Rework audio focus to rely on the native ExoPlayer implementation
instead of a custom implementation.
Previously, we avoided ExoPlayer's AudioFocus system as it never
played after a transient lost. A few versions later now through,
now it does, so we may as well switch to it. This does introduce
a bug where ReplayGain functionality will conflict with audio
focus, but I hope to eliminate this with #115 as I switch to
an AudioProcessor instead of a callback.
Turn the headset focus setting into the headset autoplay setting.
The way auxio handles headsets is...odd. Sometimes the MediaSession
handles it and Auxio could not care less, and sometimes Auxio actually
needs to handle it. As a result, the idea of being able to disable
headset focus is more or less moot because it will only apply to some
devices and not others.
On the other end, the way Auxio automatically begins playback once a
headset is plugged in is also quite weird. It only works on wired
headsets, and when it does, it overrides all other apps that might
also be playing audio. It's not to say that it's a bad feature, but
it's also one that I don't want to make the defualt. Auxio should
still play along within the confines of Android's expectations, after
all.
Replacing the existing "Headset focus" setting with a new "Headset
autoplay" setting solves both of these issues, as it prevents a
mis-guided disabling of the setting that doesn't actually disable
the feature and it relegates the quirky autoplay behavior to an
setting not enabled by default.
Mostly migrate to Material 3/Material You.
- Auxio should now follow dynamic colors on Android 12
- Accents have been regenerated to align with the new color roles
- Some colors have been tweaked here and there to line up with the
new design system
- Dialogs were not fully migrated, but that's because Material3 dialogs
look god-awful.
- Accent class was reworked to take up less memory
Now that this is out of the way, I can focus on other UI things before
the release of 2.0.0.
Refactor styles again, this time trying to seperate the more
layout-specific attributes so that layouts become more re-usable.
This also updates the naming conventions of styles.
Change the loop behavior to something that is actually sensible,
with [ ] looping the whole playlist and [ 1 ] looping the song.
This also removes the "Do on end" setting. A new stop option may
be reintroduced, however.
This resolves issue #13.
