android.location.Criteria#setAccuracy

Source File: LocationUtils.java From DevUtils with Apache License 2.0

6 votes

/**
 * 获取定位参数对象
 * @return {@link Criteria}
 */
private static Criteria getCriteria() {
    Criteria criteria = new Criteria();
    // 设置定位精确度 Criteria.ACCURACY_COARSE 比较粗略, Criteria.ACCURACY_FINE 则比较精细
    criteria.setAccuracy(Criteria.ACCURACY_FINE);
    // 设置是否要求速度
    criteria.setSpeedRequired(false);
    // 设置是否允许运营商收费
    criteria.setCostAllowed(false);
    // 设置是否需要方位信息
    criteria.setBearingRequired(false);
    // 设置是否需要海拔信息
    criteria.setAltitudeRequired(false);
    // 设置对电源的需求
    criteria.setPowerRequirement(Criteria.POWER_LOW);
    return criteria;
}

Source File: RawLocationProvider.java From background-geolocation-android with Apache License 2.0

6 votes

@Override
public void onStart() {
    if (isStarted) {
        return;
    }

    Criteria criteria = new Criteria();
    criteria.setAltitudeRequired(false);
    criteria.setBearingRequired(false);
    criteria.setSpeedRequired(true);
    criteria.setCostAllowed(true);
    criteria.setAccuracy(Criteria.ACCURACY_FINE);
    criteria.setHorizontalAccuracy(translateDesiredAccuracy(mConfig.getDesiredAccuracy()));
    criteria.setPowerRequirement(Criteria.POWER_HIGH);

    try {
        locationManager.requestLocationUpdates(locationManager.getBestProvider(criteria, true), mConfig.getInterval(), mConfig.getDistanceFilter(), this);
        isStarted = true;
    } catch (SecurityException e) {
        logger.error("Security exception: {}", e.getMessage());
        this.handleSecurityException(e);
    }
}

Source File: LocationUtils.java From Android-UtilCode with Apache License 2.0

6 votes

/**
 * 设置定位参数
 *
 * @return {@link Criteria}
 */
private static Criteria getCriteria() {
    Criteria criteria = new Criteria();
    // 设置定位精确度 Criteria.ACCURACY_COARSE比较粗略，Criteria.ACCURACY_FINE则比较精细
    criteria.setAccuracy(Criteria.ACCURACY_FINE);
    // 设置是否要求速度
    criteria.setSpeedRequired(false);
    // 设置是否允许运营商收费
    criteria.setCostAllowed(false);
    // 设置是否需要方位信息
    criteria.setBearingRequired(false);
    // 设置是否需要海拔信息
    criteria.setAltitudeRequired(false);
    // 设置对电源的需求
    criteria.setPowerRequirement(Criteria.POWER_LOW);
    return criteria;
}

Source File: Util.java From letv with Apache License 2.0

6 votes

public static String getLocation(Context context) {
    if (context == null) {
        return "";
    }
    try {
        LocationManager locationManager = (LocationManager) context.getSystemService(HOME_RECOMMEND_PARAMETERS.LOCATION);
        Criteria criteria = new Criteria();
        criteria.setCostAllowed(false);
        criteria.setAccuracy(2);
        String bestProvider = locationManager.getBestProvider(criteria, true);
        if (bestProvider != null) {
            Location lastKnownLocation = locationManager.getLastKnownLocation(bestProvider);
            if (lastKnownLocation == null) {
                return "";
            }
            double latitude = lastKnownLocation.getLatitude();
            g = latitude + "*" + lastKnownLocation.getLongitude();
            return g;
        }
    } catch (Throwable e) {
        f.b("getLocation", "getLocation>>>", e);
    }
    return "";
}

Source File: LocationLogic.java From redalert-android with Apache License 2.0

6 votes

public static Location GetLastKnownLocation(Context context) {
    // Get location manager
    LocationManager locationManager = (LocationManager) context.getSystemService(context.LOCATION_SERVICE);

    // Create location criteria
    Criteria criteria = new Criteria();

    // Set fine accuracy
    criteria.setAccuracy(criteria.ACCURACY_FINE);

    // Get best provider
    String bestProvider = locationManager.getBestProvider(criteria, false);

