Example usage for android.location LocationManager requestLocationUpdates

List of usage examples for android.location LocationManager requestLocationUpdates

  1. HOME
  2. Java
  3. android
  4. android.location.*
  5. LocationManager
  6. requestLocationUpdates

Introduction

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

Prototype

@RequiresPermission(anyOf = { ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION })
public void requestLocationUpdates(long minTime, float minDistance, Criteria criteria,
        LocationListener listener, Looper looper)

Source Link

Document

Register for location updates using a Criteria, and a callback on the specified looper thread.

Usage

From source file:org.microg.gms.maps.GoogleMapImpl.java

@Override
public void setMyLocationEnabled(boolean myLocation) throws RemoteException {
    Log.w(TAG, "MyLocation not yet supported");
    boolean hasPermission = ContextCompat.checkSelfPermission(context,
            ACCESS_COARSE_LOCATION) == PERMISSION_GRANTED
            || ContextCompat.checkSelfPermission(context, ACCESS_FINE_LOCATION) == PERMISSION_GRANTED;
    if (!hasPermission) {
        throw new SecurityException(
                "Neither " + ACCESS_COARSE_LOCATION + " nor " + ACCESS_FINE_LOCATION + " granted.");
    }/*  ww  w.  j av  a 2s . co  m*/
    LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    if (myLocation) {
        locationManager.requestLocationUpdates(5000, 10, criteria, listener, Looper.getMainLooper());
    } else {
        locationManager.removeUpdates(listener);
    }
}

From source file:de.madvertise.android.sdk.MadUtil.java

/**
 * Try to update current location. Non blocking call.
 * //from   ww w  . j a va  2  s. c  o  m
 * @param context
 *            application context
 */
protected static void refreshCoordinates(Context context) {
    if (PRINT_LOG)
        Log.d(LOG, "Trying to refresh location");

    if (context == null) {
        if (PRINT_LOG)
            Log.d(LOG, "Context not set - quit location refresh");
        return;
    }

    // check if we need a regular update
    if ((locationUpdateTimestamp + MadUtil.SECONDS_TO_REFRESH_LOCATION * 1000) > System.currentTimeMillis()) {
        if (PRINT_LOG)
            Log.d(LOG, "It's not time yet for refreshing the location");
        return;
    }

    synchronized (context) {
        // recheck, if location was updated by another thread while we paused
        if ((locationUpdateTimestamp + MadUtil.SECONDS_TO_REFRESH_LOCATION * 1000) > System
                .currentTimeMillis()) {
            if (PRINT_LOG)
                Log.d(LOG, "Another thread updated the loation already");
            return;
        }

        boolean permissionCoarseLocation = context.checkCallingOrSelfPermission(
                android.Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED;
        boolean permissionFineLocation = context.checkCallingOrSelfPermission(
                android.Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED;

        // return (null) if we do not have any permissions
        if (!permissionCoarseLocation && !permissionFineLocation) {
            if (PRINT_LOG)
                Log.d(LOG, "No permissions for requesting the location");
            return;
        }

        // return (null) if we can't get a location manager
        LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
        if (locationManager == null) {
            if (PRINT_LOG)
                Log.d(LOG, "Unable to fetch a location manger");
            return;
        }

        String provider = null;
        Criteria criteria = new Criteria();
        criteria.setCostAllowed(false);

        // try to get coarse location first
        if (permissionCoarseLocation) {
            criteria.setAccuracy(Criteria.ACCURACY_COARSE);
            provider = locationManager.getBestProvider(criteria, true);
        }

        // try to get gps location if coarse locatio did not work
        if (provider == null && permissionFineLocation) {
            criteria.setAccuracy(Criteria.ACCURACY_FINE);
            provider = locationManager.getBestProvider(criteria, true);
        }

        // still no provider, return (null)
        if (provider == null) {
            if (PRINT_LOG)
                Log.d(LOG, "Unable to fetch a location provider");
            return;
        }

        // create a finalized reference to the location manager, in order to
        // access it in the inner class
        final LocationManager finalizedLocationManager = locationManager;
        locationUpdateTimestamp = System.currentTimeMillis();
        locationManager.requestLocationUpdates(provider, 0, 0, new LocationListener() {
            public void onLocationChanged(Location location) {
                if (PRINT_LOG)
                    Log.d(LOG, "Refreshing location");
                currentLocation = location;
                locationUpdateTimestamp = System.currentTimeMillis();
                // stop draining battery life
                finalizedLocationManager.removeUpdates(this);
            }

