■ LVGL-特殊符号

/* 直接调用 */
lv_label_set_text(my_label, LV_SYMBOL_OK);
/* 与字符一起用 */
lv_label_set_text(my_label, LV_SYMBOL_OK "Apply");
/* 多个符号一起用 */
lv_label_set_text(my_label, LV_SYMBOL_OK LV_SYMBOL_WIFI LV_SYMBOL_PLAY);