View difference between Paste ID: XKTLx3pZ and j7F0ncrR

 package com.example.teacher.mysensors;
 
 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.util.Log;
 import android.widget.Toast;
 
 public class MainActivity extends AppCompatActivity {
 
     //full information for sensor
     //https://guides.codepath.com/android/Listening-to-Sensors-using-SensorManager#sensors-in-the-background
 
     //TAG for log
     final static String TAG="Sensor";
     //Sensor Managar to handle our all sensors
     private SensorManager sensorManager;
     //define sensor for light
     private Sensor flashLight;
 
     //create event listener to show when event that related to sensor has קרה
     private SensorEventListener sensorEventListener = new SensorEventListener() {
         @Override
         public void onSensorChanged(SensorEvent sensorEvent) {
             Toast.makeText(MainActivity.this, "onSensorChange:"+ sensorEvent.toString(), Toast.LENGTH_LONG).show();
             Log.e(TAG, "onSensorChanged: "+sensorEvent.toString());
         }
 
         @Override
         public void onAccuracyChanged(Sensor sensor, int i) {
             Toast.makeText(MainActivity.this, "OnAccuracy changed:"+sensor.toString(), Toast.LENGTH_SHORT).show();
             Log.e(TAG, "onAccuracyChanged: "+sensor.toString() );
         }
     };
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         sensorManager=(SensorManager)getSystemService(Context.SENSOR_SERVICE);
         //get the defualt sensor of specific type
         flashLight=sensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);
     }
 
     @Override
     protected void onPostResume() {
         super.onPostResume();
         if (flashLight!=null)
         {
             sensorManager.registerListener(sensorEventListener,flashLight,SensorManager.SENSOR_DELAY_NORMAL);
         }
     }
 
     @Override
     protected void onPause() {
         if (flashLight!=null)
         {
             sensorManager.unregisterListener(sensorEventListener);
         }
         super.onPause();
     }
 }