LVGL库实现的简单实时时钟表盘示例代码_lvgl 时钟

LVGL库实现的简单实时时钟表盘示例代码：

#include "lvgl.h"
#include <time.h>
 
static lv_obj_t * screen;
static lv_obj_t * label_time;
static lv_obj_t * label_date;
 
void create_time_label(void)
{
    // 创建时间标签
    label_time = lv_label_create(screen, NULL);
    lv_obj_align(label_time, NULL, LV_ALIGN_IN_TOP_MID, 0, 20);
    lv_label_set_text(label_time, "00:00");
    lv_label_set_align(label_time, LV_LABEL_ALIGN_CENTER);
    lv_obj_set_style_local_text_font(label_time, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, &lv_font_roboto_28);
 
    // 创建日期标签
    label_date = lv_label_create(screen, NULL);
    lv_obj_align(label_date, NULL, LV_ALIGN_IN_TOP_MID, 0, 60);
    lv_label_set_text(label_date, "1 January");
    lv_label_set_align(label_date, LV_LABEL_ALIGN_CENTER);
    lv_obj_set_style_local_text_font(label_date, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, &lv_font_roboto_16);
}
 
void update_time_label(time_t t)
{
    // 更新时间标签