Could someone explain what the battery "Allow Background Usage" and Wi-Fi "Background data" toggles do?
When exactly does "background" occur?
- Is that when the app has been opened but is not the presently active app (where you can swipe up and see all the apps that haven't been fully closed)?
- Is an app still in the "background" if it has been fully closed out?
If I switch these toggles off, and an app is fully closed, or it is open but not the presently active app, what can the app do?
- Are there still processes running that are able to monitor, receive, or send communications (via the network interface or via IPC)?
- Are all app processes not allowed until the app is currently open (either actively being used, or open and not fully closed out)?
I am trying to make permission decisions for several apps (including Google play services/store), and I would like to understand what exactly an app is capable of doing if it has been fully closed out or is open but not the presently active app.
Thanks ahead of time!!