Merge pull request #1868 from smartdevicelink/bugfix/issue_1867_bt_notification_error

Bugfix/issue 1867 Bluetooth notification error fix

Author: joeygrover

android/sdl_android/src/main/java/com/smartdevicelink/transport/SdlRouterService.java

@@ -3912,6 +3912,13 @@ public void clear() {
     @TargetApi(11)
     @SuppressLint("NewApi")
     private void notifySppError() {
+        synchronized (FOREGROUND_NOTIFICATION_LOCK) {
+            // Check first to see if the RouterService is in the Foreground
+            // This is to prevent the notification appearing in error
+            if (!this.isForeground) {
+                return;
+            }
+        }
         Notification.Builder builder;
         if (android.os.Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
             builder = new Notification.Builder(getApplicationContext());