diff --git a/BluetoothController.java b/BluetoothController.java
deleted file mode 100644
index 31b850b..0000000
--- a/BluetoothController.java
+++ /dev/null
@@ -1,354 +0,0 @@
-package com.xc3fff0e.xmanager;
-
-import android.bluetooth.BluetoothAdapter;
-import android.bluetooth.BluetoothDevice;
-import android.bluetooth.BluetoothServerSocket;
-import android.bluetooth.BluetoothSocket;
-
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.HashMap;
-import java.util.UUID;
-
-public class BluetoothController {
-public static final String STATE_NONE       = "none";
-public static final String STATE_LISTEN     = "listen";
-public static final String STATE_CONNECTING = "connecting";
-public static final String STATE_CONNECTED  = "connected";
-
-private AcceptThread acceptThread;
-private ConnectThread connectThread;
-private ConnectedThread connectedThread;
-
-private String state = STATE_NONE;
-
-private static BluetoothController instance;
-
-public static synchronized BluetoothController getInstance() {
-if(instance == null) {
-instance = new BluetoothController();
-}
-
-return instance;
-}
-
-public synchronized void start(BluetoothConnect bluetoothConnect, BluetoothConnect.BluetoothConnectionListener listener, String tag, UUID uuid, BluetoothAdapter bluetoothAdapter) {
-if (connectThread != null) {
-connectThread.cancel();
-connectThread = null;
-}
-
-if (connectedThread != null) {
-connectedThread.cancel();
-connectedThread = null;
-}
-
-if (acceptThread != null) {
-acceptThread.cancel();
-acceptThread = null;
-}
-
-acceptThread = new AcceptThread(bluetoothConnect, listener, tag, uuid, bluetoothAdapter);
-acceptThread.start();}
-
-public synchronized void connect(BluetoothDevice device, BluetoothConnect bluetoothConnect, BluetoothConnect.BluetoothConnectionListener listener, String tag, UUID uuid, BluetoothAdapter bluetoothAdapter) {
-if (state.equals(STATE_CONNECTING)) {
-if (connectThread != null) {
-connectThread.cancel();
-connectThread = null;
-}
-}
-
-if (connectedThread != null) {
-connectedThread.cancel();
-connectedThread = null;
-}
-
-connectThread = new ConnectThread(device, bluetoothConnect, listener, tag, uuid, bluetoothAdapter);
-connectThread.start();
-}
-
-public synchronized void connected(BluetoothSocket socket, final BluetoothDevice device, BluetoothConnect bluetoothConnect, final BluetoothConnect.BluetoothConnectionListener listener, final String tag) {
-if (connectThread != null) {
-connectThread.cancel();
-connectThread = null;
-}
-
-if (connectedThread != null) {
-connectedThread.cancel();
-connectedThread = null;
-}
-
-if (acceptThread != null) {
-acceptThread.cancel();
-acceptThread = null;
-}
-
-connectedThread = new ConnectedThread(socket, bluetoothConnect, listener, tag);
-connectedThread.start();
-
-bluetoothConnect.getActivity().runOnUiThread(new Runnable() {
-@Override
-public void run() {
-HashMap<String, Object> deviceMap = new HashMap<>();
-deviceMap.put("name", device.getName());
-deviceMap.put("address", device.getAddress());
-
-listener.onConnected(tag, deviceMap);
-}
-});
-}
-
-public synchronized void stop(BluetoothConnect bluetoothConnect, final BluetoothConnect.BluetoothConnectionListener listener, final String tag) {
-if (connectThread != null) {
-connectThread.cancel();
-connectThread = null;
-}
-
-if (connectedThread != null) {
-connectedThread.cancel();
-connectedThread = null;
-}
-
-if (acceptThread != null) {
-acceptThread.cancel();
-acceptThread = null;
-}
-
-state = STATE_NONE;
-
-bluetoothConnect.getActivity().runOnUiThread(new Runnable() {
-@Override
-public void run() {
-listener.onConnectionStopped(tag);
-}
-});
-}
-
-public void write(byte[] out) {
-ConnectedThread r;
-
-synchronized (this) {
-if (!state.equals(STATE_CONNECTED)) return;
-r = connectedThread;
-}
-
-r.write(out);
-}
-
-public void connectionFailed(BluetoothConnect bluetoothConnect, final BluetoothConnect.BluetoothConnectionListener listener, final String tag, final String message) {
-state = STATE_NONE;
-
-bluetoothConnect.getActivity().runOnUiThread(new Runnable() {
-@Override
-public void run() {
-listener.onConnectionError(tag, state, message);
-}
-});
-}
-
-public void connectionLost(BluetoothConnect bluetoothConnect, final BluetoothConnect.BluetoothConnectionListener listener, final String tag) {
-state = STATE_NONE;
-
-bluetoothConnect.getActivity().runOnUiThread(new Runnable() {
-@Override