    // No provider?
    if (bestProvider == null) {
        // Return null
        return null;
    }

    // Return last location
    return locationManager.getLastKnownLocation(bestProvider);
}

Source File: GpsTraceService.java From MobileGuard with MIT License

6 votes

@Override
public void onCreate() {
    super.onCreate();

    // locate
    locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
    // check permission
    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        return;
    }

    // get best provider
    Criteria criteria = new Criteria();
    criteria.setCostAllowed(true);
    criteria.setAccuracy(Criteria.ACCURACY_FINE);
    String bestProvider = locationManager.getBestProvider(criteria, true);
    System.out.println("best provider:" + bestProvider);
    // start listening
    listener = new MyLocationListener();
    locationManager.requestLocationUpdates(bestProvider, 0, 0, listener);
}

Source File: LocationUtils.java From AndroidUtilCode with Apache License 2.0

6 votes

/**
 * 设置定位参数
 *
 * @return {@link Criteria}
 */
private static Criteria getCriteria() {
    Criteria criteria = new Criteria();
    // 设置定位精确度 Criteria.ACCURACY_COARSE比较粗略，Criteria.ACCURACY_FINE则比较精细
    criteria.setAccuracy(Criteria.ACCURACY_FINE);
    // 设置是否要求速度
    criteria.setSpeedRequired(false);
    // 设置是否允许运营商收费
    criteria.setCostAllowed(false);
    // 设置是否需要方位信息
    criteria.setBearingRequired(false);
    // 设置是否需要海拔信息
    criteria.setAltitudeRequired(false);
    // 设置对电源的需求
    criteria.setPowerRequirement(Criteria.POWER_LOW);
    return criteria;
}

Source File: GeoLowResSucker.java From CameraV with GNU General Public License v3.0

5 votes

@SuppressWarnings("unchecked")
public GeoLowResSucker(Context context) {
	super(context);
	setSucker(this);
	
	lm = (LocationManager) context.getApplicationContext().getSystemService(Context.LOCATION_SERVICE);
		
	criteria = new Criteria();
	criteria.setAccuracy(Criteria.ACCURACY_LOW);
	criteria.setPowerRequirement(Criteria.POWER_LOW);
	
	mBestProvider = lm.getBestProvider(criteria, true); //we only want providers that are on
	
	lm.requestLocationUpdates(mBestProvider, MIN_TIME, MIN_DISTANCE, this);
	
	setTask(new TimerTask() {

		@Override
		public void run() throws NullPointerException {
			if(getIsRunning()) {
				try {
					double[] loc = updateLocation();
					if (loc != null)
						sendToBuffer(new ILogPack(Geo.Keys.GPS_COORDS, "[" + loc[0] + "," + loc[1] + "]"));
				} catch(NullPointerException e) {
					Log.e(LOG, "location NPE", e);
				}
			}
		}
	});
	
	getTimer().schedule(getTask(), 0, Geo.LOG_RATE);
}

Source File: LocationUtils.java From iot-starter-for-android with Eclipse Public License 1.0

5 votes

/**
 * Helper method to create a criteria for location change listener
 *
 * @return criteria constructed for the listener
 */
private Criteria getCriteria() {
    Criteria criteria = new Criteria();
    criteria.setPowerRequirement(Criteria.POWER_LOW);
    criteria.setAccuracy(Criteria.ACCURACY_FINE);
    criteria.setAltitudeRequired(false);
    criteria.setBearingRequired(true);
    criteria.setCostAllowed(true);
    criteria.setSpeedRequired(true);
    return criteria;
}

Source File: MainFragment.java From AndroidSlidingUpPanel-foursquare-map-demo with Apache License 2.0

5 votes

private LatLng getLastKnownLocation(boolean isMoveMarker) {
    LocationManager lm = (LocationManager) TheApp.getAppContext().getSystemService(Context.LOCATION_SERVICE);
    Criteria criteria = new Criteria();
    criteria.setAccuracy(Criteria.ACCURACY_LOW);
    String provider = lm.getBestProvider(criteria, true);
    if (provider == null) {
        return null;
    }
    Activity activity = getActivity();
    if (activity == null) {
        return null;
    }
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        if (activity.checkSelfPermission(Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
                activity.checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return null;
        }
    }
    Location loc = lm.getLastKnownLocation(provider);
    if (loc != null) {
        LatLng latLng = new LatLng(loc.getLatitude(), loc.getLongitude());
        if (isMoveMarker) {
            moveMarker(latLng);
        }
        return latLng;
    }
    return null;
}

