Creating_completed()never called. Even after the Group object has been created.
That can happen if there is an “invalidation loop” caused by the children of the Group. Sometimes the size and position of the children cannot be determined and the layout manager keeps trying to re-layout the children.
This is possible, because there is a Image child, and the image may not be loaded at this point. But what about "initialize" event? If I change creationComplete to initialize, the function is not called either.
You are right, I use new operator to create an instance of the mxml. But before I adding it to any parent element.
So how to do? Because the mxml does not have a constructor, I'm expecting to use initialize/creationComplete to acheive a constructor.