Android 蓝牙日志记录填满 logcat

Question

我以蓝牙聊天示例为起点，实现了从我的手机到嵌入式设备的 BT 连接。我能够成功连接到设备，但是一旦建立连接，logcat 就会被大量日志记录所淹没。第一次使用 BT 聊天应用程序进行电话对电话时，我没有看到这种类型的日志记录。

这是一遍遍重复的内容。它基本上使 logcat 无法使用。到目前为止，我还没有找到配置日志记录的方法或为什么它记录这么多。任何见解将不胜感激。

03-08 14:29:04.941: DEBUG/BluetoothSocket.cpp(11422): availableNative
03-08 14:29:04.957: DEBUG/BluetoothSocket(11422): available
03-08 14:29:04.957: DEBUG/BluetoothSocket.cpp(11422): availableNative
03-08 14:29:04.971: DEBUG/BluetoothSocket(11422): available
03-08 14:29:04.976: DEBUG/BluetoothSocket.cpp(11422): availableNative
03-08 14:29:04.989: DEBUG/BluetoothSocket(11422): available
03-08 14:29:04.991: DEBUG/BluetoothSocket.cpp(11422): availableNative
03-08 14:29:05.016: DEBUG/BluetoothSocket(11422): available
03-08 14:29:05.016: DEBUG/BluetoothSocket.cpp(11422): availableNative
03-08 14:29:05.034: DEBUG/BluetoothSocket(11422): available
03-08 14:29:05.036: DEBUG/BluetoothSocket.cpp(11422): availableNative
03-08 14:29:05.050: DEBUG/BluetoothSocket(11422): available
03-08 14:29:05.051: DEBUG/BluetoothSocket.cpp(11422): availableNative
03-08 14:29:05.066: DEBUG/BluetoothSocket(11422): available
03-08 14:29:05.066: DEBUG/BluetoothSocket.cpp(11422): availableNative
03-08 14:29:05.081: DEBUG/BluetoothSocket(11422): available
03-08 14:29:05.081: DEBUG/BluetoothSocket.cpp(11422): availableNative
03-08 14:29:05.086: DEBUG/(2419): jw_if_rfcomm_cl_cback: jw_if_rfcomm_cl_cback event=BTA_JV_RFCOMM_READ_EVT
03-08 14:29:05.086: DEBUG/(2419): jv_forward_data_to_jni: BTA_JV_RFCOMM_DATA_IND_EVT bta hdl 2
03-08 14:29:05.086: DEBUG/(2419): bts_log_tstamps_us: [update stats] ts    1263504, bta hdl 2, diff 01263504, tx_q 1 (1), rx_q 0 (0)
03-08 14:29:05.086: DEBUG/BLZ20_WRAPPER(11422): blz20_wrp_poll: transp poll : (fd 41) returned r_ev [POLLIN ] (0x1)
03-08 14:29:05.086: DEBUG/BLZ20_WRAPPER(11422): blz20_wrp_poll: return 1
03-08 14:29:05.086: DEBUG/BLZ20_WRAPPER(11422): blz20_wrp_read: read 122 bytes out of 1024 on fd 41
03-08 14:29:05.101: DEBUG/BluetoothSocket(11422): read
03-08 14:29:05.101: DEBUG/BluetoothSocket.cpp(11422): readNative
03-08 14:29:05.101: DEBUG/ASOCKWRP(11422): asocket_read
03-08 14:29:05.106: INFO/BLZ20_WRAPPER(11422): blz20_wrp_poll: nfds 2, timeout -1 ms
03-08 14:29:05.117: DEBUG/BluetoothSocket(11422): available
03-08 14:29:05.121: DEBUG/BluetoothSocket.cpp(11422): availableNative

Answer 1

玩完我的 Arduino 开发板 + 蓝牙适配器后，我尝试实现来自 MATT BELL'S BLOG 的蓝牙代码.问题是以下代码:

//final Handler handler = new Handler();
workerThread = new Thread(new Runnable()
{
    public void run()
    {
        while(!Thread.currentThread().isInterrupted() && !stopWorker)
        {
            try {
                int bytesAvailable = mmInputStream.available();
                if(bytesAvailable > 0)
                {
                    //Log.d(TAG,"bytesAvailable: "+bytesAvailable + " readBufferPosition: "+readBufferPosition);
                    byte[] packetBytes = new byte[bytesAvailable];
                    mmInputStream.read(packetBytes);

                    for(int i=0;i<bytesAvailable;i++)
                    {
                        byte delimiter = 0x0A;     // /n bzw. LF
                        byte b = packetBytes[i];
                        if(b == delimiter)
                        {
                            byte[] encodedBytes = new byte[readBufferPosition];
                            System.arraycopy(readBuffer, 0, encodedBytes, 0, encodedBytes.length);
                            final String data = new String(encodedBytes, "US-ASCII");
                            //final String data = new String(readBuffer);
                            readBufferPosition = 0;

                            Log.d(TAG,""+data);

//                                            //The variable data now contains our full command
//                                            handler.post(new Runnable()
//                                            {
//                                                public void run()
//                                                {
//                                                    //myLabel.setText(data);
//                                                    Log.d(TAG,""+data);
//                                                }
//                                            });
                        }
                        else
                        {
                            readBuffer[readBufferPosition++] = b;
                        }
                    }
                }
            } catch (Exception e) {
                Log.d(TAG,"Exeption 2: "+e.getMessage());
                stopWorker = true;
            }
        }
    }
});
workerThread.start();

调用以下函数会在 logCat 中产生大量垃圾邮件

int bytesAvailable = mmInputStream.available();

LogCat:

PS:时间戳实际上是固定版本的。不使用修复程序将导致每 5 毫秒 发送一次垃圾邮件，有效地阻止我的整个日志

03-17 18:43:06.615: VERBOSE/BluetoothSocket.cpp(8871): availableNative
03-17 18:43:06.715: VERBOSE/BluetoothSocket.cpp(8871): availableNative
03-17 18:43:06.820: VERBOSE/BluetoothSocket.cpp(8871): availableNative
03-17 18:43:06.920: VERBOSE/BluetoothSocket.cpp(8871): availableNative
03-17 18:43:07.020: VERBOSE/BluetoothSocket.cpp(8871): availableNative
03-17 18:43:07.120: VERBOSE/BluetoothSocket.cpp(8871): availableNative
03-17 18:43:07.220: VERBOSE/BluetoothSocket.cpp(8871): availableNative
03-17 18:43:07.320: VERBOSE/BluetoothSocket.cpp(8871): availableNative
03-17 18:43:07.420: VERBOSE/BluetoothSocket.cpp(8871): availableNative
03-17 18:43:07.520: VERBOSE/BluetoothSocket.cpp(8871): availableNative
03-17 18:43:07.620: VERBOSE/BluetoothSocket.cpp(8871): availableNative
03-17 18:43:07.725: VERBOSE/BluetoothSocket.cpp(8871): availableNative
03-17 18:43:07.825: VERBOSE/BluetoothSocket.cpp(8871): availableNative
03-17 18:43:07.925: VERBOSE/BluetoothSocket.cpp(8871): availableNative
03-17 18:43:08.025: VERBOSE/BluetoothSocket.cpp(8871): availableNative

我目前的解决方法是在 while 循环的末尾添加以下代码，从而减少垃圾邮件。

try {
Thread.sleep(100);
} catch (Exception e) {
Log.d(TAG,"Exception Thread.sleep()");
}

我希望这能帮助一些有类似问题的人。

编辑:目前我不得不将 sleep 定时器减少到 10ms bam .. SPAM

03-18 15:50:18.470: VERBOSE/BluetoothSocket.cpp(3482): availableNative
03-18 15:50:18.470: VERBOSE/BluetoothSocket.cpp(3482): availableNative
03-18 15:50:18.470: VERBOSE/BluetoothSocket.cpp(3482): availableNative
03-18 15:50:18.470: VERBOSE/BluetoothSocket.cpp(3482): availableNative
03-18 15:50:18.470: VERBOSE/BluetoothSocket.cpp(3482): availableNative
03-18 15:50:18.470: VERBOSE/BluetoothSocket.cpp(3482): availableNative
03-18 15:50:18.470: VERBOSE/BluetoothSocket.cpp(3482): availableNative
03-18 15:50:18.470: VERBOSE/BluetoothSocket.cpp(3482): availableNative
03-18 15:50:18.470: VERBOSE/BluetoothSocket.cpp(3482): availableNative
03-18 15:50:18.470: VERBOSE/BluetoothSocket.cpp(3482): availableNative