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.
Bundle our custom ExoPlayer components into aar instead of directly
depending on the project. This just makes things far better regarding
ease of use and reproducible builds.
Expose a custom MediaButtonReceiver that handles the media button
intent. This is not because I wanted to implement this. Some apps
like gadgetbridge just blindly query ACTION_MEDIA_BUTTON instead of
relying on the more modern MediaController API, which I expected
most apps would use instead.
Resolves#62.
Extend edge-to-edge to versions below Android Oreo. This is done
through tinting the navigation bar colors on those versions,
circumventing the coloring issue.
Add a "Dynamic" replaygain mode inspired by the FooBar2000 plugin. This
will automatically determine whether the playback is in an album or not
and use the album gain or track gain accordingly.
Use a custom ExoPlayer fork with the FLAC extension enabled. This
greatly improves the listening experience, as it enables metadata
support on OGG files and FLAC files to be played below API 27.
