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_...
LV_EVENT_DRAW_POST_END, /**< Finishing the post draw phase (when all children are drawn)*/ LV_EVENT_DRAW_PART_BEGIN, /**< Starting to draw a part. The event parameter is `lv_obj_draw_dsc_t *`. */ LV_EVENT_DRAW_PART_END, /**< Finishing to draw a part. The event parameter...
timer_meter_speed =lv_timer_create(timer_meter_speed_cb,100, &guider_ui); }break;caseLV_EVENT_SCREEN_UNLOADED: {lv_timer_del(timer_meter_speed); }break;default:break; } }voidevents_init_screen(lv_ui *ui){lv_obj_add_event_cb(ui- >screen, screen_event_handler, LV_EVENT_ALL, ui);...
label事件,按下打印 //添加事件lv_obj_add_event_cb(label,Www,LV_EVENT_ALL,NULL);//配置宏触发lv_obj_add_flag(label,LV_OBJ_FLAG_CLICKABLE); 回调函数是www,需要先写好,下面列出回调函数详细 staticvoidWww(lv_event_t*e){lv_obj_t*obj=lv_event_get_target(e);// 获取触发事件的部件(对象)lv_...
LV_EVENT_READY: OK按钮被点击 LV_EVENT_CANCEL:关闭按钮被点击 三、程序 #include"lvgl/lvgl.h" /** * @brief 文本事件 * @param e 事件对象 */ staticvoidta_event_cb(lv_event_t* e) { lv_event_code_tcode = lv_event_get_code(e);// 获取事件编码 ...
_INDICATOR | LV_STATE_DEFAULT); lv_obj_set_style_bg_opa(ui_UpdateProgress, 255, LV_PART_INDICATOR | LV_STATE_DEFAULT); lv_obj_add_event_cb(ui_CalibrateStart, ui_event_CalibrateStart, LV_EVENT_ALL, NULL); lv_obj_add_event_cb(ui_UpdateProgress, ui_event_UpdateProgress, LV_EVENT_ALL, ...
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It is mentioned thatLV_EVENT_CHILD_CREATEDandLV_EVENT_CHILD_DELETEDare bubbling up to all parents - I assumeLV_EVENT_CHILD_CHANGEDdoes not. IfLV_EVENT_CHILD_CHANGEDis the final indicator that an object was deleted and we don't bubble it up, does that impact the behavior of the parents ...
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