Android：使用相机检测手机周围的亮度（光线量）吗？

在光传感器上注册侦听器的方法如下：

private final SensorManager mSensorManager;private final Sensor mLightSensor;private float mLightQuantity;public void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.main);    // Obtain references to the SensorManager and the Light Sensor    mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);    mLightSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);    // Implement a listener to receive updates    SensorEventListener listener = new SensorEventListener() {        @Override        public void onSensorChanged(SensorEvent event) { mLightQuantity = event.values[0];        }    }    // Register the listener with the light sensor -- choosing    // one of the SensorManager.SENSOR_DELAY_* constants.    mSensorManager.registerListener( listener, lightSensor, SensorManager.SENSOR_DELAY_UI);}

编辑： 感谢@AntiMatter的建议更新。

文件：

SensorEventListener

SensorManager

SensorEvent

Sensor