Android 请帮助：从缓冲区提取数据（蓝牙和处理程序与EditText有关的问题）？

我正在使用蓝牙串行数据

信息被“捕获”在缓冲区中，我无法用编辑文本在屏幕上显示它

04-16 13:58:28.483: I/debugging(2380): Receiving Data
04-16 13:58:28.484: I/debugging(2380): run success
04-16 13:58:28.487: I/debugging(2380): buffer read OK

六角形

ASCII码：

04-16 13:58:28.492: I/debugging(2380): ??0183600NEWDEVICE
04-16 13:58:28.492: I/debugging(2380): 0147900:4239
04-16 13:58:28.492: I/debugging(2380): 0147901:0200
04-16 13:58:28.492: I/debugging(2380): 0147902:2971
04-16 13:58:28.492: I/debugging(2380): 0157903:01598
04-16 13:58:28.492: I/debugging(2380): 0157904:02754
04-16 13:58:28.492: I/debugging(2380): 0157905:03383
04-16 13:58:28.492: I/debugging(2380): 0157906:02590
04-16 13:58:28.492: I/debugging(2380): 0187908:04.02.01
04-16 13:58:28.492: I/debugging(2380): 0157909:19.45
04-16 13:58:28.492: I/debugging(2380): 0117911:0
04-16 13:58:28.492: I/debugging(2380): 0098540
04-16 13:58:28.492: I/debugging(2380): ??????????????????????????????????????????????????????????????????????????????????????????? ?????????????????????????????????????????????????????????????

之后，应用程序崩溃，显示奇怪的消息（我摘录）：

我使用的是典型的处理程序：

Handler mHandler = new Handler(){
    public void handleMessage(Message msg) {
        Log.i(tag,"in handler");
        super.handleMessage(msg);
        switch(msg.what){
        case SUCCESS_CONNECT:


            mTextView.setText("PACO",TextView.BufferType.EDITABLE);
          //DO SOMETHING
            ConnectedThread connectedThread = new ConnectedThread((BluetoothSocket)msg.obj);
            Toast.makeText(getApplicationContext(), "Conectar", Toast.LENGTH_SHORT).show();
            String s = "conectado con Éxito";
            connectedThread.write(s.getBytes());
            Log.i(tag,"connected");
            byte[] iniciar = new byte[]{(byte)0x05};
            // B01/n en Hexadecimal (Introducir para que Espirómetro envíe datos
            byte [] datos = new byte[] {(byte)0x42, (byte)0x30, (byte)0x31, (byte)0x0D};
            //byte [] datos = new byte[] {(byte)0x43, (byte)0x0D};
            connectedThread.write(iniciar);
            Log.i(tag, "waiting for commands");
            Log.i(tag, convertToHex(datos));
            //Get Data
            connectedThread.write (datos);
            Log.i(tag,"Receiving Data");
            connectedThread.run(); 
            //connectedThread.cancel();
            break;

        case MESSAGE_READ:
            Log.i(tag,"He estado aquí2");
            byte[] readBuf = (byte[])msg.obj;
            /*
            String string = new String(readBuf);
            Log.i(tag, string);
            Toast.makeText(getApplicationContext(), string, Toast.LENGTH_SHORT).show();
            */
            Log.i(tag,"He estado aquí");
            String readMessage = new String(readBuf, 0, msg.arg1);
            mTextView.setText(readMessage);
            //added by AMJ in attempt to display variable in textview

            break;
        }

    }
};

以及典型的ConnectedThread：

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

    public ConnectedThread(BluetoothSocket socket) {
        mmSocket = socket;
        InputStream tmpIn = null;
        OutputStream tmpOut = null;

        // Get the input and output streams, using temp objects because
        // member streams are final
        try {
            tmpIn = socket.getInputStream();
            tmpOut = socket.getOutputStream();
        } catch (IOException e) { }

        mmInStream = tmpIn;
        mmOutStream = tmpOut;
    }

    public void run() {


        Log.i(tag, "run success");
        byte[] buffer;
        int bytes; // bytes returned from read() 

        // Keep listening to the InputStream until an exception occurs 
        while (true) {
            try {
                // Read from the InputStream 
                buffer = new byte [256];
                bytes = mmInStream.read(buffer);
                Log.i(tag, "buffer read OK");
                // Send the obtained bytes to the UI activity 
                Log.i(tag, convertToHex(buffer));             
                Log.i(tag, hexToAscii(convertToHex(buffer)));
                mHandler.obtainMessage(MESSAGE_READ, bytes, -1, buffer).sendToTarget();
            }catch (IOException e) {
                e.printStackTrace();
                Log.i(tag, "buffer read failed");
                System.out.print("read error"); 
                break;
            }
        }           

    }

    /* Call this from the main activity to send data to the remote device */
    public void write(byte[] bytes) {
        try {
            mmOutStream.write(bytes);
        } catch (IOException e) { }
    }

    /* Call this from the main activity to shutdown the connection */
    public void cancel() {
        try {
            mmSocket.close();
        } catch (IOException e) { }
    }
}

}

---

谢谢你的帮助

每次开始读取时，我都会停止分配缓冲区。 如果您以前的邮件被随机垃圾收集怎么办

所以删除

buffer = new byte [256];

然后，要使其在连续读取期间仍能工作，请更换

mHandler.obtainMessage(MESSAGE_READ, bytes, -1, buffer).sendToTarget();
with
mHandler.obtainMessage(MESSAGE_READ, bytes, -1, buffer.clone()).sendToTarget();

---

你能把你的全部源代码寄给我吗？我可以看一看。

我该怎么办？我是否在私人信息中向您发送我的代码？或者在这里发布？给我发电子邮件@rsavutiu@gmail.com. 同时发送有关应用程序、如何测试等的说明。问题是，要测试应用程序，您需要“Ashtma Monitor”肺活量计：（别担心，我们可以找到其他设备来传输数据。事实上，我建议您再次阅读BluetoothChat，尝试执行他们的操作。但是，如果您愿意，请通过Github或其他方式将代码发送给我，我可以调试它。

buffer = new byte [256];

mHandler.obtainMessage(MESSAGE_READ, bytes, -1, buffer).sendToTarget();
with
mHandler.obtainMessage(MESSAGE_READ, bytes, -1, buffer.clone()).sendToTarget();