I encountered an error when calling chatController.dispose as the example code.
Error Message:
A ScrollController was used after being disposed. Once you have called dispose() on a ScrollController, it can no longer be used
`
void dispose() {
// ChatController should be disposed to avoid memory leaks
_chatController.dispose(); <-- here
super.dispose();
}
`
Because the ChatController and ChatListWidget call scrollController.dispose() twice time.