From a2b5112b7b096c3b416b91e91dfb14d408984d72 Mon Sep 17 00:00:00 2001 From: Zhengyu Peng Date: Thu, 24 Feb 2022 09:30:22 -0500 Subject: [PATCH] Delete BluetoothService.kt --- .../hexapod/network/BluetoothService.kt | 525 ------------------ 1 file changed, 525 deletions(-) delete mode 100644 software/android/app/src/main/java/com/rookiedev/hexapod/network/BluetoothService.kt diff --git a/software/android/app/src/main/java/com/rookiedev/hexapod/network/BluetoothService.kt b/software/android/app/src/main/java/com/rookiedev/hexapod/network/BluetoothService.kt deleted file mode 100644 index 30792a0..0000000 --- a/software/android/app/src/main/java/com/rookiedev/hexapod/network/BluetoothService.kt +++ /dev/null @@ -1,525 +0,0 @@ -package com.rookiedev.hexapod.network - -import android.annotation.SuppressLint -import android.bluetooth.* -import android.content.Context -import android.os.Bundle -import android.os.Handler -import java.io.IOException -import java.io.InputStream -import java.io.OutputStream -import java.util.* - - -/** - * This class does all the work for setting up and managing Bluetooth - * connections with other devices. It has a thread that listens for - * incoming connections, a thread for connecting with a device, and a - * thread for performing data transmissions when connected. - */ -class BluetoothService(context: Context?) { - // Member fields - private var bluetoothManager: BluetoothManager? = null - private var mContext: Context? = null -// private val mAdapter: BluetoothAdapter -// private val mHandler: Handler - private var mSecureAcceptThread: AcceptThread? = null - private var mInsecureAcceptThread: AcceptThread? = null - private var mConnectThread: ConnectThread? = null - private var mConnectedThread: ConnectedThread? = null - - /** - * Return the current connection state. - */ - @get:Synchronized - var mState: Int - private set - private var mNewState: Int - - /** - * Update UI title according to the current state of the chat connection - */ - @Synchronized - private fun updateUserInterfaceTitle() { - mState = mState -// Log.d(TAG, "updateUserInterfaceTitle() " + mNewState + " -> " + state) - mNewState = mState - - // Give the new state to the Handler so the UI Activity can update -// mHandler.obtainMessage(Constants.MESSAGE_STATE_CHANGE, mNewState, -1).sendToTarget() - } - - /** - * Start the chat service. Specifically start AcceptThread to begin a - * session in listening (server) mode. Called by the Activity onResume() - */ - @Synchronized - fun start() { -// Log.d(TAG, "start") - - // Cancel any thread attempting to make a connection - if (mConnectThread != null) { - mConnectThread!!.cancel() - mConnectThread = null - } - - // Cancel any thread currently running a connection - if (mConnectedThread != null) { - mConnectedThread!!.cancel() - mConnectedThread = null - } - - // Start the thread to listen on a BluetoothServerSocket - if (mSecureAcceptThread == null) { - mSecureAcceptThread = AcceptThread(true) - mSecureAcceptThread!!.start() - } - if (mInsecureAcceptThread == null) { - mInsecureAcceptThread = AcceptThread(false) - mInsecureAcceptThread!!.start() - } - // Update UI title - updateUserInterfaceTitle() - } - - /** - * Start the ConnectThread to initiate a connection to a remote device. - * - * @param device The BluetoothDevice to connect - * @param secure Socket Security type - Secure (true) , Insecure (false) - */ - @Synchronized - fun connect(device: BluetoothDevice, secure: Boolean) { -// Log.d(TAG, "connect to: $device") - - // Cancel any thread attempting to make a connection - if (mState == STATE_CONNECTING) { - if (mConnectThread != null) { - mConnectThread!!.cancel() - mConnectThread = null - } - } - - // Cancel any thread