little vGL图片绘制

• 图片资源准备

在线图片转换https://littlevgl.com/image-to-c-array

转换好的图片C数组下载

链接：https://pan.baidu.com/s/1_Wk7PH93_bIh29pHsaOVRA  提取码：qq3b 

• 将转换好的my_jumper.c加入到工程
• 声明my_jumper

                   LV_IMG_DECLARE(my_jumper)

LV_IMG_DECLARE宏定义原型如下 

/*Use this macro to declare an image in a c file*/
#define LV_IMG_DECLARE(var_name) extern const lv_img_dsc_t var_name;

• 写测试代码加载图片

void bitmap_test_demo(void) {
    lv_obj_t* img1 = lv_img_create(lv_scr_act(), NULL);
    lv_img_set_src(img1, &my_jumper);
    lv_obj_align(img1, NULL, LV_ALIGN_CENTER, 0, -20);

    lv_obj_t* img2 = lv_img_create(lv_scr_act(), NULL);
    lv_img_set_src(img2, LV_SYMBOL_AUDIO LV_SYMBOL_VIDEO
        LV_SYMBOL_OK LV_SYMBOL_LIST
        LV_SYMBOL_CLOSE LV_SYMBOL_HOME
        LV_SYMBOL_WIFI LV_SYMBOL_BATTERY_EMPTY
        LV_SYMBOL_BLUETOOTH);
    lv_obj_align(img2, img1, LV_ALIGN_OUT_BOTTOM_MID, 0, 20);
}

• 调用bitmap_test_demo函数，编译运行