import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
public class MyService extends Service {
　　@Override
　　public void onCreate() {
　　　　super.onCreate();
　　　　// TODO: Actions to perform when service is created.
　　}
　　@Override
　　public IBinder onBind(Intent intent) {
　　　　// TODO: Replace with service binding implementation.
　　　　return null;
　　}
}

<service android:enabled=”true” android:name=”.MyService” android:permission=”com.paad.MY_SERVICE_PERMISSION”/>

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
　　startBackgroundTask(intent, startId);
　　return Service.START_STICKY;
}

private void explicitStart() {
　　// Explicitly start My Service
　　Intent intent = new Intent(this, MyService.class);
　　// TODO Add extras if required.
　　startService(intent);
}
private void implicitStart() {
　　// Implicitly start a music Service
　　Intent intent = new Intent(MyMusicService.PLAY_ALBUM);
　　intent.putExtra(MyMusicService.ALBUM_NAME_EXTRA, “United”);
　　intent.putExtra(MyMusicService.ARTIST_NAME_EXTRA, “Pheonix”);
　　startService(intent);
}

// Stop a service explicitly.
stopService(new Intent(this, MyService.class));
// Stop a service implicitly.
Intent intent = new Intent(MyMusicService.PLAY_ALBUM);
stopService(intent);

@Override
public IBinder onBind(Intent intent) {
　　return binder;
}
public class MyBinder extends Binder {
　　MyMusicService getService() {
　　　　return MyMusicService.this;
　　}
}
private final IBinder binder = new MyBinder();

// Reference to the service
private MyMusicService serviceRef;
// Handles the connection between the service and activity
private ServiceConnection mConnection = new ServiceConnection() {
　　　　public void onServiceConnected(ComponentName className, IBinder service) {
　　　　　　// Called when the connection is made.
　　　　　　serviceRef = ((MyMusicService.MyBinder)service).getService();
　　　　}
　　　　public void onServiceDisconnected(ComponentName className) {
　　　　　　// Received when the service unexpectedly disconnects.
　　　　　　serviceRef = null;
　　　　}
};

// Bind to the service
Intent bindIntent = new Intent(MyActivity.this, MyMusicService.class);
bindService(bindIntent, mConnection, Context.BIND_AUTO_CREATE);

private void startPlayback(String album, String artist) {
　　int NOTIFICATION_ID = 1;
　　// Create an Intent that will open the main Activity if the notification is clicked.
　　Intent intent = new Intent(this, MyActivity.class);
　　PendingIntent pi = PendingIntent.getActivity(this, 1, intent, 0);
　　// Set the Notification UI parameters
　　Notification notification = new Notification(R.drawable.icon, “Starting Playback”, System.currentTimeMillis());
　　notification.setLatestEventInfo(this, album, artist, pi);
　　// Set the Notification as ongoing
　　notification.flags = notification.flags | Notification.FLAG_ONGOING_EVENT;
　　// Move the Service to the Foreground
　　startForeground(NOTIFICATION_ID, notification);
}

public void pausePlayback() {
　　// Move to the background and remove the Notification
　　stopForeground(true);
}

private class MyAsyncTask extends AsyncTask<String, Integer, String> {
@Override
protected String doInBackground(String... parameter) {
// Moved to a background thread.
String result = “”;
int myProgress = 0;
int inputLength = parameter[0].length();
// Perform background processing task, update myProgress]
for (int i = 1; i <= inputLength; i++) {
myProgress = i;
result = result + parameter[0].charAt(inputLength-i);
try {
Thread.sleep(100);
} catch (InterruptedException e) { }
publishProgress(myProgress);
}
// Return the value to be passed to onPostExecute
return result;
}
@Override
protected void onProgressUpdate(Integer... progress) {
// Synchronized to UI thread.
// Update progress bar, Notification, or other UI elements
asyncProgress.setProgress(progress[0]);
}
@Override
protected void onPostExecute(String result) {
// Synchronized to UI thread.
// Report results via UI update, Dialog, or notifications
asyncTextView.setText(result);
}
}

