Android传感器使用

package com.king.android.speical;

import java.util.List;

import android.app.Activity;

import android.hardware.Sensor;

import android.hardware.SensorEvent;

import android.hardware.SensorEventListener;

import android.hardware.SensorManager;

import android.os.Bundle;

import com.king.android.R;

/**

 * 描述：传感器

 * 作者：Andy.Liu

 * 时间： 2012-7-16  上午07:22:19

 **/

public class SensorActivity extends Activity implements SensorEventListener {

private boolean mRegisterSensor = false;

private SensorManager mSensorManager;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

mSensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);

}

@Override

protected void onResume() {

super.onResume();

List<Sensor> sensors = mSensorManager.getSensorList(Sensor.TYPE_ORIENTATION);

if(sensors.size()>0){

Sensor sensor = sensors.get(0);

//注册Sensor ,接收频率。

mRegisterSensor = mSensorManager.registerListener(this, sensor, SensorManager.SENSOR_DELAY_FASTEST);

}

}

@Override

protected void onPause() {

if(mRegisterSensor){

mSensorManager.unregisterListener(this);

mRegisterSensor = false;

}

super.onPause();

}

//当精确值发生改变时、

//Accuracy精确值

@Override

public void onAccuracyChanged(Sensor sensor, int accuracy) {

//处理精确值改变

}

@Override

public void onSensorChanged(SensorEvent event) {

if(event.sensor.getType()==Sensor.TYPE_ORIENTATION){

float x = event.values[SensorManager.DATA_X];

float y = event.values[SensorManager.DATA_Y];

float z = event.values[SensorManager.DATA_Z];

}

}

}

/**

 SensorManager中的其它方法

 getDefaultSensor:得到默认的传感器对象

 getInclination:得到地磁传感器倾斜的弧度值

 getOrientation:得到设备的旋转方向

 getSensorList:得到指定传感器列表。

**/