addListener method
- ObjectEventListener listener
Register a listener that is called every time an object event is dispatched.
Listeners can be removed with removeListener.
Only call this when kFlutterMemoryAllocationsEnabled is true.
Implementation
void addListener(ObjectEventListener listener){
if (!kFlutterMemoryAllocationsEnabled) {
return;
}
if (_listeners == null) {
_listeners = <ObjectEventListener?>[];
_subscribeToSdkObjects();
}
_listeners!.add(listener);
}