Фоновое обновление местоположения в Android периодически
Я использую API-интерфейс Google Chrome для определения местоположения каждые 5 минут. Это обновление как в фоновом режиме, а также, когда приложение убито. Но оно перестает обновляться через 2-3 дня. Я проверил в большинстве устройств Android.
Я звоню в эту Службу из Активности и убиваю приложение, оно отправляет обновления местоположения каждые 5 минут в течение почти 3 дней, после чего оно останавливается. Я пытался так много раз.
Открытый класс GPSTracker расширяет Сервис реализует GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, com.google.android.gms.location.LocationListener {защищенная статическая конечная строка String TAG = "Location..."; закрытый контекст mContext = this;
/**
* Tracks the status of the location updates request.
*/
public static Boolean mRequestingLocationUpdates;
/**
* Time when the location was updated represented as a String.
*/
protected String mLastUpdateTime;
/**
* Provides the entry point to Google Play services.
*/
protected GoogleApiClient mGoogleApiClient;
/**
* Stores parameters for requests to the FusedLocationProviderApi.
*/
protected LocationRequest mLocationRequest;
/**
* Represents a geographical location.
*/
protected Location mCurrentLocation;
public static boolean isEnded = false;
@Override
public void onCreate() {
super.onCreate();
buildGoogleApiClient();
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.d("LOC", "Service init...");
isEnded = false;
mRequestingLocationUpdates = false;
mLastUpdateTime = "";
// buildGoogleApiClient();
if (mGoogleApiClient.isConnected() && mRequestingLocationUpdates) {
startLocationUpdates();
}
return START_STICKY;
}
@Override
public void onConnected(Bundle bundle) {
startLocationUpdates();
}
@Override
public void onConnectionSuspended(int i) {
// The connection to Google Play services was lost for some reason. We call connect() to
// attempt to re-establish the connection.
Log.i(TAG, "Connection suspended==");
mGoogleApiClient.connect();
}
@Override
public void onLocationChanged(Location location) {
mCurrentLocation = location;
mLastUpdateTime = DateFormat.getTimeInstance().format(new Date());
double latitude = location.getLatitude();
double longitude = location.getLongitude();
StringBuilder stringBuilder = new StringBuilder();
StringBuilder latlong = stringBuilder.append(latitude + "," + longitude);
Calendar cal = Calendar.getInstance();
String zone = TimeZone.getDefault().getDisplayName(false, android.icu.util.TimeZone.SHORT);
SimpleDateFormat formatter = new SimpleDateFormat("dd-MMM 'at' h:mm a");
Date date = new Date();
String localtime = (formatter.format(date)).toString();
Date myDate = new Date();
Calendar calendar = Calendar.getInstance();
calendar.setTimeZone(TimeZone.getTimeZone("UTC"));
calendar.setTime(myDate);
date = calendar.getTime();
SimpleDateFormat dateFormatter = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss zz");
dateFormatter.setTimeZone(TimeZone.getTimeZone("UTC"));
String utc = dateFormatter.format(date);
// DateFormat df = DateFormat.getTimeInstance();
// df.setTimeZone(TimeZone.getTimeZone("gmt"));
// String gmtTime = df.format(new Date());
String model = Build.MODEL;
String reqString = Build.VERSION.RELEASE
+ " " + Build.VERSION_CODES.class.getFields()[android.os.Build.VERSION.SDK_INT].getName();
// Date currentTime = Calendar.getInstance().getTime();
// String localtime = currentTime.toString();
PreferencesClass preferencesClass = new PreferencesClass(mContext);
String id = preferencesClass.getFingerPrint();
Data data = null;
try {
JSONObject jsonObject = new JSONObject();
jsonObject.put("userId", id);
jsonObject.put("latLon", latlong);
jsonObject.put("timeZone", zone);
jsonObject.put("localTime", localtime);
jsonObject.put("osVersion",reqString);
jsonObject.put("phoneModel",model);
jsonObject.put("utcTime",utc);
data = new Data();
data.setData(jsonObject.toString());
if (data != null) {
if (Utility.isConnectingToInternet(mContext)) {
// boolean isChecked = preferencesClass.getIsChecked();
// if (isChecked){
LocationWebServiceMgr locationWebServiceMgr = new LocationWebServiceMgr();
locationWebServiceMgr.Location(data, new CallBackInterface() {
@Override
public void onResponse(ArrayList<Object> objects, ResponseMetaData responseMetaData) {
Log.d(TAG, "onResponse: Succesfully added the location to server");
// Toast.makeText(getApplicationContext(), "added to server", Toast.LENGTH_LONG).show();
}
@Override
public void onFailure(ResponseMetaData t) {
}
});
// } else {
// Log.d("serverCall", "Location Permission not available ");
// }
} else {
Log.e("serverCall", "Network not available");
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
// Refer to the javadoc for ConnectionResult to see what error codes might be returned in
// onConnectionFailed.