Source File: LastLocationFinder.java From Android-Next with Apache License 2.0

5 votes

/**
 * Construct a new Gingerbread Last Location Finder.
 *
 * @param context Context
 */
public LastLocationFinder(Context context) {
    this.context = context;
    locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    // Coarse accuracy is specified here to get the fastest possible result.
    // The calling Activity will likely (or have already) request ongoing
    // updates using the Fine location provider.
    criteria = new Criteria();
    criteria.setAccuracy(Criteria.ACCURACY_LOW);

    // Construct the Pending Intent that will be broadcast by the oneshot
    // location update.
    Intent updateIntent = new Intent(SINGLE_LOCATION_UPDATE_ACTION);
    pendingIntent = PendingIntent.getBroadcast(context, 0, updateIntent, PendingIntent.FLAG_UPDATE_CURRENT);
}

Source File: LocationInfo.java From batteryhub with Apache License 2.0

5 votes

public static String getBestProvider(Context context) {
    LocationManager manager = (LocationManager)
            context.getSystemService(Context.LOCATION_SERVICE);
    Criteria criteria = new Criteria();

    criteria.setAccuracy(Criteria.ACCURACY_COARSE);
    criteria.setPowerRequirement(Criteria.POWER_LOW);

    return manager.getBestProvider(criteria, true);
}

Source File: OrientationManager.java From PTVGlass with MIT License

5 votes

/**
 * Starts tracking the user's location and orientation. After calling this method, any
 * {@link OnChangedListener}s added to this object will be notified of these events.
 */
public void start() {
    if (!mTracking) {
        mSensorManager.registerListener(mSensorListener,
                mSensorManager.getDefaultSensor(Sensor.TYPE_ROTATION_VECTOR),
                SensorManager.SENSOR_DELAY_UI);

        // The rotation vector sensor doesn't give us accuracy updates, so we observe the
        // magnetic field sensor solely for those.
        mSensorManager.registerListener(mSensorListener,
                mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD),
                SensorManager.SENSOR_DELAY_UI);

        Location lastLocation = mLocationManager
                .getLastKnownLocation(LocationManager.PASSIVE_PROVIDER);
        if (lastLocation != null) {
            long locationAge = lastLocation.getTime() - System.currentTimeMillis();
            if (locationAge < MAX_LOCATION_AGE_MILLIS) {
                mLocation = lastLocation;
                updateGeomagneticField();
            }
        }

        Criteria criteria = new Criteria();
        criteria.setAccuracy(Criteria.ACCURACY_FINE);
        criteria.setBearingRequired(false);
        criteria.setSpeedRequired(false);

        List<String> providers =
                mLocationManager.getProviders(criteria, true /* enabledOnly */);
        for (String provider : providers) {
            mLocationManager.requestLocationUpdates(provider,
                    MILLIS_BETWEEN_LOCATIONS, METERS_BETWEEN_LOCATIONS, mLocationListener,
                    Looper.getMainLooper());
        }

        mTracking = true;
    }
}

Source File: MyLocationOverlay.java From WhereYouGo with GNU General Public License v3.0

5 votes

private synchronized boolean enableBestAvailableProvider() {
    disableMyLocation();

    Criteria criteria = new Criteria();
    criteria.setAccuracy(Criteria.ACCURACY_FINE);
    String bestAvailableProvider = this.locationManager.getBestProvider(criteria, true);
    if (bestAvailableProvider == null) {
        return false;
    }
    this.lastLocation = this.locationManager.getLastKnownLocation(bestAvailableProvider);
    this.locationManager.requestLocationUpdates(bestAvailableProvider, UPDATE_INTERVAL,
            UPDATE_DISTANCE, this);
    this.myLocationEnabled = true;
    return true;
}

