Android指南针程序安卓APP开发源代码

代码介绍:主要知识点：1/ 全屏(可以通过XML文件进行描述，也可以通过代码进行控制)：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/ 感应器运用实现SensorListener接口[code]public class compass extends Activity implements SensorListener {private SensorManager sm = null;@Overridepublic 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]); //... 下面就是对方位数据的处理... }}}public void onAccuracyChanged(int sensor, int accuracy) { Log.d(TAG, "onAccuracyChanged: " + sensor + ", accuracy: " + accuracy);}[/code]3/ 动画效果(JAVA Code实现)a.渐现渐隐[code]// 定义变量private AlphaAnimation myAnimation_Alpha;// 设置变量 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.旋转效果/* 用于指南针罗盘旋转 */[code]// 定义变量private RotateAnimation myAni = null;// 设置变量 myAni = new RotateAnimation(DegressQuondam, fDegress, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); myAni.setDuration(300); myAni.setFillAfter(true); /* 为实现指南针效果，设置旋转后不还原原图 */ ImgCompass.startAnimation(myAni);[/code]