ProximitySensor.java

package com.notificationFramework.stimulusStrategy;

import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.IBinder;
import android.support.annotation.Nullable;

/**
 * Created by pharmacy on 26/06/2018.
 */

public class ProximitySensor extends Service implements SensorEventListener {


    static float proximity;

    /**
     * The method which is called when the ProximitySensor service is started. Sets up the listener to
     * be registered which remains constantly registered.
     *
     * @param intent  the intent used to start this service
     * @param flags   additional information about this service
     * @param startId the unique identifier for this service
     * @return the conditions under which the OS should treat this service
     * @see android.app.Service
     */
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        SensorManager mSensorManager =
                (SensorManager) this.getSystemService(Context.SENSOR_SERVICE);
        Sensor proximity = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
        mSensorManager.registerListener(this, proximity, 600000000);
        return START_STICKY;
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    /**
     * Changes the field values when a the proximity sensor reports a change.
     *
     * @param event the sensor event which occurred
     */
    @Override
    public void onSensorChanged(SensorEvent event) {
        proximity = event.values[0];
    }

    @Override
    public void onAccuracyChanged(Sensor sensor, int i) {

    }
}