Use some new Android APIs

app/src/main/java/org/traccar/client/MainFragment.java

@@ -51,6 +51,8 @@ public class MainFragment extends PreferenceFragment implements OnSharedPreferen
 
     private static final String TAG = MainFragment.class.getSimpleName();
 
+    private static final int ALARM_MANAGER_INTERVAL = 15000;
+
     public static final String KEY_DEVICE = "id";
     public static final String KEY_URL = "url";
     public static final String KEY_INTERVAL = "interval";
@@ -259,9 +261,9 @@ public class MainFragment extends PreferenceFragment implements OnSharedPreferen
 
         if (permission) {
             setPreferencesEnabled(false);
-            getActivity().startService(new Intent(getActivity(), TrackingService.class));
+            ContextCompat.startForegroundService(getActivity(), new Intent(getActivity(), TrackingService.class));
             alarmManager.setInexactRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
-                    15000, 15000, alarmIntent);
+                    ALARM_MANAGER_INTERVAL, ALARM_MANAGER_INTERVAL, alarmIntent);
         } else {
             sharedPreferences.edit().putBoolean(KEY_STATUS, false).apply();
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {

app/src/main/java/org/traccar/client/ShortcutActivity.java

@@ -22,6 +22,7 @@ import android.location.Location;
 import android.location.LocationManager;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
+import android.support.v4.content.ContextCompat;
 import android.support.v7.app.AppCompatActivity;
 import android.widget.Toast;
 
@@ -94,13 +95,13 @@ public class ShortcutActivity extends AppCompatActivity {
             switch (action) {
                 case EXTRA_ACTION_START:
                     PreferenceManager.getDefaultSharedPreferences(this)
-                            .edit().putBoolean(MainFragment.KEY_STATUS, true).commit();
+                            .edit().putBoolean(MainFragment.KEY_STATUS, true).apply();
-                    startService(new Intent(this, TrackingService.class));
+                    ContextCompat.startForegroundService(this, new Intent(this, TrackingService.class));
                     Toast.makeText(this, R.string.status_service_create, Toast.LENGTH_SHORT).show();
                     break;
                 case EXTRA_ACTION_STOP:
                     PreferenceManager.getDefaultSharedPreferences(this)
-                            .edit().putBoolean(MainFragment.KEY_STATUS, false).commit();
+                            .edit().putBoolean(MainFragment.KEY_STATUS, false).apply();
                     stopService(new Intent(this, TrackingService.class));
                     Toast.makeText(this, R.string.status_service_destroy, Toast.LENGTH_SHORT).show();
                     break;

app/src/main/java/org/traccar/client/TrackingService.java

@@ -24,6 +24,7 @@ import android.content.Intent;
 import android.os.Build;
 import android.os.IBinder;
 import android.support.v4.app.NotificationCompat;
+import android.support.v4.content.ContextCompat;
 import android.util.Log;
 
 public class TrackingService extends Service {
@@ -72,7 +73,7 @@ public class TrackingService extends Service {
         trackingController.start();
 
         startForeground(NOTIFICATION_ID, createNotification(this));
-        startService(new Intent(this, HideNotificationService.class));
+        ContextCompat.startForegroundService(this, new Intent(this, HideNotificationService.class));
     }
 
     @Override