吸附效果

static void scroll_event_handler(lv_event_t *e)
{
    applist_ui_data_t *data = (applist_ui_data_t *)e->user_data;
    lv_event_code_t code = lv_event_get_code(e);

    lv_coord_t scroll_y = lv_obj_get_scroll_y(data->cont);
    
    SYS_LOG_INF("------------------------------ code:%d",code);
    if (code == LV_EVENT_SCROLL_END)
    {
        int count = scroll_y/ITEM_HEIGHT;   // 已经经过了多少个图标
        lv_coord_t move_y = (count * ITEM_HEIGHT) + ITEM_HEIGHT; // 要移动的距离

        if (scroll_y % ITEM_HEIGHT != 0)
        {
            lv_obj_scroll_to_y(data->cont, move_y, LV_ANIM_ON);
        }
    }
}