我正在尝试使用Mitch Tabian编写的BluetoothConnectionService连接到Microchip BM77双模式模块。我正在尝试连接透明的BT。
从logcat看来，它无法连接到UUID，然后关闭套接字。
此BM77设备无法使用RFcommsocket连接吗？是否需要其他UUID？
package com.example.user.bluetooth_communication;
import android.app.ProgressDialog;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothServerSocket;
import android.bluetooth.BluetoothSocket;
import android.content.Context;
import android.util.Log;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.charset.Charset;
import java.util.UUID;
/**
* Created by User on 12/21/2016.
*/
public class BluetoothConnectionService {
private static final String TAG = "BluetoothConnectionServ";
private static final String appName = "MYAPP";
private static final UUID MY_UUID_INSECURE =
UUID.fromString("8ce255c0-200a-11e0-ac64-0800200c9a66");
private final BluetoothAdapter mBluetoothAdapter;
Context mContext;
private AcceptThread mInsecureAcceptThread;
private ConnectThread mConnectThread;
private BluetoothDevice mmDevice;
private UUID deviceUUID;
ProgressDialog mProgressDialog;
private ConnectedThread mConnectedThread;
public BluetoothConnectionService(Context context) {
mContext = context;
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
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).
*/
private class AcceptThread extends Thread {
// The local server socket
private final BluetoothServerSocket mmServerSocket;
public AcceptThread(){
BluetoothServerSocket tmp = null;
// Create a new listening server socket
try{
tmp = mBluetoothAdapter.listenUsingInsecureRfcommWithServiceRecord(appName, MY_UUID_INSECURE);
Log.d(TAG, "AcceptThread: Setting up Server using: " + MY_UUID_INSECURE);
}catch (IOException e){
Log.e(TAG, "AcceptThread: IOException: " + e.getMessage() );
}
mmServerSocket = tmp;
}
public void run(){
Log.d(TAG, "run: AcceptThread Running.");
BluetoothSocket socket = null;
try{
// This is a blocking call and will only return on a
// successful connection or an exception
Log.d(TAG, "run: RFCOM server socket start.....");
socket = mmServerSocket.accept();
Log.d(TAG, "run: RFCOM server socket accepted connection.");
}catch (IOException e){
Log.e(TAG, "AcceptThread: IOException: " + e.getMessage() );
}
//talk about this is in the 3rd
if(socket != null){
connected(socket,mmDevice);
}
Log.i(TAG, "END mAcceptThread ");
}
public void cancel() {
Log.d(TAG, "cancel: Canceling AcceptThread.");
try {
mmServerSocket.close();
} catch (IOException e) {
Log.e(TAG, "cancel: Close of AcceptThread ServerSocket failed. " + e.getMessage() );
}
}
}
/**
* This thread runs while attempting to make an outgoing connection
* with a device. It runs straight through; the connection either
* succeeds or fails.
*/
private class ConnectThread extends Thread {
private BluetoothSocket mmSocket;
public ConnectThread(BluetoothDevice device, UUID uuid) {
Log.d(TAG, "ConnectThread: started.");
mmDevice = device;
deviceUUID = uuid;
}
public void run(){
BluetoothSocket tmp = null;
Log.i(TAG, "RUN mConnectThread ");
// Get a BluetoothSocket for a connection with the
// given BluetoothDevice
try {
Log.d(TAG, "ConnectThread: Trying to create InsecureRfcommSocket using UUID: "
+MY_UUID_INSECURE );
tmp = mmDevice.createRfcommSocketToServiceRecord(deviceUUID);
} catch (IOException e) {
Log.e(TAG, "ConnectThread: Could not create InsecureRfcommSocket " + e.getMessage());
}
mmSocket = tmp;
// Always cancel discovery because it will slow down a connection
mBluetoothAdapter.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();
Log.d(TAG, "run: ConnectThread connected.");
} catch (IOException e) {
// Close the socket
try {
mmSocket.close();
Log.d(TAG, "run: Closed Socket.");
} catch (IOException e1) {
Log.e(TAG, "mConnectThread: run: Unable to close connection in socket " + e1.getMessage());
}
Log.d(TAG, "run: ConnectThread: Could not connect to UUID: " + MY_UUID_INSECURE );
}
//will talk about this in the 3rd video
connected(mmSocket,mmDevice);
}
public void cancel() {
try {
Log.d(TAG, "cancel: Closing Client Socket.");
mmSocket.close();
} catch (IOException e) {
Log.e(TAG, "cancel: close() of mmSocket in Connectthread failed. " + e.getMessage());
}
}
}
/**
* Start the chat service. Specifically start AcceptThread to begin a
* session in listening (server) mode. Called by the Activity onResume()
*/
public synchronized void start() {
Log.d(TAG, "start");
// Cancel any thread attempting to make a connection
if (mConnectThread != null) {
mConnectThread.cancel();
mConnectThread = null;
}
if (mInsecureAcceptThread == null) {
mInsecureAcceptThread = new AcceptThread();
mInsecureAcceptThread.start();
}
}
/**
AcceptThread starts and sits waiting for a connection.
