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| /*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.exemple.localService;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.os.Binder;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;
/**
* This is an example of implementing an application service that runs locally
* in the same process as the application. The {@link LocalServiceController}
* and {@link LocalServiceBinding} classes show how to interact with the
* service.
*
* <p>Notice the use of the {@link NotificationManager} when interesting things
* happen in the service. This is generally how background services should
* interact with the user, rather than doing something more disruptive such as
* calling startActivity().
*/
public class LocalService extends Service {
private NotificationManager mNM;
private Timer timer = new Timer();
private static final long UPDATE_INTERVAL = 5000;
private final String TAG="service";
//public static ServiceUpdateUIListener UI_UPDATE_LISTENER;
private static LocalServiceController MAIN_ACTIVITY;
public String url="http://10.0.2.2/imageTest.jpeg";
/**
* Class for clients to access. Because we know this service always
* runs in the same process as its clients, we don't need to deal with
* IPC.
*/
public class LocalBinder extends Binder {
LocalService getService() {
return LocalService.this;
}
}
@Override
public void onCreate() {
mNM = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
// Display a notification about us starting. We put an icon in the status bar.
showNotification();
// init the service here
_startService();
if (MAIN_ACTIVITY != null)
{Toast msg = Toast.makeText(LocalService.this, " MyService started ", Toast.LENGTH_LONG);
msg.show();}
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.i("LocalService", "Received start id " + startId + ": " + intent);
// We want this service to continue running until it is explicitly
// stopped, so return sticky.
return START_STICKY;
}
@Override
public void onDestroy() {
// Cancel the persistent notification.
mNM.cancel(R.string.local_service_started);
_shutdownService();
if (MAIN_ACTIVITY != null)
// Tell the user we stopped.
Toast.makeText(this, R.string.local_service_stopped, Toast.LENGTH_SHORT).show();
}
@Override
public IBinder onBind(Intent intent) {
return mBinder;
}
// This is the object that receives interactions from clients. See
// RemoteService for a more complete example.
private final IBinder mBinder = new LocalBinder();
/**
* Show a notification while this service is running.
*/
private void showNotification() {
// In this sample, we'll use the same text for the ticker and the expanded notification
CharSequence text = getText(R.string.local_service_started);
// Set the icon, scrolling text and timestamp
Notification notification = new Notification(R.drawable.stat_sample, text,
System.currentTimeMillis());
// The PendingIntent to launch our activity if the user selects this notification
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, LocalServiceController.class), 0);
// Set the info for the views that show in the notification panel.
notification.setLatestEventInfo(this, getText(R.string.local_service_label),
text, contentIntent);
// Send the notification.
// We use a layout id because it is a unique number. We use it later to cancel.
mNM.notify(R.string.local_service_started, notification);
}
private void _startService() {
timer.scheduleAtFixedRate(
new TimerTask() {
public void run() {
_getData(url);
}
},
0,
UPDATE_INTERVAL);
Log.i(getClass().getSimpleName(), "Timer started!!!");
}
private void _shutdownService() {
if (timer != null) timer.cancel();
Log.i(getClass().getSimpleName(), "Timer stopped!!!");
}
private void _getData(String url) {
InputStream content = null;
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
List nameValuePairs = new ArrayList(1);
//this is where you add your data to the post method
nameValuePairs.add(new BasicNameValuePair("name", "anthony"));
httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
// Execute HTTP Post Request
HttpResponse response = httpclient.execute(httpPost);
content = response.getEntity().getContent();
Log.i(getClass().getSimpleName(), "data size from servlet=" + content.toString());
//return content;
}catch (Exception e) {
//handle the exception !
Log.d(TAG,e.getMessage());
}
}
} |
