Question

我正在尝试创建一个扫描蓝牙耳机的简单程序（我正在使用PS3耳机测试），然后连接到它。我正在使用bluetooth chat program example中的代码。但是，我不能让它连接到任何东西。当它到达connect（）时，它给我一个I / O异常。

private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");

尝试与设备建立传出连接时，此线程会运行。它直接通过;连接成功或失败。

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);
        } catch (IOException e) {
            Log.e(TAG, "create() failed", e);
        }
        if (tmp == null){
            Log.i(TAG, "tmp is NULL");
        }
        mmSocket = tmp;
    }

    public void run() {
        Log.i(TAG, "BEGIN mConnectThread");
        setName("ConnectThread");

        // Always cancel discovery because it will slow down a connection
        mAdapter.cancelDiscovery();
        Log.i(TAG, "discovery is cancelled");

        // 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();  //Doesn't like something here???
        } catch (IOException e) {
            Log.e(TAG, "IO error, ", 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
            newTBluetoothService.this.start();
            return;
        }

        // Reset the ConnectThread because we're done
        synchronized (newBluetoothService.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);
        }
    }
}

这是logcat：

10-13 16:07:45.544: ERROR/BluetoothService.cpp(1259): 
stopDiscoveryNative: D-Bus error in StopDiscovery: org.bluez.Error.Failed (Invalid discovery session)

10-13 16:07:45.544: DEBUG/newBluetoothService(2821): connect to: 00:22:A6:07:12:2B

10-13 16:07:45.544: DEBUG/newBluetoothService(2821): setState() 0 -> 2

10-13 16:07:45.552: INFO/newBluetoothService(2821): BEGIN mConnectThread

10-13 16:07:45.567: ERROR/BluetoothService.cpp(1259): stopDiscoveryNative: D-Bus error in StopDiscovery: org.bluez.Error.Failed (Invalid discovery session)

10-13 16:07:45.567: INFO/newBluetoothService(2821): discovery is cancelled

10-13 16:07:45.575: ERROR/BluetoothEventLoop.cpp(1259): onCreateDeviceResult: D-Bus error: org.bluez.Error.AlreadyExists (Device already exists)

10-13 16:07:45.583: INFO/BluetoothNew(2821): MESSAGE_STATE_CHANGE: 2

10-13 16:07:46.700: ERROR/BluetoothEventLoop.cpp(1259): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/2872/hci0/dev_00_22_A6_07_12_2B

10-13 16:07:47.036: DEBUG/BluetoothService(1259): updateDeviceServiceChannelCache(00:22:A6:07:12:2B)

10-13 16:07:47.059: DEBUG/BluetoothService(1259):     uuid(system): 0000111e-0000-1000-8000-00805f9b34fb 1

10-13 16:07:47.067: DEBUG/BluetoothService(1259):     uuid(system): 00001108-0000-1000-8000-00805f9b34fb 2

10-13 16:07:47.075: VERBOSE/BluetoothEventRedirector(1786): Received android.bleutooth.device.action.UUID

10-13 16:07:47.075: DEBUG/BluetoothService(1259): Cleaning up failed UUID channel lookup: 00:22:A6:07:12:2B 00001101-0000-1000-8000-00805f9b34fb

10-13 16:07:47.083: ERROR/newBluetoothService(2821): IO error, 

10-13 16:07:47.083: ERROR/newBluetoothService(2821): java.io.IOException: Service discovery failed

10-13 16:07:47.083: ERROR/newBluetoothService(2821):     at android.bluetooth.BluetoothSocket$SdpHelper.doSdp(BluetoothSocket.java:377)

10-13 16:07:47.083: ERROR/newBluetoothService(2821):     at android.bluetooth.BluetoothSocket.connect(BluetoothSocket.java:201)

10-13 16:07:47.083: ERROR/newBluetoothService(2821):     at com.nmtransfer.bluetooth.newBluetoothService$ConnectThread.run(newBluetoothService.java:347)

10-13 16:07:47.083: INFO/newBluetoothService(2821): Connection Failed

10-13 16:07:47.083: DEBUG/newBluetoothService(2821): setState() 2 -> 1

10-13 16:07:47.083: DEBUG/newBluetoothService(2821): start

10-13 16:07:47.083: INFO/BluetoothNew(2821): MESSAGE_STATE_CHANGE: 1

10-13 16:07:47.098: DEBUG/BluetoothService(1259): new handle 1000d

10-13 16:07:47.106: DEBUG/newBluetoothService(2821): setState() 1 -> 1

10-13 16:07:47.106: DEBUG/newBluetoothService(2821): BEGIN mAcceptThreadThread[Thread-
13,5,main]

10-13 16:07:47.114: INFO/BluetoothNew(2821): MESSAGE_STATE_CHANGE: 1

10-13 16:07:51.036: ERROR/BluetoothEventLoop.cpp(1259): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/2872/hci0/dev_00_22_A6_07_12_2B

10-13 16:07:53.583: VERBOSE/BluetoothEventRedirector(1786): Received android.bleutooth.device.action.UUID

非常感谢任何帮助。

谢谢克里斯

Answer 1

@CHRIS嘿，我其实只是想出了问题。您使用connectThread敲击了头部，但是您需要使用UUID（“00001108-0000-1000-8000-00805F9B34FB”）作为耳机配置文件。我正在使用Jabra耳机，它对我有用。如果您有疑问，请告诉我！谢谢！

Answer 2

我认为您不应该将特定的UUID指定为连接参数，除非您知道这是您的耳机提供的确切GUID。我不确定。但我希望它可以帮助你。

祝你好运！

花式

Answer 3

我正在研究类似的问题...... - 如何通过APP连接耳机配置文件。然后我在这里看到了这个答案： https://stackoverflow.com/a/5711736/769556

基本上，此耳机级别配置文件连接由内部完成 Android（并且没有建立应用程序级别的访问权限连接）

所以...... @ Chris Mattmiller你找到了不同的答案吗？

连接/配对蓝牙耳机和Android

3 个答案: