register static method
Implementation
static register(String eventName, AppEventInterface iEvent) {
List<AppEventInterface> events = [];
if (map[eventName] == null) {
events = <AppEventInterface>[];
} else {
events = map[eventName]!;
}
if (events.contains(iEvent)) {
return;
}
events.add(iEvent);
map[eventName] = events;
}