在android中通过蓝牙传输文件音频/文本

Question

我正在尝试使用RFCOM服务器套接字通过蓝牙发送任何文本或图像/音频文件。我使用以下代码

send.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                checkBTPermissions();

               // byte[] bytes = etSend.getText().toString().getBytes(Charset.defaultCharset());
               // mBluetoothConnection.write(bytes);
               file_permission();

               // byte[] bytes = etSend.getText().toString().getBytes(Charset.defaultCharset());
                File myfile = new File("/sdcard/bluetooth/tom.txt");
                byte[] bytes= new byte[(int)myfile.length()];

                Log.d(TAG,"file length() =" + (int)myfile.length());
                try {
                    FileInputStream fis = new FileInputStream(myfile);
                    BufferedInputStream bis = new BufferedInputStream(fis,(int)myfile.length());

                    //bis.read(bytes,0,bytes.length);

                    Log.d(TAG,"fis created");
                    // FileInputStream
                    mBluetoothConnection.write(bytes);
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }

            }
        });

在这里，我能够发送我的文本文件的内容，甚至能够接收。 接收者代码：

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;
                }
            }
        }

我的问题如何将我的文件作为一个整体发送到接收器并接收并保存？。在各种教程中我只发现如何通过蓝牙发送文本。请帮忙。