audiobookshelf-app [Enhancement] Reduce battery usage

Steps to reproduce

Run app in background

Expected behaviour

It should not use large amounts of battery

Actual behaviour

In the last 1-2 weeks or so, keeping ABS app open in the background uses large amounts of battery

Environment data

Audiobookshelf Version: 2.8.0

[ ] Android App?
[x] iOS App?

iOS Issue

iOS Version: 17.3.1 // 0.9.72-beta

iPhone model: 12

Feb 26 '24 08:02 p-rintz

I use an iPhone 15 IOS 17.4.1 and typically get about 3 hours with ABS 12% battery. This with local books only.

With a 10 day view I get 22 hours and 5% total battery drain. I don't know how Apple calculates these numbers :D

Note: On the road I use tailscale connection back to my server and then ABS and tailscale use crazy amount of battery. Still this has been calculated to my 10 days usage and still overall low.

May 24 '24 10:05 TeroKeso

Considering this is now an enhancement and not a bug, I don't think it should be a blocker for the ios app to come out of beta. (#541)

May 29 '24 04:05 hjk321

I'm trying to find some piece of information to understand why i'm out of juice so fast I don't have knowledge in Xcode, then probably all of this can be wrong

I kept the app running, playing an audiobook in the background with the device on standby, and I got these data after 1 hour:

After 1 hour

Look at the major problems: Overhead and the Network. In a 1-hour period, the gauge has always been in the Hard range.

Regarding the overhead, Apple says: Overhead represents energy use as a result of bringing up radios and other system resources your app needs to perform work.

Based on this, I activated the Network Inspector. Times in times, a POST request is sent to the session endpoint. I commented out the ReportProgress code just to check, and tried to run it again.