AppCompat DayNight theme not work on Android 6.0?

Question

I am using the new Theme.AppCompat.DayNight added in Android Support Library 23.2

On Android 5.1 it works well.

On Android 6.0, act

Answer 1

As of now, no Gradle dependency is needed to enable the night mode other than androidx.appcompat:appcompat:1.0.2 which will already be present. Make sure to change the default theme from Theme.AppCompat.Light.DarkActionBar to Theme.AppCompat.DayNight.DarkActionBar in the styles.xml file and then do AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES) to switch to the night mode. I have tested it in APIv23(Android 6.0) and above and it is working fine. For a better explanation see this codelab by Android