长按按钮

我如何实现一个长按按钮事件?

我目前有以下和来自arduino环境，我通常使用millis()来计时按钮按下。

Static void user_app_button_press_cb(void) {uint8_t next_btn_event = 0;//读取按钮状态if(GPIO_GetPinStatus(GPIO_BUTTON_PORT, GPIO_BUTTON_PIN)) {app_sleep_env. txt . txt;custs1_btn_state = CUSTS1_BTN_STATE_RELEASED;next_btn_event = WKUPCT_PIN_POLARITY_LOW;} else {app_sleep_env. conf;custs1_btn_state = CUSTS1_BTN_STATE_PRESSED;next_btn_event = WKUPCT_PIN_POLARITY_HIGH;} //更新按钮特征结构custs1_val_ntf_ind_req *req = KE_MSG_ALLOC_DYN(CUSTS1_VAL_NTF_REQ, prf_get_task_from_id(TASK_ID_CUSTS1)， TASK_APP, custs1_val_ntf_ind_req, DEF_SVC1_BUTTON_STATE_CHAR_LEN);申请- > conidx = app_env - > conidx;申请- >通知= true;申请- >处理= SVC1_IDX_BUTTON_STATE_VAL; req->length = DEF_SVC1_BUTTON_STATE_CHAR_LEN; req->value[0] = app_sleep_env.custs1_btn_state; ke_msg_send(req); // Configure next button event user_app_set_button_event(next_btn_event); }