Question

我在Android 2.1中看到它突出了它所说的新平台支持：“蓝牙2.1，新BT配置文件：对象推送配置文件（OPP）和电话簿访问配置文件（PBAP）”。现在我有支持OPP的蓝牙adpater。我可以搜索并配对它。但是我如何获得它发送给我的txt文件。此功能没有API。我正在使用BluetoothChat示例代码，如下所示。但代码是阻止的 “bytes = mmInStream.read（buffer）;”。没有任何反应。为什么？没收到什么？

private class ConnectedThread extends Thread {
    private final BluetoothSocket mmSocket;
    private final InputStream mmInStream;
    private final OutputStream mmOutStream;

    public ConnectedThread(BluetoothSocket socket) {
        Log.d(TAG, "create ConnectedThread");
        mmSocket = socket;
        InputStream tmpIn = null;
        OutputStream tmpOut = null;

        // Get the BluetoothSocket input and output streams
        try {
            tmpIn = socket.getInputStream();
            tmpOut = socket.getOutputStream();
        } catch (IOException e) {
            Log.e(TAG, "temp sockets not created", e);
        }

        mmInStream = tmpIn;
        mmOutStream = tmpOut;
    }

    public void run() {
        Log.i(TAG, "BEGIN mConnectedThread");
        byte[] buffer = new byte[1024];
        int bytes;

        // Keep listening to the InputStream while connected
        while (true) {
            try {
                // Read from the InputStream
                bytes = mmInStream.read(buffer);

                // Send the obtained bytes to the UI Activity
                mHandler.obtainMessage(BluetoothChat.MESSAGE_READ, bytes, -1, buffer)
                        .sendToTarget();
            } catch (IOException e) {
                Log.e(TAG, "disconnected", e);
                connectionLost();
                break;
            }
        }
    }

    /**
     * Write to the connected OutStream.
     * @param buffer  The bytes to write
     */
    public void write(byte[] buffer) {
        try {
            mmOutStream.write(buffer);

            // Share the sent message back to the UI Activity
            mHandler.obtainMessage(BluetoothChat.MESSAGE_WRITE, -1, -1, buffer)
                    .sendToTarget();
        } catch (IOException e) {
            Log.e(TAG, "Exception during write", e);
        }
    }

    public void cancel() {
        try {
            mmSocket.close();
        } catch (IOException e) {
            Log.e(TAG, "close() of connect socket failed", e);
        }
    }
}

Answer 1

据我所知，Android API为开发人员提供了OPP和PBAP功能。

他们所做的是将这些配置文件实现为应用程序，并将其与平台一起发布。您可以在设备中看到正在运行OPP和PBAP服务，因此他们将接受并处理外部连接，而不是您的应用程序。

我提到的这些应用程序的源代码可在此处获得：
https://android.googlesource.com/platform/packages/apps/Bluetooth

如何使用对象推送协议连接蓝牙适配器？

1 个答案: