Fixes, improvements

app/src/main/java/eu/faircode/email/ActivityMain.java

@@ -58,7 +58,7 @@ public class ActivityMain extends AppCompatActivity implements FragmentManager.O
                         startActivity(new Intent(ActivityMain.this, ActivitySetup.class));
                     else {
                         startActivity(new Intent(ActivityMain.this, ActivityView.class));
-                        ServiceSynchronize.init(ActivityMain.this);
+                        ServiceSynchronize.init(ActivityMain.this, false);
                     }
                     finish();
                 }

app/src/main/java/eu/faircode/email/Helper.java

@@ -98,6 +98,9 @@ import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
 import static androidx.browser.customtabs.CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION;
 
 public class Helper {
+    static final int NOTIFICATION_SYNCHRONIZE = 1;
+    static final int NOTIFICATION_EXTERNAL = 2;
+
     static final int JOB_DAILY = 1001;
 
     static final int AUTH_TYPE_PASSWORD = 1;

app/src/main/java/eu/faircode/email/ReceiverAutostart.java

@@ -33,7 +33,7 @@ public class ReceiverAutostart extends BroadcastReceiver {
         if (Intent.ACTION_BOOT_COMPLETED.equals(intent.getAction()) ||
                 Intent.ACTION_MY_PACKAGE_REPLACED.equals(intent.getAction())) {
             EntityLog.log(context, intent.getAction());
-            ServiceSynchronize.init(context);
+            ServiceSynchronize.init(context, true);
 
             Thread thread = new Thread(new Runnable() {
                 @Override

app/src/main/java/eu/faircode/email/ServiceExternal.java

@@ -1,34 +1,36 @@
 package eu.faircode.email;
 
-import android.app.IntentService;
+import android.app.Notification;
+import android.app.Service;
 import android.content.Intent;
 import android.content.SharedPreferences;
+import android.os.Build;
+import android.os.IBinder;
 import android.preference.PreferenceManager;
 
 import androidx.annotation.Nullable;
 
-public class ServiceExternal extends IntentService {
+public class ServiceExternal extends Service {
     private final static String ACTION_ENABLE = "eu.faircode.email.ENABLE";
     private final static String ACTION_DISABLE = "eu.faircode.email.DISABLE";
 
     // adb shell am startservice -a eu.faircode.email.ENABLE
     // adb shell am startservice -a eu.faircode.email.DISABLE
 
-    public ServiceExternal() {
-        super(ServiceExternal.class.getName());
-    }
-
-    public ServiceExternal(String name) {
-        super(name);
-    }
 
     @Override
-    protected void onHandleIntent(@Nullable Intent intent) {
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        try {
+            startForeground(Helper.NOTIFICATION_EXTERNAL, getNotification().build());
+
+            Log.i("Received intent=" + intent);
+            Log.logExtras(intent);
+
             if (intent == null)
-            return;
+                return START_NOT_STICKY;
 
             if (!Helper.isPro(this))
-            return;
+                return START_NOT_STICKY;
 
             Boolean enabled = null;
             if (ACTION_ENABLE.equals(intent.getAction()))
@@ -46,5 +48,35 @@ public class ServiceExternal extends IntentService {
                     ServiceSynchronize.reload(this, "external");
                 }
             }
+
+            return START_NOT_STICKY;
+        } finally {
+            stopForeground(true);
+        }
+    }
+
+    @Nullable
+    @Override
+    public IBinder onBind(Intent intent) {
+        return null;
+    }
+
+    private Notification.Builder getNotification() {
+        Notification.Builder builder;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
+            builder = new Notification.Builder(this, "service");
+        else
+            builder = new Notification.Builder(this);
+
+        builder
+                .setSmallIcon(R.drawable.baseline_compare_arrows_white_24)
+                .setContentTitle(getString(R.string.tile_synchronize))
+                .setAutoCancel(false)
+                .setShowWhen(false)
+                .setPriority(Notification.PRIORITY_MIN)
+                .setCategory(Notification.CATEGORY_STATUS)
+                .setVisibility(Notification.VISIBILITY_SECRET);
+
+        return builder;
     }
 }

app/src/main/java/eu/faircode/email/ServiceSynchronize.java

@@ -141,8 +141,6 @@ public class ServiceSynchronize extends LifecycleService {
     private ServiceManager serviceManager = new ServiceManager();
     private ExecutorService executor = Executors.newSingleThreadExecutor(Helper.backgroundThreadFactory);
 
-    private static final int NOTIFICATION_SYNCHRONIZE = 1;
-
     private static final int CONNECT_BACKOFF_START = 8; // seconds
     private static final int CONNECT_BACKOFF_MAX = 64; // seconds (totally 2 minutes)
     private static final int CONNECT_BACKOFF_AlARM = 15; // minutes
@@ -184,7 +182,7 @@ public class ServiceSynchronize extends LifecycleService {
             @Override
             public void onChanged(@Nullable TupleAccountStats stats) {
                 NotificationManager nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
-                nm.notify(NOTIFICATION_SYNCHRONIZE, getNotificationService(stats).build());
+                nm.notify(Helper.NOTIFICATION_SYNCHRONIZE, getNotificationService(stats).build());
             }
         });
 
@@ -296,7 +294,7 @@ public class ServiceSynchronize extends LifecycleService {
         stopForeground(true);
 
         NotificationManager nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
-        nm.cancel(NOTIFICATION_SYNCHRONIZE);
+        nm.cancel(Helper.NOTIFICATION_SYNCHRONIZE);
 
         super.onDestroy();
     }
@@ -307,7 +305,7 @@ public class ServiceSynchronize extends LifecycleService {
         Log.i("Service command intent=" + intent + " action=" + action);
         Log.logExtras(intent);
 
-        startForeground(NOTIFICATION_SYNCHRONIZE, getNotificationService(null).build());
+        startForeground(Helper.NOTIFICATION_SYNCHRONIZE, getNotificationService(null).build());
 
         super.onStartCommand(intent, flags, startId);
 
@@ -334,7 +332,7 @@ public class ServiceSynchronize extends LifecycleService {
 
                     case "init":
                         // Network events will manage the service
-                        serviceManager.service_init();
+                        serviceManager.service_init(intent.getBooleanExtra("schedule", false));
                         break;
 
                     case "schedule":
@@ -3019,13 +3017,16 @@ public class ServiceSynchronize extends LifecycleService {
             return prefs.getBoolean("enabled", true);
         }
 
-        private void service_init() {
-            EntityLog.log(ServiceSynchronize.this, "Service init");
+        private void service_init(boolean schedule) {
+            boolean enabled = isEnabled();
+            EntityLog.log(ServiceSynchronize.this,
+                    "Service init schedule=" + schedule + " enabled=" + enabled);
 
+            if (schedule) {
                 next_schedule();
-
-            boolean enabled = isEnabled();
                 JobDaily.schedule(ServiceSynchronize.this, enabled);
+            }
+
             if (!enabled)
                 stopSelf();
         }
@@ -3350,10 +3351,11 @@ public class ServiceSynchronize extends LifecycleService {
         }
     }
 
-    public static void init(Context context) {
+    public static void init(Context context, boolean schedule) {
         ContextCompat.startForegroundService(context,
                 new Intent(context, ServiceSynchronize.class)
-                        .setAction("init"));
+                        .setAction("init")
+                        .putExtra("schedule", schedule));
     }
 
     public static void schedule(Context context) {