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LaravelEchoAndroid

Laravel Echo Android client.

Installation

In your build.gradle paste the code bellow :

allprojects {
    repositories {
        maven { url 'https://jitpack.io' }
    }
}

And in dependencies :

dependencies {
    compile 'com.github.MrBin99:LaravelEchoAndroid:{latest-version}'
}

Basic usage

Creation

// Setup options
EchoOptions options = new EchoOptions();

// Setup host of your Laravel Echo Server
options.host = "http://{my-host}:{my-port}";

/*
 * Add headers for authorizing your users (private and presence channels).
 * This line can change matching how you have configured 
 * your guards on your Laravel application
 */
options.headers.put("Authorization", "Bearer {token}");

// Create the client
Echo echo = new Echo(options);
echo.connect(new EchoCallback() {
    @Override
    public void call(Object... args) {
        // Success connect
    }
}, new EchoCallback() {
    @Override
    public void call(Object... args) {
        // Error connect
    }
});

Don't forget to close your Echo client when you've done with it or when the user kill the app. Warning: closing the socket means that you wil unsubscribe to all channels, and you will quit all presence channel you're currently in.

@Override
public void onDestroy() {
    super.onDestroy();

    echo.disconnect();
}

Public channels

For subscribing on public channel (which means no authentication is needed) and listening for an event :

echo.channel("channel-name")
    .listen("EventName", new EchoCallback() {
        @Override
        public void call(Object... args) {
            // Event thrown.
        }
    });

Private channels

For subscribing on private channel, this means that you need to be authenticated with headers and have the right to enter this channel :

SocketIOPrivateChannel privateChannel = echo.privateChannel("channel-name");
privateChannel.listen("EventName", new EchoCallback() {
    @Override
    public void call(Object... args) {
        // Event thrown.
    }
});

If you want to send a private message to only one member of this private channel :

try {
    JSONObject data = new JSONObject();
    data.put("name", "john-doe");
    privateChannel.whisper("hello", data, new EchoCallback() {
        @Override
        public void call(Object... args) {
            // Whisper received
        }
    });
} catch (Exception e) {
    e.printStackTrace();
}

And on the other side :

privateChannel.listenForWhisper("hello", new EchoCallback() {
    @Override
    public void call(Object... args) {
        // Received !     
    }
});

Presence channels

To enter a presence, like a private channel, you must be authenticated and have the rights.

SocketIOPresenceChannel presenceChannel = echo.presenceChannel("presence-channel");

You can now listen to particular events on presence channels :

presenceChannel.here(new EchoCallback() {
    @Override
    public void call(Object... args) {
        // Gets users present in this channel.
        // Called just after connecting to it.
    }
});

presenceChannel.joining(new EchoCallback() {
    @Override
    public void call(Object... args) {
        // Called when new user join the channel.
    }
});

presenceChannel.leaving(new EchoCallback() {
    @Override
    public void call(Object... args) {
        // Called when a user leave the channel
    }
});

Leaving

For leaving a channel and don't receive events related to them anymore :

echo.leave("channel-name");

For presence channel, this action make Laravel Echo Server send a "leaving" event to all other clients connected to this channel.

Listening for general Socket.io events

You can also listen for generic Socket.io events :

echo.on(Socket.EVENT_ERROR, new EchoCallback() {
    @Override
    public void call(Object... args) {
        // Callback
    }
});

You can check all available predefined events on the io.socket.client.Socket class or on https://stackoverflow.com/questions/24224287/list-of-socket-io-events.

If you want to delete the callback :

echo.off(Socket.EVENT_ERROR);

More information

For more information, please visit the Laravel Broadcasting documentation.

Thanks

Thanks for this library https://github.com/socketio/socket.io-client-java which is a wrapper of Socket.IO in Java.