How to combine the alexa android app and OH2 HABpanel on a android tablet?

Hi guys,

I want to set up a wall-tablet to control my smart home. I am used to programming in raspbian, but because time is short, I am thinking of using an android tablet instead.

The tablet should show me my OH2 floorplan. I also want to talk to alexa.
I don´t have any amazon hardware devices. I already talk to alexa using it on a raspberry pi or my android mobile phone app etc.
I like that because it is push to talk only. Nobody is listining if I don´t touch the button.

Now I am wondering…Is there a way to combine the alexa app and the OH2 floorplan?
I want to push a button on the floorplan to get alexa listening.

Thanks for your support.