WhyCan Forum(哇酷开发者社区)

int8_t img_num = 0;

static void btn_2_event_handler(lv_obj_t * btn, lv_event_t event)
{
	if (event == LV_EVENT_SHORT_CLICKED)
	{
		static lv_obj_t * imgtxjg = NULL;
		lv_obj_t * page = lv_obj_get_parent(btn);
		if (imgtxjg)
			lv_obj_del(imgtxjg, NULL);

		img_num++;
		if (img_num > 12)
			img_num = 0;

		char name[30] = { 0 };
		sprintf(name, "P:/lv_apk/%s", img_name[img_num]);
		printf("%s\r\n", name);
		//		lv_img_set_src(lv_obj_get_child(lv_obj_get_parent(btn), NULL), name);

		imgtxjg = lv_img_create(page, NULL);
		lv_img_set_src(imgtxjg, name);
		lv_obj_align(imgtxjg, page, LV_ALIGN_CENTER, 0, 20);
	}
}

static void btn_1_event_handler(lv_obj_t * btn, lv_event_t event)
{
	if (event == LV_EVENT_SHORT_CLICKED)
	{
		lv_obj_t * imgtxjg = NULL;
		lv_obj_t * page = lv_obj_get_parent(btn);
		if (imgtxjg) {
			lv_obj_del(imgtxjg, NULL);
		}

		img_num--;
		if (img_num < 0)
			img_num = 12;

		char name[30] = { 0 };
		sprintf(name, "P:/lv_apk/%s", img_name[img_num]);

		imgtxjg = lv_img_create(page, NULL);
		lv_img_set_src(imgtxjg, name);
		lv_obj_align(imgtxjg, page, LV_ALIGN_CENTER, 0, 20);

	}
}