No feedback to user when app can't connect with server

[klew]

In scenario where Supla server is down, from user perspective app hangs on connecting (green screen) with no information to user that it can't connect with server.

Connection attempts should stop at some point of time and feedback should be displayed for user.

In logs I seen following repeated continuously:

2022-10-04 21:53:30.783 23018-23044/? D/SuplaClientThread: Connecting
2022-10-04 21:53:30.798 23018-23044/? D/LibSuplaClient: SSL version: OpenSSL 1.0.2r 26 Feb 2019
2022-10-04 21:53:30.898 23018-23044/? D/LibSuplaClient: Can't connect to host beta-cloud.supla.org
2022-10-04 21:53:30.899 23018-23044/? D/SuplaClientThread: Nie można połączyć się z serwerem
2022-10-04 21:53:32.786 23018-23044/? D/SuplaClientThread: Connecting
2022-10-04 21:53:32.800 23018-23044/? D/LibSuplaClient: SSL version: OpenSSL 1.0.2r 26 Feb 2019
2022-10-04 21:53:33.204 23018-23044/? D/LibSuplaClient: Can't connect to host beta-cloud.supla.org
2022-10-04 21:53:33.204 23018-23044/? D/SuplaClientThread: Nie można połączyć się z serwerem
2022-10-04 21:53:34.787 23018-23044/? D/SuplaClientThread: Connecting