2012年8月14日

1.傳感器事件概念
2.為應用程序注冊傳感器
3.獲取傳感器的值和精度
public boolean registerListener (SensorEventListener listener,Sensor sensor,int rate)
樣例
package org.marsdroid.sensor()2;
import android.app.Activitity;

public class MainActivity extends Activity{
  //聲明一個SensorManager對象
  private SensorManager sensorManager;
  @Override
  public void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    //獲取SensorManager對象
    sensorManager=(SensorManager)getSystemService(Context.SESOR_SERVICE);
    //獲取光線傳感器對象
    Sensor lightSensor=sensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);
    //注冊傳感器
    sensorManager.registerListener(new SensorEventListener(){
      public void onSensorChanged(SensorEvent event){
        float acc=event.accuracy;
        float lux=event.values[0];
        System.out.println("acc---->"+acc);
        System.out.println("lux---->"+lux);
      }
      public void onAccuracyChanged(Sensor sensor,int accuracy){
      }
    },lightSensor,SensorManager.SENSOR_DELAY_NORMAL);
  }
}
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