我有一个应用程序，每隔 5 分钟就会在后台使用定位服务。我们在前台服务中使用 Fusedlocationproviderclient。当应用程序处于打开状态时它工作正常。
在android 8.0及以上版本，当我将应用程序置于后台或从后台滑动杀死时，前台服务会被操作系统自动杀死。
我们在 samsung note 8、one plus 5t 和 red mi 设备中遇到问题。
请告诉我如何实现兼容所有设备的服务。
这是我的位置服务类。
public class TrackingForgroundService extends Service {
private final long UPDATE_INTERVAL = (long) 2000;
private static final long FASTEST_INTERVAL = 2000;
public BookingTrackingForgroundService() {
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (intent != null) {
String action = intent.getAction();
switch (action) {
case ACTION_START_FOREGROUND_SERVICE:
startForegroundService();
break;
case ACTION_STOP_FOREGROUND_SERVICE:
stopForegroundService();
break;
}
}
return START_STICKY;
}
private class TimerTaskToGetLocation extends TimerTask {
@Override
public void run() {
mHandler.post(new Runnable() {
@Override
public void run() {
// Call webservice evry 5 minute
}
});
}
}
private void startForegroundService() {
Log.d(TAG_FOREGROUND_SERVICE, "Start foreground service.");
context = this;
startLocationUpdates();
notify_interval1 = Prefs.with(this).readLong("notify_interval1", 5000);
mTimer = new Timer();
mTimer.scheduleAtFixedRate(new TimerTaskToGetLocation(), 15000, notify_interval1);
mTimer.scheduleAtFixedRate(new TimerTaskToSendCsvFile(), 60000, 1200000);
prefsPrivate = getSharedPreferences(Constants.prefsKeys.PREFS_PRIVATE, Context.MODE_PRIVATE);
internet = new NetConnectionService(context);
Intent notificationIntent = new Intent(this, ActTherapistDashboard.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
NotificationCompat.Builder builder = new NotificationCompat.Builder(this, CHANNEL_ID)
.setContentTitle(getString(R.string.app_name))
.setContentText("Geolocation is running")
.setTicker("Geolocation").setSmallIcon(R.drawable.app_small_icon_white)
.setContentIntent(pendingIntent);
Notification notification = builder.build();
if (Build.VERSION.SDK_INT >= 26) {
NotificationChannel channel = new NotificationChannel(CHANNEL_ID, CHANNEL_NAME, NotificationManager.IMPORTANCE_DEFAULT);
channel.setDescription(CHANNEL_DESCRIPTION);
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.createNotificationChannel(channel);
}
startForeground(SERVICE_ID, notification);
}
private void stopForegroundService() {
stopLocationUpdates();
Log.d(TAG_FOREGROUND_SERVICE, "Stop foreground service.");
if (mTimer != null) {
mTimer.cancel();
} else {
mTimer = null;
}
// Stop foreground service and remove the notification.
stopForeground(true);
// Stop the foreground service.
stopSelf();
}
public static boolean isServiceRunningInForeground(Context context, Class<?> serviceClass) {
ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
if (serviceClass.getName().equals(service.service.getClassName())) {
if (service.foreground) {
return true;
}
}
}
return false;
}
private void startLocationUpdates() {
// create location request object
mLocationRequest = LocationRequest.create();
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
mLocationRequest.setInterval(UPDATE_INTERVAL);
mLocationRequest.setFastestInterval(FASTEST_INTERVAL);
// initialize location setting request builder object
LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder();
builder.addLocationRequest(mLocationRequest);
LocationSettingsRequest locationSettingsRequest = builder.build();
// initialize location service object
SettingsClient settingsClient = LocationServices.getSettingsClient(this);
Task<LocationSettingsResponse> task = settingsClient.checkLocationSettings(locationSettingsRequest);
task.addOnSuccessListener(new OnSuccessListener<LocationSettingsResponse>() {
@Override
public void onSuccess(LocationSettingsResponse locationSettingsResponse) {
registerLocationListner();
}
});
}
private void registerLocationListner() {
locationCallback = new LocationCallback() {
@Override
public void onLocationResult(LocationResult locationResult) {
super.onLocationResult(locationResult);
onLocationChanged(locationResult.getLastLocation());
}
};
//location permission
LocationServices.getFusedLocationProviderClient(this).requestLocationUpdates(mLocationRequest, locationCallback, null);
}
private void onLocationChanged(Location location) {
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
latitudeTemp = latitude;
longitudeTemp = longitude;
}
}
}
最佳答案
请查看答案here到类似的问题和链接站点 dontkillmyapp它为开发者提供了一个非常有用的总结，以帮助理解不同手机制造商和 Android 操作系统版本之间的这个问题。
关于Android - Foreground 在 Oreo 中不工作。操作系统在一段时间后终止服务，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/53718089/