String input = “redrum ... redrum”;
new MyAsyncTask().execute(input);

import android.app.IntentService;
import android.content.Intent;
public class MyIntentService extends IntentService {
　　public MyIntentService(String name) {
　　　　super(name);
　　　　// TODO Complete any required constructor tasks.
　　}
　　@Override
　　public void onCreate() {
　　　　super.onCreate();
　　　　// TODO: Actions to perform when service is created.
　　}
　　@Override
　　protected void onHandleIntent(Intent intent) {
　　// This handler occurs on a background thread. TODO The time consuming task should be implemented here.
　　// Each Intent supplied to this IntentService will be processed consecutively here. When all incoming Intents have been processed the Service will terminate itself.
　　}
}

// This method is called on the main GUI thread.
private void backgroundExecution() {
　　// This moves the time consuming operation to a child thread.
　　Thread thread = new Thread(null, doBackgroundThreadProcessing, “Background”);
　　thread.start();
}
// Runnable that executes the background processing method.
private Runnable doBackgroundThreadProcessing = new Runnable() {
　　　　public void run() {
　　　　　　backgroundThreadProcessing();
　　　　}
};
// Method which does some processing in the background.
private void backgroundThreadProcessing() {
// [ ... Time consuming operations ... ]
}

runOnUiThread(new Runnable() {
　　public void run() {
　　// Update a View or other Activity UI element.
　　}
});

//This method is called on the main GUI thread.
private void backgroundExecution() {
　　// This moves the time consuming operation to a child thread.
　　Thread thread = new Thread(null, doBackgroundThreadProcessing, “Background”);
　　thread.start();
}
// Runnable that executes the background processing method.
private Runnable doBackgroundThreadProcessing = new Runnable() {
　　public void run() {
　　　　backgroundThreadProcessing();
　　}
};
// Method which does some processing in the background.
private void backgroundThreadProcessing() {
// [ ... Time consuming operations ... ]
// Use the Handler to post the doUpdateGUI
// runnable on the main UI thread.
　　handler.post(doUpdateGUI);
}
//Initialize a handler on the main thread.
private Handler handler = new Handler();
// Runnable that executes the updateGUI method.
private Runnable doUpdateGUI = new Runnable() {
　　public void run() {
　　　　updateGUI();
　　}
};
// This method must be called on the UI thread.
private void updateGUI() {
// [ ... Open a dialog or modify a GUI element ... ]
}

// Post a method on the UI thread after 1sec.
handler.postDelayed(doUpdateGUI, 1000);
// Post a method on the UI thread after the device has been in use for 5mins.
int upTime = 1000*60*5;
handler.postAtTime(doUpdateGUI, SystemClock.uptimeMillis()+upTime);

AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);

AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
// Set the alarm to wake the device if sleeping.
int alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP;
// Trigger the device in 10 seconds.
long timeOrLengthofWait = 10000;
// Create a Pending Intent that will broadcast and action
String ALARM_ACTION = “ALARM_ACTION”;
Intent intentToFire = new Intent(ALARM_ACTION);
PendingIntent alarmIntent = PendingIntent.getBroadcast(this, 0, intentToFire, 0);
// Set the alarm
alarmManager.set(alarmType, timeOrLengthofWait, alarmIntent);

alarmManager.cancel(alarmIntent);

// Get a reference to the Alarm Manager
AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
// Set the alarm to wake the device if sleeping.
int alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP;
// Schedule the alarm to repeat every half hour.
long timeOrLengthofWait = AlarmManager.INTERVAL_HALF_HOUR;
// Create a Pending Intent that will broadcast and action
String ALARM_ACTION = “ALARM_ACTION”;
Intent intentToFire = new Intent(ALARM_ACTION);
PendingIntent alarmIntent = PendingIntent.getBroadcast(this, 0, intentToFire, 0);
// Wake up the device to fire an alarm in half an hour, and every half-hour after that.
alarmManager.setInexactRepeating(alarmType, timeOrLengthofWait, timeOrLengthofWait, alarmIntent);