            // not used yet
            public void onProviderDisabled(String provider) {
            }

            public void onProviderEnabled(String provider) {
            }

            public void onStatusChanged(String provider, int status, Bundle extras) {
            }
        }, context.getMainLooper());
    }
}

From source file:de.madvertise.android.sdk.MadvertiseUtil.java

/**
 * Try to update current location. Non blocking call.
 * /*ww w. j a  va  2 s .co m*/
 * @param context
 *            application context
 */
public static void refreshCoordinates(final Context context) {
    MadvertiseUtil.logMessage(null, Log.DEBUG, "Trying to refresh location");

    if (context == null) {
        MadvertiseUtil.logMessage(null, Log.DEBUG, "Context not set - quit location refresh");
        return;
    }

    // check if we need a regular update
    if ((sLocationUpdateTimestamp + MadvertiseUtil.SECONDS_TO_REFRESH_LOCATION * 1000) > System
            .currentTimeMillis()) {
        MadvertiseUtil.logMessage(null, Log.DEBUG, "It's not time yet for refreshing the location");
        return;
    }

    synchronized (context) {
        // recheck, if location was updated by another thread while we
        // paused
        if ((sLocationUpdateTimestamp + MadvertiseUtil.SECONDS_TO_REFRESH_LOCATION * 1000) > System
                .currentTimeMillis()) {
            MadvertiseUtil.logMessage(null, Log.DEBUG, "Another thread updated the loation already");
            return;
        }

        boolean permissionCoarseLocation = MadvertiseUtil
                .checkPermissionGranted(android.Manifest.permission.ACCESS_COARSE_LOCATION, context);
        boolean permissionFineLocation = MadvertiseUtil
                .checkPermissionGranted(android.Manifest.permission.ACCESS_FINE_LOCATION, context);

        // return (null) if we do not have any permissions
        if (!permissionCoarseLocation && !permissionFineLocation) {
            MadvertiseUtil.logMessage(null, Log.DEBUG, "No permissions for requesting the location");
            return;
        }

        // return (null) if we can't get a location manager
        LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
        if (locationManager == null) {
            MadvertiseUtil.logMessage(null, Log.DEBUG, "Unable to fetch a location manger");
            return;
        }

        String provider = null;
        Criteria criteria = new Criteria();
        criteria.setCostAllowed(false);

        // try to get coarse location first
        if (permissionCoarseLocation) {
            criteria.setAccuracy(Criteria.ACCURACY_COARSE);
            provider = locationManager.getBestProvider(criteria, true);
        }

        // try to get gps location if coarse locatio did not work
        if (provider == null && permissionFineLocation) {
            criteria.setAccuracy(Criteria.ACCURACY_FINE);
            provider = locationManager.getBestProvider(criteria, true);
        }

        // still no provider, return (null)
        if (provider == null) {
            MadvertiseUtil.logMessage(null, Log.DEBUG, "Unable to fetch a location provider");
            return;
        }

        // create a finalized reference to the location manager, in order to
        // access it in the inner class
        final LocationManager finalizedLocationManager = locationManager;
        sLocationUpdateTimestamp = System.currentTimeMillis();
        locationManager.requestLocationUpdates(provider, 0, 0, new LocationListener() {
            @Override
            public void onLocationChanged(Location location) {
                MadvertiseUtil.logMessage(null, Log.DEBUG, "Refreshing location");
                sCurrentLocation = location;
                sLocationUpdateTimestamp = System.currentTimeMillis();
                // stop draining battery life
                finalizedLocationManager.removeUpdates(this);
            }

            // not used yet
            @Override
            public void onProviderDisabled(String provider) {
            }

            @Override
            public void onProviderEnabled(String provider) {
            }

            @Override
            public void onStatusChanged(String provider, int status, Bundle extras) {
            }
        }, context.getMainLooper());
    }
}

From source file:org.mozilla.gecko.GeckoAppShell.java

public static void enableLocation(final boolean enable) {
    getMainHandler().post(new Runnable() {
        public void run() {
            LayerView v = GeckoApp.mAppContext.getLayerController().getView();

