/* * Copyright (C) 2007 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package android.location; import com.android.internal.location.ProviderProperties; import android.Manifest; import android.annotation.RequiresPermission; import android.annotation.SuppressLint; import android.annotation.SystemApi; import android.annotation.SystemService; import android.annotation.TestApi; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.os.Build; import android.os.Bundle; import android.os.Handler; import android.os.Looper; import android.os.Message; import android.os.RemoteException; import android.util.Log; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import static android.Manifest.permission.ACCESS_COARSE_LOCATION; import static android.Manifest.permission.ACCESS_FINE_LOCATION; /** * This class provides access to the system location services. These * services allow applications to obtain periodic updates of the * device's geographical location, or to fire an application-specified * {@link Intent} when the device enters the proximity of a given * geographical location. * *

Unless noted, all Location API methods require * the {@link android.Manifest.permission#ACCESS_COARSE_LOCATION} or * {@link android.Manifest.permission#ACCESS_FINE_LOCATION} permissions. * If your application only has the coarse permission then it will not have * access to the GPS or passive location providers. Other providers will still * return location results, but the update rate will be throttled and the exact * location will be obfuscated to a coarse level of accuracy. */ @SystemService(Context.LOCATION_SERVICE) public class LocationManager { private static final String TAG = "LocationManager"; private final Context mContext; private final ILocationManager mService; private final GnssMeasurementCallbackTransport mGnssMeasurementCallbackTransport; private final GnssNavigationMessageCallbackTransport mGnssNavigationMessageCallbackTransport; private final BatchedLocationCallbackTransport mBatchedLocationCallbackTransport; private final HashMap mGpsStatusListeners = new HashMap<>(); private final HashMap mGpsNmeaListeners = new HashMap<>(); private final HashMap mGnssStatusListeners = new HashMap<>(); private final HashMap mGnssNmeaListeners = new HashMap<>(); // volatile + GnssStatus final-fields pattern to avoid a partially published object private volatile GnssStatus mGnssStatus; private int mTimeToFirstFix; /** * Name of the network location provider. *

This provider determines location based on * availability of cell tower and WiFi access points. Results are retrieved * by means of a network lookup. */ public static final String NETWORK_PROVIDER = "network"; /** * Name of the GPS location provider. * *

This provider determines location using * satellites. Depending on conditions, this provider may take a while to return * a location fix. Requires the permission * {@link android.Manifest.permission#ACCESS_FINE_LOCATION}. * *

The extras Bundle for the GPS location provider can contain the * following key/value pairs: *

*/ public static final String GPS_PROVIDER = "gps"; /** * A special location provider for receiving locations without actually initiating * a location fix. * *

This provider can be used to passively receive location updates * when other applications or services request them without actually requesting * the locations yourself. This provider will return locations generated by other * providers. You can query the {@link Location#getProvider()} method to determine * the origin of the location update. Requires the permission * {@link android.Manifest.permission#ACCESS_FINE_LOCATION}, although if the GPS is * not enabled this provider might only return coarse fixes. */ public static final String PASSIVE_PROVIDER = "passive"; /** * Name of the Fused location provider. * *

This provider combines inputs for all possible location sources * to provide the best possible Location fix. It is implicitly * used for all API's that involve the {@link LocationRequest} * object. * * @hide */ public static final String FUSED_PROVIDER = "fused"; /** * Key used for the Bundle extra holding a boolean indicating whether * a proximity alert is entering (true) or exiting (false).. */ public static final String KEY_PROXIMITY_ENTERING = "entering"; /** * Key used for a Bundle extra holding an Integer status value * when a status change is broadcast using a PendingIntent. */ public static final String KEY_STATUS_CHANGED = "status"; /** * Key used for a Bundle extra holding an Boolean status value * when a provider enabled/disabled event is broadcast using a PendingIntent. */ public static final String KEY_PROVIDER_ENABLED = "providerEnabled"; /** * Key used for a Bundle extra holding a Location value * when a location change is broadcast using a PendingIntent. */ public static final String KEY_LOCATION_CHANGED = "location"; /** * Broadcast intent action indicating that the GPS has either been * enabled or disabled. An intent extra provides this state as a boolean, * where {@code true} means enabled. * @see #EXTRA_GPS_ENABLED * * @hide */ public static final String GPS_ENABLED_CHANGE_ACTION = "android.location.GPS_ENABLED_CHANGE"; /** * Broadcast intent action when the configured location providers * change. For use with {@link #isProviderEnabled(String)}. If you're interacting with the * {@link android.provider.Settings.Secure#LOCATION_MODE} API, use {@link #MODE_CHANGED_ACTION} * instead. */ public static final String PROVIDERS_CHANGED_ACTION = "android.location.PROVIDERS_CHANGED"; /** * Broadcast intent action when {@link android.provider.Settings.Secure#LOCATION_MODE} changes. * For use with the {@link android.provider.Settings.Secure#LOCATION_MODE} API. * If you're interacting with {@link #isProviderEnabled(String)}, use * {@link #PROVIDERS_CHANGED_ACTION} instead. * * In the future, there may be mode changes that do not result in * {@link #PROVIDERS_CHANGED_ACTION} broadcasts. */ public static final String MODE_CHANGED_ACTION = "android.location.MODE_CHANGED"; /** * Broadcast intent action indicating that the GPS has either started or * stopped receiving GPS fixes. An intent extra provides this state as a * boolean, where {@code true} means that the GPS is actively receiving fixes. * @see #EXTRA_GPS_ENABLED * * @hide */ public static final String GPS_FIX_CHANGE_ACTION = "android.location.GPS_FIX_CHANGE"; /** * The lookup key for a boolean that indicates whether GPS is enabled or * disabled. {@code true} means GPS is enabled. Retrieve it with * {@link android.content.Intent#getBooleanExtra(String,boolean)}. * * @hide */ public static final String EXTRA_GPS_ENABLED = "enabled"; /** * Broadcast intent action indicating that a high power location requests * has either started or stopped being active. The current state of * active location requests should be read from AppOpsManager using * {@code OP_MONITOR_HIGH_POWER_LOCATION}. * * @hide */ public static final String HIGH_POWER_REQUEST_CHANGE_ACTION = "android.location.HIGH_POWER_REQUEST_CHANGE"; // Map from LocationListeners to their associated ListenerTransport objects private HashMap mListeners = new HashMap(); private class ListenerTransport extends ILocationListener.Stub { private static final int TYPE_LOCATION_CHANGED = 1; private static final int TYPE_STATUS_CHANGED = 2; private static final int TYPE_PROVIDER_ENABLED = 3; private static final int TYPE_PROVIDER_DISABLED = 4; private LocationListener mListener; private final Handler mListenerHandler; ListenerTransport(LocationListener listener, Looper looper) { mListener = listener; if (looper == null) { mListenerHandler = new Handler() { @Override public void handleMessage(Message msg) { _handleMessage(msg); } }; } else { mListenerHandler = new Handler(looper) { @Override public void handleMessage(Message msg) { _handleMessage(msg); } }; } } @Override public void onLocationChanged(Location location) { Message msg = Message.obtain(); msg.what = TYPE_LOCATION_CHANGED; msg.obj = location; mListenerHandler.sendMessage(msg); } @Override public void onStatusChanged(String provider, int status, Bundle extras) { Message msg = Message.obtain(); msg.what = TYPE_STATUS_CHANGED; Bundle b = new Bundle(); b.putString("provider", provider); b.putInt("status", status); if (extras != null) { b.putBundle("extras", extras); } msg.obj = b; mListenerHandler.sendMessage(msg); } @Override public void onProviderEnabled(String provider) { Message msg = Message.obtain(); msg.what = TYPE_PROVIDER_ENABLED; msg.obj = provider; mListenerHandler.sendMessage(msg); } @Override public void onProviderDisabled(String provider) { Message msg = Message.obtain(); msg.what = TYPE_PROVIDER_DISABLED; msg.obj = provider; mListenerHandler.sendMessage(msg); } private void _handleMessage(Message msg) { switch (msg.what) { case TYPE_LOCATION_CHANGED: Location location = new Location((Location) msg.obj); mListener.onLocationChanged(location); break; case TYPE_STATUS_CHANGED: Bundle b = (Bundle) msg.obj; String provider = b.getString("provider"); int status = b.getInt("status"); Bundle extras = b.getBundle("extras"); mListener.onStatusChanged(provider, status, extras); break; case TYPE_PROVIDER_ENABLED: mListener.onProviderEnabled((String) msg.obj); break; case TYPE_PROVIDER_DISABLED: mListener.onProviderDisabled((String) msg.obj); break; } try { mService.locationCallbackFinished(this); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } } /** * @hide - hide this constructor because it has a parameter * of type ILocationManager, which is a system private class. The * right way to create an instance of this class is using the * factory Context.getSystemService. */ public LocationManager(Context context, ILocationManager service) { mService = service; mContext = context; mGnssMeasurementCallbackTransport = new GnssMeasurementCallbackTransport(mContext, mService); mGnssNavigationMessageCallbackTransport = new GnssNavigationMessageCallbackTransport(mContext, mService); mBatchedLocationCallbackTransport = new BatchedLocationCallbackTransport(mContext, mService); } private LocationProvider createProvider(String name, ProviderProperties properties) { return new LocationProvider(name, properties); } /** * Returns a list of the names of all known location providers. *