Log.i(TAG, "Connection failed: ConnectionResult.getErrorCode() = " + connectionResult.getErrorCode());
}
/**
* Builds a GoogleApiClient. Uses the {@code #addApi} method to request the
* LocationServices API.
*/
protected synchronized void buildGoogleApiClient() {
Log.i(TAG, "Building GoogleApiClient===");
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
createLocationRequest();
}
/**
* Sets up the location request. Android has two location request settings:
* {@code ACCESS_COARSE_LOCATION} and {@code ACCESS_FINE_LOCATION}. These settings control
* the accuracy of the current location. This sample uses ACCESS_FINE_LOCATION, as defined in
* the AndroidManifest.xml.
* <p/>
* When the ACCESS_FINE_LOCATION setting is specified, combined with a fast update
* interval (5 seconds), the Fused Location Provider API returns location updates that are
* accurate to within a few feet.
* <p/>
* These settings are appropriate for mapping applications that show real-time location
* updates.
*/
protected void createLocationRequest() {
mGoogleApiClient.connect();
mLocationRequest = new LocationRequest();
// Sets the desired interval for active location updates. This interval is
// inexact. You may not receive updates at all if no location sources are available, or
// you may receive them slower than requested. You may also receive updates faster than
// requested if other applications are requesting location at a faster interval.
mLocationRequest.setInterval(Constants.UPDATE_INTERVAL_IN_MILLISECONDS);
// Sets the fastest rate for active location updates. This interval is exact, and your
// application will never receive updates faster than this value.
mLocationRequest.setFastestInterval(Constants.FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS);
// mLocationRequest.setSmallestDisplacement(Constants.DISPLACEMENT);
//mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
}
/**
* Requests location updates from the FusedLocationApi.
*/
protected void startLocationUpdates() {
if (!mRequestingLocationUpdates) {
mRequestingLocationUpdates = true;
// The final argument to {@code requestLocationUpdates()} is a LocationListener
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
LocationServices.FusedLocationApi.requestLocationUpdates(
mGoogleApiClient, mLocationRequest, this);
Log.i(TAG, " startLocationUpdates===");
isEnded = true;
}
}
}
3 ответа
Используйте workmanager, чтобы перенести службу определения местоположения. Проверьте, не запущена ли служба определения местоположения, а затем запустите из планировщика. Чтобы узнать больше о Workmanager, нажмите здесь
Вы можете создать сервис для этого
public class TimeService extends Service {
// constant
public static final long NOTIFY_INTERVAL = 10 * 1000; // 10 seconds
// run on another Thread to avoid crash
private Handler mHandler = new Handler();
// timer handling
private Timer mTimer = null;
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
// cancel if already existed
if(mTimer != null) {
mTimer.cancel();
} else {
// recreate new
mTimer = new Timer();
}
// schedule task
mTimer.scheduleAtFixedRate(new TimeDisplayTimerTask(), 0, NOTIFY_INTERVAL);
}
class TimeDisplayTimerTask extends TimerTask {
@Override
public void run() {
// run on another thread
mHandler.post(new Runnable() {
@Override
public void run() {
// display toast
startService(new Intent(this, MyService.class));
}
});
}
private String getDateTime() {
// get date time in custom format
SimpleDateFormat sdf = new SimpleDateFormat("[yyyy/MM/dd - HH:mm:ss]");
return sdf.format(new Date());
}
}
и сервис для размещения
public class MyService extends Service
{
private static final String TAG = "BOOMBOOMTESTGPS";
private LocationManager mLocationManager = null;
private static final int LOCATION_INTERVAL = 1000;
private static final float LOCATION_DISTANCE = 10f;
private class LocationListener implements android.location.LocationListener
{
Location mLastLocation;
public LocationListener(String provider)
{
Log.e(TAG, "LocationListener " + provider);
mLastLocation = new Location(provider);
}
@Override
public void onLocationChanged(Location location)
{
Log.e(TAG, "onLocationChanged: " + location);
