代碼介紹:

主要知識點(diǎn)：

1/ 全屏(可以通過XML文件進(jìn)行描述，也可以通過代碼進(jìn)行控制)：
styel.XML：
[code]
<style name="style_Fullscreen">
  <item name="android:windowFullscreen">true</item>
  <item name="android:windowNoTitle">true</item>
</style>
[/code]
Java Code:
[code]
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
  WindowManager.LayoutParams.FLAG_FULLSCREEN);
[/code]
2/ 感應(yīng)器運(yùn)用

實(shí)現(xiàn)SensorListener接口
[code]
public class compass extends Activity implements SensorListener {
private SensorManager sm = null;
@Override
public void onStart() {
  Log.e(TAG, "Compass: onStart");
  sm = (SensorManager) getSystemService(SENSOR_SERVICE);
....
[/code]
接收事件消息
[code]
public void onSensorChanged(int sensor, float[] values) {
  synchronized (this) {
   if (sensor == SensorManager.SENSOR_ORIENTATION) {
    Log.d(TAG, "onSensorChanged: " + sensor + ", x: " + values[0]
      + ", y: " + values[1] + ", z: " + values[2]);
    //... 下面就是對方位數(shù)據(jù)的處理...
   }
}
}

public void onAccuracyChanged(int sensor, int accuracy) {
  Log.d(TAG, "onAccuracyChanged: " + sensor + ", accuracy: " + accuracy);
}
[/code]

3/ 動畫效果(JAVA Code實(shí)現(xiàn))

a.漸現(xiàn)漸隱
[code]
// 定義變量
private AlphaAnimation myAnimation_Alpha;
// 設(shè)置變量
  myAnimation_Alpha=new AlphaAnimation(1.0f, 0.1f);
  myAnimation_Alpha.setDuration(3000);
  myAnimation_Alpha.setAnimationListener(new Animation.AnimationListener() {
   @Override
   public void onAnimationStart(Animation animation) {
    // TODO Auto-generated method stub
   
   }
  
   @Override
   public void onAnimationRepeat(Animation animation) {
    // TODO Auto-generated method stub
   
   }
  
   @Override
   public void onAnimationEnd(Animation animation) {
    // TODO Auto-generated method stub
   }
  });
[/code]
b.旋轉(zhuǎn)效果/* 用于指南針羅盤旋轉(zhuǎn) */
[code]
// 定義變量
private RotateAnimation myAni = null;
// 設(shè)置變量
  myAni = new RotateAnimation(DegressQuondam, fDegress,
    Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
    0.5f);
  myAni.setDuration(300);
  myAni.setFillAfter(true);    /* 為實(shí)現(xiàn)指南針效果，設(shè)置旋轉(zhuǎn)后不還原原圖 */
  ImgCompass.startAnimation(myAni);
[/code]