I’m doing some things not involving the OH Android app, but still tasker and OH related. In my case, these actions are for some cheap wall-mounted tablets:
Action A - Show video overlay on tablet when activity detected
This one is handy since you can get a hands-free view for who’s at the door.
On motion detection for each zone, I have OH send an MQTT message out. Tasker picks up the activity and triggers the Overlays app to show a live camera feed on top of whatever screen is on at the time.
Quick sample:
https://i.imgur.com/UbGjPli.mp4
Action B - Turn on tablet when motion detected
To save power and display, I have the tablets sleep after inactivity.
Similar to above, this one uses MQTT for each room. From there, tasker picks up the MQTT trigger (with the help of the awesome tasker MQTT plugin), wakes the display, and automatically sets it to the default view.