Java Android蓝牙通信不工作
问候 我有Micromax A110安卓操作系统4.0.4和三星galaxy pop安卓操作系统2.2.1 从sdk下载bluetoothchat示例并尝试运行它 当我试图从micromax连接到三星时,它抛出异常消息e.getMessage 连接:未创建连接失败或中止 当我尝试从三星连接到micromax时,它说Java Android蓝牙通信不工作,java,android,bluetooth,chat,Java,Android,Bluetooth,Chat,问候 我有Micromax A110安卓操作系统4.0.4和三星galaxy pop安卓操作系统2.2.1 从sdk下载bluetoothchat示例并尝试运行它 当我试图从micromax连接到三星时,它抛出异常消息e.getMessage 连接:未创建连接失败或中止 当我尝试从三星连接到micromax时,它说 "Service discovery failed" 现在我将UUID更改为 私有静态最终UUID MY_UUID=UUID.fromStringFafa-afac-11de-8a
"Service discovery failed"
现在我将UUID更改为
私有静态最终UUID MY_UUID=UUID.fromStringFafa-afac-11de-8a39-0800200c9a66
现在micromax向三星发送相同的异常消息
连接:未创建连接失败或中止。
但三星表示,将向micromax进军
拒绝连接
然后我换了线
tmp = device.createRfcommSocketToServiceRecord(MY_UUID);
到
根据stackoverflow中的信息
现在
现在micromax向三星发送相同的异常消息
连接:未创建连接失败或中止
但三星向micromax表示
已连接,当我键入一些消息时,它会发送到micromax
但micromax端未播放消息,仍在等待客户端连接
socket=mmServerSocket.accept
我不明白发生了什么事。有趣的是,它和以前的工作原理是一样的
大约一年前。不知道这些手机上发生了什么软件升级
请告诉我可能有什么问题
来自示例的代码
通过micromax A110的出厂重置解决了此问题通过micromax画布的出厂重置解决了此问题
tmp = device.createRfcommSocketToServiceRecord(MY_UUID);
Method m;
m = device.getClass().getMethod("createRfcommSocket", new Class[] {int.class});
tmp = (BluetoothSocket) m.invoke(device, 1);
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 = mAdapter.listenUsingRfcommWithServiceRecord(NAME, MY_UUID);
} catch (IOException e) {
Log.e(TAG, "listen() failed", e);
}
mmServerSocket = tmp;
}
public void run() {
if (D) Log.d(TAG, "BEGIN mAcceptThread" + this);
setName("AcceptThread");
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(TAG, "accept() failed", e);
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());
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");
}
public void cancel() {
if (D) Log.d(TAG, "cancel " + this);
try {
mmServerSocket.close();
} catch (IOException e) {
Log.e(TAG, "close() of server failed", e);
}
}
}
/**
* 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 final BluetoothSocket mmSocket;
private final BluetoothDevice mmDevice;
public ConnectThread(BluetoothDevice device) {
mmDevice = device;
BluetoothSocket tmp = null;
// Get a BluetoothSocket for a connection with the
// given BluetoothDevice
try {
tmp = device.createRfcommSocketToServiceRecord(MY_UUID);
Method m;
m = device.getClass().getMethod("createRfcommSocket", new Class[] {int.class});
tmp = (BluetoothSocket) m.invoke(device, 1);
} catch (IOException e) {
e.printStackTrace();
}
catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
mmSocket = tmp;
}
public void run() {
Log.i(TAG, "BEGIN mConnectThread");
setName("ConnectThread");
// 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) {
connectionFailed();
// Close the socket
try {
mmSocket.close();
} catch (IOException e2) {
Log.e(TAG, "unable to close() socket during connection failure", e2);
}
// Start the service over to restart listening mode
BluetoothChatService.this.start();
return;
}
// Reset the ConnectThread because we're done
synchronized (BluetoothChatService.this) {
mConnectThread = null;
}
// Start the connected thread
connected(mmSocket, mmDevice);
}
public void cancel() {
try {
mmSocket.close();
} catch (IOException e) {
Log.e(TAG, "close() of connect socket failed", e);
}
}
}