Explanation about push for Android using the Android Cloud to Device Messaging Library.

1. Fernando Cejas - @fernando_cejas
Fernando García - @fegabe

2.  Introduction
 What’s Push?
 Push vs. Poll
 Cloud to device messaging
 Android Implementation
 Build your app
?
 F.A.Q

3.  “fastDove Push”
 Who we are?
App for this demo
 http://bit.ly/ac2dm_sample

4. Push technology, or server push, describes a style of Internet-
based communication where the request for a given
transaction is initiated by the publisher or central server.
 Harder to implement
 Less battery consumption
 Constant connection

5. Push me your news!
Any news?
No!
Any news?
No!
Any news?
No! New News!
content!
Any news?
Yes! (News)
 Transfer
content as soon as available
 Save device battery
 Reduce data traffic for user

6.  HaIt
allows third-party application servers to
send lightweight messages to their Android
applications
 C2DM makes no guarantees about delivery or
the order of messages
 Anapplication on an Android device doesn’t
need to be running to receive messages

7.  Itdoes not provide any built-in user interface or
other handling for message data
 Itrequires devices running Android 2.2 or higher
that also have the Market application installed
 Ituses an existing connection for Google
services

8. 1. Register device for Push 3. Device receives message
2. App server send message 4. Unregister device

9.  Requesting a Registration ID
C2DMessaging.register(this, "sender@gmail.com");

10.  Receiving the Registration ID
public class C2DMReceiver extends C2DMBaseReceiver {
public C2DMReceiver() {
super("sender@gmail.com");
}
@Override
public void onRegistered(Context context, String registrationId) {
// TODO send registration ID to the app server
}
...
}

11.  Receiving Messages
public class C2DMReceiver extends C2DMBaseReceiver {
...
@Override
protected void onMessage(Context context, Intent intent) {
String payload = intent.getStringExtra("payload");
// TODO handle the message
}
}

12.  Android Manifest
<application>
...
<!-- required for AC2DM -->
<service android:name="com.fastdove.sample.ac2dm.C2DMReceiver" />
<receiver
android:name="com.google.android.c2dm.C2DMBroadcastReceiver"
android:permission="com.google.android.c2dm.permission.SEND">
<intent-filter>
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="com.fastdove.sample.ac2dm" />
</intent-filter>
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<category android:name="com.fastdove.sample.ac2dm" />
</intent-filter>
</receiver>
<!-- END required for AC2DM -->
</application>

13.  Android Manifest
<application>
...
</application>
<!-- required for AC2DM -->
<permission
android:name="com.fastdove.notifications.demo.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="com.fastdove.notifications.demo.permission.C2D_MESSAGE" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<!-- END required for AC2DM -->

14.  Request Authorization Token
$ curl https://www.google.com/accounts/ClientLogin -d
accountType=GOOGLE -d source=Google-cURL-Example -d
service=ac2dm -d Email=sender@gmail.com -d "Passwd=***"
 Send Message
$ curl --header "Authorization: GoogleLogin auth=authorization_id"
"https://android.apis.google.com/c2dm/send" -d
registration_id=device_registration_id -d "data.payload=your
message" -d collapse_key=something

17. http://www.fastdove.com/
@fastdove
@fastdovedev
info@fastdove.com
Fernando Cejas - @fernando_cejas
Fernando García - @fegabe

18. Say thanks to the people I got
information from:
@johanni
@vogella