mLastLocation.set(location);
}
@Override
public void onProviderDisabled(String provider)
{
Log.e(TAG, "onProviderDisabled: " + provider);
}
@Override
public void onProviderEnabled(String provider)
{
Log.e(TAG, "onProviderEnabled: " + provider);
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras)
{
Log.e(TAG, "onStatusChanged: " + provider);
}
}
LocationListener[] mLocationListeners = new LocationListener[] {
new LocationListener(LocationManager.GPS_PROVIDER),
new LocationListener(LocationManager.NETWORK_PROVIDER)
};
@Override
public IBinder onBind(Intent arg0)
{
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId)
{
Log.e(TAG, "onStartCommand");
super.onStartCommand(intent, flags, startId);
return START_STICKY;
}
@Override
public void onCreate()
{
Log.e(TAG, "onCreate");
initializeLocationManager();
try {
mLocationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER, LOCATION_INTERVAL, LOCATION_DISTANCE,
mLocationListeners[1]);
} catch (java.lang.SecurityException ex) {
Log.i(TAG, "fail to request location update, ignore", ex);
} catch (IllegalArgumentException ex) {
Log.d(TAG, "network provider does not exist, " + ex.getMessage());
}
try {
mLocationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER, LOCATION_INTERVAL, LOCATION_DISTANCE,
mLocationListeners[0]);
} catch (java.lang.SecurityException ex) {
Log.i(TAG, "fail to request location update, ignore", ex);
} catch (IllegalArgumentException ex) {
Log.d(TAG, "gps provider does not exist " + ex.getMessage());
}
}
@Override
public void onDestroy()
{
Log.e(TAG, "onDestroy");
super.onDestroy();
if (mLocationManager != null) {
for (int i = 0; i < mLocationListeners.length; i++) {
try {
mLocationManager.removeUpdates(mLocationListeners[i]);
} catch (Exception ex) {
Log.i(TAG, "fail to remove location listners, ignore", ex);
}
}
}
}
private void initializeLocationManager() {
Log.e(TAG, "initializeLocationManager");
if (mLocationManager == null) {
mLocationManager = (LocationManager) getApplicationContext().getSystemService(Context.LOCATION_SERVICE);
}
}
}
Создать класс для локации get.
private class LocationListener implements android.location.LocationListener
{
Location mLastLocation;
public LocationListener(String provider)
{
Log.e(TAG, "LocationListener " + provider);
mLastLocation = new Location(provider);
}
@Override
public void onLocationChanged(Location location)
{
Log.e(TAG, "onLocationChanged: " + location);
mLastLocation.set(location);
}
@Override
public void onProviderDisabled(String provider)
{
Log.e(TAG, "onProviderDisabled: " + provider);
}
@Override
public void onProviderEnabled(String provider)
{
Log.e(TAG, "onProviderEnabled: " + provider);
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras)
{
Log.e(TAG, "onStatusChanged: " + provider);
}
}
в методе изменения onLocation(Location location) вы получите текущий let,long
Для этого вы можете использовать AlarmManager или firebase jobdispatcher или планировщик заданий для запуска любого события через определенные промежутки времени. Я предлагаю вам использовать AlarmManager, который является самым простым.
Используйте этот код для установки будильника:
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
int notificationID = 2018;
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, notificationID, intent, PendingIntent.FLAG_UPDATE_CURRENT);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),5*1000, pendingIntent);
И вы можете отменить сигнал тревоги следующим образом:
AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, notificationID, intent, PendingIntent.FLAG_CANCEL_CURRENT);
alarmManager.cancel(pendingIntent);
pendingIntent.cancel();
Примечание. Начиная с API 19 (KITKAT), выдача аварийных сигналов является неточной: ОС будет сдвигать аварийные сигналы, чтобы минимизировать пробуждения и использование батареи. Существуют новые API для поддержки приложений, которые требуют строгих гарантий доставки; см. setWindow(int, long, long, PendingIntent) и setExact(int, long, PendingIntent). Приложения, для которых targetSdkVersion более ранний, чем API 19, будут по-прежнему видеть предыдущее поведение, при котором все тревоги доставляются точно по запросу.