All providers are returned, including ones that are not permitted to * be accessed by the calling activity or are currently disabled. * * @return list of Strings containing names of the provider */ public List getAllProviders() { try { return mService.getAllProviders(); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Returns a list of the names of location providers. * * @param enabledOnly if true then only the providers which are currently * enabled are returned. * @return list of Strings containing names of the providers */ public List getProviders(boolean enabledOnly) { try { return mService.getProviders(null, enabledOnly); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Returns the information associated with the location provider of the * given name, or null if no provider exists by that name. * * @param name the provider name * @return a LocationProvider, or null * * @throws IllegalArgumentException if name is null or does not exist * @throws SecurityException if the caller is not permitted to access the * given provider. */ public LocationProvider getProvider(String name) { checkProvider(name); try { ProviderProperties properties = mService.getProviderProperties(name); if (properties == null) { return null; } return createProvider(name, properties); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Returns a list of the names of LocationProviders that satisfy the given * criteria, or null if none do. Only providers that are permitted to be * accessed by the calling activity will be returned. * * @param criteria the criteria that the returned providers must match * @param enabledOnly if true then only the providers which are currently * enabled are returned. * @return list of Strings containing names of the providers */ public List getProviders(Criteria criteria, boolean enabledOnly) { checkCriteria(criteria); try { return mService.getProviders(criteria, enabledOnly); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Returns the name of the provider that best meets the given criteria. Only providers * that are permitted to be accessed by the calling activity will be * returned. If several providers meet the criteria, the one with the best * accuracy is returned. If no provider meets the criteria, * the criteria are loosened in the following sequence: * *

* *

Note that the requirement on monetary cost is not removed * in this process. * * @param criteria the criteria that need to be matched * @param enabledOnly if true then only a provider that is currently enabled is returned * @return name of the provider that best matches the requirements */ public String getBestProvider(Criteria criteria, boolean enabledOnly) { checkCriteria(criteria); try { return mService.getBestProvider(criteria, enabledOnly); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Register for location updates using the named provider, and a * pending intent. * *

See {@link #requestLocationUpdates(long, float, Criteria, PendingIntent)} * for more detail on how to use this method. * * @param provider the name of the provider with which to register * @param minTime minimum time interval between location updates, in milliseconds * @param minDistance minimum distance between location updates, in meters * @param listener a {@link LocationListener} whose * {@link LocationListener#onLocationChanged} method will be called for * each location update * * @throws IllegalArgumentException if provider is null or doesn't exist * on this device * @throws IllegalArgumentException if listener is null * @throws RuntimeException if the calling thread has no Looper * @throws SecurityException if no suitable permission is present */ @RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION}) public void requestLocationUpdates(String provider, long minTime, float minDistance, LocationListener listener) { checkProvider(provider); checkListener(listener); LocationRequest request = LocationRequest.createFromDeprecatedProvider( provider, minTime, minDistance, false); requestLocationUpdates(request, listener, null, null); } /** * Register for location updates using the named provider, and a callback on * the specified looper thread. * *

See {@link #requestLocationUpdates(long, float, Criteria, PendingIntent)} * for more detail on how to use this method. * * @param provider the name of the provider with which to register * @param minTime minimum time interval between location updates, in milliseconds * @param minDistance minimum distance between location updates, in meters * @param listener a {@link LocationListener} whose * {@link LocationListener#onLocationChanged} method will be called for * each location update * @param looper a Looper object whose message queue will be used to * implement the callback mechanism, or null to make callbacks on the calling * thread * * @throws IllegalArgumentException if provider is null or doesn't exist * @throws IllegalArgumentException if listener is null * @throws SecurityException if no suitable permission is present */ @RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION}) public void requestLocationUpdates(String provider, long minTime, float minDistance, LocationListener listener, Looper looper) { checkProvider(provider); checkListener(listener); LocationRequest request = LocationRequest.createFromDeprecatedProvider( provider, minTime, minDistance, false); requestLocationUpdates(request, listener, looper, null); } /** * Register for location updates using a Criteria, and a callback * on the specified looper thread. * *

See {@link #requestLocationUpdates(long, float, Criteria, PendingIntent)} * for more detail on how to use this method. * * @param minTime minimum time interval between location updates, in milliseconds * @param minDistance minimum distance between location updates, in meters * @param criteria contains parameters for the location manager to choose the * appropriate provider and parameters to compute the location * @param listener a {@link LocationListener} whose * {@link LocationListener#onLocationChanged} method will be called for * each location update * @param looper a Looper object whose message queue will be used to * implement the callback mechanism, or null to make callbacks on the calling * thread * * @throws IllegalArgumentException if criteria is null * @throws IllegalArgumentException if listener is null * @throws SecurityException if no suitable permission is present */ @RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION}) public void requestLocationUpdates(long minTime, float minDistance, Criteria criteria, LocationListener listener, Looper looper) { checkCriteria(criteria); checkListener(listener); LocationRequest request = LocationRequest.createFromDeprecatedCriteria( criteria, minTime, minDistance, false); requestLocationUpdates(request, listener, looper, null); } /** * Register for location updates using the named provider, and a * pending intent. * *

See {@link #requestLocationUpdates(long, float, Criteria, PendingIntent)} * for more detail on how to use this method. * * @param provider the name of the provider with which to register * @param minTime minimum time interval between location updates, in milliseconds * @param minDistance minimum distance between location updates, in meters * @param intent a {@link PendingIntent} to be sent for each location update * * @throws IllegalArgumentException if provider is null or doesn't exist * on this device * @throws IllegalArgumentException if intent is null * @throws SecurityException if no suitable permission is present */ @RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION}) public void requestLocationUpdates(String provider, long minTime, float minDistance, PendingIntent intent) { checkProvider(provider); checkPendingIntent(intent); LocationRequest request = LocationRequest.createFromDeprecatedProvider( provider, minTime, minDistance, false); requestLocationUpdates(request, null, null, intent); } /** * Register for location updates using a Criteria and pending intent. * *