Source File: ShareUtil.java From Huochexing12306 with Apache License 2.0

5 votes

public Location getLocation(Activity activity)
{
    LocationManager locationManager = (LocationManager) activity.getSystemService(Context.LOCATION_SERVICE);
    // 查找到服务信息
    Criteria criteria = new Criteria();
    criteria.setAccuracy(Criteria.ACCURACY_FINE); // 高精度
    criteria.setAltitudeRequired(false);
    criteria.setBearingRequired(false);
    criteria.setCostAllowed(true);
    criteria.setPowerRequirement(Criteria.POWER_LOW); // 低功耗

    String provider = locationManager.getBestProvider(criteria, false); // 获取GPS信息
    Location location = locationManager.getLastKnownLocation(provider); // 通过GPS获取位置
    return location;
}

Source File: AndroidLocationEngineImpl.java From mapbox-events-android with MIT License

5 votes

@VisibleForTesting
static Criteria getCriteria(int priority) {
  Criteria criteria = new Criteria();
  criteria.setAccuracy(priorityToAccuracy(priority));
  criteria.setCostAllowed(true);
  criteria.setPowerRequirement(priorityToPowerRequirement(priority));
  return criteria;
}

Source File: OrientationManager.java From SpeedHud with Apache License 2.0

5 votes

/**
 * Starts tracking the user's location and orientation. After calling this method, any
 * {@link OnChangedListener}s added to this object will be notified of these events.
 */
public void start() {
    if (!mTracking) {
        mSensorManager.registerListener(mSensorListener,
                mSensorManager.getDefaultSensor(Sensor.TYPE_ROTATION_VECTOR),
                SensorManager.SENSOR_DELAY_UI);

        // The rotation vector sensor doesn't give us accuracy updates, so we observe the
        // magnetic field sensor solely for those.
        mSensorManager.registerListener(mSensorListener,
                mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD),
                SensorManager.SENSOR_DELAY_UI);

        Location lastLocation = mLocationManager
                .getLastKnownLocation(LocationManager.PASSIVE_PROVIDER);
        if (lastLocation != null) {
            long locationAge = lastLocation.getTime() - System.currentTimeMillis();
            if (locationAge < MAX_LOCATION_AGE_MILLIS) {
                mLocation = lastLocation;
                updateGeomagneticField();
            }
        }

        Criteria criteria = new Criteria();
        criteria.setAccuracy(Criteria.ACCURACY_FINE);
        criteria.setBearingRequired(false);
        criteria.setSpeedRequired(false);

        List<String> providers =
                mLocationManager.getProviders(criteria, true /* enabledOnly */);
        for (String provider : providers) {
            mLocationManager.requestLocationUpdates(provider,                        MILLIS_BETWEEN_LOCATIONS, METERS_BETWEEN_LOCATIONS, mLocationListener,
            Looper.getMainLooper());
        }

        mTracking = true;
    }
}

Source File: DalvikPositionService.java From attach with GNU General Public License v3.0

5 votes

private Criteria getLocationProvider() {
    final Criteria criteria = new Criteria();
    if (timeInterval <= 1000 && distanceFilter <= 1.0f) {
        // Parameters HIGH/HIGHEST
        criteria.setAccuracy(Criteria.ACCURACY_FINE);
        criteria.setHorizontalAccuracy(Criteria.ACCURACY_HIGH);
        criteria.setVerticalAccuracy(Criteria.ACCURACY_HIGH);
        criteria.setBearingAccuracy(Criteria.ACCURACY_HIGH);
        criteria.setSpeedAccuracy(Criteria.ACCURACY_HIGH);
        criteria.setPowerRequirement(Criteria.POWER_HIGH);
    } else if (timeInterval >= 30000 && distanceFilter >= 100.0f) {
        // Parameters LOW/LOWEST
        criteria.setAccuracy(Criteria.ACCURACY_COARSE);
        criteria.setHorizontalAccuracy(Criteria.ACCURACY_LOW);
        criteria.setVerticalAccuracy(Criteria.ACCURACY_LOW);
        criteria.setBearingAccuracy(Criteria.ACCURACY_LOW);
        criteria.setSpeedAccuracy(Criteria.ACCURACY_LOW);
        criteria.setPowerRequirement(Criteria.POWER_LOW);
    } else {
        // Parameter MEDIUM
        criteria.setAccuracy(Criteria.ACCURACY_COARSE);
        criteria.setHorizontalAccuracy(Criteria.ACCURACY_MEDIUM);
        criteria.setVerticalAccuracy(Criteria.ACCURACY_MEDIUM);
        criteria.setBearingAccuracy(Criteria.ACCURACY_MEDIUM);
        criteria.setSpeedAccuracy(Criteria.ACCURACY_MEDIUM);
        criteria.setPowerRequirement(Criteria.POWER_MEDIUM);
    }
    return criteria;
}

