Step 1: Sign-up for a C2DM account with Google
Follow the steps here. Normally takes a day or so before you are ready to roll.==>
https://developers.google.com/android/c2dm/signup
Step 2: Setup your Manifest
Overview of the manifest changes:
1. Permission to receive C2DM messages
2. Access to the internet
3. Restrict access to your C2DM messages so no other app can see them
4. Declare a Receiver, that we’ll create later, that will let us receive the C2DM events
5. Make sure that the minSdkVersion is set so that only 2.2 and higher can access your app
Step 3: Send the Registration call
Intent registrationIntent = new Intent("com.google.android.c2dm.intent.REGISTER");
registrationIntent.putExtra("app", PendingIntent.getBroadcast(context, 0, new Intent(), 0));
registrationIntent.putExtra("sender", aliasEmailUsedAtSignup);
context.startService(registrationIntent);
Step 4: Handling Registration in your Receiver
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
Log.w("C2DM", "Message Receiver called");
if ("com.google.android.c2dm.intent.RECEIVE".equals(action)) {
Log.w("C2DM", "Received message");
final String payload = intent.getStringExtra("payload");
Log.d("C2DM", "dmControl: payload = " + payload);
// TODO Send this to my application server to get the real data
// Lets make something visible to show that we received the message
createNotification(context, payload);}}
public void createNotification(Context context, String payload) {
NotificationManager notificationManager = (NotificationManager) context
.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(R.drawable.icon,
"Message received", System.currentTimeMillis());
// Hide the notification after its selected
notification.flags |= Notification.FLAG_AUTO_CANCEL;
Intent intent = new Intent(context, MessageReceivedActivity.class);
intent.putExtra("payload", payload);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0,
intent, 0);
notification.setLatestEventInfo(context, "Message",
"New message received", pendingIntent);
notificationManager.notify(0, notification);
}
Step 5. Do the server side scripting in to the PHP.
$username,
'Passwd' => $password,
'accountType' => 'HOSTED_OR_GOOGLE',
'source' => 'Company-AppName-Version',
'service' => 'ac2dm');
curl_setopt($curl, CURLOPT_HEADER, true);
curl_setopt($curl, CURLOPT_POST, true);
// curl_setopt($curl, CURLOPT_FRESH_CONNECT, true);
curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
$response = curl_exec($curl);
curl_close($curl);
if (strpos($response, '200 OK') === false) {
return false;
}
// Get the Auth string
preg_match("/Auth=([a-z0-9_-]+)/i", $response, $matches);
$this->authString = $matches[1];
//echo '
Receponce Code = ';
//echo $this->authString;
//echo '
';
return $this->authString;
}
/**
* Send HTTP POST data form
*/
function sendMessage($deviceRegistrationId, $msgType, $txtmsg) {
$headers[] = 'Authorization: GoogleLogin auth='.$this->authString;
$data = array(
'registration_id' => $deviceRegistrationId,
'collapse_key' => date("Y-m-d H:i:s"),
'data.message' => $txtmsg //TODO: Add your data here.
);
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, "https://android.apis.google.com/c2dm/send");
// curl_setopt($curl,CURLOPT_URL,"https://android.clients.google.com/c2dm/send");
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
// curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
curl_setopt($curl, CURLOPT_HEADER, 0);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
$respone = curl_exec($curl);
curl_close($curl);
return $respone;
}
}
?>
Another PHP file
getAuthToken("abhikurlekar16@gmail.com", "abhikurlekar");
if (!$result) {
echo "get auth token error 1";
}
if(isset($_POST['send']))
{
$txtmsg = $_POST['txtmsg'];
$sql = "SELECT * FROM Tbl_Device_RegistrationId";
$result = mssql_query($sql);
while($row = mssql_fetch_assoc($result))
{
$deviceRegistrationId = $row['RegistrationId'];
$res = $c2dm->sendMessage($deviceRegistrationId , 'wishes', $txtmsg);
if($res !== '')
{
?>
window.location = "a_post.php?r=1";
And the message send by java server(Which on localhost) follow the
Step 5: Sending Messages from your server side application
The server side scripting is outside the scope of this tutorial. Some references can be found here!=====>>
http://www.vogella.com/articles/AndroidCloudToDeviceMessaging/article.html#c2dm_sendmessage
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