Theme change not working

[RkNaing]

Steps to reproduce

1. Set application theme with AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM).
2. Use the system setting (Settings -> Display -> Theme) to toggle Dark theme.

Expected

The application theme should also be changed automatically in accordance with device theme.

[akexorcist]

Since AndroidX AppCompat has per-app language preferences for backward compatibility. Please migrate this library to AndroidX for more stability, compatibility, and longer support from Google team.

See Migrate to AndroidX guide

Thank you for your support