android.location.LocationManager#getLastKnownLocation

Source File: MainFragment.java From prayer-times-android with Apache License 2.0

7 votes

@Override
public void onResume() {
    super.onResume();
    if (PermissionUtils.get(getActivity()).pLocation) {
        LocationManager locMan = (LocationManager) getActivity().getSystemService(Context.LOCATION_SERVICE);

        List<String> providers = locMan.getProviders(true);
        for (String provider : providers) {
            locMan.requestLocationUpdates(provider, 0, 0, this);
            Location lastKnownLocation = locMan.getLastKnownLocation(provider);
            if (lastKnownLocation != null) {
                calcQiblaAngle(lastKnownLocation);
            }
        }
    }

    if (Preferences.COMPASS_LAT.get() != 0) {
        Location loc = new Location("custom");
        loc.setLatitude(Preferences.COMPASS_LAT.get());
        loc.setLongitude(Preferences.COMPASS_LNG.get());
        calcQiblaAngle(loc);
    }
}

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: LocationUtil.java From mirror with Apache License 2.0

6 votes

@SuppressWarnings("ResourceType")
public static boolean isLocationAvailable(final Context context) {
    final LocationManager manager = (LocationManager) context.getSystemService(LOCATION_SERVICE);
    if (manager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)) {
        Timber.d("NETWORK_PROVIDER is enabled");
        manager.removeUpdates(LOCATION_LISTENER);
        if (manager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER) == null) {
            manager.requestLocationUpdates(
                    LocationManager.NETWORK_PROVIDER,
                    MINIMUM_TIME_BETWEEN_UPDATES,
                    MINIMUM_DISTANCE_CHANGE_FOR_UPDATES,
                    LOCATION_LISTENER
            );
        } else {
            return true;
        }
    } else {
        Timber.e("NETWORK_PROVIDER is disabled");
    }
    return false;
}

Source File: MainActivity.java From Grant with Apache License 2.0

6 votes

private double[] getCoordinates() {
    LocationManager lm = (LocationManager) getSystemService(
            Context.LOCATION_SERVICE);
    List<String> providers = lm.getProviders(true);

    Location l = null;

    for (int i = providers.size() - 1; i >= 0; i--) {
        //noinspection ResourceType
        l = lm.getLastKnownLocation(providers.get(i));
        if (l != null) break;
    }

    double[] gps = new double[2];
    if (l != null) {
        gps[0] = l.getLatitude();
        gps[1] = l.getLongitude();
    }

    return gps;
}

Source File: MyLocationActivity.java From Complete-Google-Map-API-Tutorial with Apache License 2.0

6 votes

private void goToMyLocation()
{
	if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
			ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
	{
		enableMyLocation();
	} else
	{
		googleMap.setMyLocationEnabled(true);
		LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
		Criteria criteria = new Criteria();
		Location location = locationManager.getLastKnownLocation(locationManager.getBestProvider(criteria, false));
		if (location != null)
		{
			googleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(location.getLatitude(), location.getLongitude()), 13));
		}
	}
}

Source File: PermissionUtil.java From DoraemonKit with Apache License 2.0

6 votes

/**
 * 检测是否有定位权限，不可靠，比如在室内打开app，这种情况下定位模块没有值，会报无权限
 *
 * @return
 */
@SuppressLint("MissingPermission")
public static boolean checkLocationUnreliable(Context context) {
    try {
        LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
        if (ActivityCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
                && ActivityCompat.checkSelfPermission(context, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return false;
        }
        Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
        Location location2 = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
        return location != null || location2 != null;
    } catch (Exception e) {
        return false;
    }
}

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: BaseActivity.java From JsBridge with Apache License 2.0

6 votes

public Location getLocation(LocationListener listener) {
    locationListener = listener;
    mLocationManager = (LocationManager) HiApplication.getInstance().getSystemService(Context.LOCATION_SERVICE);
    List<String> providers = mLocationManager.getProviders(true);
    String locationProvider = null;
    if (providers.contains(LocationManager.GPS_PROVIDER)) {
        //如果是GPS
        locationProvider = LocationManager.GPS_PROVIDER;
    } else if (providers.contains(LocationManager.NETWORK_PROVIDER)) {
        //如果是Network
        locationProvider = LocationManager.NETWORK_PROVIDER;
    }
    Location location = mLocationManager.getLastKnownLocation(locationProvider);
    mLocationManager.requestLocationUpdates(locationProvider, 3000, 1, locationListener);
    return location;
}

