Important

I used a BufferedReader to read data from the bluetooth socket. As I'm reading with readLine(), each message you're sending to the Android must end with a \n. Otherwise it won't be received.

The class uses listeners so everything is really easy! Enjoy :)

Install

Add to your gradle dependencies:

compile 'me.aflak.libraries:bluetooth:1.2.4'

In your Activity

Bluetooth bluetooth = new Bluetooth(this);
bluetooth.enableBluetooth();

Listener to scan and pair

bluetooth.setDiscoveryCallback(new Bluetooth.DiscoveryCallback() {

      @Override
      public void onFinish() {
            // scan finished
      }
      
      @Override
      public void onDevice(BluetoothDevice device) {
            // device found
      }
      
      @Override
      public void onPair(BluetoothDevice device) {
            // device paired
      }
      
      @Override
      public void onUnpair(BluetoothDevice device) {
            // device unpaired
      }
      
      @Override
      public void onError(String message) {
            // error occurred
      }
});

Scan and Pair

bluetooth.scanDevices();
bluetooth.pair(device);

Listener to communicate

bluetooth.setCommunicationCallback(new Bluetooth.CommunicationCallback() {
      @Override
      public void onConnect(BluetoothDevice device) {
              // device connected
      }
      
      @Override
      public void onDisconnect(BluetoothDevice device, String message) {
            // device disconnected
      }
      
      @Override
      public void onMessage(String message) {
            // message received (it has to end with a \n to be received)
      }
      
      @Override
      public void onError(String message) {
            // error occurred 
      }
      
      @Override
      public void onConnectError(BluetoothDevice device, String message) {
            // error during connection
      }
});

Connect to device

// three options
bluetooth.connectToName("name");
bluetooth.connectToAddress("address");
bluetooth.connectToDevice(device);

Send a message

bluetooth.send("message");

Get paired devices

List<BluetoothDevice> devices = bluetooth.getPairedDevices();