Example usage for android.location LocationManager getLastKnownLocation

Introduction

In this page you can find the example usage for android.location LocationManager getLastKnownLocation.

Prototype

@RequiresPermission(anyOf = { ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION })
public Location getLastKnownLocation(String provider) 

Source Link

Document

Returns a Location indicating the data from the last known location fix obtained from the given provider.

Usage

From source file:mx.developerbus.foodbus.FoodBus_Main.java

public LatLng getLocation() {
    // Get the location manager
    LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
    Criteria criteria = new Criteria();
    String bestProvider = locationManager.getBestProvider(criteria, false);
    Location location = locationManager.getLastKnownLocation(bestProvider);
    Double lat, lon;//from   w w  w . j ava  2  s . c om
    try {
        lat = location.getLatitude();
        lon = location.getLongitude();
        return new LatLng(lat, lon);
    } catch (NullPointerException e) {
        e.printStackTrace();
        return null;
    }
}

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From source file:digital.dispatch.TaxiLimoNewUI.GCM.GCMIntentService.java

private Location getLocationByProvider(String provider) {
    Location location = null;//from   www  . ja  v  a  2  s.  com

    LocationManager locationManager = (LocationManager) c.getSystemService(Context.LOCATION_SERVICE);

    try {
        if (locationManager.isProviderEnabled(provider)) {
            location = locationManager.getLastKnownLocation(provider);
        }
    } catch (IllegalArgumentException e) {
        Logger.d(TAG, "Cannot acces Provider " + provider);
    }

    return location;
}

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From source file:com.jeremy.tripcord.main.TripcordFragment.java

private CameraUpdate getLastKnownLocation() {
    LocationManager lm = (LocationManager) getActivity().getSystemService(Context.LOCATION_SERVICE);
    Criteria criteria = new Criteria();
    criteria.setAccuracy(Criteria.ACCURACY_LOW);
    String provider = lm.getBestProvider(criteria, true);
    if (provider == null) {
        return null;
    }//from   ww  w.ja  v a  2s  .c o m
    Location loc = lm.getLastKnownLocation(provider);
    if (loc != null) {
        return CameraUpdateFactory.newCameraPosition(
                CameraPosition.fromLatLngZoom(new LatLng(loc.getLatitude(), loc.getLongitude()), 14.0f));
    }
    return null;
}

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From source file:com.example.scrumptious.PickerActivity.java

@Override
protected void onStart() {
    super.onStart();
    if (FRIEND_PICKER.equals(getIntent().getData())) {
        try {//from w w  w  . jav  a  2 s . c om
            friendPickerFragment.loadData(false);
        } catch (Exception ex) {
            onError(ex);
        }
    } else if (PLACE_PICKER.equals(getIntent().getData())) {
        try {
            Location location = null;
            Criteria criteria = new Criteria();
            LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
            String bestProvider = locationManager.getBestProvider(criteria, false);
            if (bestProvider != null) {
                location = locationManager.getLastKnownLocation(bestProvider);
                if (locationManager.isProviderEnabled(bestProvider) && locationListener == null) {
                    locationListener = new LocationListener() {
                        @Override
                        public void onLocationChanged(Location location) {
                            boolean updateLocation = true;
                            Location prevLocation = placePickerFragment.getLocation();
                            if (prevLocation != null) {
                                updateLocation = location.distanceTo(prevLocation) >= LOCATION_CHANGE_THRESHOLD;
                            }
                            if (updateLocation) {
                                placePickerFragment.setLocation(location);
                                placePickerFragment.loadData(true);
                            }
                        }

                        @Override
                        public void onStatusChanged(String s, int i, Bundle bundle) {
                        }

                        @Override
                        public void onProviderEnabled(String s) {
                        }

                        @Override
                        public void onProviderDisabled(String s) {
                        }
                    };
                    locationManager.requestLocationUpdates(bestProvider, 1, LOCATION_CHANGE_THRESHOLD,
                            locationListener, Looper.getMainLooper());
                }
            }
            if (location != null) {
                placePickerFragment.setLocation(location);
                placePickerFragment.setRadiusInMeters(SEARCH_RADIUS_METERS);
                placePickerFragment.setSearchText(SEARCH_TEXT);
                placePickerFragment.setResultsLimit(SEARCH_RESULT_LIMIT);
                placePickerFragment.loadData(false);
            }
        } catch (Exception ex) {
            onError(ex);
        }
    }
}

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From source file:org.ohmage.triggers.base.TriggerBase.java

public void notifyTrigger(Context context, int trigId) {
    Log.i(DEBUG_TAG, "TriggerBase: notifyTrigger(" + trigId + ")");

