Remove 'Focus Launcher is running' notification

[tyler-dane]

As a user, I want to install & use Focus Launcher without seeing any unnecessary notifications, so that I can focus more on using my phone mindfully.

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This persistent notification was introduced in #20 (#19). As I understand, the more recent version of Android SDK enforced stricter notifications. It is possible to avoid this notification (by turning Focus Launcher back into a background service, I think).

When @zed13 tried that initially, the app started crashing.

Fgure out how to avoid that notification while maintaining the app's stability.

[zed13]

This persistent notification was introduced in #20 (#19). As I understand, the more recent version of Android SDK enforced stricter notifications. It is possible to avoid this notification (by turning Focus Launcher back into a background service, I think).
When @zed13 tried that initially, the app started crashing.

You understood me in a wrong way. It's just impossible to have a background task without such notifications on new Android's versions. Here is some info about such restriction https://developer.android.com/about/versions/oreo/background.

[tyler-dane]

It's just impossible to have a background task without such notifications

But how do other launchers get setup without displaying that notification (Before Launcher, for example)?

[zed13]

It's quite interesting actually. I've looked at Before launcher screen shots at Google Play. Looks like they use special workaround for this NotificationListenerService. To work without notification it should be properly configured. I've never worked with NotificationListenerService.

There is such class in our codebase. And it has appropriate config in AndroidManifest. Why previous developers have decided to make it foreground - I don't know.

Never the less, there are two additional services wich are run as foreground service:

1. AlarmService - redeliver notifications in specified period of time. It looks like work for NotificationListenerService (It has special api for such things).
2. StatusBarService - tracks down user time in junk apps. I think it could be replaced with calls to special api. So, need to investigate further.

[tyler-dane]

Interesting. OK, so it sounds like it's possible, but would take some more investigation and work. I say we put this on hold until after the 1.0.0 launch and let the initial user feedback decide when to prioritize this