currently running a connection - if (mConnectedThread != null) { - mConnectedThread!!.cancel() - mConnectedThread = null - } - - // Start the thread to connect with the given device - mConnectThread = ConnectThread(device, secure) - mConnectThread!!.start() - // Update UI title - updateUserInterfaceTitle() - } - - /** - * Start the ConnectedThread to begin managing a Bluetooth connection - * - * @param socket The BluetoothSocket on which the connection was made - * @param device The BluetoothDevice that has been connected - */ - @SuppressLint("MissingPermission") - @Synchronized - fun connected(socket: BluetoothSocket?, device: BluetoothDevice, socketType: String) { -// Log.d(TAG, "connected, Socket Type:$socketType") - - // Cancel the thread that completed the connection - if (mConnectThread != null) { - mConnectThread!!.cancel() - mConnectThread = null - } - - // Cancel any thread currently running a connection - if (mConnectedThread != null) { - mConnectedThread!!.cancel() - mConnectedThread = null - } - - // Cancel the accept thread because we only want to connect to one device - if (mSecureAcceptThread != null) { - mSecureAcceptThread!!.cancel() - mSecureAcceptThread = null - } - if (mInsecureAcceptThread != null) { - mInsecureAcceptThread!!.cancel() - mInsecureAcceptThread = null - } - - // Start the thread to manage the connection and perform transmissions - mConnectedThread = ConnectedThread(socket, socketType) - mConnectedThread!!.start() - - // Send the name of the connected device back to the UI Activity -// val msg = mHandler.obtainMessage(Constants.MESSAGE_DEVICE_NAME) - val bundle = Bundle() - bundle.putString(Constants.DEVICE_NAME, device.name) -// msg.data = bundle -// mHandler.sendMessage(msg) - // Update UI title - updateUserInterfaceTitle() - } - - /** - * Stop all threads - */ - @Synchronized - fun stop() { -// Log.d(TAG, "stop") - if (mConnectThread != null) { - mConnectThread!!.cancel() - mConnectThread = null - } - if (mConnectedThread != null) { - mConnectedThread!!.cancel() - mConnectedThread = null - } - if (mSecureAcceptThread != null) { - mSecureAcceptThread!!.cancel() - mSecureAcceptThread = null - } - if (mInsecureAcceptThread != null) { - mInsecureAcceptThread!!.cancel() - mInsecureAcceptThread = null - } - mState = STATE_NONE - // Update UI title - updateUserInterfaceTitle() - } - - /** - * Write to the ConnectedThread in an unsynchronized manner - * - * @param out The bytes to write - * @see ConnectedThread.write - */ - fun write(out: ByteArray?) { - // Create temporary object - var r: ConnectedThread? - // Synchronize a copy of the ConnectedThread - synchronized(this) { - if (mState != STATE_CONNECTED) return - r = mConnectedThread - } - // Perform the write unsynchronized - r!!.write(out) - } - - /** - * Indicate that the connection attempt failed and notify the UI Activity. - */ - private fun connectionFailed() { - // Send a failure message back to the Activity -// val msg = mHandler.obtainMessage(Constants.MESSAGE_TOAST) - val bundle = Bundle() - bundle.putString(Constants.TOAST, "Unable to connect device") -// msg.data = bundle -// mHandler.sendMessage(msg) - mState = STATE_NONE - // Update UI title - updateUserInterfaceTitle() - - // Start the service over to restart listening mode - start() - } - - /** - * Indicate that the connection was lost and notify the UI Activity. - */ - private fun connectionLost() { - // Send a failure message back to the Activity -// val msg = mHandler.obtainMessage(Constants.MESSAGE_TOAST) - val bundle = Bundle() - bundle.putString(Constants.TOAST, "Device connection was lost") -// msg.data = bundle -// mHandler.sendMessage(msg) - mState = STATE_NONE - // Update UI title - updateUserInterfaceTitle() - - // Start