android.location.Location Java Examples

@Test
public void testGps_Satellites_NoFix() throws IOException {
    // Set up fake device
    LoopbackUartDevice gpsDevice = new LoopbackUartDevice();
    NmeaGpsModule gpsModule = new NmeaGpsModule(gpsDevice, DEFAULT_BAUD, DEFAULT_ACCURACY, null);

    GpsModuleCallback mockCallback = Mockito.mock(GpsModuleCallback.class);
    gpsModule.setGpsModuleCallback(mockCallback);

    // Inject NMEA test data
    byte[] buffer = NmeaSampleData.SAMPLE_SAT_VIEW_NO_FIX;
    gpsDevice.write(buffer, buffer.length);

    // Verify callback results
    Mockito.verify(mockCallback, times(6)).onNmeaMessage(anyString());
    Mockito.verify(mockCallback, never()).onGpsTimeUpdate(anyLong());
    Mockito.verify(mockCallback, never()).onGpsLocationUpdate(any(Location.class));

    ArgumentCaptor<GnssStatus> args = ArgumentCaptor.forClass(GnssStatus.class);
    Mockito.verify(mockCallback, times(1)).onGpsSatelliteStatus(args.capture());
    GnssStatus status = args.getValue();
    assertEquals(NmeaSampleData.EXPECTED_SAT_COUNT, status.getSatelliteCount());
}
 

private void onLocationUnavailable() {
    if (foundContextBot != null && foundContextBot.bot_inline_geo) {
        lastKnownLocation = new Location("network");
        lastKnownLocation.setLatitude(-1000);
        lastKnownLocation.setLongitude(-1000);
        searchForContextBotResults(true, foundContextBot, searchingContextQuery, "");
    }
}
 

private void writeTrack(Location loc, boolean continous, boolean geoid, float smoothspeed, float avgspeed)
{
	boolean needsWrite = false;
	if (lastLocation != null)
	{
		distanceFromLastWriting += loc.distanceTo(lastLocation);
	}
	if (lastWritenLocation != null)
		timeFromLastWriting = loc.getTime() - lastWritenLocation.getTime();

	if (lastLocation == null || lastWritenLocation == null || !continous || timeFromLastWriting > maxTime || distanceFromLastWriting > minDistance && timeFromLastWriting > minTime)
	{
		needsWrite = true;
	}

	lastLocation = loc;

	if (needsWrite)
		writeLocation(loc, continous);
}
 

protected RectF getMyLocationMapDrawingBounds(MapView mv, Location lastFix, RectF reuse) {
    mv.getProjection().toMapPixels(mLatLng, mMapCoords);
    reuse = getDrawingBounds(mMapCoords, lastFix, reuse);
    // Add in the accuracy circle if enabled
    if (mDrawAccuracyEnabled) {
        final float radius = (float) Math.ceil(
                lastFix.getAccuracy() / (float) Projection.groundResolution(
                        lastFix.getLatitude(), mMapView.getZoomLevel())
        );
        RectF accuracyRect =
                new RectF(mMapCoords.x - radius, mMapCoords.y - radius, mMapCoords.x + radius,
                        mMapCoords.y + radius);
        final float strokeWidth = (float) Math.ceil(
                mCirclePaint.getStrokeWidth() == 0 ? 1 : mCirclePaint.getStrokeWidth());
        accuracyRect.inset(-strokeWidth, -strokeWidth);
        reuse.union(accuracyRect);
    }

    return reuse;
}
 

public static double angle(double lat1, double long1, double lat2,
        double long2) {

	Location loc1 = new Location("network");
	loc1.setLatitude(lat1);
	loc1.setLongitude(long1);
	Location loc2 = new Location("network");
	loc2.setLatitude(lat2);
	loc2.setLongitude(long2);

    float brng = loc1.bearingTo(loc2);
    
    float readyForEnglish  = normalizeDegree(brng);
    
    log("cbscience bearingTo " + brng + ", eng " + readyForEnglish + " " + englishDirection(readyForEnglish));
    return readyForEnglish;
}
 

@Test
public void deleteLocationById() {
    Context ctx = InstrumentationRegistry.getTargetContext();
    SQLiteDatabase db = new SQLiteOpenHelper(ctx).getWritableDatabase();
    SQLiteLocationDAO dao = new SQLiteLocationDAO(db);

    BackgroundLocation bgLocation = new BackgroundLocation(new Location("fake"));
    Collection<BackgroundLocation> locations = null;