The requestLocationUpdates() and * requestSingleUpdate() register the current activity to be * updated periodically by the named provider, or by the provider matching * the specified {@link Criteria}, with location and status updates. * *

It may take a while to receive the first location update. If * an immediate location is required, applications may use the * {@link #getLastKnownLocation(String)} method. * *

Location updates are received either by {@link LocationListener} * callbacks, or by broadcast intents to a supplied {@link PendingIntent}. * *

If the caller supplied a pending intent, then location updates * are sent with a key of {@link #KEY_LOCATION_CHANGED} and a * {@link android.location.Location} value. * *

The location update interval can be controlled using the minTime parameter. * The elapsed time between location updates will never be less than * minTime, although it can be more depending on the Location Provider * implementation and the update interval requested by other applications. * *

Choosing a sensible value for minTime is important to conserve * battery life. Each location update requires power from * GPS, WIFI, Cell and other radios. Select a minTime value as high as * possible while still providing a reasonable user experience. * If your application is not in the foreground and showing * location to the user then your application should avoid using an active * provider (such as {@link #NETWORK_PROVIDER} or {@link #GPS_PROVIDER}), * but if you insist then select a minTime of 5 * 60 * 1000 (5 minutes) * or greater. If your application is in the foreground and showing * location to the user then it is appropriate to select a faster * update interval. * *

The minDistance parameter can also be used to control the * frequency of location updates. If it is greater than 0 then the * location provider will only send your application an update when * the location has changed by at least minDistance meters, AND * at least minTime milliseconds have passed. However it is more * difficult for location providers to save power using the minDistance * parameter, so minTime should be the primary tool to conserving battery * life. * *

If your application wants to passively observe location * updates triggered by other applications, but not consume * any additional power otherwise, then use the {@link #PASSIVE_PROVIDER} * This provider does not actively turn on or modify active location * providers, so you do not need to be as careful about minTime and * minDistance. However if your application performs heavy work * on a location update (such as network activity) then you should * select non-zero values for minTime and/or minDistance to rate-limit * your update frequency in the case another application enables a * location provider with extremely fast updates. * *

In case the provider is disabled by the user, updates will stop, * and a provider availability update will be sent. * As soon as the provider is enabled again, * location updates will immediately resume and a provider availability * update sent. Providers can also send status updates, at any time, * with extra's specific to the provider. If a callback was supplied * then status and availability updates are via * {@link LocationListener#onProviderDisabled}, * {@link LocationListener#onProviderEnabled} or * {@link LocationListener#onStatusChanged}. Alternately, if a * pending intent was supplied then status and availability updates * are broadcast intents with extra keys of * {@link #KEY_PROVIDER_ENABLED} or {@link #KEY_STATUS_CHANGED}. * *

If a {@link LocationListener} is used but with no Looper specified * then the calling thread must already * be a {@link android.os.Looper} thread such as the main thread of the * calling Activity. If a Looper is specified with a {@link LocationListener} * then callbacks are made on the supplied Looper thread. * *

Prior to Jellybean, the minTime parameter was * only a hint, and some location provider implementations ignored it. * From Jellybean and onwards it is mandatory for Android compatible * devices to observe both the minTime and minDistance parameters. * * @param minTime minimum time interval between location updates, in milliseconds * @param minDistance minimum distance between location updates, in meters * @param criteria contains parameters for the location manager to choose the * appropriate provider and parameters to compute the location * @param intent a {@link PendingIntent} to be sent for each location update * * @throws IllegalArgumentException if criteria is null * @throws IllegalArgumentException if intent is null * @throws SecurityException if no suitable permission is present */ @RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION}) public void requestLocationUpdates(long minTime, float minDistance, Criteria criteria, PendingIntent intent) { checkCriteria(criteria); checkPendingIntent(intent); LocationRequest request = LocationRequest.createFromDeprecatedCriteria( criteria, minTime, minDistance, false); requestLocationUpdates(request, null, null, intent); } /** * Register for a single location update using the named provider and * a callback. * *

See {@link #requestLocationUpdates(long, float, Criteria, PendingIntent)} * for more detail on how to use this method. * * @param provider the name of the provider with which to register * @param listener a {@link LocationListener} whose * {@link LocationListener#onLocationChanged} method will be called when * the location update is available * @param looper a Looper object whose message queue will be used to * implement the callback mechanism, or null to make callbacks on the calling * thread * * @throws IllegalArgumentException if provider is null or doesn't exist * @throws IllegalArgumentException if listener is null * @throws SecurityException if no suitable permission is present */ @RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION}) public void requestSingleUpdate(String provider, LocationListener listener, Looper looper) { checkProvider(provider); checkListener(listener); LocationRequest request = LocationRequest.createFromDeprecatedProvider( provider, 0, 0, true); requestLocationUpdates(request, listener, looper, null); } /** * Register for a single location update using a Criteria and * a callback. * *

See {@link #requestLocationUpdates(long, float, Criteria, PendingIntent)} * for more detail on how to use this method. * * @param criteria contains parameters for the location manager to choose the * appropriate provider and parameters to compute the location * @param listener a {@link LocationListener} whose * {@link LocationListener#onLocationChanged} method will be called when * the location update is available * @param looper a Looper object whose message queue will be used to * implement the callback mechanism, or null to make callbacks on the calling * thread * * @throws IllegalArgumentException if criteria is null * @throws IllegalArgumentException if listener is null * @throws SecurityException if no suitable permission is present */ @RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION}) public void requestSingleUpdate(Criteria criteria, LocationListener listener, Looper looper) { checkCriteria(criteria); checkListener(listener); LocationRequest request = LocationRequest.createFromDeprecatedCriteria( criteria, 0, 0, true); requestLocationUpdates(request, listener, looper, null); } /** * Register for a single location update using a named provider and pending intent. * *

See {@link #requestLocationUpdates(long, float, Criteria, PendingIntent)} * for more detail on how to use this method. * * @param provider the name of the provider with which to register * @param intent a {@link PendingIntent} to be sent for the location update * * @throws IllegalArgumentException if provider is null or doesn't exist * @throws IllegalArgumentException if intent is null * @throws SecurityException if no suitable permission is present */ @RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION}) public void requestSingleUpdate(String provider, PendingIntent intent) { checkProvider(provider); checkPendingIntent(intent); LocationRequest request = LocationRequest.createFromDeprecatedProvider( provider, 0, 0, true); requestLocationUpdates(request, null, null, intent); } /** * Register for a single location update using a Criteria and pending intent. * *

See {@link #requestLocationUpdates(long, float, Criteria, PendingIntent)} * for more detail on how to use this method. * * @param criteria contains parameters for the location manager to choose the * appropriate provider and parameters to compute the location * @param intent a {@link PendingIntent} to be sent for the location update * * @throws IllegalArgumentException if provider is null or doesn't exist * @throws IllegalArgumentException if intent is null * @throws SecurityException if no suitable permission is present */ @RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION}) public void requestSingleUpdate(Criteria criteria, PendingIntent intent) { checkCriteria(criteria); checkPendingIntent(intent); LocationRequest request = LocationRequest.createFromDeprecatedCriteria( criteria, 0, 0, true); requestLocationUpdates(request, null, null, intent); } /** * Register for fused location updates using a LocationRequest and callback. * *

Upon a location update, the system delivers the new {@link Location} to the * provided {@link LocationListener}, by calling its {@link * LocationListener#onLocationChanged} method.

