LuatOS/demo/lvgl/win32/lvgl_demo_test/spinner_demo.lua

local spinner_demo = {}

function spinner_demo.demo()
    --Create a Preloader object
    local preload = lvgl.spinner_create(lvgl.scr_act(), nil);
    lvgl.obj_set_size(preload, 100, 100);
    lvgl.obj_align(preload, nil, lvgl.ALIGN_CENTER, 0, 0);
end

return spinner_demo