【发布时间】：2012-01-04 00:52:15
【问题描述】：
我正在使用 BluetoothChat 示例 (3.1) 代码示例来测试两个三星 Galaxy Tab 之间的通信。我知道这已经被问过很多次了，但是当我这样做时我仍然感到困惑：
BluetoothSocket mmSocket
...
mmSocket.connect();
这会导致连接被拒绝。我已经多次尝试在程序内外配对和取消配对，但没有任何结果。有人有什么想法吗？
更新（从答案中添加）：
客户端和服务器中的代码是相同的。这些实际上是两个三星 Galaxy Tabs (3.1)。尝试连接到远程设备时发生错误。
public ConnectThread(BluetoothDevice device, boolean secure) {
mmDevice = device;
BluetoothSocket tmp = null;
mSocketType = secure ? "Secure" : "Insecure";
// Get a BluetoothSocket for a connection with the
// given BluetoothDevice
try {
if (secure) {
//tmp = device.createRfcommSocketToServiceRecord(
//MY_UUID_SECURE);
// tmp = device.createRfcommSocketToServiceRecord(
// UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"));
Method m = device.getClass().getMethod("createRfcommSocket", new Class[] {int.class});
tmp = (BluetoothSocket) m.invoke(device, 1);
} else {
Method m = device.getClass().getMethod("createInsecureRfcommSocketToServiceRecord", new Class[] {int.class});
tmp = (BluetoothSocket)m.invoke(device, UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"));
}
} catch (Exception e) {
Log.e(TAG, "Socket Type: " + mSocketType + "create() failed", e);
}
mmSocket = tmp;
}
public void run() {
Log.i(TAG, "BEGIN mConnectThread SocketType:" + mSocketType);
setName("ConnectThread" + mSocketType);
// Always cancel discovery because it will slow down a connection
mAdapter.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 (IOException e) {
// Close the socket
try {
Log.e("Ali", "Error interacting with remote device. Here is the cause: "+ e.getMessage() );
mmSocket.close();
} catch (IOException e2) {
Log.e(TAG, "unable to close() " + mSocketType +
" socket during connection failure", e2);
}
connectionFailed();
return;
}
// Reset the ConnectThread because we're done
synchronized (BluetoothChatService.this) {
mConnectThread = null;
}
// Start the connected thread
connected(mmSocket, mmDevice, mSocketType);
}
听力部分如下：
private class AcceptThread extends Thread {
// The local server socket
private final BluetoothServerSocket mmServerSocket;
private String mSocketType;
public AcceptThread(boolean secure) {
BluetoothServerSocket tmp = null;
mSocketType = secure ? "Secure":"Insecure";
// Create a new listening server socket
try {
if (secure) {
tmp = mAdapter.listenUsingRfcommWithServiceRecord(NAME_SECURE,UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"));
} else {
tmp = mAdapter.listenUsingInsecureRfcommWithServiceRecord(
NAME_INSECURE, UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"));
}
} catch (IOException e) {
Log.e(TAG, "Socket Type: " + mSocketType + "listen() failed", e);
}
mmServerSocket = tmp;
}
public void run() {
if (D) Log.d(TAG, "Socket Type: " + mSocketType +
"BEGIN mAcceptThread" + this);
setName("AcceptThread" + mSocketType);
BluetoothSocket socket = null;
// Listen to the server socket if we're not connected
while (mState != STATE_CONNECTED) {
try {
// This is a blocking call and will only return on a
// successful connection or an exception
socket = mmServerSocket.accept();
} catch (IOException e) {
Log.e("Ali", "Error while connecting to device because: "+ e.getStackTrace());
break;
}
// If a connection was accepted
if (socket != null) {
synchronized (BluetoothChatService.this) {
switch (mState) {
case STATE_LISTEN:
case STATE_CONNECTING:
// Situation normal. Start the connected thread.
connected(socket, socket.getRemoteDevice(),
mSocketType);
break;
case STATE_NONE:
case STATE_CONNECTED:
// Either not ready or already connected. Terminate new socket.
