<span style="font-size:12px;">package com.example.sensortest; 
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 android.util.Log; 
import android.view.Menu; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.TextView; 
public class SensorTest extends Activity implements SensorEventListener{ 


private SensorManager sensorManager = null; 
private Sensor gyroSensor = null; 
private TextView vX; 
private TextView vY; 
private TextView vZ; 
private TextView v; 
private Button button; 
private static final float NS2S = 1.0f / 1000000000.0f; 
private float timestamp; 
private float[] angle = new float[3]; 
@SuppressWarnings("deprecation") 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
setContentView(R.layout.activity_sensor_test); 
vX = (TextView) findViewById(R.id.vx); 
vY = (TextView)findViewById(R.id.vy); 
vZ = (TextView)findViewById(R.id.vz); 
v = (TextView)findViewById(R.id.v); 
button = (Button)findViewById(R.id.button); 
sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE); 
gyroSensor = sensorManager 
.getDefaultSensor(Sensor.TYPE_ORIENTATION); 
vX.setText("!!!!!!"); 
button.setOnClickListener(new OnClickListener() { 


@Override 
public void onClick(View arg0) { 
// TODO Auto-generated method stub 
//宣告可變字串 
StringBuffer sb = new StringBuffer(); 
//獲取手機全部的感測器 
List<Sensor> sensors = sensorManager.getSensorList(Sensor.TYPE_ALL); 
//迭代輸出獲得上的感測器 
for (Sensor sensor : sensors) { 
//System.out.println(sensor.getName().toString()); 
sb.append(sensor.getName().toString()); 
sb.append("\n"); 
Log.i("Sensor", sensor.getName().toString()); 
} 
//給文字控制元件賦值 
v.setText(sb.toString()); 
} 
}); 
} 
public SensorTest() { 
// TODO Auto-generated constructor stub 
angle[0] = 0; 
angle[1] = 0; 
angle[2] = 0; 
timestamp = 0; 
} 


@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
// Inflate the menu; this adds items to the action bar if it is present. 
getMenuInflater().inflate(R.menu.activity_sensor_test, menu); 
return true; 
} 
@Override 
protected void onPause() { 
// TODO Auto-generated method stub 
super.onPause(); 
sensorManager.unregisterListener(this); // 解除監聽器註冊 
} 
@Override 
protected void onResume() { 
// TODO Auto-generated method stub 
super.onResume(); 
sensorManager.registerListener(this, gyroSensor, 
SensorManager.SENSOR_DELAY_NORMAL); //為感測器註冊監聽器 
} 
@Override 
public void onAccuracyChanged(Sensor sensor, int accuracy) { 
// TODO Auto-generated method stub 


} 
@Override 
public void onSensorChanged(SensorEvent event) { 
// TODO Auto-generated method stub 
// if (event.accuracy == SensorManager.SENSOR_STATUS_UNRELIABLE) 
// { 
// return; 
// } 


// if (timestamp != 0) { 
// final float dT = (event.timestamp - timestamp) * NS2S; 
// angle[0] += event.values[0] * dT * 100; 
// angle[1] += event.values[1] * dT * 100; 
// angle[2] += event.values[2] * dT * 100; 
// } 
// timestamp = event.timestamp; 
// 
// 
// vX.setText("X: " + Float.toString(angle[0])); 
// vY.setText("Y: " + Float.toString(angle[1])); 
// vZ.setText("Z: " + Float.toString(angle[2])); 


// 方向感測器提供三個資料，分別為azimuth、pitch和roll。 
// 
// azimuth：方位，返回水平時磁北極和Y軸的夾角，範圍為0°至360°。 
// 0°=北，90°=東，180°=南，270°=西。 
// 
// pitch：x軸和水平面的夾角，範圍為-180°至180°。 
// 當z軸向y軸轉動時，角度為正值。 
// 
// roll：y軸和水平面的夾角，由於歷史原因，範圍為-90°至90°。 
// 當x軸向z軸移動時，角度為正值。 


vX.setText("Orientation X: " + event.values[0]); 
vY.setText("Orientation Y: " + event.values[1]); 
vZ.setText("Orientation Z: " + event.values[2]); 


} 
} 
</span>
 

<span style="font-size:12px;"><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
tools:context=".SensorTest" 
android:orientation="vertical" 
> 
<Button 
android:id="@+id/button" 
android:layout_width="wrap_content" 
android:layout_height="wrap_content" 
android:text="獲取感測器" 
/> 
<TextView 
android:layout_width="wrap_content" 
android:layout_height="wrap_content" 
android:id="@+id/v" 
android:textSize="30px" 
></TextView> 
<TextView 
android:layout_width="wrap_content" 
android:layout_height="wrap_content" 
android:id="@+id/vx" 
android:textSize="50px" 
/> 
<TextView 
android:layout_width="wrap_content" 
android:layout_height="wrap_content" 
android:id="@+id/vy" 
android:textSize="50px" 
/> 
<TextView 
android:layout_width="wrap_content" 
android:layout_height="wrap_content" 
android:id="@+id/vz" 
android:textSize="50px" 
/> 
</LinearLayout> </span>