Updated icon + make it android < 12 friendly

app/android/res/drawable/ic_notification.xml

@@ -3,22 +3,8 @@
     android:viewportHeight="234"
     android:width="234dp"
     android:height="234dp">
-    <group
-        android:scaleX="1.393633"
-        android:scaleY="1.393633"
-        android:translateX="-46.05505"
-        android:translateY="-46.05505">
-        <path
-            android:pathData="M117 159.67h42.66V74.34H117V53h64v128h-64z"
-            android:fillColor="#FFFFFF" />
-        <path
-            android:pathData="M82.4724 117c0 19.072 15.4555 34.517 34.5176 34.517V82.4819C97.9179 82.4819 82.4724 97.9374 82.4724 117Z"
-            android:fillColor="#FFFFFF" />
-        <path
-            android:pathData="M117 159.67H74.33V74.34H117V53H53v128h64z"
-            android:fillColor="#FFFFFF" />
-        <path
-            android:pathData="M151.518 117c0 19.072 -15.456 34.517 -34.518 34.517V82.4819c19.072 0 34.518 15.4555 34.518 34.5181z"
-            android:fillColor="#FFFFFF" />
-    </group>
+    <path
+        android:pathData="M121.00158 173.91574v28.45121h81.36537V31.633052h-81.36537v28.464542h52.90083V173.91574Zm0 -11.04568V71.129138c23.56394 2.027331 42.04055 21.791647 42.04055 45.870862 0 24.09082 -18.48728 43.8426 -42.04055 45.87006zm-8.00316 39.49689V173.91574H60.084255V60.097594H112.99842V31.633052H31.633052V202.36695Zm0 -39.49689V71.127937C89.428343 73.149 70.945065 92.91625 70.945065 117c0 24.09482 18.494216 43.8506 42.053355 45.87006z"
+        android:fillType="evenOdd"
+        android:fillColor="#FFFFFF" />
 </vector>

app/android/src/uk/co/lutraconsulting/PositionTrackingService.java

@@ -154,13 +154,17 @@ public int onStartCommand( Intent intent, int flags, int startId ) {
 
         PendingIntent pendingIntent = PendingIntent.getActivity( this, 0, notificationIntent, PendingIntent.FLAG_IMMUTABLE );
 
-        Notification notification = new Notification.Builder( this, CHANNEL_ID )
+        Notification.Builder notificationBuilder = new Notification.Builder( this, CHANNEL_ID )
             .setSmallIcon( R.drawable.ic_notification )
             .setContentTitle( "Tracking in progress" )
             .setColor( getResources().getColor( R.color.grassColor ) )
-            .setForegroundServiceBehavior( Notification.FOREGROUND_SERVICE_IMMEDIATE )
-            .setContentIntent( pendingIntent )
-            .build();
+            .setContentIntent( pendingIntent );
+
+        if ( Build.VERSION.SDK_INT >= Build.VERSION_CODES.S ) {  // only Android >= 12
+            notificationBuilder.setForegroundServiceBehavior( Notification.FOREGROUND_SERVICE_IMMEDIATE );
+        }
+
+        Notification notification = notificationBuilder.build();
 
         startForeground( SERVICE_ID, notification );