lvgl学习笔记--基础对象1

【LVGL学习笔记】（三）控件使用_学习_煜个头头-GitCode 开源社区

LVGL 基础对象|极客笔记

#include "../../../lv_examples.h"

void lv_ex_obj_1(void)
{
        lv_obj_t * obj1;
        obj1 = lv_obj_create(lv_scr_act(), NULL);
        lv_obj_set_size(obj1, 100, 50);
        lv_obj_align(obj1, NULL, LV_ALIGN_CENTER, -60, -30);

        /*Copy the previous object and enable drag*/
        lv_obj_t * obj2;
        obj2 = lv_obj_create(lv_scr_act(), obj1);
        lv_obj_align(obj2, NULL, LV_ALIGN_CENTER, 0, 0);
        lv_obj_set_drag(obj2, true);

        static lv_style_t style_shadow;
        lv_style_init(&style_shadow);
        lv_style_set_shadow_width(&style_shadow, LV_STATE_DEFAULT, 10);
        lv_style_set_shadow_spread(&style_shadow, LV_STATE_DEFAULT, 5);
        lv_style_set_shadow_color(&style_shadow, LV_STATE_DEFAULT, LV_COLOR_BLUE);

        /*Copy the previous object (drag is already enabled)*/
        lv_obj_t * obj3;
        obj3 = lv_obj_create(lv_scr_act(), obj2);
        lv_obj_add_style(obj3, LV_OBJ_PART_MAIN, &style_shadow);
        lv_obj_align(obj3, NULL, LV_ALIGN_CENTER, 60, 30);
}