protected async override void OnAppearing()
{
if (!initialDataLoaded)
{
chatService = new SignalRService();
chatService.OnMessageReceived += AppendMessage;
chatService.ConfigureConnection(GroupPage.GroupId);
await LoadMessages();
initialDataLoaded = true;
}
if (!chatService.IsConnected)
{
await chatService.StartConnection();
}
base.OnAppearing();
}