GCM

1. Requirements

1. Google console :: Project Id.

1. Enable API :: Get API key.

1. Client.

1. Server.

2. Sequence

1. Client sends Project Id to Google server.

1. Client get a GCM key.

1. Client relays this to server.

1. Client registers it GCM intent listener.

5. Server sends following request to the GCM server

1. Header

1. Target

1. Https://android.googleapis.com/gcm/send.

2. Header

1. Authentication

1. key=

1. API-key.

2. content-type

1. Application/json.

3. Content

1. registration_ids

1. (array) [].

2. data

1. (aso. array) {

1. Message.

1. ….

1. Client’s app’s listener receives the notification.

3. Sound

1. Notification.sound = Uri.parse("android.resource://" + getPackageName() + "/" +R.raw.pop);.

1. Notification.defaults |= Notification.DEFAULT_VIBRATE;.