LVGL Backend

[中文]

brookesia_gui_lvgl is the LVGL backend implementation of brookesia_gui_interface. It maps the resolved JSON UI document model to LVGL objects and provides build-time image packaging.

Scope

• Project integration of the LVGL backend

• Build-time packaging of PNG/JPEG into LVGL image .bin

• Runtime loading, metadata completion, preloading, and caching of .bin, PNG, and JPEG images

For the JSON UI protocol itself, see GUI Interface.

Documents in This Group

Document	Content	When to use
LVGL Json UI Backend Notes	Mapping from the resolved JSON UI model to the LVGL API, image loading and caching, backend pump	Troubleshooting LVGL backend behavior
LVGL Image Packaging	brookesia_gui_lvgl_pack_images(), LVGLImage.py parsing, Python dependencies	Packaging PNG/JPEG resources into package / SPIFFS

• LVGL Json UI Backend Notes
• LVGL Image Packaging

Note

Maintainer sync check: when editing cmake/image_pack.cmake, sync LVGL Image Packaging; when changing image loading, preloading, caching, or JSON UI field mapping, sync LVGL Json UI Backend Notes.