Dark Mode and Configuration Changes

When the device changes between normal and dark mode, any visible activities immediately will undergo a configuration change, for the uiMode configuration. Even manual changes to DayNight (e.g., setDefaultNightMode()) will recreate your activity, as if it underwent a configuration change.

If your activities already handle configuration changes (e.g., screen rotation), you should be fine. However:

• If you have activities where you skipped supporting configuration changes, you will need to fix that soon
• If you have activities where you are handling configuration changes manually, via android:configChanges in the manifest, consider whether you want to handle uiMode manually as well