Tutorial how to display X output on Andoroid device.
When you connect your app with phone, you must intsall only X server from Google Play to your Andoroid device. On linxu no requirements needed. The X server app not need root your Andoroid device.
After launch must set allowed ip for connect to this device loctad menu -> access control. Set here ip of your PC/Server.
Now set bash variable display to <ip of android device>:0
export DISPLAY="192.168.1.2:0"
xclock # and run some X application
That’s all. Easy.