AS3在库中获得了movieclip的子代

Question

So I have this movievlip in my library, which is an instance of TestClass . There are four other movieclips in the parent movieclip. This is TestClass :

package  {
    import flash.display.MovieClip;

    public class TestClass extends MovieClip{

        public function TestClass() {
            for(var i:int = 0; i < numChildren; i++){
                trace(getChildAt(i));
            }
        }
    }   
}

However, this traces null four times, while it should trace [object MovieClip] right? Also, when I set the names of the movieclips under the accessibility tab and then use getChildByName('test') , it still traces null .

My question is: how can I get specific children from a movieclip in my library? For instance, when there are two children, I only want to get the child with the name test

Answer 1

Firstly, I tried to reproduce your issue.

1. I created a parent MovieClip and set a linkage name as "TestClass". Also, I added four child MovieClips to the TestClass .

2. I created TestClass.as file with the same code.

In the output tab I see four [object MovieClip] lines. I don't know why you got null . Can you provide FLA file?

---

Why you set a name of child in the accessibility tab? You should set name in the "instance name" of properties panel.

So you can address to child by its name: child_1 in my case. trace(child_1); returns [object MovieClip] .