-public void run() {
-listener.onConnectionError(tag, state, "Bluetooth connection is disconnected");
-}
-});
-}
-
-public String getState() {
-return state;
-}
-
-private class AcceptThread extends Thread {
-private BluetoothServerSocket serverSocket;
-
-private BluetoothConnect bluetoothConnect;
-private BluetoothConnect.BluetoothConnectionListener listener;
-private String tag;
-
-public AcceptThread(BluetoothConnect bluetoothConnect, BluetoothConnect.BluetoothConnectionListener listener, String tag, UUID uuid, BluetoothAdapter bluetoothAdapter) {
-this.bluetoothConnect = bluetoothConnect;
-this.listener = listener;
-this.tag = tag;
-
-try {
-serverSocket = bluetoothAdapter.listenUsingRfcommWithServiceRecord(tag, uuid);
-} catch (Exception e) {
-e.printStackTrace();
-}
-
-state = STATE_LISTEN;
-}
-
-@Override
-public void run() {
-BluetoothSocket bluetoothSocket;
-
-while (!state.equals(STATE_CONNECTED)) {
-try {
-bluetoothSocket = serverSocket.accept();
-} catch (Exception e) {
-e.printStackTrace();
-break;
-}
-
-if (bluetoothSocket != null) {
-synchronized (BluetoothController.this) {
-switch (state) {
-case STATE_LISTEN:
-case STATE_CONNECTING:
-connected(bluetoothSocket, bluetoothSocket.getRemoteDevice(), bluetoothConnect, listener, tag);
-break;
-case STATE_NONE:
-case STATE_CONNECTED:
-try {
-bluetoothSocket.close();
-} catch (Exception e) {
-e.printStackTrace();
-}
-break;
-}
-}
-}
-}
-}
-
-public void cancel() {
-try {
-serverSocket.close();
-} catch (Exception e) {
-e.printStackTrace();
-}
-}
-}
-
-private class ConnectThread extends Thread {
-private BluetoothDevice device;
-private BluetoothSocket socket;
-
-private BluetoothConnect bluetoothConnect;
-private BluetoothConnect.BluetoothConnectionListener listener;
-private String tag;
-private BluetoothAdapter bluetoothAdapter;
-
-public ConnectThread(BluetoothDevice device, BluetoothConnect bluetoothConnect, BluetoothConnect.BluetoothConnectionListener listener, String tag, UUID uuid, BluetoothAdapter bluetoothAdapter) {
-this.device = device;
-this.bluetoothConnect = bluetoothConnect;
-this.listener = listener;
-this.tag = tag;
-this.bluetoothAdapter = bluetoothAdapter;
-
-try {
-socket = device.createRfcommSocketToServiceRecord(uuid);
-} catch (Exception e) {
-e.printStackTrace();
-}
-
-state = STATE_CONNECTING;
-}
-
-@Override
-public void run() {
-bluetoothAdapter.cancelDiscovery();
-
-try {
-socket.connect();
-} catch (Exception e) {
-try {
-socket.close();
-} catch (Exception e2) {
-e2.printStackTrace();
-}
-connectionFailed(bluetoothConnect, listener, tag, e.getMessage());
-return;
-}
-
-synchronized (BluetoothController.this) {
-connectThread = null;
-}
-
-connected(socket, device, bluetoothConnect, listener, tag);
-}
-
-public void cancel() {
-try {
-socket.close();
-} catch (Exception e) {
-e.printStackTrace();
-}
-}
-}
-
-private class ConnectedThread extends Thread {
-private BluetoothSocket socket;
-private InputStream inputStream;
-private OutputStream outputStream;
-
-private BluetoothConnect bluetoothConnect;
-private BluetoothConnect.BluetoothConnectionListener listener;
-private String tag;
-
-public ConnectedThread(BluetoothSocket socket, BluetoothConnect bluetoothConnect, BluetoothConnect.BluetoothConnectionListener listener, String tag) {
-this.bluetoothConnect = bluetoothConnect;
-this.listener = listener;
-this.tag = tag;
-
-this.socket = socket;
-
-try {
-inputStream = socket.getInputStream();
-outputStream = socket.getOutputStream();
-} catch (Exception e) {
-e.printStackTrace();
-}
-
-state = STATE_CONNECTED;
-}
-
-public void run() {
-while (state.equals(STATE_CONNECTED)) {
-try {
-final byte[] buffer = new byte[1024];
-final int bytes = inputStream.read(buffer);
-
-bluetoothConnect.getActivity().runOnUiThread(new Runnable() {
-@Override
-public void run() {
-listener.onDataReceived(tag, buffer, bytes);
-}
-});
-} catch (Exception e) {
-e.printStackTrace();
-connectionLost(bluetoothConnect, listener, tag);
-break;
-}
-}
-}
-
-public void write(final byte[] buffer) {
-try {
-outputStream.write(buffer);
-
-bluetoothConnect.getActivity().runOnUiThread(new Runnable() {
-@Override
-public void run() {
-listener.onDataSent(tag, buffer);
-}
-});
-} catch (Exception e) {
-e.printStackTrace();
-}
-}
-
-public void cancel() {
-try {
-socket.close();
-} catch (Exception e) {
-e.printStackTrace();
-}
-}
-}
-}
\ No newline at end of file