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问Android蓝牙日志填满logcat
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Stack Overflow用户

提问于 2011-03-09 03:52:18

回答 5查看 6.7K关注 0票数 14

我使用蓝牙聊天示例作为起点，实现了从我的手机到嵌入式设备的BT连接。我能够成功地连接到设备，但是一旦建立了连接，logcat就会被大量的日志溢出。当我第一次使用BT聊天应用程序手机对手机时，我没有看到这种类型的日志。

这是一遍又一遍重复的。它基本上使logcat不可用。到目前为止，我还没有找到一种方法来配置日志记录，或者为什么它会记录这么多日志。任何真知灼见都将不胜感激。

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

bluetooth

android

回答 5

Stack Overflow用户

回答已采纳

发布于 2011-03-09 03:57:36

在DDMS中，您可以使用debug、info、error、warning按钮筛选出内容，还可以创建一个特殊的筛选器，只显示您感兴趣的内容。不要认为有任何蓝牙设置可以用来关闭日志记录。

票数 -1

Stack Overflow用户

发布于 2013-03-18 01:48:14

在玩完我的Arduino Board +蓝牙适配器后，我试着从MATT BELL'S BLOG实现蓝牙代码。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。如果不使用修复程序，将导致每隔5毫秒就会收到一封垃圾邮件，从而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

我目前的修复方法是在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：目前我不得不将睡眠计时器降低到10毫秒。垃圾邮件

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

票数 4

Stack Overflow用户

发布于 2012-08-17 16:24:11

这肯定是一个错误，而且是一个严重的错误：

或者Logcat有时只显示此调试打印-尽管我的代码总是会遇到它
或蓝牙芯片有时运行松动...(更有可能)。

只是将日志级别从verbose 调到debug并不会改变有大量数据传输到Logcat的事实，从而阻塞所有正常日志...

票数 3

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/5237513

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