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 ; }

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