* *

The system will automatically select and enable the best providers * to compute a location for your application. It may use only passive * locations, or just a single location source, or it may fuse together * multiple location sources in order to produce the best possible * result, depending on the quality of service requested in the * {@link LocationRequest}. * *

LocationRequest can be null, in which case the system will choose * default, low power parameters for location updates. You will occasionally * receive location updates as available, without a major power impact on the * system. If your application just needs an occasional location update * without any strict demands, then pass a null LocationRequest. * *

Only one LocationRequest can be registered for each unique callback * or pending intent. So a subsequent request with the same callback or * pending intent will over-write the previous LocationRequest. * *

If a pending intent is supplied then location updates * are sent with a key of {@link #KEY_LOCATION_CHANGED} and a * {@link android.location.Location} value. If a callback is supplied * then location updates are made using the * {@link LocationListener#onLocationChanged} callback, on the specified * Looper thread. If a {@link LocationListener} is used * but with a null Looper then the calling thread must already * be a {@link android.os.Looper} thread (such as the main thread) and * callbacks will occur on this thread. * *

Provider status updates and availability updates are deprecated * because the system is performing provider fusion on the applications * behalf. So {@link LocationListener#onProviderDisabled}, * {@link LocationListener#onProviderEnabled}, {@link LocationListener#onStatusChanged} * will not be called, and intents with extra keys of * {@link #KEY_PROVIDER_ENABLED} or {@link #KEY_STATUS_CHANGED} will not * be received. * *

To unregister for Location updates, use: {@link #removeUpdates(LocationListener)}. * * @param request quality of service required, null for default low power * @param listener a {@link LocationListener} whose * {@link LocationListener#onLocationChanged} method will be called when * the location update is available * @param looper a Looper object whose message queue will be used to * implement the callback mechanism, or null to make callbacks on the calling * thread * * @throws IllegalArgumentException if listener is null * @throws SecurityException if no suitable permission is present * * @hide */ @SystemApi @RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION}) public void requestLocationUpdates(LocationRequest request, LocationListener listener, Looper looper) { checkListener(listener); requestLocationUpdates(request, listener, looper, null); } /** * Register for fused location updates using a LocationRequest and a pending intent. * *

Upon a location update, the system delivers the new {@link Location} with your provided * {@link PendingIntent}, as the value for {@link LocationManager#KEY_LOCATION_CHANGED} * in the intent's extras.

* *

To unregister for Location updates, use: {@link #removeUpdates(PendingIntent)}. * *

See {@link #requestLocationUpdates(LocationRequest, LocationListener, Looper)} * for more detail. * * @param request quality of service required, null for default low power * @param intent a {@link PendingIntent} to be sent for the location update * * @throws IllegalArgumentException if intent is null * @throws SecurityException if no suitable permission is present * * @hide */ @SystemApi @RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION}) public void requestLocationUpdates(LocationRequest request, PendingIntent intent) { checkPendingIntent(intent); requestLocationUpdates(request, null, null, intent); } private ListenerTransport wrapListener(LocationListener listener, Looper looper) { if (listener == null) return null; synchronized (mListeners) { ListenerTransport transport = mListeners.get(listener); if (transport == null) { transport = new ListenerTransport(listener, looper); } mListeners.put(listener, transport); return transport; } } private void requestLocationUpdates(LocationRequest request, LocationListener listener, Looper looper, PendingIntent intent) { String packageName = mContext.getPackageName(); // wrap the listener class ListenerTransport transport = wrapListener(listener, looper); try { mService.requestLocationUpdates(request, transport, intent, packageName); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Removes all location updates for the specified LocationListener. * *

Following this call, updates will no longer * occur for this listener. * * @param listener listener object that no longer needs location updates * @throws IllegalArgumentException if listener is null */ public void removeUpdates(LocationListener listener) { checkListener(listener); String packageName = mContext.getPackageName(); ListenerTransport transport; synchronized (mListeners) { transport = mListeners.remove(listener); } if (transport == null) return; try { mService.removeUpdates(transport, null, packageName); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Removes all location updates for the specified pending intent. * *

Following this call, updates will no longer for this pending intent. * * @param intent pending intent object that no longer needs location updates * @throws IllegalArgumentException if intent is null */ public void removeUpdates(PendingIntent intent) { checkPendingIntent(intent); String packageName = mContext.getPackageName(); try { mService.removeUpdates(null, intent, packageName); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Set a proximity alert for the location given by the position * (latitude, longitude) and the given radius. * *

When the device * detects that it has entered or exited the area surrounding the * location, the given PendingIntent will be used to create an Intent * to be fired. * *

The fired Intent will have a boolean extra added with key * {@link #KEY_PROXIMITY_ENTERING}. If the value is true, the device is * entering the proximity region; if false, it is exiting. * *

Due to the approximate nature of position estimation, if the * device passes through the given area briefly, it is possible * that no Intent will be fired. Similarly, an Intent could be * fired if the device passes very close to the given area but * does not actually enter it. * *

After the number of milliseconds given by the expiration * parameter, the location manager will delete this proximity * alert and no longer monitor it. A value of -1 indicates that * there should be no expiration time. * *

Internally, this method uses both {@link #NETWORK_PROVIDER} * and {@link #GPS_PROVIDER}. * *

Before API version 17, this method could be used with * {@link android.Manifest.permission#ACCESS_FINE_LOCATION} or * {@link android.Manifest.permission#ACCESS_COARSE_LOCATION}. * From API version 17 and onwards, this method requires * {@link android.Manifest.permission#ACCESS_FINE_LOCATION} permission. * * @param latitude the latitude of the central point of the * alert region * @param longitude the longitude of the central point of the * alert region * @param radius the radius of the central point of the * alert region, in meters * @param expiration time for this proximity alert, in milliseconds, * or -1 to indicate no expiration * @param intent a PendingIntent that will be used to generate an Intent to * fire when entry to or exit from the alert region is detected * * @throws SecurityException if {@link android.Manifest.permission#ACCESS_FINE_LOCATION} * permission is not present */ @RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION}) public void addProximityAlert(double latitude, double longitude, float radius, long expiration, PendingIntent intent) { checkPendingIntent(intent); if (expiration < 0) expiration = Long.MAX_VALUE; Geofence fence = Geofence.createCircle(latitude, longitude, radius); LocationRequest request = new LocationRequest().setExpireIn(expiration); try { mService.requestGeofence(request, fence, intent, mContext.getPackageName()); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Add a geofence with the specified LocationRequest quality of service. * *

When the device * detects that it has entered or exited the area surrounding the * location, the given PendingIntent will be used to create an Intent * to be fired. * *

The fired Intent will have a boolean extra added with key * {@link #KEY_PROXIMITY_ENTERING}. If the value is true, the device is * entering the proximity region; if false, it is exiting. * *

The geofence engine fuses results from all location providers to * provide the best balance between accuracy and power. Applications * can choose the quality of service required using the * {@link LocationRequest} object. If it is null then a default, * low power geo-fencing implementation is used. It is possible to cross * a geo-fence without notification, but the system will do its best * to detect, using {@link LocationRequest} as a hint to trade-off * accuracy and power. * *

