Theme Framework
Introduction
About the Subsystem
The theme framework subsystem consists of the wallpaper management service and lock screen management service, providing basic capabilities such as wallpaper setting, screen locking, and screen unlocking for the system.
Architecture
Figure 1 Architecture of the theme framework subsystem
Directory Structure
base/theme
├──wallpaper_mgr # Wallpaper management service
└──screenlock_mgr # Lock screen management service
Services
Wallpaper Management Service
The wallpaper management service provides APIs for setting wallpapers and comes with a wallpaper switching notification mechanism.
Lock Screen Management Service
The lock screen management service provides capabilities for locking and unlocking the screen, supports screen lock and unlock notifications, and enables lock screen applications to register system event callbacks.