    Long locationId = dao.persistLocation(bgLocation);

    locations = dao.getAllLocations();
    Assert.assertEquals(1, locations.size());

    dao.deleteLocationById(locationId);

    locations = dao.getValidLocations();
    Assert.assertEquals(0, locations.size());
}
 

LocationTracker(Context context, LocationUSourceData data,
               @NonNull PendingIntent event_positive,
               @NonNull PendingIntent event_negative) {
    super(context, data, event_positive, event_negative);
    locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);

    criteria = LocationUtils.getCriteria();

    @SuppressLint("MissingPermission") Location lastKnownLocation = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
    if (LocationUtils.isAcceptable(data, lastKnownLocation)) {
        newSatisfiedState(LocationUtils.isInside(data, lastKnownLocation));
    } else {
        @SuppressLint("MissingPermission") Location lastKnownLocationGps = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
        if (LocationUtils.isAcceptable(data, lastKnownLocationGps)) {
            newSatisfiedState(LocationUtils.isInside(data, lastKnownLocationGps));
        }
    }
}
 

@Override
public void onLocationChanged( Location location )
{
  Set<GeoFence> oldFences, newFences, currFence;

  synchronized( this )
  {
    initFencesToCallback();
    this.location = location;
    oldFences = pointFences;
    currFence = findGeoPointsFence( new GeoPoint( location.getLatitude(), location.getLongitude() ), fencesToCallback.keySet() );
    newFences = new HashSet<GeoFence>( currFence );

    newFences.removeAll( oldFences );
    oldFences.removeAll( currFence );

    callOnEnter( newFences );
    callOnStay( newFences );
    callOnExit( oldFences );
    cancelOnStay( oldFences );

    pointFences = currFence;
  }
}
 

@Test
public void shouldNotDrawAnyPointsIfCancelled() throws Exception {
    ArrayList<Location> locations = new ArrayList<Location>();
    stub(box.contains(locationToGeoPoint(outsideBefore1))).toReturn(false);
    stub(box.contains(locationToGeoPoint(outsideBefore2))).toReturn(false);
    stub(box.contains(locationToGeoPoint(inside1))).toReturn(true);
    stub(box.contains(locationToGeoPoint(inside2))).toReturn(true);
    locations.add(outsideBefore1);
    locations.add(outsideBefore2);
    locations.add(inside1);
    locations.add(inside2);
    task.cancel(true);
    task.execute(locations);
    Robolectric.runUiThreadTasksIncludingDelayedTasks();
    assertThat(getPathLayer()).isNull();
}
 

private long insertWaypoint(String title, String description, String category, double distance, long hoursAgo, long trackId) {
  Waypoint waypoint = new Waypoint();
  waypoint.setName(title);
  waypoint.setDescription(description);
  waypoint.setCategory(category);
  waypoint.setTrackId(trackId);

  Location location = new Location(HERE);
  location.setLatitude(location.getLatitude() + distance);
  location.setLongitude(location.getLongitude() + distance);
  if (hoursAgo >= 0) {
    location.setTime(NOW - hoursAgo * 1000L * 60L * 60L);
  }
  waypoint.setLocation(location);

  Uri uri = providerUtils.insertWaypoint(waypoint);
  return ContentUris.parseId(uri);
}
 

public Location getLocationInfo()
{
    if (enableGeoLocation) {
     if (locationManager == null)
     {
         // init location Manager
         locationManager = new InfoGeoLocation(context);
         locationManager.start();
     }
     final Location curLocation = locationManager.getLastKnownLocation();
     
     if (curLocation != null && this.collectInformation)
     {
         geoLocations.add(new GeoLocationItem(curLocation.getTime(), curLocation.getLatitude(), curLocation
                 .getLongitude(), curLocation.getAccuracy(), curLocation.getAltitude(), curLocation.getBearing(),
                 curLocation.getSpeed(), curLocation.getProvider()));
         Log.i(DEBUG_TAG, "Location: " + curLocation.toString());
     }
     
     return curLocation;
    }
    else {
    	return null;
    }
    
}
 

/**
 * Blurs the specified location with the defined blur radius or returns an unchanged location if no blur radius is set
 *
 * @param originalLocation the original location received from the device
 * @return the blurred location
 */
private Location blurWithRadius(final Location originalLocation) {
	if (mBlurRadius <= 0) {
		return originalLocation;
	}
	else {
		Location newLocation = new Location(originalLocation);

