Consider droping support for Oreo (api 26+) and having Pie as minimum (api 28+)

[MateusRodCosta]

Background info

• Originally Vidya Music was a Android Marshmallow app (api 23+)
• Later on, on version 1.0.0 the Minimum Android version was bumped to Nougat ( api 24+) due to the Android N using OpenJDK and that being considered a more stable environment
• Later on on 1.2.0 the minimum version was update to Oreo (api 26+) on the basis that Android Oreo is what we could call "Modern Android"

Rationale

• The target demographic of Vidya Music are gamers (and some non-gamers) who like to listen to video game music (VGM)
• Gamers are likely to be more tech-savvy than the average user and are somewhat less likely to be running old Android version (this might be different on emerging countries)
• From looking at the stats on the Play Store I believe I at no point have ever seen users running the app on Android 8.x

Current Play Store stats

As of October 1st, 2023 Vidya Music had 57 users:

Version	Amount	Percent
Total	57	100%
Android 13	35	61.4%
Android 12	9	15.79%
Android 11	5	8.77%
Android 9	3	5.26%
Android 14	3	5.26%
Android 10	1	1.75%
Android 12L	1	1.75%

Benefits and drawbacks

• Moving from dex version 038 (Added in Android O) to dex version 039 (added in Android P)
  • benefits so far unknown, could lead to performance improvements
• When minSdk is set to 28, dex files are uncompressed in the APK (source)
  • this means slightly larger APK but shouldn't affect download sizes due to AAB compression and Play Store delivery
• Shaving support for 8.x (Android O) devices
  • it seems no users on that version are interested in the app
• This still doesn't allow us to remove the explicit check for SystemUiMode.edgeToEdge as that feature requires at least Android 10 (api 29)
  • as a benefit this only makes one version I would need to test under the emulator: Android 9

When?

I don't think I would do this change for 1.3.0, so for now it's planned for 2.0.0.