    TriggerDB db = new TriggerDB(context);
    db.open();//from  w ww.j a v a  2s.c  o m

    String rtDesc = db.getRunTimeDescription(trigId);
    TriggerRunTimeDesc desc = new TriggerRunTimeDesc();

    desc.loadString(rtDesc);

    //Save trigger time stamp in the run time description 
    desc.setTriggerTimeStamp(System.currentTimeMillis());
    //Save trigger current loc in the run time description 
    LocationManager locMan = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    Location loc = locMan.getLastKnownLocation(LocationManager.GPS_PROVIDER);
    desc.setTriggerLocation(loc);

    //Save the run time desc in the database
    db.updateRunTimeDescription(trigId, desc.toString());

    //Call the notifier to display the notification
    //Pass the notification description corresponding to this trigger
    Notifier.notifyNewTrigger(context, trigId, db.getNotifDescription(trigId));
    db.close();
}

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From source file:com.example.snapcacheexample.PickerActivity.java

@Override
protected void onStart() {
    super.onStart();
    if (FRIEND_PICKER.equals(getIntent().getData())) {
        try {/*  w  w  w .j a v  a 2s. c o m*/
            friendPickerFragment.loadData(false);
        } catch (Exception ex) {
            onError(ex);
        }
    } else if (PLACE_PICKER.equals(getIntent().getData())) {
        try {
            Location location = null;
            Criteria criteria = new Criteria();
            LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
            String bestProvider = locationManager.getBestProvider(criteria, false);
            if (bestProvider != null) {
                location = locationManager.getLastKnownLocation(bestProvider);
                if (locationManager.isProviderEnabled(bestProvider) && locationListener == null) {
                    locationListener = new LocationListener() {
                        @Override
                        public void onLocationChanged(Location location) {
                            float distance = location.distanceTo(placePickerFragment.getLocation());
                            if (distance >= LOCATION_CHANGE_THRESHOLD) {
                                placePickerFragment.setLocation(location);
                                placePickerFragment.loadData(true);
                            }
                        }

                        @Override
                        public void onStatusChanged(String s, int i, Bundle bundle) {
                        }

                        @Override
                        public void onProviderEnabled(String s) {
                        }

                        @Override
                        public void onProviderDisabled(String s) {
                        }
                    };
                    locationManager.requestLocationUpdates(bestProvider, 1, LOCATION_CHANGE_THRESHOLD,
                            locationListener, Looper.getMainLooper());
                }
            }
            if (location == null) {
                String model = Build.MODEL;
                if (model.equals("sdk") || model.equals("google_sdk") || model.contains("x86")) {
                    // this may be the emulator, pretend we're in an exotic place
                    location = SAN_FRANCISCO_LOCATION;
                }
            }
            if (location != null) {
                placePickerFragment.setLocation(location);
                placePickerFragment.setRadiusInMeters(SEARCH_RADIUS_METERS);
                placePickerFragment.setSearchText(SEARCH_TEXT);
                placePickerFragment.setResultsLimit(SEARCH_RESULT_LIMIT);
                placePickerFragment.loadData(false);
            } else {
                onError(getResources().getString(R.string.no_location_error), true);
            }
        } catch (Exception ex) {
            onError(ex);
        }
    }
}

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From source file:com.example.david.wheretogo_test1.PickerActivity.java

@Override
protected void onStart() {
    super.onStart();
    if (FRIEND_PICKER.equals(getIntent().getData())) {
        try {//  w  ww  .  ja  va2s. c  o  m
            friendPickerFragment.loadData(false);
        } catch (Exception ex) {
            onError(ex);
        }
    } else if (PLACE_PICKER.equals(getIntent().getData())) {
        try {
            Location location = null;
            Criteria criteria = new Criteria();
            LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
            String bestProvider = locationManager.getBestProvider(criteria, false);
            if (bestProvider != null) {
                location = locationManager.getLastKnownLocation(bestProvider);
                if (locationManager.isProviderEnabled(bestProvider) && locationListener == null) {
                    locationListener = new LocationListener() {
                        @Override
                        public void onLocationChanged(Location location) {
                            boolean updateLocation = true;
                            Location prevLocation = placePickerFragment.getLocation();
                            if (prevLocation != null) {
                                updateLocation = location.distanceTo(prevLocation) >= LOCATION_CHANGE_THRESHOLD;
                            }
                            if (updateLocation) {
                                placePickerFragment.setLocation(location);
                                placePickerFragment.loadData(true);
                            }
                        }

                        @Override
                        public void onStatusChanged(String s, int i, Bundle bundle) {
                        }

