Android传感器之姿态传感器

package com.example.attitude_sensor;

import android.hardware.Sensor;

import android.hardware.SensorEvent;

import android.hardware.SensorEventListener;

import android.hardware.SensorManager;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.app.Activity;

import android.view.Menu;

import android.widget.TextView;

import android.widget.Toast;

/**

* 姿态传感器

*

* @author pengxiaolong

*

*/

public class MainActivity extends Activity {

       

         SensorManager sensorManager;//管理器对象

       

         Sensor accSensor;//传感器对象

       

         TextView tv_X;

       

         TextView tv_Y;

       

         TextView tv_Z;

       

         TextView tv_info;

       

       

        @Override

        protected void onCreate(Bundle savedInstanceState) {

                super.onCreate(savedInstanceState);

                setContentView(R.layout.main);

                View_init();

                projectinit();

        }

        @Override

        public boolean onCreateOptionsMenu(Menu menu) {

                // Inflate the menu; this adds items to the action bar if it is present.

                getMenuInflater().inflate(R.menu.main, menu);

                return true;

        }

       

       

        /**

         * 对象的初始化

         */

        private void projectinit(){

               

                sensorManager=(SensorManager) getSystemService(SENSOR_SERVICE);

                accSensor=sensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION);

                if(accSensor==null){

                        Toast.makeText(this, "您的设备不支持该功能！", 0).show();

                }else{

                String str="\n名字："+accSensor.getName()+"\n电池："+accSensor.getPower()+"\n类型："+accSensor.getType()+"\nVendor:"+accSensor.getVendor()+"\n版本："+accSensor.getVersion()+"\n幅度："+accSensor.getMaximumRange();

           

                tv_info.setText(str);

                }

               

                /**

                 * 注册监听器

                 */

                sensorManager.registerListener(sensoreventlistener, accSensor, SensorManager.SENSOR_DELAY_NORMAL);

        }

       

        /**

         * 小组件的初始化

         */

        private void View_init(){

               

                tv_info=(TextView) this.findViewById(R.id.info);

                tv_X=(TextView) this.findViewById(R.id.tvX);

                tv_Y=(TextView) this.findViewById(R.id.tvY);

                tv_Z=(TextView) this.findViewById(R.id.tvZ);

               

        }

   

       

        @Override

        protected void onDestroy() {

                // TODO Auto-generated method stub

                super.onDestroy();

                /**

                 * 解除注册

                 */

                sensorManager.unregisterListener(sensoreventlistener);

        }

        private Handler handler=new Handler(){

                @Override

                public void handleMessage(Message msg) {

                        // TODO Auto-generated method stub

                       

                        switch(msg.what){

                       

                        case CHANGE:

                               

                                float[] valuse=(float[]) msg.obj;

                       

                                tv_X.setText("手机沿Yaw轴转过的角度为："+Float.toString(valuse[0]));

                                tv_Y.setText("手机沿Pitch轴转过的角度为："+Float.toString(valuse[1]));

                                tv_Z.setText("手机沿Roll轴转过的角度为："+Float.toString(valuse[2]));

                                break;

                        }

                        super.handleMessage(msg);

                }

               

               

               

        };

        /**

         * 传感器的监听

         */

        private SensorEventListener sensoreventlistener=new SensorEventListener() {

               

                @Override

                public void onSensorChanged(SensorEvent event) {

                        // TODO Auto-generated method stub

                       

                        float[] valuse=event.values;

                        Message message=new Message();

                        message.obj=valuse;

                        message.what=CHANGE;

                        handler.sendMessage(message);

               

                }

               

                @Override

                public void onAccuracyChanged(Sensor sensor, int accuracy) {

                        // TODO Auto-generated method stub

                       

                       

                }

        };

       

        private static final byte CHANGE=0x1;

}