Source File: Address.java From arcusandroid with Apache License 2.0

6 votes

public Location getLastKnownCoarseLocation () {
    LocationManager locationManager = (LocationManager) activity.getSystemService(Context.LOCATION_SERVICE);
    try {
        // Walk through each enabled location provider and return the first found, last-known location
        for (String thisLocProvider : locationManager.getProviders(true)) {
            Location lastKnown = locationManager.getLastKnownLocation(thisLocProvider);

            if (lastKnown != null) {
                return lastKnown;
            }
        }
    } catch(SecurityException exception) {

    }
    // Always possible there's no means to determine location
    return null;
}

Source File: LocationActivity.java From TelePlus-Android with GNU General Public License v2.0

5 votes

private Location getLastLocation() {
    LocationManager lm = (LocationManager) ApplicationLoader.applicationContext.getSystemService(Context.LOCATION_SERVICE);
    List<String> providers = lm.getProviders(true);
    Location l = null;
    for (int i = providers.size() - 1; i >= 0; i--) {
        l = lm.getLastKnownLocation(providers.get(i));
        if (l != null) {
            break;
        }
    }
    return l;
}

Source File: GeolocationTracker.java From AndroidChromium with Apache License 2.0

5 votes

/**
 * Returns the last known location from the network provider or null if none is available.
 */
static Location getLastKnownLocation(Context context) {
    if (sUseLocationForTesting) return sLocationForTesting;
    LocationManager locationManager =
            (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    return locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
}

Source File: CbLocationManager.java From PressureNet-SDK with MIT License

5 votes

/**
    * Construct our location manager using network and gps managers, preferences
    * @param ctx
    */
public CbLocationManager(Context ctx) {
	context = ctx;
	setUpFiles();
	try {
    	networkLocationManager = (LocationManager)  context.getSystemService(Context.LOCATION_SERVICE);
    	gpsLocationManager = (LocationManager)  context.getSystemService(Context.LOCATION_SERVICE);

   		settings = new CbSettingsHandler(context);
   		settings = settings.getSettings();
   		
   		Location lastKnownNetwork = networkLocationManager.getLastKnownLocation("network");
   
   		if(settings.isUseGPS()) {
   			Location lastKnownGPS = gpsLocationManager.getLastKnownLocation("gps");
   			if(lastKnownGPS != null ) {
   				currentBestLocation = lastKnownGPS;
   			} else {
   				currentBestLocation = lastKnownNetwork;
   			}
   		} else {
			currentBestLocation = lastKnownNetwork;
    	} 
   	} catch(Exception e) {
		log("cblocation manager error: " + e.getMessage());
		e.printStackTrace();
   	}
}

Source File: GeolocationTracker.java From 365browser with Apache License 2.0

5 votes

/**
 * Returns the last known location or null if none is available.
 *
 * @param includeGpsFallback Whether the gps provider should also be used as a fallback.
 *        Otherwise only the network provider will be used.
 */
static Location getLastKnownLocation(Context context, boolean includeGpsFallback) {
    if (sUseLocationForTesting) {
        return chooseLocation(
                sNetworkLocationForTesting, sGpsLocationForTesting, includeGpsFallback);
    }

    if (!hasPermission(context, Manifest.permission.ACCESS_COARSE_LOCATION)) {
        // Do not call location manager without permissions
        return null;
    }

    LocationManager locationManager =
            (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    Location networkLocation =
            locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
    // If no GPS location has been request, just return the network location. For efficiency,
    // don't even get the GPS location.
    if (!includeGpsFallback) {
        return networkLocation;
    }
    Location gpsLocation = null;
    if (hasPermission(context, Manifest.permission.ACCESS_FINE_LOCATION)) {
        // Only try to get GPS location when ACCESS_FINE_LOCATION is granted.
        gpsLocation = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
    }
    return chooseLocation(networkLocation, gpsLocation, includeGpsFallback);
}

Source File: DeviceLocation.java From ARCore-Location with MIT License

5 votes

public DeviceLocation() {

        try {
            // Getting LocationManager object
            locationManager = (LocationManager) LocationScene.mContext.getSystemService(Context.LOCATION_SERVICE);
            // Creating an empty criteria object
            Criteria criteria = new Criteria();

