How to use a Sensor of "TYPE_STEP_DETECTOR"

A sensor of this type triggers an event each time a step is taken by the user.

http://developer.android.com/reference/android/hardware/Sensor.html#TYPE_STEP_DETECTOR

Initialize Sensor

We have to get a Sensor's Object from SensorManager.
Set the type "Sensor.TYPE_STEP_DETECTOR".

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public class StepCounterActivity extends Activity {     private SensorManager mSensorManager;     private Sensor mStepSensor;     private TextView mTextView;       @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);           mTextView = (TextView) findViewById(R.id.text_step);           mSensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);         mStepSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_STEP_DETECTOR);       }       protected void onResume() {         super.onResume();         mSensorManager.registerListener(mSensorEventListener, mStepSensor,                 SensorManager.SENSOR_DELAY_NORMAL);     }       protected void onPause() {         super.onPause();         mSensorManager.unregisterListener(mSensorEventListener);     }

Create a SensorListener

We can get a trigger from onSensorChanged.

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private SensorEventListener mSensorEventListener = new SensorEventListener() {     private int mStep;       @Override     public void onAccuracyChanged(Sensor sensor, int accuracy) {       }       @Override     public void onSensorChanged(SensorEvent event) {         if (event.values[0] == 1.0f) {             mStep++;         }         mTextView.setText(Integer.toString(mStep));     } };