Then ConnectThread starts and attempts to make a connection with the other devices AcceptThread.
**/
public void startClient(BluetoothDevice device,UUID uuid){
Log.d(TAG, "startClient: Started.");
//initprogress dialog
mProgressDialog = ProgressDialog.show(mContext,"Connecting Bluetooth"
,"Please Wait...",true);
mConnectThread = new ConnectThread(device, uuid);
mConnectThread.start();
}
/**
Finally the ConnectedThread which is responsible for maintaining the BTConnection, Sending the data, and
receiving incoming data through input/output streams respectively.
**/
private class ConnectedThread extends Thread {
private final BluetoothSocket mmSocket;
private final InputStream mmInStream;
private final OutputStream mmOutStream;
public ConnectedThread(BluetoothSocket socket) {
Log.d(TAG, "ConnectedThread: Starting.");
mmSocket = socket;
InputStream tmpIn = null;
OutputStream tmpOut = null;
//dismiss the progressdialog when connection is established
try{
mProgressDialog.dismiss();
}catch (NullPointerException e){
e.printStackTrace();
}
try {
tmpIn = mmSocket.getInputStream();
tmpOut = mmSocket.getOutputStream();
} catch (IOException e) {
e.printStackTrace();
}
mmInStream = tmpIn;
mmOutStream = tmpOut;
}
public void run(){
byte[] buffer = new byte[1024]; // buffer store for the stream
int bytes; // bytes returned from read()
// Keep listening to the InputStream until an exception occurs
while (true) {
// Read from the InputStream
try {
bytes = mmInStream.read(buffer);
String incomingMessage = new String(buffer, 0, bytes);
Log.d(TAG, "InputStream: " + incomingMessage);
} catch (IOException e) {
Log.e(TAG, "write: Error reading Input Stream. " + e.getMessage() );
break;
}
}
}
//Call this from the main activity to send data to the remote device
public void write(byte[] bytes) {
String text = new String(bytes, Charset.defaultCharset());
Log.d(TAG, "write: Writing to outputstream: " + text);
try {
mmOutStream.write(bytes);
} catch (IOException e) {
Log.e(TAG, "write: Error writing to output stream. " + e.getMessage() );
}
}
/* Call this from the main activity to shutdown the connection */
public void cancel() {
try {
mmSocket.close();
} catch (IOException e) { }
}
}
private void connected(BluetoothSocket mmSocket, BluetoothDevice mmDevice) {
Log.d(TAG, "connected: Starting.");
// Start the thread to manage the connection and perform transmissions
mConnectedThread = new ConnectedThread(mmSocket);
mConnectedThread.start();
}
/**
* Write to the ConnectedThread in an unsynchronized manner
*
* @param out The bytes to write
* @see ConnectedThread#write(byte[])
*/
public void write(byte[] out) {
// Create temporary object
ConnectedThread r;
// Synchronize a copy of the ConnectedThread
Log.d(TAG, "write: Write Called.");
//perform the write
mConnectedThread.write(out);
}
}
D/ViewRootImpl@21bc2e2[MainActivity]: ViewPostIme pointer 0
D/ViewRootImpl@21bc2e2[MainActivity]: ViewPostIme pointer 1
D/AbsListView: onTouchUp() mTouchMode : 0
D/BluetoothAdapter: cancelDiscovery
D/BluetoothAdapter: cancelDiscovery = true
D/MainActivity: onItemClick: You Clicked on a device.
