saved_state_camera";
private static final String SAVED_STATE_RENDER = "saved_state_render";
private static final String SAVED_STATE_LOCATION = "saved_state_location";
private MapView mapView;
private Button locationModeBtn;
private Button locationTrackingBtn;
private PermissionsManager permissionsManager;
private LocationComponent locationComponent;
private MapboxMap mapboxMap;
private Location lastLocation;
@CameraMode.Mode
private int cameraMode = CameraMode.TRACKING;
@RenderMode.Mode
private int renderMode = RenderMode.NORMAL;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Mapbox access token is configured here. This needs to be called either in your application
// object or in the same activity which contains the mapview.
Mapbox.getInstance(this, getString(R.string.access_token));
// This contains the MapView in XML and needs to be called after the access token is configured.
setContentView(R.layout.activity_location_component_camera_options);
mapView = findViewById(R.id.mapView);
// Check and use saved instance state in case of device rotation
if (savedInstanceState != null) {
cameraMode = savedInstanceState.getInt(SAVED_STATE_CAMERA);
renderMode = savedInstanceState.getInt(SAVED_STATE_RENDER);
lastLocation = savedInstanceState.getParcelable(SAVED_STATE_LOCATION);
}
mapView.onCreate(savedInstanceState);
// Check for (and request) the device location permission
if (PermissionsManager.areLocationPermissionsGranted(this)) {
mapView.getMapAsync(this);
} else {
permissionsManager = new PermissionsManager(new PermissionsListener() {
@Override
public void onExplanationNeeded(List<String> permissionsToExplain) {
Toast.makeText(LocationComponentCameraOptionsActivity.this,
R.string.user_location_permission_explanation, Toast.LENGTH_LONG).show();
}
@Override
public void onPermissionResult(boolean granted) {
if (granted) {
mapView.getMapAsync(LocationComponentCameraOptionsActivity.this);
} else {
finish();
}
}
});
permissionsManager.requestLocationPermissions(this);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
permissionsManager.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
@SuppressLint("MissingPermission")
@Override
public void onMapReady(@NonNull MapboxMap mapboxMap) {
this.mapboxMap = mapboxMap;
mapboxMap.setStyle(Style.MAPBOX_STREETS, style -> {
setModeButtonListeners();
// Retrieve and customize the Maps SDK's LocationComponent
locationComponent = mapboxMap.getLocationComponent();
locationComponent.activateLocationComponent(
LocationComponentActivationOptions
.builder(this, style)
.useDefaultLocationEngine(true)
.locationEngineRequest(new LocationEngineRequest.Builder(750)
.setFastestInterval(750)
.setPriority(LocationEngineRequest.PRIORITY_HIGH_ACCURACY)
.build())
.build());
locationComponent.setLocationComponentEnabled(true);
locationComponent.addOnLocationClickListener(this);
locationComponent.addOnCameraTrackingChangedListener(this);
locationComponent.setCameraMode(cameraMode);
setRendererMode(renderMode);
locationComponent.forceLocationUpdate(lastLocation);
});
}
@SuppressLint("MissingPermission")
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mapView.onSaveInstanceState(outState);
// Save LocationComponent-related settings to use once device rotation is finished
outState.putInt(SAVED_STATE_CAMERA, cameraMode);
outState.putInt(SAVED_STATE_RENDER, renderMode);
if (locationComponent != null) {
outState.putParcelable(SAVED_STATE_LOCATION, locationComponent.getLastKnownLocation());
}
}
/**
* Listen to and use a tap on the LocationComponent
*/
@Override
public void onLocationComponentClick() {
Toast.makeText(this, getString(R.string.clicked_on_location_component), Toast.LENGTH_LONG).show();
}
/**
* Adjust the LocationComponent's image to one of the preset options.
*
* @param mode desired normal (small blue circle laid on top of larger white dot),
* compass (arrow point representing the phone's bearing), or
* GPS (blue arrow within a white circle).
*/
private void setRendererMode(@RenderMode.Mode int mode) {
renderMode = mode;
locationComponent.setRenderMode(mode);
if (mode == RenderMode.NORMAL) {
locationModeBtn.setText(getString(R.string.normal));
} else if (mode == RenderMode.COMPASS) {
locationModeBtn.setText(getString(R.string.compass));
} else if (mode == RenderMode.GPS) {
locationModeBtn.setText(getString(R.string.gps));
}
}
private void showModeListDialog() {
List<String> modes = new ArrayList<>();
modes.add(getString(R.string.normal));
modes.add(getString(R.string.compass));
modes.add(getString(R.string.gps));
ArrayAdapter<String> profileAdapter = new ArrayAdapter<>(this,
android.R.layout.simple_list_item_1, modes);
ListPopupWindow listPopup = new ListPopupWindow(this);
listPopup.setAdapter(profileAdapter);
listPopup.setAnchorView(locationModeBtn);
listPopup.setOnItemClickListener((parent, itemView, position, id) -> {
String selectedMode = modes.get(position);
locationModeBtn.setText(selectedMode);
if (selectedMode.contentEquals(getString(R.string.normal))) {
setRendererMode(RenderMode.NORMAL);
} else if (selectedMode.contentEquals(getString(R.string.compass))) {
setRendererMode(RenderMode.COMPASS);
} else if (selectedMode.contentEquals(getString(R.string.gps))) {
setRendererMode(RenderMode.GPS);
}
listPopup.dismiss();
});
listPopup.show();
}
/**
* Instruct the map camera to disregard the LocationComponent or to
* follow the device location in a certain way.
