I really need help to know how to make my app start on android phones with the stage and the objects at the same time in the same size in full screen, I've tried everything and so far no solution is not possible. Everything I try still appears on a white background below the app and never gets full screen. If any developer knows something to help me, I appreciate it.
When I did this sort of development, I'd always position and size everything programattically. You can get a lot of native hardware capabilities of mobiles from: https://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/system/Capabilities.html
I'm going to go this same way, Thank you.
Updated: stage.scaleMode = StageScaleMode.EXACT_FIT solved all my problems