Is there any way to take photos with Taifun camera with the locked screen?
For now i can't do more 
I do not know... probably not...
You can try some experiments together with the itoo extension
Let us know about your progress
Taifun
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Know it could be off-theme, but i have this error when i try to open a new task:
No such service ComponentInfo{edu.mit.appinventor.aicompanion3/xyz.kumaraswamy.itoo.ItooJobService}
Note: You will not see another error reported for 5 seconds.
Anyone used itoo extension and could help or should i open a new post?
post in this thread Open Source • Background Tasks: Itoo
and add a screenshot of your relevant blocks
Taifun
Yes, I am pretty sure it will not work, even not with the itoo extension and also not with a Foreground service.
And that's a good thing, because who wants their device to take photos unnoticed in idle mode.
Someone might, if a device is setup to take an image every n seconds and then upload it to an online server, like a security camera. I have tried a proprietary app doing this (admittedly with video) but it drains the device battery faster than it can charge 
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Yes, this could make sense for the individual user who is aware of this, but it would be a gateway for “spy apps”.
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