The power required by the geofence engine can depend on many factors, * such as quality and interval requested in {@link LocationRequest}, * distance to nearest geofence and current device velocity. * * @param request quality of service required, null for default low power * @param fence a geographical description of the geofence area * @param intent pending intent to receive geofence updates * * @throws IllegalArgumentException if fence is null * @throws IllegalArgumentException if intent is null * @throws SecurityException if {@link android.Manifest.permission#ACCESS_FINE_LOCATION} * permission is not present * * @hide */ @RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION}) public void addGeofence(LocationRequest request, Geofence fence, PendingIntent intent) { checkPendingIntent(intent); checkGeofence(fence); try { mService.requestGeofence(request, fence, intent, mContext.getPackageName()); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Removes the proximity alert with the given PendingIntent. * *

Before API version 17, this method could be used with * {@link android.Manifest.permission#ACCESS_FINE_LOCATION} or * {@link android.Manifest.permission#ACCESS_COARSE_LOCATION}. * From API version 17 and onwards, this method requires * {@link android.Manifest.permission#ACCESS_FINE_LOCATION} permission. * * @param intent the PendingIntent that no longer needs to be notified of * proximity alerts * * @throws IllegalArgumentException if intent is null * @throws SecurityException if {@link android.Manifest.permission#ACCESS_FINE_LOCATION} * permission is not present */ public void removeProximityAlert(PendingIntent intent) { checkPendingIntent(intent); String packageName = mContext.getPackageName(); try { mService.removeGeofence(null, intent, packageName); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Remove a single geofence. * *

This removes only the specified geofence associated with the * specified pending intent. All other geofences remain unchanged. * * @param fence a geofence previously passed to {@link #addGeofence} * @param intent a pending intent previously passed to {@link #addGeofence} * * @throws IllegalArgumentException if fence is null * @throws IllegalArgumentException if intent is null * @throws SecurityException if {@link android.Manifest.permission#ACCESS_FINE_LOCATION} * permission is not present * * @hide */ public void removeGeofence(Geofence fence, PendingIntent intent) { checkPendingIntent(intent); checkGeofence(fence); String packageName = mContext.getPackageName(); try { mService.removeGeofence(fence, intent, packageName); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Remove all geofences registered to the specified pending intent. * * @param intent a pending intent previously passed to {@link #addGeofence} * * @throws IllegalArgumentException if intent is null * @throws SecurityException if {@link android.Manifest.permission#ACCESS_FINE_LOCATION} * permission is not present * * @hide */ public void removeAllGeofences(PendingIntent intent) { checkPendingIntent(intent); String packageName = mContext.getPackageName(); try { mService.removeGeofence(null, intent, packageName); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Returns the current enabled/disabled status of the given provider. * *

If the user has enabled this provider in the Settings menu, true * is returned otherwise false is returned * *

Callers should instead use * {@link android.provider.Settings.Secure#LOCATION_MODE} * unless they depend on provider-specific APIs such as * {@link #requestLocationUpdates(String, long, float, LocationListener)}. * *

* Before API version {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this * method would throw {@link SecurityException} if the location permissions * were not sufficient to use the specified provider. * * @param provider the name of the provider * @return true if the provider exists and is enabled * * @throws IllegalArgumentException if provider is null */ public boolean isProviderEnabled(String provider) { checkProvider(provider); try { return mService.isProviderEnabled(provider); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Get the last known location. * *

This location could be very old so use * {@link Location#getElapsedRealtimeNanos} to calculate its age. It can * also return null if no previous location is available. * *

Always returns immediately. * * @return The last known location, or null if not available * @throws SecurityException if no suitable permission is present * * @hide */ public Location getLastLocation() { String packageName = mContext.getPackageName(); try { return mService.getLastLocation(null, packageName); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Returns a Location indicating the data from the last known * location fix obtained from the given provider. * *

This can be done * without starting the provider. Note that this location could * be out-of-date, for example if the device was turned off and * moved to another location. * *

If the provider is currently disabled, null is returned. * * @param provider the name of the provider * @return the last known location for the provider, or null * * @throws SecurityException if no suitable permission is present * @throws IllegalArgumentException if provider is null or doesn't exist */ @RequiresPermission(anyOf = {ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION}) public Location getLastKnownLocation(String provider) { checkProvider(provider); String packageName = mContext.getPackageName(); LocationRequest request = LocationRequest.createFromDeprecatedProvider( provider, 0, 0, true); try { return mService.getLastLocation(request, packageName); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } // --- Mock provider support --- // TODO: It would be fantastic to deprecate mock providers entirely, and replace // with something closer to LocationProviderBase.java /** * Creates a mock location provider and adds it to the set of active providers. * * @param name the provider name * * @throws SecurityException if {@link android.app.AppOpsManager#OPSTR_MOCK_LOCATION * mock location app op} is not set to {@link android.app.AppOpsManager#MODE_ALLOWED * allowed} for your app. * @throws IllegalArgumentException if a provider with the given name already exists */ public void addTestProvider(String name, boolean requiresNetwork, boolean requiresSatellite, boolean requiresCell, boolean hasMonetaryCost, boolean supportsAltitude, boolean supportsSpeed, boolean supportsBearing, int powerRequirement, int accuracy) { ProviderProperties properties = new ProviderProperties(requiresNetwork, requiresSatellite, requiresCell, hasMonetaryCost, supportsAltitude, supportsSpeed, supportsBearing, powerRequirement, accuracy); if (name.matches(LocationProvider.BAD_CHARS_REGEX)) { throw new IllegalArgumentException("provider name contains illegal character: " + name); } try { mService.addTestProvider(name, properties, mContext.getOpPackageName()); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Removes the mock location provider with the given name. * * @param provider the provider name * * @throws SecurityException if {@link android.app.AppOpsManager#OPSTR_MOCK_LOCATION * mock location app op} is not set to {@link android.app.AppOpsManager#MODE_ALLOWED * allowed} for your app. * @throws IllegalArgumentException if no provider with the given name exists */ public void removeTestProvider(String provider) { try { mService.removeTestProvider(provider, mContext.getOpPackageName()); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Sets a mock location for the given provider. *