Source File: GeoLocation.java From open-rmbt with Apache License 2.0

4 votes

/** Load Listeners */
public void start()
{
    if (!started)
    {
        started = true;
        
        final Criteria criteriaCoarse = new Criteria();
        /* "Coarse" accuracy means "no need to use GPS". */
        criteriaCoarse.setAccuracy(Criteria.ACCURACY_COARSE);
        criteriaCoarse.setPowerRequirement(Criteria.POWER_LOW);
        final String coarseProviderName = locationManager.getBestProvider(criteriaCoarse, true);
        
        if (coarseProviderName != null)
        {
            isBetterLocation(locationManager.getLastKnownLocation(coarseProviderName));
            
            coarseLocationListener = new LocListener();
            locationManager.requestLocationUpdates(coarseProviderName,
            minTime,
            minDistance, coarseLocationListener);
        }
        
        if (gpsEnabled)
        {
            final Criteria criteriaFine = new Criteria();
            /* "Fine" accuracy means "use GPS". */
            criteriaFine.setAccuracy(Criteria.ACCURACY_FINE);
            criteriaFine.setPowerRequirement(Criteria.POWER_HIGH);
            final String fineProviderName = locationManager.getBestProvider(criteriaFine, true);
            
            if (fineProviderName != null)
            {
                isBetterLocation(locationManager.getLastKnownLocation(fineProviderName));
                
                fineLocationListener = new LocListener();
                locationManager.requestLocationUpdates(fineProviderName,
                minTime,
                minDistance, fineLocationListener);
            }
        }
    }
}

Source File: MapActivity.java From PocketMaps with MIT License

4 votes

public void ensureLocationListener(boolean showMsgEverytime)
{
  if (locationListenerStatus == PermissionStatus.Disabled) { return; }
  if (locationListenerStatus != PermissionStatus.Enabled)
  {
    boolean f_loc = Permission.checkPermission(android.Manifest.permission.ACCESS_FINE_LOCATION, this);
    if (!f_loc)
    {
      if (locationListenerStatus == PermissionStatus.Requesting)
      {
        locationListenerStatus = PermissionStatus.Disabled;
        return;
      }
      locationListenerStatus = PermissionStatus.Requesting;
      String[] permissions = new String[2];
      permissions[0] = android.Manifest.permission.ACCESS_FINE_LOCATION;
      permissions[1] = android.Manifest.permission.ACCESS_COARSE_LOCATION;
      Permission.startRequest(permissions, false, this);
      return;
    }
  }
  try
  {
    if (Variable.getVariable().isSmoothON()) {
      locationManager.removeUpdates(this);
      kalmanLocationManager.requestLocationUpdates(UseProvider.GPS, FILTER_TIME, GPS_TIME, NET_TIME, this, false);
      lastProvider = KalmanLocationManager.KALMAN_PROVIDER;
      logUser("LocationProvider: " + lastProvider);
    } else {
      kalmanLocationManager.removeUpdates(this);
      Criteria criteria = new Criteria();
      criteria.setAccuracy(Criteria.ACCURACY_FINE);
      String provider = locationManager.getBestProvider(criteria, true);
      if (provider == null) {
        lastProvider = null;
        locationManager.removeUpdates(this);
        logUser("LocationProvider is off!");
        return;
      } else if (provider.equals(lastProvider)) {
        if (showMsgEverytime) {
          logUser("LocationProvider: " + provider);
        }
        return;
      }
      locationManager.removeUpdates(this);
      lastProvider = provider;
      locationManager.requestLocationUpdates(provider, 3000, 5, this);
      logUser("LocationProvider: " + provider);
    }
    locationListenerStatus = PermissionStatus.Enabled;
  }
  catch (SecurityException ex)
  {
    logUser("Location_Service not allowed by user!");
  }
}

Java Code Examples for android.location.Criteria#setAccuracy()