What is launcher3 in android?

Launcher3 is the default launcher app used in the Android Open Source Project (AOSP) codebase. It is responsible for managing the home screen, app drawer, and other system interfaces related to launching and managing apps.

Launcher3 includes essential features like app shortcuts, widgets, and support for customizing the home screen layout and appearance. It is also highly customizable as developers can modify it to add their own features and functionalities.

Several Android device manufacturers use Launcher3 as a base for their own custom launchers, such as Samsung's One UI and OnePlus' OxygenOS.

Overall, Launcher3 is an essential component of the Android operating system that provides a seamless and intuitive user interface for launching and managing apps on Android devices.