Launcher3 Site

It acts as the gateway to all other installed applications.

Part of the codebase from Android 2.2 until just before KitKat. launcher3

It handles essential UX actions like unlocking the device, opening/closing apps, and managing widgets. Technical Evolution It acts as the gateway to all other installed applications

A fundamental view that handles the dragging and dropping of icons and widgets. launcher3

Launcher3 uses a complex, event-driven structure to manage home screen elements:

It manages the home screen layout (desktop) and the vertical or horizontal list of apps (drawer).