try {
socket.close();
} catch (IOException e) {
Log.e(TAG, "Could not close unwanted socket", e);
}
break;
}
}
}
}
if (D) Log.i(TAG, "END mAcceptThread, socket Type: " + mSocketType);
}
你终于有了 logcat：
- 01-05 10:34:07.749: E/BluetoothChat(22495): +++ ON CREATE +++ 01-05
- 10:34:07.779: E/BluetoothChat(22495): ++ ON START ++ 01-05
- 10:37:41.109: E/BluetoothChat(22599): ++ ON START ++ 01-05
- 10:37:50.009: D/BluetoothChat(22599): onActivityResult -1 01-05
- 10:37:50.009：D/BluetoothChatService(22599)：连接到：
- 60:D0:A9:85:AE:6A 01-05 10:37:50.009: D/BluetoothChatService(22599):
- setState() 1 -> 2 01-05 10:37:50.009: E/BluetoothChat(22599): + ON
- 恢复 + 01-05 10:37:50.029：I/BluetoothChatService(22599)：开始
- mConnectThread SocketType:Secure 01-05 10:37:50.029:
- I/BluetoothChat(22599)：MESSAGE_STATE_CHANGE：2 01-05 10:37:55.169：
- E/Ali(22599)：与远程设备交互时出错。原因如下：Host is down 01-05 10:37:55.169:
- D/BluetoothChatService(22599)：开始 01-05 10:37:55.169:
- D/BluetoothChatService(22599): setState() 2 -> 1 01-05 10:37:55.189:
- I/BluetoothChat(22599)：MESSAGE_STATE_CHANGE：1 01-05 10:37:55.219：
- D/dalvikvm(22599)：GC_CONCURRENT 释放 171K，4% 释放 6522K/6791K，暂停 2ms+3ms 01-05 10:38:02.749：
- W/PhoneWindow(22599)：无法获取音频管理器 01-05 10:38:04.969：
- E/BluetoothChat(22599): - 暂停 - 01-05 10:38:04.989:
- I/ApplicationPackageManager(22599)：cscCountry 不是德语：TPH 01-05 10:38:07.059：
- D/DeviceListActivity(22599): doDiscovery() 01-05 10:38:10.609:
- D/BluetoothChat(22599):onActivityResult -1 01-05 10:38:10.609:
- D/BluetoothChatService(22599)：连接到：F0:08:F1:5E:51:67 01-05 10:38:10.609:
- D/BluetoothChatService(22599): setState() 1 -> 2 01-05 10:38:10.609:
- E/BluetoothChat(22599): + ON RESUME + 01-05 10:38:10.609:
- I/BluetoothChatService(22599): BEGIN mConnectThread SocketType:Secure 01-05 10:38:10.629:
- I/BluetoothChat(22599)：MESSAGE_STATE_CHANGE：2 01-05 10:38:12.089：
- E/BluetoothChat(22599): - 暂停 - 01-05 10:38:12.329:
- D/CLIPBOARD(22599)：在开始输入时隐藏剪贴板对话框：由其他人完成...！ 01-05 10:38:12.339:
- W/IInputConnectionWrapper(22599)：非活动 InputConnection 上的 showStatusIcon 01-05 10:38:19.589：
- E/BluetoothChat(22599):+ ON RESUME + 01-05 10:38:20.799:
- E/Ali(22599)：与远程设备交互时出错。原因如下：连接被拒绝 01-05 10:38:20.799:
- D/BluetoothChatService(22599)：开始 01-05 10:38:20.799:
- D/BluetoothChatService(22599): setState() 2 -> 1 01-05 10:38:20.799:
- I/BluetoothChat(22599)：MESSAGE_STATE_CHANGE：1 01-05 10:39:23.489：
- E/BluetoothChat(22599)：- 暂停 -
【问题讨论】：
-
请发布相关代码 - 服务器和客户端。还会记录错误..