private async Task AddBroker()
{
var address = _editTextAddress.Text;
var port = int.Parse(_editTextPort.Text);
var client = await _mqttService.AddBroker(address, port);
await client.Connect();
//await client.Subscribe("#");
Toast.MakeText(this, "Broked added", ToastLength.Short);
SetUpManageBrokers();
}