* <p>
* NONE = No camera tracking.
* NONE_COMPASS = Camera does not track location, but does track compass bearing.
* NONE_GPS = Camera does not track location, but does track GPS {@link Location} bearing.
* TRACKING = Camera tracks the user location.
* TRACKING_COMPASS = Camera tracks the user location, with bearing provided by a compass.
* TRACKING_GPS = Camera tracks the user location, with bearing provided by a
* normalized {@link Location#getBearing()}.
* TRACKING_GPS_NORTH = Camera tracks the user location, with bearing always set to north (0).
*/
private void showTrackingListDialog() {
List<String> trackingTypes = new ArrayList<>();
trackingTypes.add(getString(R.string.none));
trackingTypes.add(getString(R.string.none_compass));
trackingTypes.add(getString(R.string.none_gps));
trackingTypes.add(getString(R.string.tracking));
trackingTypes.add(getString(R.string.tracking_compass));
trackingTypes.add(getString(R.string.tracking_gps));
trackingTypes.add(getString(R.string.tracking_gps_north));
ArrayAdapter<String> profileAdapter = new ArrayAdapter<>(this,
android.R.layout.simple_list_item_1, trackingTypes);
ListPopupWindow listPopup = new ListPopupWindow(this);
listPopup.setAdapter(profileAdapter);
listPopup.setAnchorView(locationTrackingBtn);
listPopup.setOnItemClickListener((parent, itemView, position, id) -> {
String selectedTrackingType = trackingTypes.get(position);
locationTrackingBtn.setText(selectedTrackingType);
if (selectedTrackingType.contentEquals(getString(R.string.none))) {
setCameraTrackingMode(CameraMode.NONE);
} else if (selectedTrackingType.contentEquals(getString(R.string.none_compass))) {
setCameraTrackingMode(CameraMode.NONE_COMPASS);
} else if (selectedTrackingType.contentEquals(getString(R.string.none_gps))) {
setCameraTrackingMode(CameraMode.NONE_GPS);
} else if (selectedTrackingType.contentEquals(getString(R.string.tracking))) {
setCameraTrackingMode(CameraMode.TRACKING);
} else if (selectedTrackingType.contentEquals(getString(R.string.tracking_compass))) {
setCameraTrackingMode(CameraMode.TRACKING_COMPASS);
} else if (selectedTrackingType.contentEquals(getString(R.string.tracking_gps))) {
setCameraTrackingMode(CameraMode.TRACKING_GPS);
} else if (selectedTrackingType.contentEquals(getString(R.string.tracking_gps_north))) {
setCameraTrackingMode(CameraMode.TRACKING_GPS_NORTH);
}
listPopup.dismiss();
});
listPopup.show();
}
private void setCameraTrackingMode(@CameraMode.Mode int mode) {
locationComponent.setCameraMode(mode, new OnLocationCameraTransitionListener() {
@Override
public void onLocationCameraTransitionFinished(@CameraMode.Mode int cameraMode) {
if (mode != CameraMode.NONE) {
locationComponent.zoomWhileTracking(15, 750, new MapboxMap.CancelableCallback() {
@Override
public void onCancel() {
// No impl
}
@Override
public void onFinish() {
locationComponent.tiltWhileTracking(45);
}
});
} else {
mapboxMap.easeCamera(CameraUpdateFactory.tiltTo(0));
}
}
@Override
public void onLocationCameraTransitionCanceled(@CameraMode.Mode int cameraMode) {
// No impl
}
});
}
@Override
public void onCameraTrackingDismissed() {
locationTrackingBtn.setText(getString(R.string.none));
}
@Override
public void onCameraTrackingChanged(int currentMode) {
this.cameraMode = currentMode;
if (currentMode == CameraMode.NONE) {
locationTrackingBtn.setText(getString(R.string.none));
} else if (currentMode == CameraMode.NONE_COMPASS) {
locationTrackingBtn.setText(getString(R.string.none_compass));
} else if (currentMode == CameraMode.NONE_GPS) {
locationTrackingBtn.setText(getString(R.string.none_gps));
} else if (currentMode == CameraMode.TRACKING) {
locationTrackingBtn.setText(getString(R.string.tracking));
} else if (currentMode == CameraMode.TRACKING_COMPASS) {
locationTrackingBtn.setText(getString(R.string.tracking_compass));
} else if (currentMode == CameraMode.TRACKING_GPS) {
locationTrackingBtn.setText(getString(R.string.tracking_gps));
} else if (currentMode == CameraMode.TRACKING_GPS_NORTH) {
locationTrackingBtn.setText(getString(R.string.tracking_gps_north));
}
}
private void setModeButtonListeners() {
locationModeBtn = findViewById(R.id.button_location_mode);
locationModeBtn.setOnClickListener(v -> {
if (locationComponent == null) {
return;
}
showModeListDialog();
});
locationTrackingBtn = findViewById(R.id.button_location_tracking);
locationTrackingBtn.setOnClickListener(v -> {
if (locationComponent == null) {
return;
}
showTrackingListDialog();
});
}
@Override
protected void onStart() {
super.onStart();
mapView.onStart();
}
@Override
protected void onResume() {
super.onResume();
mapView.onResume();
}
@Override
protected void onPause() {
super.onPause();
mapView.onPause();
}
@Override
protected void onStop() {
super.onStop();
mapView.onStop();
}
@Override
protected void onDestroy() {
super.onDestroy();
mapView.onDestroy();
}
@Override
public void onLowMemory() {
super.onLowMemory();
mapView.onLowMemory();
}
}
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