This location will be used in place of any actual location from the provider. * The location object must have a minimum number of fields set to be * considered a valid LocationProvider Location, as per documentation * on {@link Location} class. * * @param provider the provider name * @param loc the mock location * * @throws SecurityException if {@link android.app.AppOpsManager#OPSTR_MOCK_LOCATION * mock location app op} is not set to {@link android.app.AppOpsManager#MODE_ALLOWED * allowed} for your app. * @throws IllegalArgumentException if no provider with the given name exists * @throws IllegalArgumentException if the location is incomplete */ public void setTestProviderLocation(String provider, Location loc) { if (!loc.isComplete()) { IllegalArgumentException e = new IllegalArgumentException( "Incomplete location object, missing timestamp or accuracy? " + loc); if (mContext.getApplicationInfo().targetSdkVersion <= Build.VERSION_CODES.JELLY_BEAN) { // just log on old platform (for backwards compatibility) Log.w(TAG, e); loc.makeComplete(); } else { // really throw it! throw e; } } try { mService.setTestProviderLocation(provider, loc, mContext.getOpPackageName()); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Removes any mock location associated with the given provider. * * @param provider the provider name * * @throws SecurityException if {@link android.app.AppOpsManager#OPSTR_MOCK_LOCATION * mock location app op} is not set to {@link android.app.AppOpsManager#MODE_ALLOWED * allowed} for your app. * @throws IllegalArgumentException if no provider with the given name exists */ public void clearTestProviderLocation(String provider) { try { mService.clearTestProviderLocation(provider, mContext.getOpPackageName()); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Sets a mock enabled value for the given provider. This value will be used in place * of any actual value from the provider. * * @param provider the provider name * @param enabled the mock enabled value * * @throws SecurityException if {@link android.app.AppOpsManager#OPSTR_MOCK_LOCATION * mock location app op} is not set to {@link android.app.AppOpsManager#MODE_ALLOWED * allowed} for your app. * @throws IllegalArgumentException if no provider with the given name exists */ public void setTestProviderEnabled(String provider, boolean enabled) { try { mService.setTestProviderEnabled(provider, enabled, mContext.getOpPackageName()); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Removes any mock enabled value associated with the given provider. * * @param provider the provider name * * @throws SecurityException if {@link android.app.AppOpsManager#OPSTR_MOCK_LOCATION * mock location app op} is not set to {@link android.app.AppOpsManager#MODE_ALLOWED * allowed} for your app. * @throws IllegalArgumentException if no provider with the given name exists */ public void clearTestProviderEnabled(String provider) { try { mService.clearTestProviderEnabled(provider, mContext.getOpPackageName()); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Sets mock status values for the given provider. These values will be used in place * of any actual values from the provider. * * @param provider the provider name * @param status the mock status * @param extras a Bundle containing mock extras * @param updateTime the mock update time * * @throws SecurityException if {@link android.app.AppOpsManager#OPSTR_MOCK_LOCATION * mock location app op} is not set to {@link android.app.AppOpsManager#MODE_ALLOWED * allowed} for your app. * @throws IllegalArgumentException if no provider with the given name exists */ public void setTestProviderStatus(String provider, int status, Bundle extras, long updateTime) { try { mService.setTestProviderStatus(provider, status, extras, updateTime, mContext.getOpPackageName()); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Removes any mock status values associated with the given provider. * * @param provider the provider name * * @throws SecurityException if {@link android.app.AppOpsManager#OPSTR_MOCK_LOCATION * mock location app op} is not set to {@link android.app.AppOpsManager#MODE_ALLOWED * allowed} for your app. * @throws IllegalArgumentException if no provider with the given name exists */ public void clearTestProviderStatus(String provider) { try { mService.clearTestProviderStatus(provider, mContext.getOpPackageName()); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } // --- GPS-specific support --- // This class is used to send Gnss status events to the client's specific thread. private class GnssStatusListenerTransport extends IGnssStatusListener.Stub { private final GpsStatus.Listener mGpsListener; private final GpsStatus.NmeaListener mGpsNmeaListener; private final GnssStatus.Callback mGnssCallback; private final OnNmeaMessageListener mGnssNmeaListener; private class GnssHandler extends Handler { public GnssHandler(Handler handler) { super(handler != null ? handler.getLooper() : Looper.myLooper()); } @Override public void handleMessage(Message msg) { switch (msg.what) { case NMEA_RECEIVED: synchronized (mNmeaBuffer) { int length = mNmeaBuffer.size(); for (int i = 0; i < length; i++) { Nmea nmea = mNmeaBuffer.get(i); mGnssNmeaListener.onNmeaMessage(nmea.mNmea, nmea.mTimestamp); } mNmeaBuffer.clear(); } break; case GpsStatus.GPS_EVENT_STARTED: mGnssCallback.onStarted(); break; case GpsStatus.GPS_EVENT_STOPPED: mGnssCallback.onStopped(); break; case GpsStatus.GPS_EVENT_FIRST_FIX: mGnssCallback.onFirstFix(mTimeToFirstFix); break; case GpsStatus.GPS_EVENT_SATELLITE_STATUS: mGnssCallback.onSatelliteStatusChanged(mGnssStatus); break; default: break; } } } private final Handler mGnssHandler; // This must not equal any of the GpsStatus event IDs private static final int NMEA_RECEIVED = 1000; private class Nmea { long mTimestamp; String mNmea; Nmea(long timestamp, String nmea) { mTimestamp = timestamp; mNmea = nmea; } } private final ArrayList mNmeaBuffer; GnssStatusListenerTransport(GpsStatus.Listener listener) { this(listener, null); } GnssStatusListenerTransport(GpsStatus.Listener listener, Handler handler) { mGpsListener = listener; mGnssHandler = new GnssHandler(handler); mGpsNmeaListener = null; mNmeaBuffer = null; mGnssCallback = mGpsListener != null ? new GnssStatus.Callback() { @Override public void onStarted() { mGpsListener.onGpsStatusChanged(GpsStatus.GPS_EVENT_STARTED); } @Override public void onStopped() { mGpsListener.onGpsStatusChanged(GpsStatus.GPS_EVENT_STOPPED); } @Override public void onFirstFix(int ttff) { mGpsListener.onGpsStatusChanged(GpsStatus.GPS_EVENT_FIRST_FIX); } @Override public void onSatelliteStatusChanged(GnssStatus status) { mGpsListener.onGpsStatusChanged(GpsStatus.GPS_EVENT_SATELLITE_STATUS); } } : null; mGnssNmeaListener = null; } GnssStatusListenerTransport(GpsStatus.NmeaListener listener) { this(listener, null); } GnssStatusListenerTransport(GpsStatus.NmeaListener listener, Handler handler) { mGpsListener = null; mGnssHandler = new GnssHandler(handler); mGpsNmeaListener = listener; mNmeaBuffer = new ArrayList(); mGnssCallback = null; mGnssNmeaListener = mGpsNmeaListener != null ? new OnNmeaMessageListener() { @Override public void onNmeaMessage(String nmea, long timestamp) { mGpsNmeaListener.onNmeaReceived(timestamp, nmea); } } : null; } GnssStatusListenerTransport(GnssStatus.Callback callback) { this(callback, null); } GnssStatusListenerTransport(GnssStatus.Callback callback, Handler handler) { mGnssCallback = callback; mGnssHandler = new GnssHandler(handler); mGnssNmeaListener = null; mNmeaBuffer = null; mGpsListener = null; mGpsNmeaListener = null; } GnssStatusListenerTransport(OnNmeaMessageListener listener) { this(listener, null); } GnssStatusListenerTransport(OnNmeaMessageListener listener, Handler handler) { mGnssCallback = null; mGnssHandler = new GnssHandler(handler); mGnssNmeaListener = listener; mGpsListener = null; mGpsNmeaListener = null; mNmeaBuffer = new ArrayList(); } @Override public void onGnssStarted() { if (mGnssCallback != null) { Message msg = Message.obtain(); msg.what = GpsStatus.GPS_EVENT_STARTED; mGnssHandler.sendMessage(msg); } } @Override public void onGnssStopped() { if (mGnssCallback != null) { Message msg = Message.obtain(); msg.what = GpsStatus.GPS_EVENT_STOPPED; mGnssHandler.sendMessage(msg); } } @Override public void onFirstFix(int ttff) { if (mGnssCallback != null) { mTimeToFirstFix = ttff; Message msg = Message.obtain(); msg.what = GpsStatus.GPS_EVENT_FIRST_FIX; mGnssHandler.sendMessage(msg); } } @Override public void onSvStatusChanged(int svCount, int[] prnWithFlags, float[] cn0s, float[] elevations, float[] azimuths, float[] carrierFreqs) { if (mGnssCallback != null) { mGnssStatus = new GnssStatus(svCount, prnWithFlags, cn0s, elevations, azimuths, carrierFreqs); Message msg = Message.obtain(); msg.what = GpsStatus.GPS_EVENT_SATELLITE_STATUS; // remove any SV status messages already in the queue mGnssHandler.removeMessages(GpsStatus.GPS_EVENT_SATELLITE_STATUS); mGnssHandler.sendMessage(msg); } } @Override public void onNmeaReceived(long timestamp, String nmea) { if (mGnssNmeaListener != null) { synchronized (mNmeaBuffer) { mNmeaBuffer.add(new Nmea(timestamp, nmea)); } Message msg = Message.obtain(); msg.what = NMEA_RECEIVED; // remove any NMEA_RECEIVED messages already in the queue mGnssHandler.removeMessages(NMEA_RECEIVED); mGnssHandler.sendMessage(msg); } } } /** * Adds a GPS status listener. * * @param listener GPS status listener object to register * * @return true if the listener was successfully added * * @throws SecurityException if the ACCESS_FINE_LOCATION permission is not present * @deprecated use {@link #registerGnssStatusCallback(GnssStatus.Callback)} instead. */ @Deprecated @RequiresPermission(ACCESS_FINE_LOCATION) public boolean addGpsStatusListener(GpsStatus.Listener listener) { boolean result; if (mGpsStatusListeners.get(listener) != null) { // listener is already registered return true; } try { GnssStatusListenerTransport transport = new GnssStatusListenerTransport(listener); result = mService.registerGnssStatusCallback(transport, mContext.getPackageName()); if (result) { mGpsStatusListeners.put(listener, transport); } } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } return result; } /** * Removes a GPS status listener. * * @param listener GPS status listener object to remove * @deprecated use {@link #unregisterGnssStatusCallback(GnssStatus.Callback)} instead. */ @Deprecated public void removeGpsStatusListener(GpsStatus.Listener listener) { try { GnssStatusListenerTransport transport = mGpsStatusListeners.remove(listener); if (transport != null) { mService.unregisterGnssStatusCallback(transport); } } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Registers a GNSS status callback. * * @param callback GNSS status callback object to register * * @return true if the listener was successfully added * * @throws SecurityException if the ACCESS_FINE_LOCATION permission is not present */ @RequiresPermission(ACCESS_FINE_LOCATION) public boolean registerGnssStatusCallback(GnssStatus.Callback callback) { return registerGnssStatusCallback(callback, null); } /** * Registers a GNSS status callback. * * @param callback GNSS status callback object to register * @param handler the handler that the callback runs on. * * @return true if the listener was successfully added * * @throws SecurityException if the ACCESS_FINE_LOCATION permission is not present */ @RequiresPermission(ACCESS_FINE_LOCATION) public boolean registerGnssStatusCallback(GnssStatus.Callback callback, Handler handler) { boolean result; if (mGnssStatusListeners.get(callback) != null) { // listener is already registered return true; } try { GnssStatusListenerTransport transport = new GnssStatusListenerTransport(callback, handler); result = mService.registerGnssStatusCallback(transport, mContext.getPackageName()); if (result) { mGnssStatusListeners.put(callback, transport); } } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } return result; } /** * Removes a GNSS status callback. * * @param callback GNSS status callback object to remove */ public void unregisterGnssStatusCallback(GnssStatus.Callback callback) { try { GnssStatusListenerTransport transport = mGnssStatusListeners.remove(callback); if (transport != null) { mService.unregisterGnssStatusCallback(transport); } } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Adds an NMEA listener. * * @param listener a {@link GpsStatus.NmeaListener} object to register * * @return true if the listener was successfully added * * @throws SecurityException if the ACCESS_FINE_LOCATION permission is not present * @deprecated use {@link #addNmeaListener(OnNmeaMessageListener)} instead. */ @Deprecated @RequiresPermission(ACCESS_FINE_LOCATION) public boolean addNmeaListener(GpsStatus.NmeaListener listener) { boolean result; if (mGpsNmeaListeners.get(listener) != null) { // listener is already registered return true; } try { GnssStatusListenerTransport transport = new GnssStatusListenerTransport(listener); result = mService.registerGnssStatusCallback(transport, mContext.getPackageName()); if (result) { mGpsNmeaListeners.put(listener, transport); } } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } return result; } /** * Removes an NMEA listener. * * @param listener a {@link GpsStatus.NmeaListener} object to remove * @deprecated use {@link #removeNmeaListener(OnNmeaMessageListener)} instead. */ @Deprecated public void removeNmeaListener(GpsStatus.NmeaListener listener) { try { GnssStatusListenerTransport transport = mGpsNmeaListeners.remove(listener); if (transport != null) { mService.unregisterGnssStatusCallback(transport); } } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Adds an NMEA listener. * * @param listener a {@link OnNmeaMessageListener} object to register * * @return true if the listener was successfully added * * @throws SecurityException if the ACCESS_FINE_LOCATION permission is not present */ @RequiresPermission(ACCESS_FINE_LOCATION) public boolean addNmeaListener(OnNmeaMessageListener listener) { return addNmeaListener(listener, null); } /** * Adds an NMEA listener. * * @param listener a {@link OnNmeaMessageListener} object to register * @param handler the handler that the listener runs on. * * @return true if the listener was successfully added * * @throws SecurityException if the ACCESS_FINE_LOCATION permission is not present */ @RequiresPermission(ACCESS_FINE_LOCATION) public boolean addNmeaListener(OnNmeaMessageListener listener, Handler handler) { boolean result; if (mGpsNmeaListeners.get(listener) != null) { // listener is already registered return true; } try { GnssStatusListenerTransport transport = new GnssStatusListenerTransport(listener, handler); result = mService.registerGnssStatusCallback(transport, mContext.getPackageName()); if (result) { mGnssNmeaListeners.put(listener, transport); } } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } return result; } /** * Removes an NMEA listener. * * @param listener a {@link OnNmeaMessageListener} object to remove */ public void removeNmeaListener(OnNmeaMessageListener listener) { try { GnssStatusListenerTransport transport = mGnssNmeaListeners.remove(listener); if (transport != null) { mService.unregisterGnssStatusCallback(transport); } } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * No-op method to keep backward-compatibility. * Don't use it. Use {@link #registerGnssMeasurementsCallback} instead. * @hide * @deprecated Not supported anymore. */ @Deprecated @SystemApi @SuppressLint("Doclava125") public boolean addGpsMeasurementListener(GpsMeasurementsEvent.Listener listener) { return false; } /** * Registers a GPS Measurement callback. * * @param callback a {@link GnssMeasurementsEvent.Callback} object to register. * @return {@code true} if the callback was added successfully, {@code false} otherwise. */ @RequiresPermission(ACCESS_FINE_LOCATION) public boolean registerGnssMeasurementsCallback(GnssMeasurementsEvent.Callback callback) { return registerGnssMeasurementsCallback(callback, null); } /** * Registers a GPS Measurement callback. * * @param callback a {@link GnssMeasurementsEvent.Callback} object to register. * @param handler the handler that the callback runs on. * @return {@code true} if the callback was added successfully, {@code false} otherwise. */ @RequiresPermission(ACCESS_FINE_LOCATION) public boolean registerGnssMeasurementsCallback(GnssMeasurementsEvent.Callback callback, Handler handler) { return mGnssMeasurementCallbackTransport.add(callback, handler); } /** * No-op method to keep backward-compatibility. * Don't use it. Use {@link #unregisterGnssMeasurementsCallback} instead. * @hide * @deprecated use {@link #unregisterGnssMeasurementsCallback(GnssMeasurementsEvent.Callback)} * instead. */ @Deprecated @SystemApi @SuppressLint("Doclava125") public void removeGpsMeasurementListener(GpsMeasurementsEvent.Listener listener) { } /** * Unregisters a GPS Measurement callback. * * @param callback a {@link GnssMeasurementsEvent.Callback} object to remove. */ public void unregisterGnssMeasurementsCallback(GnssMeasurementsEvent.Callback callback) { mGnssMeasurementCallbackTransport.remove(callback); } /** * No-op method to keep backward-compatibility. * Don't use it. Use {@link #registerGnssNavigationMessageCallback} instead. * @hide * @deprecated Not supported anymore. */ @Deprecated @SystemApi @SuppressLint("Doclava125") public boolean addGpsNavigationMessageListener(GpsNavigationMessageEvent.Listener listener) { return false; } /** * No-op method to keep backward-compatibility. * Don't use it. Use {@link #unregisterGnssNavigationMessageCallback} instead. * @hide * @deprecated use * {@link #unregisterGnssNavigationMessageCallback(GnssNavigationMessage.Callback)} * instead */ @Deprecated @SystemApi @SuppressLint("Doclava125") public void removeGpsNavigationMessageListener(GpsNavigationMessageEvent.Listener listener) { } /** * Registers a GNSS Navigation Message callback. * * @param callback a {@link GnssNavigationMessage.Callback} object to register. * @return {@code true} if the callback was added successfully, {@code false} otherwise. */ public boolean registerGnssNavigationMessageCallback( GnssNavigationMessage.Callback callback) { return registerGnssNavigationMessageCallback(callback, null); } /** * Registers a GNSS Navigation Message callback. * * @param callback a {@link GnssNavigationMessage.Callback} object to register. * @param handler the handler that the callback runs on. * @return {@code true} if the callback was added successfully, {@code false} otherwise. */ @RequiresPermission(ACCESS_FINE_LOCATION) public boolean registerGnssNavigationMessageCallback( GnssNavigationMessage.Callback callback, Handler handler) { return mGnssNavigationMessageCallbackTransport.add(callback, handler); } /** * Unregisters a GNSS Navigation Message callback. * * @param callback a {@link GnssNavigationMessage.Callback} object to remove. */ public void unregisterGnssNavigationMessageCallback( GnssNavigationMessage.Callback callback) { mGnssNavigationMessageCallbackTransport.remove(callback); } /** * Retrieves information about the current status of the GPS engine. * This should only be called from the {@link GpsStatus.Listener#onGpsStatusChanged} * callback to ensure that the data is copied atomically. * * The caller may either pass in a {@link GpsStatus} object to set with the latest * status information, or pass null to create a new {@link GpsStatus} object. * * @param status object containing GPS status details, or null. * @return status object containing updated GPS status. */ @Deprecated @RequiresPermission(ACCESS_FINE_LOCATION) public GpsStatus getGpsStatus(GpsStatus status) { if (status == null) { status = new GpsStatus(); } // When mGnssStatus is null, that means that this method is called outside // onGpsStatusChanged(). Return an empty status to maintain backwards compatibility. if (mGnssStatus != null) { status.setStatus(mGnssStatus, mTimeToFirstFix); } return status; } /** * Returns the system information of the GPS hardware. * May return 0 if GPS hardware is earlier than 2016. * @hide */ @TestApi public int getGnssYearOfHardware() { try { return mService.getGnssYearOfHardware(); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Returns the batch size (in number of Location objects) that are supported by the batching * interface. * * @return Maximum number of location objects that can be returned * @hide */ @SystemApi @RequiresPermission(Manifest.permission.LOCATION_HARDWARE) public int getGnssBatchSize() { try { return mService.getGnssBatchSize(mContext.getPackageName()); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Start hardware-batching of GNSS locations. This API is primarily used when the AP is * asleep and the device can batch GNSS locations in the hardware. * * Note this is designed (as was the fused location interface before it) for a single user * SystemApi - requests are not consolidated. Care should be taken when the System switches * users that may have different batching requests, to stop hardware batching for one user, and * restart it for the next. * * @param periodNanos Time interval, in nanoseconds, that the GNSS locations are requested * within the batch * @param wakeOnFifoFull True if the hardware batching should flush the locations in a * a callback to the listener, when it's internal buffer is full. If * set to false, the oldest location information is, instead, * dropped when the buffer is full. * @param callback The listener on which to return the batched locations * @param handler The handler on which to process the callback * * @return True if batching was successfully started * @hide */ @SystemApi @RequiresPermission(Manifest.permission.LOCATION_HARDWARE) public boolean registerGnssBatchedLocationCallback(long periodNanos, boolean wakeOnFifoFull, BatchedLocationCallback callback, Handler handler) { mBatchedLocationCallbackTransport.add(callback, handler); try { return mService.startGnssBatch(periodNanos, wakeOnFifoFull, mContext.getPackageName()); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Flush the batched GNSS locations. * All GNSS locations currently ready in the batch are returned via the callback sent in * startGnssBatch(), and the buffer containing the batched locations is cleared. * * @hide */ @SystemApi @RequiresPermission(Manifest.permission.LOCATION_HARDWARE) public void flushGnssBatch() { try { mService.flushGnssBatch(mContext.getPackageName()); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Stop batching locations. This API is primarily used when the AP is * asleep and the device can batch locations in the hardware. * * @param callback the specific callback class to remove from the transport layer * * @return True if batching was successfully started * @hide */ @SystemApi @RequiresPermission(Manifest.permission.LOCATION_HARDWARE) public boolean unregisterGnssBatchedLocationCallback(BatchedLocationCallback callback) { mBatchedLocationCallbackTransport.remove(callback); try { return mService.stopGnssBatch(); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Sends additional commands to a location provider. * Can be used to support provider specific extensions to the Location Manager API * * @param provider name of the location provider. * @param command name of the command to send to the provider. * @param extras optional arguments for the command (or null). * The provider may optionally fill the extras Bundle with results from the command. * * @return true if the command succeeds. */ public boolean sendExtraCommand(String provider, String command, Bundle extras) { try { return mService.sendExtraCommand(provider, command, extras); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } /** * Used by NetInitiatedActivity to report user response * for network initiated GPS fix requests. * * @hide */ public boolean sendNiResponse(int notifId, int userResponse) { try { return mService.sendNiResponse(notifId, userResponse); } catch (RemoteException e) { throw e.rethrowFromSystemServer(); } } private static void checkProvider(String provider) { if (provider == null) { throw new IllegalArgumentException("invalid provider: " + provider); } } private static void checkCriteria(Criteria criteria) { if (criteria == null) { throw new IllegalArgumentException("invalid criteria: " + criteria); } } private static void checkListener(LocationListener listener) { if (listener == null) { throw new IllegalArgumentException("invalid listener: " + listener); } } private void checkPendingIntent(PendingIntent intent) { if (intent == null) { throw new IllegalArgumentException("invalid pending intent: " + intent); } if (!intent.isTargetedToPackage()) { IllegalArgumentException e = new IllegalArgumentException( "pending intent must be targeted to package"); if (mContext.getApplicationInfo().targetSdkVersion > Build.VERSION_CODES.JELLY_BEAN) { throw e; } else { Log.w(TAG, e); } } } private static void checkGeofence(Geofence fence) { if (fence == null) { throw new IllegalArgumentException("invalid geofence: " + fence); } } }