how to bring NEXT every tick coming in?

[goldcar]

I modify the IBTEST sample as below:

class SmaCross(bt.Strategy):

    def __init__(self):
        self.beeapi = self.p.store.main_ctpbee_api
        self.beeapi.strategy = self
    def next(self):
        print('------------------------------------------ next start') #nothing print out here.
    def on_tick(self, tick) -> None:
        print(tick.datetime, tick.last_price) #nothing print out
        print("--------------------------------------------------------on tick in cat")
        pass

if __name__ == '__main__':
    with open('./params.json', 'r') as f:
        ctp_setting = json.load(f)
    cerebro = bt.Cerebro(live=True)
    store = CTPStore(ctp_setting, debug=True)
    data0_name = 'ag2212.SHFE'
    compression = 2
    data0 = store.getdata(dataname=data0_name,
                          timeframe=bt.TimeFrame.Ticks,
                          )
    cerebro.resampledata(data0,
                         timeframe=bt.TimeFrame.Seconds,
                         compression=compression
                         )

    cerebro.addstrategy(SmaCross, store=store)
    cerebro.run()

and some of the store part as below:

class MyCtpbeeApi(CtpbeeApi):
    def __init__(self, name, md_queue=None):
        super().__init__(name)
        self.md_queue = md_queue 
        self.is_position_ok = False
        self.is_account_ok = False
    def on_tick(self, tick: TickData) -> None:
        print(tick.datetime, tick)  #it prints out the incoming datas
        pass
    def on_bar(self, bar: BarData) -> None:
        print("on bar coming") # it works here
        self.md_queue[bar.local_symbol].put(bar)
    def on_init(self, init):
        pass

class MetaSingleton(MetaParams):
    """Metaclass to make a metaclassed class a singleton"""

    def __init__(cls, name, bases, dct):
        super(MetaSingleton, cls).__init__(name, bases, dct)
        cls._singleton = None

    def __call__(cls, *args, **kwargs):
        if cls._singleton is None:
            cls._singleton = super(MetaSingleton, cls).__call__(*args, **kwargs)
        return cls._singleton


class CTPStore(with_metaclass(MetaSingleton, object)):
    BrokerCls = None  #broker class will auto register
    DataCls = None    #data class will auto register
    @classmethod
    def getdata(cls, *args, **kwargs):
        """Returns `DataCls` with args, kwargs"""
        return cls.DataCls(*args, **kwargs)

    @classmethod
    def getbroker(cls, *args, **kwargs):
        """Returns broker with *args, **kwargs from registered `BrokerCls`"""
        return cls.BrokerCls(*args, **kwargs)

    def __init__(self, ctp_setting, *args, **kwargs):
        super(CTPStore, self).__init__()
        self.ctp_setting = ctp_setting
        self._cash = 0.0
        self._value = 0.0
        self.q_feed_qlive = dict()
        self.main_ctpbee_api = MyCtpbeeApi("main_ctpbee_api", md_queue=self.q_feed_qlive)
        self.app = CtpBee("ctpstore", __name__, refresh=True)
        self.app.config.from_mapping(ctp_setting)
        self.app.add_extension(self.main_ctpbee_api)
        self.app.start(log_output=True)
        while True:
            sleep(1)
            if self.main_ctpbee_api.is_account_ok:
                break
        print('positions===>', self.main_ctpbee_api.center.positions)
        print('account===>', self.main_ctpbee_api.center.account)

Both has "on tick", but only the one in store class can print out incoming tick datas. in stragecy class ,it doesn't print out the tick data. And, it store class's ON_BAR, it print out bar data no problem, but there is no action in "NEXT" of stragecy class.

I am new in Python, dont know how to fix it. any help? appreciated!