D/MainActivity: onItemClick: deviceName = Dual-SPP
onItemClick: deviceAddress = 34:81:F4:40:0F:2A
Trying to pair with Dual-SPP
I/BluetoothDevice: createBond() for device 40:0 called by pid: 27565 tid: 27565
D/BluetoothConnectionServ: start
W/BluetoothAdapter: getBluetoothService() called with no BluetoothManagerCallback
D/BluetoothConnectionServ: AcceptThread: Setting up Server using: 8ce255c0-200a-11e0-ac64-0800200c9a66
D/BluetoothConnectionServ: run: AcceptThread Running.
run: RFCOM server socket start.....
D/ViewRootImpl@21bc2e2[MainActivity]: ViewPostIme pointer 0
D/ViewRootImpl@21bc2e2[MainActivity]: ViewPostIme pointer 1
D/MainActivity: startBTConnection: Initializing RFCOM Bluetooth Connection.
D/BluetoothConnectionServ: startClient: Started.
D/ScrollView: initGoToTop
D/ScrollView: initGoToTop
D/ViewRootImpl@fcf1c11[Connecting Bluetooth]: setView = DecorView@be25176[Connecting Bluetooth] TM=true MM=false
D/BluetoothConnectionServ: ConnectThread: started.
I/BluetoothConnectionServ: RUN mConnectThread
D/BluetoothConnectionServ: ConnectThread: Trying to create InsecureRfcommSocket using UUID: 8ce255c0-200a-11e0-ac64-0800200c9a66
D/ViewRootImpl@fcf1c11[Connecting Bluetooth]: dispatchAttachedToWindow
D/BluetoothAdapter: cancelDiscovery
D/BluetoothAdapter: cancelDiscovery = true
D/BluetoothUtils: isSocketAllowedBySecurityPolicy start : device null
W/BluetoothAdapter: getBluetoothService() called with no BluetoothManagerCallback
V/Surface: sf_framedrop debug : 0x4f4c, game : false, logging : 0
D/ViewRootImpl@fcf1c11[Connecting Bluetooth]: Relayout returned: old=[0,0][0,0] new=[23,790][1057,1349] result=0x7 surface={valid=true 524643803136} changed=true
D/OpenGLRenderer: eglCreateWindowSurface = 0x7a27b171e0
D/ViewRootImpl@fcf1c11[Connecting Bluetooth]: MSG_WINDOW_FOCUS_CHANGED 1
D/ViewRootImpl@fcf1c11[Connecting Bluetooth]: MSG_RESIZED_REPORT: frame=Rect(23, 790 - 1057, 1349) ci=Rect(0, 0 - 0, 0) vi=Rect(0, 0 - 0, 0) or=1
D/ViewRootImpl@21bc2e2[MainActivity]: MSG_WINDOW_FOCUS_CHANGED 0
D/BluetoothSocket: close() this: android.bluetooth.BluetoothSocket@3daba6f, channel: -1, mSocketIS: android.net.LocalSocketImpl$SocketInputStream@9c9637c, mSocketOS: android.net.LocalSocketImpl$SocketOutputStream@4f75405mSocket: android.net.LocalSocket@9c67c5a impl:android.net.LocalSocketImpl@b028e8b fd:java.io.FileDescriptor@2073b68, mSocketState: INIT
D/BluetoothConnectionServ: run: Closed Socket.
D/BluetoothConnectionServ: run: ConnectThread: Could not connect to UUID: 8ce255c0-200a-11e0-ac64-0800200c9a66
connected: Starting.
ConnectedThread: Starting.
D/BluetoothUtils: isSocketAllowedBySecurityPolicy start : device null
D/BluetoothUtils: isSocketAllowedBySecurityPolicy start : device null
D/OpenGLRenderer: eglDestroySurface = 0x7a27b171e0
D/ViewRootImpl@fcf1c11[Connecting Bluetooth]: dispatchDetachedFromWindow
D/InputEventReceiver: channel '48033aa Connecting Bluetooth (client)' ~ Disposing input event receiver.
D/InputEventReceiver: channel '48033aa Connecting Bluetooth (client)' ~NativeInputEventReceiver.
D/ViewRootImpl@21bc2e2[MainActivity]: MSG_WINDOW_FOCUS_CHANGED 1
E/ViewRootImpl: sendUserActionEvent() returned.
E/BluetoothConnectionServ: write: Error reading Input Stream. socket closed