How to skip the initial delay of onsensorchanged being called when counting steps?

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Android

sensors

I have written this code to count the number of steps implementing the SensorListener class. But the problem is that onSensorChanged method is called after certain number of steps. It seems that it has to verify that these calls are as a result of walking and not phone shake. But I need to skip this delay and start counting steps as soon as the user starts walking. How can I achieve this? Any help would be much appreciated.

What I have tried:

I tried adjusting the delay parameter of SensorManager's registerListener method but that doesn't work. It makes sense as that is for the frequency of sensor readings while my problem is the initial delay.