Android指南针小程序源代码

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
SensorEventListener {
SurfaceHolder mholder;
Bitmap background1;
SensorManager sensorManager;
Sensor orieSensor;
int screenWidth =0;
int screenHeight =0;
super.onStop();
}
}
----------------------CompassView.java-----------------------------------
package widebright.tool;
import android.content.Context;
//return super.onOptionsItemSelected(item);
switch (item.getItemId()) {
//case MENU_NEW_GAME:
// newGame();
// return true;
case MENU_QUIT:
sensorManager.unregisterListener(this);
}
// class PaintThread extends Thread{
// public void run() {
//
// }
// }
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
// TODO Auto-generated method stub
super.onRestart();
}
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
}
finish();
return true;
}
return false;
}
//
//activity的卸载点，不要在这里保存东西，调用了finish()之后会来到这里
//
@Override
protected void onDestroy() {
super.onDestroy();
Android指南针小程序源代码 -----------------Compass.java-------------------------------
package widebright.tool;
import android.app.Activity;
import android.content.pm.ActivityInfo;
//myLocationManager=(LocationManager)getSystemService(Context.LOCATION_SERVICE);
//Location l = myLocationManager.getLastKnownLocation("network");
//String url = l.getLatitude() + "," + l.getLongitude(); 这里获取到了精度和维度
public class Compass extends Activity {
final static int MENU_QUIT = 1;
CompassView view;
/** Called when the activity is first created. */
@Override
Display display = windowManager.getDefaultDisplay();
int screenWidth = display.getWidth();
int screenHeight = display.getHeight();
//LocationManager myLocationManager=null;
return true;
}
/* (non-Javadoc)
* @see android.app.Activity#onOptionsItemSelected(android.view.MenuItem)
*/
@Override
public boolean onOptionsItemSelected(MenuItem item) {
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
public class CompassView extends SurfaceView implements SurfaceHolder.Callback,
// thread.start();
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
synchronized (LOCK) {
mholder = null;
}
}
public void removeSensorListener() {
import android.os.Bundle;
import android.view.Display;
import android.view.Menu;
import android.view.MenuItem;
import android.view.Window;
import android.view.WindowManager;
view = new CompassView(this,screenWidth,screenHeight);
setContentView(view);
}
/* (non-Javadoc)
* @see android.app.Activity#onCreateOptionsMenu(android.view.Menu)
@Override
protected void onStart() {
// TODO Auto-generated method stub
super.onStart();
}
@Override
protected void onStop() {
// TODO Auto-generated method stupublic boolean onCreateOptionsMenu(Menu menu) {
//return super.onCreateOptionsMenu(menu);
//menu.add(0, MENU_NEW_GAME, 0, "New Game");
menu.add(0, MENU_QUIT, 0, "退出");
float degree = 0;
private static final Object LOCK = new Object();
public CompassView(Context context, int screenWidth, int screenHeight) {
super(context);
if (orieSensor != null) {
sensorManager.registerListener(this, orieSensor,
SensorManager.SENSOR_DELAY_NORMAL);
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
view.removeSensorListener();
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
}
@Override
protected void onRestart() {
background1 = BitmapFactory.decodeResource(this.getResources(),
R.drawable.back1);
getHolder().addCallback(this);
this.screenWidth = screenWidth; // this.getWidth();
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
this.getWindow().addFlags(youtParams.FLAG_FULLSCREEN);
WindowManager windowManager = getWindowManager();