For years, Android users have been asking Google to add a dark design or dark mode to the mobile platform. With Android Oreo, Google has added a dark mode that has been activated based on the wallpaper you are using. Google deleted the feature and said it was accidentally published.
With Android P coming later this year, not only is dark mode available again, but there is now a manual switch that allows you to switch to this mode when needed.
To switch to dark mode in Android P, open the Settings app and select Display . Then tap Advanced and scroll down until you see Device theme ; tap it, followed by Dark .
That's all that goes with it. Now, if you're viewing your app drawer or quick settings card (swipe down from the top of the screen), it's in dark mode.