package com.netfluke.sergey.proximity;

// Adopted from
//   http://androidbite.blogspot.com/2013/05/android-proximity-sensor-example.html

import android.os.Bundle;
import android.app.Activity;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.util.Log;
import android.widget.ImageView;

public class MainActivity extends Activity implements SensorEventListener {
    private SensorManager mSensorManager;
    private Sensor mSensor;
    ImageView iv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.screen);

        mSensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
        mSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY); // note warning!

        iv = findViewById(R.id.imageView1);
    }

    @Override
    protected void onResume() {
        super.onResume();
        mSensorManager.registerListener(this, mSensor,
                SensorManager.SENSOR_DELAY_NORMAL);
    }

    @Override
    protected void onPause() {
        super.onPause();
        mSensorManager.unregisterListener(this);
    }

    public void onAccuracyChanged(Sensor sensor, int accuracy) {
    }

    public void onSensorChanged(SensorEvent event) {
        Log.d("PROX", "Sensor value: " + event.values[0]);
        if (event.values[0] == 0) {
            iv.setImageResource(R.drawable.near);
        } else {
            iv.setImageResource(R.drawable.far);
        }
    }
}