问题
SUBJ: creating a window-based mxml component, but in design mode all components that I'm adding are not movable, why? If I create component based on group f.e., it's ok, but based on window - they are frozen. Using Flash Builder 4.6
回答1:
I guess it's a bug that Adobe needs to look into.
But in the meantime, you can use <mx:Window> and change them all to <s:Window> before you will finally build the release version of the project.
回答2:
I am facing the same problem and it's very frustrating. I don't know whether it's a bug or not, but it happens in Flash builder 4.5 too.
What I figured out so far is that instead of using a <s:Window> you can actually use a <mx:Window>and then it will work as expected.
In the other hand I would like to be able to use the spark window instead. It's a very annoying tiny problem!
来源：https://stackoverflow.com/questions/9032610/air-components-in-window-based-mxml-component-are-frozen