		double blurMeterLong = calculateRandomOffset(mBlurRadius) / SQUARE_ROOT_TWO;
		double blurMeterLat = calculateRandomOffset(mBlurRadius) / SQUARE_ROOT_TWO;

		newLocation.setLongitude(newLocation.getLongitude() + meterToLongitude(blurMeterLong, newLocation.getLatitude()));
		newLocation.setLatitude(newLocation.getLatitude() + meterToLatitude(blurMeterLat));

		return newLocation;
	}
}
 

private void requestLocationUpdates() {
    Set<String> mProviders = GeoUtils.evaluateProvidersWithPermissions(mLocationManager, context);

    for (String provider : mProviders) {
        // Ignore the inspector warnings; the permissions are already checked in evaluateProvidersWithPermissions.
        if (location == null) {
            Location lastKnownLocation = mLocationManager.getLastKnownLocation(provider);
            if (lastKnownLocation != null) {
                this.location = lastKnownLocation;
                this.lastDisplayedLocation = lastKnownLocation;
                Log.i("HereFunctionHandler", "last known location: " + this.location);
            }
        }

        // Looper is necessary because requestLocationUpdates is called inside an AsyncTask (EntityLoaderTask).
        // What values for minTime and minDistance?
        mLocationManager.requestLocationUpdates(provider, 0, 0, this, Looper.getMainLooper());
        requestingLocationUpdates = true;
    }
}
 

public static String getDistance(AVGeoPoint p1, AVGeoPoint p2)
{
	float[] results = new float[1];
	Location.distanceBetween(p1.getLatitude(), p1.getLongitude(), p2.getLatitude(), p2
					.getLongitude(), results);
	int m = (int) results[0];
	String strM = m + "";
	if (strM.length() > 6)//换算成kkm
	{
		float kkm = m * 1.0f / (1000 * 1000);
		kkm = Math.round(kkm * 100) * 1.0f / 10;
		return kkm + "kkm";
	} else if (strM.length() > 3)//换算成 km
	{
		float km = m * 1.0f / 1000;
		km = Math.round(km * 100) * 1.0f / 10;
		return km + "km";
	}
	return m + "m";
}
 

/**
 * Sends some locations which are moving and checks some simple policy.
 * 
 * @param points number of locations
 * @param startTime start time of this track
 * @param tripStatistics the TripStatistics object
 * @param timeOffset offset to start time
 * @param locationOffset location offset to start
 */
private void addLocations(int points, long startTime, TripStatistics tripStatistics,
    int timeOffset, int locationOffset) {
  for (int i = 0; i < points; i++) {
    // 99999 means a speed should bigger than given speed.
    Location location = getLocation(i + locationOffset, (i + locationOffset) * .001, 99999,
        startTime + (timeOffset + i) * TEN_SECONDS);
    tripStatisticsUpdater.addLocation(location,
        PreferencesUtils.RECORDING_DISTANCE_INTERVAL_DEFAULT, true, ActivityType.WALKING,
        DEFAULT_WEIGHT);
    tripStatistics = tripStatisticsUpdater.getTripStatistics();

    assertTrue(tripStatistics.getMovingTime() <= tripStatistics.getTotalTime());
    assertTrue(tripStatistics.getAverageSpeed() <= tripStatistics.getAverageMovingSpeed());
    assertTrue(tripStatistics.getAverageMovingSpeed() <= tripStatistics.getMaxSpeed());
    assertTrue(tripStatistics.getStopTime() >= tripStatistics.getStartTime());
  }
}
 

/**
 * Returns the location received most recently from {@link #onLocationChanged(Location)},
 * or consult {@link LocationManager#getLastLocation()} if none has arrived. Does not return
 * either if the location would be too stale to be useful.
 *
 * @return a fresh, valid Location, or null if none is available
 */
private Location getFreshLocationLocked() {
    // Prefer mLastLocationUpdate to LocationManager.getLastLocation().
    Location location = mReceivingLocationUpdates ? mLastLocationUpdate : null;
    if (location == null && !mFences.isEmpty()) {
        location = mLocationManager.getLastLocation();
    }

    // Early out for null location.
    if (location == null) {
        return null;
    }

    // Early out for stale location.
    long now = SystemClock.elapsedRealtimeNanos();
    if (now - location.getElapsedRealtimeNanos() > MAX_AGE_NANOS) {
        return null;
    }

