Android监听距离传感器

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Android监听距离传感器

//在activity或service等创建时定义注册监听器
private SensorManager mSensorMgr;
private Sensor mGnPSensor;//获取传感器管理类及距离传感器
mSensorMgr = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE);
mGnPSensor = mSensorMgr.getDefaultSensor(Sensor.TYPE_PROXIMITY);//在传感器管理类中注册距离传感器的监听器
mSensorMgr.registerListener(mGnPSensorEventListener, mGnPSensor, 12000);//定义监听器        
private final SensorEventListener mGnPSensorEventListener = new SensorEventListener() {@Overridepublic void onSensorChanged(SensorEvent event) {if (event.sensor.getType() == Sensor.TYPE_PROXIMITY) {swithcGnPSensorTag(event);}}@Overridepublic void onAccuracyChanged(Sensor sensor, int accuracy) {}};private void swithcGnPSensorTag(SensorEvent event) {//event.values[0]为0，表示靠近，否则是远离if (event.values[0] != 0) {mGnPSensorTag = true;} else {mGnPSensorTag = false;}
}//最后记得在activity或service等销毁时注销监听器
mSensorMgr.unregisterListener(mGnPSensorEventListener);