add a steplistener ; concode_field_sep float mLastDirections[] concode_elem_sep List<StepListener> mStepListeners concode_elem_sep float mLastExtremes[][] concode_elem_sep int mLastMatch concode_elem_sep int mLimit concode_elem_sep float mLastValues[] concode_elem_sep float mYOffset concode_elem_sep float mScale[] concode_elem_sep float mLastDiff[] concode_elem_sep StepDetector instance concode_elem_sep boolean detecting concode_field_sep void setSensitivity concode_elem_sep void onSensorChanged concode_elem_sep void removeStepListener concode_elem_sep void detectStep concode_elem_sep StepDetector getInstance concode_elem_sep void onAccuracyChanged
void function ( StepListener arg0 ) { if ( ! mStepListeners . contains ( arg0 ) ) mStepListeners . add ( arg0 ) ; }