            LocationManager lm = (LocationManager) GeckoApp.mAppContext
                    .getSystemService(Context.LOCATION_SERVICE);

            if (enable) {
                Criteria criteria = new Criteria();
                String provider = lm.getBestProvider(criteria, true);
                if (provider == null)
                    return;

                Looper l = Looper.getMainLooper();
                Location loc = lm.getLastKnownLocation(provider);
                if (loc != null) {
                    GeckoApp.mAppContext.onLocationChanged(loc);
                }/*from w  w  w.ja v  a  2 s .  co  m*/
                lm.requestLocationUpdates(provider, 100, (float) .5, GeckoApp.mAppContext, l);
            } else {
                lm.removeUpdates(GeckoApp.mAppContext);
            }
        }
    });
}

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

@Override
protected void onStart() {
    super.onStart();
    if (FRIEND_PICKER.equals(getIntent().getData())) {
        try {//from ww w.j av a2s  .  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);
        }
    }
}

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

@Override
protected void onStart() {
    super.onStart();
    if (FRIEND_PICKER.equals(getIntent().getData())) {
        try {//from ww w.  jav a  2 s .  co 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) {
                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);
        }
    }
}

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

@Override
protected void onStart() {
    super.onStart();
    if (FRIEND_PICKER.equals(getIntent().getData())) {
        try {//  ww  w  .  j  a va  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) {
                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);
        }
    }
}

From source file:heartware.com.heartware_master.FB_PickerActivity.java

@Override
protected void onStart() {
    super.onStart();
    if (FRIEND_PICKER.equals(getIntent().getData())) {
        try {/*  w ww  . j  a v 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) {
                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 = TEMPE_AZ_LOCATION;
                }
                location = TEMPE_AZ_LOCATION; // @TODO HARDCODED location
            }
            if (location != null) {
                location = TEMPE_AZ_LOCATION;
                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);
        }
    }
}

From source file:com.eutectoid.dosomething.PickerActivity.java

@Override
protected void onStart() {
    super.onStart();
    if (FRIEND_PICKER.equals(getIntent().getData())) {
        try {// www  .  j  a v  a 2 s.  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);
            // API 23: we have to check if ACCESS_FINE_LOCATION and/or ACCESS_COARSE_LOCATION permission are granted
            if (ContextCompat.checkSelfPermission(this,
                    android.Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED
                    || ContextCompat.checkSelfPermission(this,
                            android.Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
                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);
        }
    }
}

From source file:com.mobilyzer.util.PhoneUtils.java

/**
 * Lazily initializes the location manager.
 *
 * As a side effect, assigns locationManager and locationProviderName.
 *//*from w ww  .  j a  va  2  s.c om*/
private synchronized void initLocation() {
    if (locationManager == null) {
        LocationManager manager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);

        Criteria criteriaCoarse = new Criteria();
        /* "Coarse" accuracy means "no need to use GPS".
         * Typically a gShots phone would be located in a building,
         * and GPS may not be able to acquire a location.
         * We only care about the location to determine the country,
         * so we don't need a super accurate location, cell/wifi is good enough.
         */
        criteriaCoarse.setAccuracy(Criteria.ACCURACY_COARSE);
        criteriaCoarse.setPowerRequirement(Criteria.POWER_LOW);
        String providerName = manager.getBestProvider(criteriaCoarse, /*enabledOnly=*/true);

        List<String> providers = manager.getAllProviders();
        for (String providerNameIter : providers) {
            try {
                LocationProvider provider = manager.getProvider(providerNameIter);
            } catch (SecurityException se) {
                // Not allowed to use this provider
                Logger.w("Unable to use provider " + providerNameIter);
                continue;
            }
            Logger.i(providerNameIter + ": "
                    + (manager.isProviderEnabled(providerNameIter) ? "enabled" : "disabled"));
        }

        /* Make sure the provider updates its location.
         * Without this, we may get a very old location, even a
         * device powercycle may not update it.
         * {@see android.location.LocationManager.getLastKnownLocation}.
         */
        manager.requestLocationUpdates(providerName, /*minTime=*/0, /*minDistance=*/0,
                new LoggingLocationListener(), Looper.getMainLooper());
        locationManager = manager;
        locationProviderName = providerName;
    }
    assert locationManager != null;
    assert locationProviderName != null;
}