MainActivity.java Source code

Introduction

Here is the source code for MainActivity.java

Source

import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

import org.w3c.dom.Text;

public class MainActivity extends AppCompatActivity {

    private SensorManager mSensorManager;
    private Sensor mSensor;
    private TextView mTextView;

    private SensorEventListener mSensorListener = new SensorEventListener() {
        @Override
        public void onSensorChanged(SensorEvent event) {
            mTextView.setText(String.valueOf(event.values[0]));
        }

        @Override
        public void onAccuracyChanged(Sensor sensor, int accuracy) {
            //Nothing to do
        }
    };

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

        mTextView = (TextView) findViewById(R.id.textView);
        mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
        mSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);
    }

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

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

}