Question: What is Push Notification in Android?
Push notifications let your application notify a user of new messages or events even when the user is Offline.
Question: How to get to know Push Notification in Android?
In Android devices, when a device receives a push notification, your application's icon and a message appear in the status bar.
Question: What are basic steps to implements push notifiction in Android Application?
- Registering for the Push Service
- Application must have the permissions to receive pushes and show notifications.
- Choose Your Push Icon
- Add your Parse API keys Parse.initialize(this, "YOUR_APP_ID", "YOUR_CLIENT_KEY");
- Enable Push Notifications in Mobile
PHP script for send notification to google services when event/message received so that notification start showing on user device.
// Set POST variables
$url = 'https://android.googleapis.com/gcm/send';
$registrationIDs = array('Mobile Device Id1','Mobile Device Id3','Mobile Device Id3');
$message='message_received';
$apiKey='XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX';
$fields = array(
'registration_ids' => $registrationIDs,
'data' => array( "message" => $message ),
);
$headers = array(
'Authorization: key=' . $apiKey,
'Content-Type: application/json'
);
// Open connection
$ch = curl_init();
// Set the URL, number of POST vars, POST data
curl_setopt( $ch, CURLOPT_URL, $url);
curl_setopt( $ch, CURLOPT_POST, true);
curl_setopt( $ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode( $fields));
// Execute post
$result = curl_exec($ch);
// Close connection
curl_close($ch);