            // Getting the name of the provider that meets the criteria
            provider = locationManager.getBestProvider(criteria, false);

            if (provider != null && !provider.equals("")) {

                // Get the location from the given provider
                Location location = locationManager.getLastKnownLocation(provider);
                locationManager.requestLocationUpdates(provider, 1000, 1, this);

                if (location != null)
                    onLocationChanged(location);
                else
                    Toast.makeText(LocationScene.mContext, "Location can't be retrieved", Toast.LENGTH_SHORT).show();

            } else {
                Toast.makeText(LocationScene.mContext, "No Provider Found", Toast.LENGTH_SHORT).show();
            }

        } catch(SecurityException e) {
            Toast.makeText(LocationScene.mContext, "Enable location permissions from settings", Toast.LENGTH_SHORT).show();
        }
    }

Source File: ActionService.java From trojandroid_app with GNU General Public License v3.0

5 votes

private void getLocation(JSONObject argjson) {
    if (!argjson.has("location")){
        return;
    }

    //Get location manager
    LocationManager locManager = (LocationManager) this.context.getSystemService(context.LOCATION_SERVICE);

    //get the best provider to obtain the current location
    Location locationNetwork = locManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
    Location locationGPS = locManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
    Location locationPassive = locManager.getLastKnownLocation(LocationManager.PASSIVE_PROVIDER);

    String[] result = new String[6];

    //try to get latitude and longitude
    try {
        result[0] = "NETWORK Latitude " + String.valueOf(locationNetwork.getLatitude());
        result[1] = "NETWORK Longitude " + String.valueOf(locationNetwork.getLongitude());
        result[2] = "GPS Latitude " + String.valueOf(locationGPS.getLatitude());
        result[3] = "GPS Longitude " + String.valueOf(locationGPS.getLongitude());
        result[4] = "PASSIVE Latitude " + String.valueOf(locationPassive.getLatitude());
        result[5] = "PASSIVE Longitude " + String.valueOf(locationPassive.getLongitude());
    } catch (Exception ex) {//if this failed the method return 0,0
        Log.d(TAG, ex.getMessage());
        result[0] = "0";
        result[1] = "0";
        result[2] = "0";
        result[3] = "0";
        result[4] = "0";
        result[5] = "0";
    }

    this.result = new JSONArray(Arrays.asList(result)).toString();
}

Source File: LocationActivity.java From TelePlus-Android with GNU General Public License v2.0

5 votes

private Location getLastLocation() {
    LocationManager lm = (LocationManager) ApplicationLoader.applicationContext.getSystemService(Context.LOCATION_SERVICE);
    List<String> providers = lm.getProviders(true);
    Location l = null;
    for (int i = providers.size() - 1; i >= 0; i--) {
        l = lm.getLastKnownLocation(providers.get(i));
        if (l != null) {
            break;
        }
    }
    return l;
}

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: BetterWeatherExtension.java From BetterWeather with Apache License 2.0

4 votes

/**
 * Requests a location update if setting is Automatic, else it will give a dummy location
 *
 * @param lm       Location Manager from {@link net.imatruck.betterweather.BetterWeatherExtension#onUpdateData(int)}
 * @param provider Provider determined in {@link net.imatruck.betterweather.BetterWeatherExtension#onUpdateData(int)}
 */
private void requestLocationUpdate(final LocationManager lm, final String provider) {
    if (provider != null && sUseCurrentLocation) {
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
                ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            handleMissingPermission();
            return;
        }
        final Location lastLocation = lm.getLastKnownLocation(provider);
        if (lastLocation == null ||
                (SystemClock.elapsedRealtimeNanos() - lastLocation.getElapsedRealtimeNanos())
                        >= STALE_LOCATION_NANOS) {
            LOGW(TAG, "Stale or missing last-known location; requesting single coarse location "
                    + "update. " + ((lastLocation != null) ? lastLocation.getLatitude() + ", " + lastLocation.getLongitude() : "Last location is null"));
            try {
                disableOneTimeLocationListener();
                mOneTimeLocationListenerActive = true;
                lm.requestSingleUpdate(provider, mOneTimeLocationListener, null);
                gpsFixHandler.postDelayed(new Runnable() {
                    public void run() {
                        disableOneTimeLocationListener();
                        LOGD(TAG, "We didn't get a GPS fix quick enough, we'll try again later");
                        scheduleRefresh(0);
                    }
                }, 30 * 1000);
                LOGD(TAG, "Requested single location update");
                if (lastLocation != null) {
                    new RefreshWeatherTask(lastLocation).execute();
                }
            } catch (Exception e) {
                LOGW(TAG, "RuntimeException on requestSingleUpdate. " + e.toString());
                scheduleRefresh(2);
            }
        } else {
            new RefreshWeatherTask(lastLocation).execute();
        }
    } else if (!sUseCurrentLocation) {
        LOGD(TAG, "Using set location");
        disableOneTimeLocationListener();
        Location dummyLocation = new Location(provider);
        new RefreshWeatherTask(dummyLocation).execute();
    } else {
        handleMissingPermission();
    }
}

