Flash AS3将变量从子类传递到父类

Question

I need to somehow do this, I know that I can use a localconnection, but I don't think that that's really necessary. I should be able to do something just as simple as parent.foo() to call the function foo.

This is my code that isn't working.

        if(this.parent)
            (this.parent as MovieClip).foo();

The error I'm getting is saying that the function foo doesn't exist, but I am sure that it does exist.

I don't know if this matters, but the child is a class, not a SWF or anything, I'm only saying this though because when I Googled possible solutions, the methods people use are with SWF's.

Anyways, thanks for your help

Answer 1

Despite the correctness of abhinav answer, I would encourage you to use an Event or Signal instead of this method. You will couple your classes to tightly with this approach.

MovieClip nested:

//use bubbling to enable event listening in deeper displayObjects
dispatchEvent(newEvent("somethingHappened", true));

MovieClip parent

child.addEventListener("somethingHappened", handlerFunction);

function handlerFunction(event:Event):void
{
     this.foo();
}

Answer 2

I believe that your class is added to the parent as a child.

Then, you can just say YourClass(parent).foo();

Additionally, any deeply nested class can also call any parent in the hierarchy of display objects. For example : ParentOfParentClass(parent.parent).foo();