I have an Android app that accesses the camera and sends SMS messages. My problem is that the phone will be charged by a battery, so the power usage has to be the minimum.
I realized that the screen consumes most part of the battery. Is there a way to open the camera with the screen blanked?
I also thought to remove the display, but I read that Android performs a hardware test in the boot. The system will boot without the display?
What other ways to reduce power usage in Android do you recommend me?
Any tip will be very helpful,