How to control show/hide controls immediately after controller is initialized

I'm building a video player screen that can drag down like youtube. When screen is being drag down video player scaling down to a min size, let say its size is 90x60 px. I want to hide video player's controls immediately in case the screen is being drag down too fast when controls still display (it's too big for the size of 90x60). Can I somehow get it done? I noticed if I can access to PlayerNotifier, I can do it by the setter hideStuff