Pfthb

I need to count user step in my game to move player character.
My player should move while someone is walking, but after I use System.out.print on numstep its still zero.
How can i count my step in Java and the LibGDX Framework?

 public class PlayerBros extends Game 

 public int step=0;
 
 public class AndroidLauncher extends AndroidApplication implements SensorEventListener,StepListener 

 sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
 accel = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
 simpleStepDetector = new StepDetector();
 simpleStepDetector.registerListener(this);

 sensorManager.registerListener(AndroidLauncher.this, accel, SensorManager.SENSOR_DELAY_FASTEST);
 config = new AndroidApplicationConfiguration();
 playerBros=new PlayerBros();
 numSteps = playerBros.step;
 initialize(playerBros, config);
 

 @Override
 public void onAccuracyChanged(Sensor sensor, int accuracy) 
 

 @Override
 public void onSensorChanged(SensorEvent event) 
 if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) 
 simpleStepDetector.updateAccel(
 event.timestamp, event.values[0], event.values[1], event.values[2]);
 System.out.print("AndroidLauncher: "+numSteps);
 
 

 @Override
 public void step(long timeNs) 
 numSteps++;

 

 }
 public class PlayScreen implements Screen 
 private PlayerBros game;

 public void handleInput(float dt)
 player.b2body.applyLinearImpulse(new Vector2(game.step,y), player.b2body.getWorldCenter(), true);
 hud.marioLabel.setText(" "+game.step);
 System.out.print("PlayScreen: "+game.step);

 
 public void update(float dt)
 handleInput(dt);