App is not working when lockscreen is on

[Taifun]

The alarmmanager extension is able to start your app at a given time. To play a sound and to send an sms is also possible behind the lockscreen.. I already built a similar app, so I know, what I'm talking about... To get the location in the background, you might want to use additionally the locationservice extension.

App Inventor Extensions: Alarm Manager | Pura Vida Apps

App Inventor Extensions: Location Service | Pura Vida Apps

To play a sound after excessive movement in the background try the itoo extension

Open Source • Background Tasks: Itoo

I understand what you want to achive With the current system in place, this is not possible. Few months ago, I was experimenting with a Automatic Async extension that lets you easily manage and dynamically spawn many threads, however it was not released. Alternatively, you can use AsyncProcedure extension written by Ewpatton, that lets you call procedures on a different thread.

EDIT: for a small example see also here

Run app in background, that fires an alarm whenever phone is shaking

here is a small test project to get you started after shaking, a voice tells you how many times you already shaked [Screenshot 2024-03-13 102329] shakeIt.aia (69.6 KB) Taifun

Taifun