获取传感器的属性

1.传感器的采样率 

1 SENSOR_DELAY_NORMAL(200000微秒)
2 SENSOR_DELAY_UI(60000微秒)
3 SENSOR_DELAY_GAME(20000微秒)
4 SENSOR_DELAY_FASTEST(0)微秒

设置传感器的原则：

尽量使用比较低的传感器采样率，这样系统的负荷比较小，同时可以省电

2.传感器的属性

1）传感器的名称

2）传感器制造商

3）传感器gonglv

4）传感器的resulotion;
MainActivity:  1   package  org.gaolei.sensor03;

 2 
 3  import android.app.Activity;
 4  import android.content.Context;
 5  import android.hardware.Sensor;
 6  import android.hardware.SensorEvent;
 7  import android.hardware.SensorEventListener;
 8  import android.hardware.SensorManager;
 9  import android.os.Bundle;
10 
11  public  class MainActivity  extends Activity {
12      private SensorManager sensorManager;
13 
14     @Override
15      public  void onCreate(Bundle savedInstanceState) {
16          super.onCreate(savedInstanceState);
17         setContentView(R.layout.main);
18 
19         sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
20         Sensor lightSensor = sensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);
21 
22         sensorManager.registerListener( new SensorEventListener() {
23 
24             @Override
25              public  void onSensorChanged(SensorEvent event) {
26                 String sensorName = event.sensor.getName();
27                 String sensorVendor = event.sensor.getVendor();
28                  float resolution = event.sensor.getResolution();
29                  float power = event.sensor.getPower();
30                  double timestamp = event.timestamp;
31 
32                 System.out.println("sensor name--->" + sensorName);
33                 System.out.println("sensor vendor--->" + sensorVendor);
34                 System.out.println("sensor resolution--->" + resolution);
35                 System.out.println("sensor power--->" + power);
36                 System.out.println("sensor timestamp--->" + timestamp);
37 
38             }
39 
40             @Override
41              public  void onAccuracyChanged(Sensor sensor,  int accuracy) {
42             }
43         }, lightSensor, SensorManager.SENSOR_DELAY_GAME);
44     }
45 }