                        @Override
                        public void onProviderEnabled(String s) {
                        }

                        @Override
                        public void onProviderDisabled(String s) {
                        }
                    };
                    locationManager.requestLocationUpdates(bestProvider, 1, LOCATION_CHANGE_THRESHOLD,
                            locationListener, Looper.getMainLooper());
                }
            }
            if (location == null) {
                String model = Build.MODEL;
                if (model.equals("sdk") || model.equals("google_sdk") || model.contains("x86")) {
                    // this may be the emulator, pretend we're in an exotic place
                    location = SAN_FRANCISCO_LOCATION;
                }
            }
            if (location != null) {
                placePickerFragment.setLocation(location);
                placePickerFragment.setRadiusInMeters(SEARCH_RADIUS_METERS);
                placePickerFragment.setSearchText(SEARCH_TEXT);
                placePickerFragment.setResultsLimit(SEARCH_RESULT_LIMIT);
                placePickerFragment.loadData(false);
            } else {
                onError(getResources().getString(R.string.no_location_error), true);
            }
        } catch (Exception ex) {
            onError(ex);
        }
    }
}

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From source file:nodomain.freeyourgadget.gadgetbridge.service.devices.pebble.webview.CurrentPosition.java

public CurrentPosition() {
    Prefs prefs = GBApplication.getPrefs();
    this.latitude = prefs.getFloat("location_latitude", 0);
    this.longitude = prefs.getFloat("location_longitude", 0);

    lastKnownLocation = new Location("preferences");
    lastKnownLocation.setLatitude(this.latitude);
    lastKnownLocation.setLongitude(this.longitude);

    LOG.info("got longitude/latitude from preferences: " + latitude + "/" + longitude);

    this.timestamp = System.currentTimeMillis() - 86400000; //let accessor know this value is really old

    if (ActivityCompat.checkSelfPermission(GBApplication.getContext(),
            Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED
            && prefs.getBoolean("use_updated_location_if_available", false)) {
        LocationManager locationManager = (LocationManager) GBApplication.getContext()
                .getSystemService(Context.LOCATION_SERVICE);
        Criteria criteria = new Criteria();
        String provider = null;/* ww  w  .  ja  v a2  s . c o m*/
        if (locationManager != null) {
            provider = locationManager.getBestProvider(criteria, false);
        }
        if (provider != null) {
            Location lastKnownLocation = locationManager.getLastKnownLocation(provider);
            if (lastKnownLocation != null) {
                this.lastKnownLocation = lastKnownLocation;
                this.timestamp = lastKnownLocation.getTime();
                this.timestamp = System.currentTimeMillis() - 1000; //TODO: request updating the location and don't fake its age

                this.latitude = (float) lastKnownLocation.getLatitude();
                this.longitude = (float) lastKnownLocation.getLongitude();
                this.accuracy = lastKnownLocation.getAccuracy();
                this.altitude = (float) lastKnownLocation.getAltitude();
                this.speed = lastKnownLocation.getSpeed();
            }
        }
    }
}

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From source file:com.adwhirl.AdWhirlManager.java

public Location getLocation() {
    if (contextReference == null) {
        return null;
    }//  ww w  .j  av  a 2 s.c o  m

    Context context = contextReference.get();
    if (context == null) {
        return null;
    }

    Location location = null;

    if (context.checkCallingOrSelfPermission(
            android.Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
        LocationManager lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
        location = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
    } else if (context.checkCallingOrSelfPermission(
            android.Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
        LocationManager lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
        location = lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
    }
    return location;
}

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From source file:com.nextgis.maplibui.fragment.CompassFragment.java

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

    if (null == getParentFragment()) {
        setRetainInstance(true);//www .j a  v  a  2s .  co  m
    }

    // reference to vibrator service
    mDeclination = 0;
    mVibrator = (Vibrator) getActivity().getSystemService(Context.VIBRATOR_SERVICE);
    mSensorManager = (SensorManager) getActivity().getSystemService(Context.SENSOR_SERVICE);

    if (!PermissionUtil.hasPermission(getActivity(), Manifest.permission.ACCESS_FINE_LOCATION)
            || !PermissionUtil.hasPermission(getActivity(), Manifest.permission.ACCESS_COARSE_LOCATION))
        return;

    if (mCurrentLocation == null) {
        LocationManager locationManager = (LocationManager) getActivity()
                .getSystemService(Context.LOCATION_SERVICE);
        mCurrentLocation = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);

        if (mCurrentLocation == null) {
            mCurrentLocation = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
        }
    }

    if (mCurrentLocation != null)
        mDeclination = getDeclination(mCurrentLocation, System.currentTimeMillis());
}

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