我有步进计数传感器的代码，但我在我的设备上运行此代码，它不工作

override fun init_events() {

sensoreManager=getSystemService(Context.SENSOR_SERVICE) as SensorManager
        if(sensoreManager!!.getDefaultSensor(Sensor.TYPE_STEP_COUNTER)!=null)
        {
            sensor=sensoreManager!!.getDefaultSensor(Sensor.TYPE_STEP_COUNTER)
            running=true
            showToastMessage("yes")
        }else{
           showToastMessage("no")
            running=false
        }

}

override fun onAccuracyChanged(sensor: Sensor?, accuracy: Int) {
        Log.i("TEST_TEST","ssssssssssss")
    }

@SuppressLint("SetTextI18n")
    override fun onSensorChanged(event: SensorEvent?) {
        Log.i("TEST_TEST","ssssssssssss")
        if(event!!.sensor==sensor)
            showToastMessage("movment")
    }
    override fun onResume() {
        Log.i("TEST_TEST","f RESume")
        super.onResume()
        if(sensoreManager!!.getDefaultSensor(Sensor.TYPE_STEP_COUNTER)!=null){
            sensoreManager!!.registerListener(this,sensor,SensorManager.SENSOR_DELAY_FASTEST)
            Log.i("TEST_TEST","not null")}
        else{
            Log.i("TEST_TEST","null")
        }
    }
    override fun onPause() {
        Log.i("TEST_TEST","f onPause")
        super.onPause()
        if(sensoreManager!!.getDefaultSensor(Sensor.TYPE_STEP_COUNTER)!=null)
           sensoreManager!!.unregisterListener(this,sensor)
    }

这个代码有什么问题我的小米Note9Pro