lv_obj_align(list1, NULL, LV_ALIGN_IN_TOP_MID, -180, 0); //16.2 添加按钮到列表控件 lv_obj_t * list_btn; list_btn = lv_list_add_btn(list1, LV_SYMBOL_FILE, "New"); lv_obj_set_event_cb(list_btn, list_event_handler); list_btn = lv_list_add_btn(list1, LV_SYMBOL_DIRECTO...
lv_obj_add_flag(float_btn, LV_OBJ_FLAG_FLOATING); lv_obj_align(float_btn, LV_ALIGN_BOTTOM_RIGHT, 0, -lv_obj_get_style_pad_right(list, LV_PART_MAIN)); lv_obj_add_event_cb(float_btn, float_button_event_cb, LV_EVENT_ALL, list); lv_obj_set_style_radius(float_btn, LV_RADIUS_...
lv_obj_t *list_btn = lv_list_add_btn(list, LV_SYMBOL_OK, data_array[i].label); lv_obj_set_free_ptr(list_btn, &data_array[i]); } //排序数据 lv_list_sort(list, custom_data_compare); ``` 在这个例子中,我们首先定义了一个包含自定义数据的结构`CustomData`,然后创建了一个包含该结...
LVGL 的列表(list)表现形式更像大多数界面提供的标题栏菜单。这里先介绍列表仅仅是因为它比较简单。列表的核心函数只有 3 个: lv_obj_t*lv_list_create(lv_obj_t*parent);lv_obj_t*lv_list_add_text(lv_obj_t*list,constchar*txt);lv_obj_t*lv_list_add_btn(lv_obj_t*list,constvoid*icon,constcha...
lv_obj_add_event_cb(btn01, button_simple_cb, LV_EVENT_CLICKED, label01); 这里让按钮只对点击事件产生响应。如果要让按钮对多个事件响应的话,需要先让按钮对所有事件LV_EVENT_ALL产生响应的话,然后在回调函数内进一步判断事件类型: lv_event_code_tcode =lv_event_get_code(e);if(code == LV_EVENT_...
(btn,btn_event_cb,LV_EVENT_CLICKED,NULL);/*Assign a callback to the button*/lv_obj_t*label=lv_label_create(btn);/*Add a label to the button*/lv_label_set_text(label,"Button");/*Set the labels text*/lv_obj_center(label);/*Align the label to the center*/...voidbtn_event_...
something like: btn_close = list1.add(lv.SYMBOL.CLOSE, "Close", None) btn_close.set_event_cb(my_close_callback); How about requiring the user to always do it like this? just remove the callback parameter from the delegating function.Member...
(btn, btn_event_cb, LV_EVENT_CLICKED,NULL);/*Assign a callback to the button*/lv_obj_t* label = lv_label_create(btn);/*Add a label to the button*/lv_label_set_text(label,"Button");/*Set the labels text*/lv_obj_center(label);/*Align the label to the center*/...voidbtn_...
lv_obj_set_size(btn,120,50);/*设置按键大小*/ lv_obj_reset_style_list(btn, LV_BTN_PART_MAIN);/*移除默认主题中的风格*/ lv_obj_add_style(btn, LV_BTN_PART_MAIN,&style_btn); lv_obj_t*label=lv_label_create(btn,NULL);/*添加一个标签*/ ...
lv_obj_t* btn = lv_btn_create(lv_scr_act(),NULL);/*Add a button to the current screen*/lv_obj_set_pos(btn,10,10);/*Set its position*/lv_obj_set_size(btn,100,50);/*Set its size*/lv_obj_set_event_cb(btn, btn_event_cb);/*Assign a callback to the button*/lv_obj_t*...