    // Made it this far? Return our fresh, valid location.
    return location;
}
 

public synchronized void scanGsm(final String calledFrom) {
    if (thread != null) {
        if (DEBUG)
            Log.i(TAG, "scanGsm() : Thread busy?!");
        return;
    }

    if (th != null) {
        thread = new Thread(new Runnable() {
            @Override
            public void run() {
                Location rslt = th.getLocationEstimate();
                String logString;

                if (rslt != null) {
                    rslt.setTime(System.currentTimeMillis());
                    logString = "scanGsm(" + calledFrom + ") " + rslt.toString();
                } else
                    logString = "scanGsm(" + calledFrom + ")  null position";

                if (DEBUG)
                    Log.i(TAG, logString);

                report(rslt);

                thread = null;
            }
        });
        thread.start();
    } else if (DEBUG)
        Log.i(TAG, "Telephony helper is null?!?");
}
 

static boolean isInside(LocationUSourceData data, Location location) {
    for (LatLong center : data.locations) {
        if (inside(center, data.radius, location.getLatitude(), location.getLongitude())) {
            return true;
        }
    }
    return false;
}
 

@Test
public void onRecalculate_shouldAnnounceRecalculation() throws Exception {
    initTestFragment();
    TestHelper.startFragment(fragment, act);
    Location testLocation = getTestLocation(111.0, 111.0);
    fragment.onRecalculate(testLocation);
    assertLastSpokenText(act.getString(R.string.recalculating));
}
 

private void fillStatusPanel(Location location){
    if (mStatusPanelMode == 0)
        return;

    boolean needViewUpdate = true;
    boolean isCurrentOrientationOneLine = mStatusPanel.getChildCount() > 0 &&
            mStatusPanel.getChildAt(0).getId() == R.id.status_container_land;

    View panel;
    if (!isCurrentOrientationOneLine) {
        panel = mActivity.getLayoutInflater().inflate(R.layout.status_panel_land, mStatusPanel, false);
        defineTextViews(panel);
    } else {
        panel = mStatusPanel.getChildAt(0);
        needViewUpdate = false;
    }

    fillTextViews(location);

    if (!isFitOneLine()) {
        panel = mActivity.getLayoutInflater().inflate(R.layout.status_panel, mStatusPanel, false);
        defineTextViews(panel);
        fillTextViews(location);
        needViewUpdate = true;
    }

    if (needViewUpdate) {
        mStatusPanel.removeAllViews();
        panel.getBackground().setAlpha(128);
        mStatusPanel.addView(panel);
    }
}
 

/**
 * Gets a KML LineString value representing an array of locations.
 *
 * @param locations the locations.
 * @return the KML LineString value.
 */
public static String getKmlLineString(ArrayList<Location> locations) {
  StringBuilder builder = new StringBuilder("<LineString><coordinates>");
  if (locations != null) {
    for (int i = 0; i < locations.size(); i++) {
      if (i != 0) {
        builder.append(' ');
      }
      appendLocation(locations.get(i), builder);
    }
  }
  builder.append("</coordinates></LineString>");
  return builder.toString();
}
 

@Test
public void centerMapOnLocation_shouldCallView() {
    when(locationInteractor.isLocationAvailable()).thenReturn(Completable.complete());
    Location location = mock(Location.class);
    when(locationInteractor.getUpdatedLocation()).thenReturn(Single.just(location));

    mapPresenter.centerMapOnLocation();

    verify(view, times(1)).animateMapCamera(location);
}
 

@Override
public void onLocationChanged(@NonNull Location loc) {
    mLocation = loc;
    if ((mAdapter.getCount() <= 1)) {
        autoLocation();
    }


}
 

public Location getLastLocation() {
    if (!connected.get()) {
        updateLastLocation();
    }
    if (lastLocation == null) {
        Log.d(TAG, "uh-ok: last location for " + name + " is null!");
    }
    return lastLocation;
}
 

@Override
public void onLocationResult(LocationResult locationResult) {
  Location location = locationResult.getLastLocation();
  if (location != null) {
    updateTextView(location);
  }
}
 

@Override
public void onConnected(@Nullable Bundle bundle) {
    // When we are connected to Google Play service
    // Get last known recent location (maybe it's not very accurate)
    Location lastLocation = locationService.getLastLocation();
    // Note that this can be NULL if last location isn't already known
    if (lastLocation != null) {
        // Show last location
        updateLocation(lastLocation);
    }
    // Begin polling for new location updates
    locationService.createLocationRequest(this);
    locationService.startLocationUpdates(this);
}
 