the service over to restart listening mode - start() - } - - /** - * This thread runs while listening for incoming connections. It behaves - * like a server-side client. It runs until a connection is accepted - * (or until cancelled). - */ - @SuppressLint("MissingPermission") - private inner class AcceptThread(secure: Boolean) : Thread() { - // The local server socket - private val mmServerSocket: BluetoothServerSocket? - private val mSocketType: String - override fun run() { -// Log.d( -// TAG, "Socket Type: " + mSocketType + -// "BEGIN mAcceptThread" + this -// ) - name = "AcceptThread$mSocketType" - var socket: BluetoothSocket? - - // Listen to the server socket if we're not connected - while (mState != STATE_CONNECTED) { - socket = try { - // This is a blocking call and will only return on a - // successful connection or an exception - mmServerSocket!!.accept() - } catch (e: IOException) { -// Log.e(TAG, "Socket Type: " + mSocketType + "accept() failed", e) - break - } - - // If a connection was accepted - if (socket != null) { - synchronized(this@BluetoothService) { - when (mState) { - STATE_LISTEN, STATE_CONNECTING -> // Situation normal. Start the connected thread. - connected( - socket, socket.remoteDevice, - mSocketType - ) - STATE_NONE, STATE_CONNECTED -> // Either not ready or already connected. Terminate new socket. - try { - socket.close() - } catch (e: IOException) { -// Log.e( -// TAG, -// "Could not close unwanted socket", -// e -// ) - } - } - } - } - } -// Log.i( -// TAG, -// "END mAcceptThread, socket Type: $mSocketType" -// ) - } - - fun cancel() { -// Log.d(TAG, "Socket Type" + mSocketType + "cancel " + this) - try { - mmServerSocket!!.close() - } catch (e: IOException) { -// Log.e(TAG, "Socket Type" + mSocketType + "close() of server failed", e) - } - } - - init { - var tmp: BluetoothServerSocket? = null - mSocketType = if (secure) "Secure" else "Insecure" - - // Create a new listening server socket - try { - tmp = if (secure) { - bluetoothManager!!.adapter.listenUsingRfcommWithServiceRecord( - NAME_SECURE, - MY_UUID_SECURE - ) - } else { - bluetoothManager!!.adapter.listenUsingInsecureRfcommWithServiceRecord( - NAME_INSECURE, MY_UUID_INSECURE - ) - } - } catch (e: IOException) { -// Log.e(TAG, "Socket Type: " + mSocketType + "listen() failed", e) - } - mmServerSocket = tmp - mState = STATE_LISTEN - } - } - - /** - * This thread runs while attempting to make an outgoing connection - * with a device. It runs straight through; the connection either - * succeeds or fails. - */ - @SuppressLint("MissingPermission") - private inner class ConnectThread(private val mmDevice: BluetoothDevice, secure: Boolean) : - Thread() { - private val mmSocket: BluetoothSocket? - private val mSocketType: String - override fun run() { -// Log.i( -// TAG, -// "BEGIN mConnectThread SocketType:$mSocketType" -// ) - name = "ConnectThread$mSocketType" - - // Always cancel discovery because it will slow down a connection - bluetoothManager!!.adapter.cancelDiscovery() - - // Make a connection to the BluetoothSocket - try { - // This is a blocking call and will only return on a - // successful connection or an exception - mmSocket!!.connect() - } catch (e: IOException) { - // Close the socket - try { - mmSocket!!.close() - } catch (e2: IOException) { -// Log.e( -// TAG, "unable to close() " + mSocketType + -// " socket during connection failure", e2 -// ) - } - connectionFailed() - return - } - - // Reset the ConnectThread because we're done - synchronized(this@BluetoothService) { mConnectThread = null } - - // Start the connected thread - connected(mmSocket, mmDevice, mSocketType) - } - - fun cancel() { - try { - mmSocket!!.close() - } catch (e: IOException) { -// Log.e( -// TAG, -// "close() of connect $mSocketType socket failed", e -// ) - } - } - - init { - var tmp: BluetoothSocket? = null - mSocketType = if (secure) "Secure" else "Insecure" - - // Get a BluetoothSocket for a connection with the - // given BluetoothDevice - try { - tmp = if (secure) { - mmDevice.createRfcommSocketToServiceRecord( - MY_UUID_SECURE - ) - } else { - mmDevice.createInsecureRfcommSocketToServiceRecord( - MY_UUID_INSECURE - ) - } - } catch (e: IOException) { -// Log.e(TAG, "Socket Type: " + mSocketType + "create() failed", e) - } - mmSocket = tmp - mState = STATE_CONNECTING - } - } - - /** - * This thread runs during a connection with a remote device. - * It handles all incoming and outgoing transmissions. - */ - private inner class ConnectedThread(socket: BluetoothSocket?, socketType: String) : - Thread() { - private val mmSocket: BluetoothSocket? = socket - private val mmInStream: InputStream? - private val mmOutStream: OutputStream? - override fun run() { -// Log.i(TAG, "BEGIN mConnectedThread") - val buffer = ByteArray(1024) - var bytes: Int - - // Keep listening to the InputStream while connected - while (mState == STATE_CONNECTED) { - try { - // Read from the InputStream - bytes = mmInStream!!.read(buffer) - - // Send the obtained bytes to the UI Activity -// mHandler.obtainMessage(Constants.MESSAGE_READ, bytes, -1, buffer) -// .sendToTarget() - } catch (e: IOException) { -// Log.e(TAG, "disconnected", e) - connectionLost() - break - } - } - } - - /** - * Write to the connected OutStream. - * - * @param buffer The bytes to write - */ - fun write(buffer: ByteArray?) { - try { - mmOutStream!!.write(buffer) - - // Share the sent message back to the UI Activity -// mHandler.obtainMessage(Constants.MESSAGE_WRITE, -1, -1, buffer) -// .sendToTarget() - } catch (e: IOException) { -// Log.e(TAG, "Exception during write", e) - } - } - - fun cancel() { - try { - mmSocket!!.close() - } catch (e: IOException) { -// Log.e(TAG, "close() of connect socket failed", e) - } - } - - init { -// Log.d(TAG, "create ConnectedThread: $socketType") - var tmpIn: InputStream? = null - var tmpOut: OutputStream? = null - - // Get the BluetoothSocket input and output streams - try { - tmpIn = socket!!.inputStream - tmpOut = socket.outputStream - } catch (e: IOException) { -// Log.e(TAG, "temp sockets not created", e) - } - mmInStream = tmpIn - mmOutStream = tmpOut - mState = STATE_CONNECTED - } - } - - companion object { - // Debugging - private const val TAG = "BluetoothChatService" - - // Name for the SDP record when creating server socket - private const val NAME_SECURE = "BluetoothChatSecure" - private const val NAME_INSECURE = "BluetoothChatInsecure" - - // Unique UUID for this application - private val MY_UUID_SECURE = UUID.fromString("fa87c0d0-afac-11de-8a39-0800200c9a66") - private val MY_UUID_INSECURE = UUID.fromString("8ce255c0-200a-11e0-ac64-0800200c9a66") - - // Constants that indicate the current connection state - const val STATE_NONE = 0 // we're doing nothing - const val STATE_LISTEN = 1 // now listening for incoming connections - const val STATE_CONNECTING = 2 // now initiating an outgoing connection - const val STATE_CONNECTED = 3 // now connected to a remote device - } - - /** - * Constructor. Prepares a new BluetoothChat session. - * - * @param context The UI Activity Context - * @param handler A Handler to send messages back to the UI Activity - */ - init { - mContext = context -// mAdapter = BluetoothAdapter.getDefaultAdapter() - bluetoothManager = - mContext!!.getSystemService(Context.BLUETOOTH_SERVICE) as BluetoothManager - bluetoothManager!!.adapter - mState = STATE_NONE - mNewState = mState -// mHandler = handler - } -} \ No newline at end of file