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1 import android.app.Activity; 2 import android.content.Context; 3 import android.hardware.Sensor; 4 import android.hardware.SensorEvent; 5 import android.hardware.SensorEventListener; 6 import android.hardware.SensorManager; 7 import android.os.Bundle; 8  9 public class MainActivity extends Activity {10 11     private SensorManager sensorManager;12     @Override13     public void onCreate(Bundle savedInstanceState) {14         super.onCreate(savedInstanceState);15         setContentView(R.layout.activity_main);16         17         sensorManager = (SensorManager)getSystemService(Context.SENSOR_SERVICE);18         Sensor lightSensor = (Sensor)sensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);19         20         sensorManager.registerListener(new SensorEventListener() {21             22             public void onSensorChanged(SensorEvent event) {23                 String sensorName = event.sensor.getName();24                 String sensorVendor = event.sensor.getVendor();25                 float resolution = event.sensor.getResolution();26                 float power = event.sensor.getPower();27                 double timestamp = event.timestamp;28                 29                 System.out.println("sensor name--->" + sensorName);30                 System.out.println("sensor vendor--->" + sensorVendor);31                 System.out.println("sensor resolution--->" + resolution);32                 System.out.println("sensor power--->" + power);33                 System.out.println("timestamp--->" + timestamp);34                 35             }36             37             public void onAccuracyChanged(Sensor sensor, int accuracy) {38             }39         }, lightSensor, SensorManager.SENSOR_DELAY_GAME);40     }41 }