onInit method
Called immediately after the widget is allocated in memory. You might use this to initialize something for the controller.
Implementation
@override
void onInit() {
super.onInit();
_dateString = DateTime.now().millisecondsSinceEpoch.toString();
_groupsEventListenerId = "${_dateString}GWMGroupListener";
_messageEventListenerId = "${_dateString}GWMGMessageListener";
CometChatGroupEvents.addGroupsListener(_groupsEventListenerId, this);
CometChatMessageEvents.addMessagesListener(_messageEventListenerId, this);
CometChatUIEvents.addUiListener(_groupsEventListenerId, this);
}