Source File: GPSTracker.java From Women-Safety-App with GNU General Public License v2.0

4 votes

public Location getLocation() {
	try {
		locationManager = (LocationManager) mContext
				.getSystemService(LOCATION_SERVICE);

		// getting GPS status
		isGPSEnabled = locationManager
				.isProviderEnabled(LocationManager.GPS_PROVIDER);

		// getting network status
		isNetworkEnabled = locationManager
				.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

		if (!isGPSEnabled && !isNetworkEnabled) {
			// no network provider is enabled
		} else {
			this.canGetLocation = true;
			if (isNetworkEnabled) {
				locationManager.requestLocationUpdates(
						LocationManager.NETWORK_PROVIDER,
						MIN_TIME_BW_UPDATES,
						MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
				Log.d("Network", "Network");
				if (locationManager != null) {
					location = locationManager
							.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
					if (location != null) {
						latitude = location.getLatitude();
						longitude = location.getLongitude();
					}
				}
			}
			// if GPS Enabled get lat/long using GPS Services
			if (isGPSEnabled) {
				if (location == null) {
					locationManager.requestLocationUpdates(
							LocationManager.GPS_PROVIDER,
							MIN_TIME_BW_UPDATES,
							MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
					Log.d("GPS Enabled", "GPS Enabled");
					if (locationManager != null) {
						location = locationManager
								.getLastKnownLocation(LocationManager.GPS_PROVIDER);
						if (location != null) {
							latitude = location.getLatitude();
							longitude = location.getLongitude();
						}
					}
				}
			}
		}

	} catch (Exception e) {
		e.printStackTrace();
	}

	return location;
}

Source File: GPStracker.java From goprohero with MIT License

4 votes

public Location getLocation() {
    try {
        locationManager = (LocationManager) mContext
                .getSystemService(LOCATION_SERVICE);

        // getting GPS status
        isGPSEnabled = locationManager
                .isProviderEnabled(LocationManager.GPS_PROVIDER);

        // getting network status
        isNetworkEnabled = locationManager
                .isProviderEnabled(LocationManager.NETWORK_PROVIDER);

        if (!isGPSEnabled && !isNetworkEnabled) {
            // no network provider is enabled
        } else {
            this.canGetLocation = true;
            // First get location from Network Provider
            if (isNetworkEnabled) {
                locationManager.requestLocationUpdates(
                        LocationManager.NETWORK_PROVIDER,
                        MIN_TIME_BW_UPDATES,
                        MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                Log.d("Network", "Network");
                if (locationManager != null) {
                    location = locationManager
                            .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                    if (location != null) {
                        latitude = location.getLatitude();
                        longitude = location.getLongitude();
                    }
                }
            }
            // if GPS Enabled get lat/long using GPS Services
            if (isGPSEnabled) {
                if (location == null) {
                    locationManager.requestLocationUpdates(
                            LocationManager.GPS_PROVIDER,
                            MIN_TIME_BW_UPDATES,
                            MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                    Log.d("GPS Enabled", "GPS Enabled");
                    if (locationManager != null) {
                        location = locationManager
                                .getLastKnownLocation(LocationManager.GPS_PROVIDER);
                        if (location != null) {
                            latitude = location.getLatitude();
                            longitude = location.getLongitude();
                        }
                    }
                }
            }
        }

    } catch (Exception e) {
        e.printStackTrace();
    }

    return location;
}

Java Code Examples for android.location.LocationManager#getLastKnownLocation()