/**
 * Returns an X-Geo HTTP header string if:
 *  1. The current mode is not incognito.
 *  2. The url is a google search URL (e.g. www.google.co.uk/search?q=cars), and
 *  3. The user has not disabled sharing location with this url, and
 *  4. There is a valid and recent location available.
 *
 * Returns null otherwise.
 *
 * @param context The Context used to get the device location.
 * @param url The URL of the request with which this header will be sent.
 * @param isIncognito Whether the request will happen in an incognito tab.
 * @return The X-Geo header string or null.
 */
public static String getGeoHeader(Context context, String url, boolean isIncognito) {
    if (!isGeoHeaderEnabledForUrl(context, url, isIncognito, true)) {
        return null;
    }

    // Only send X-Geo header if there's a fresh location available.
    Location location = GeolocationTracker.getLastKnownLocation(context);
    if (location == null) {
        recordHistogram(UMA_LOCATION_NOT_AVAILABLE);
        return null;
    }
    if (GeolocationTracker.getLocationAge(location) > MAX_LOCATION_AGE) {
        recordHistogram(UMA_LOCATION_STALE);
        return null;
    }

    recordHistogram(UMA_HEADER_SENT);

    // Timestamp in microseconds since the UNIX epoch.
    long timestamp = location.getTime() * 1000;
    // Latitude times 1e7.
    int latitude = (int) (location.getLatitude() * 10000000);
    // Longitude times 1e7.
    int longitude = (int) (location.getLongitude() * 10000000);
    // Radius of 68% accuracy in mm.
    int radius = (int) (location.getAccuracy() * 1000);

    // Encode location using ascii protobuf format followed by base64 encoding.
    // https://goto.google.com/partner_location_proto
    String locationAscii = String.format(Locale.US,
            "role:1 producer:12 timestamp:%d latlng{latitude_e7:%d longitude_e7:%d} radius:%d",
            timestamp, latitude, longitude, radius);
    String locationBase64 = new String(Base64.encode(locationAscii.getBytes(), Base64.NO_WRAP));

    return "X-Geo: a " + locationBase64;
}
 

@Deprecated
@org.xwalk.core.JavascriptInterface
@android.webkit.JavascriptInterface
@SuppressLint("MissingPermission") // handled by catch(Exception)
/**
 * @deprecated Location should be fetched directly from the browser.
 * @see https://github.com/medic/medic-webapp/issues/3781
 */
public String getLocation() {
	try {
		if(locationManager == null) return jsonError("LocationManager not set.  Cannot retrieve location.");

		String provider = locationManager.getBestProvider(new Criteria(), true);
		if(provider == null) return jsonError("No location provider available.");

		Location loc = locationManager.getLastKnownLocation(provider);

		if(loc == null) return jsonError("Provider '" + provider + "' did not provide a location.");

		return new JSONObject()
				.put("lat", loc.getLatitude())
				.put("long", loc.getLongitude())
				.toString();
	} catch(Exception ex) {
		return jsonError("Problem fetching location: ", ex);
	}
}
 

private boolean isBetterLocation(Location prev, Location current) {
    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
    boolean pref_altitude = prefs.getBoolean(SettingsFragment.PREF_ALTITUDE, SettingsFragment.DEFAULT_ALTITUDE);
    return (prev == null ||
            ((!pref_altitude || !prev.hasAltitude() || current.hasAltitude()) &&
                    (current.hasAccuracy() ? current.getAccuracy() : Float.MAX_VALUE) <
                            (prev.hasAccuracy() ? prev.getAccuracy() : Float.MAX_VALUE)));
}
 

/**
 * Takes in a raw location, converts it to a point, and snaps it to the closest point along the
 * route. This is isolated as separate logic from the snap logic provided because we will always
 * need to snap to the route in order to get the most accurate information.
 */
static Point userSnappedToRoutePosition(Location location, List<Point> coordinates) {
  if (coordinates.size() < 2) {
    return Point.fromLngLat(location.getLongitude(), location.getLatitude());
  }

  Point locationToPoint = Point.fromLngLat(location.getLongitude(), location.getLatitude());

  // Uses Turf's pointOnLine, which takes a Point and a LineString to calculate the closest
  // Point on the LineString.
  Feature feature = TurfMisc.nearestPointOnLine(locationToPoint, coordinates);
  return ((Point) feature.geometry());
}