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我正在开发基于 BluetoothChat 示例的 android 蓝牙游戏。它似乎运作良好，但每 5 - 10 次尝试连接应用程序崩溃。似乎，一些缓冲区溢出。我使用一台设备作为服务器，另一台作为客户端。客户端 (HTC EVO 4G) 因此跟踪而崩溃：

02-04 21:11:54.139: DEBUG/BluetoothService(2048): start
02-04 21:11:54.139: DEBUG/BluetoothService(2048): setState() 0 -> 1
02-04 21:11:54.169: DEBUG/BluetoothService(130): new handle 9
02-04 21:11:54.179: DEBUG/BluetoothService(2048): Socket Type: InsecureBEGIN mAcceptThreadThread[Thread-47,5,main]
02-04 21:11:55.870: ERROR/BluetoothService.cpp(130): stopDiscoveryNative: D-Bus error in StopDiscovery: org.bluez.Error.Failed (Invalid discovery session)
02-04 21:11:55.890: DEBUG/BluetoothService(2048): connect to: 10:BF:48:E8:C1:26
02-04 21:11:55.890: DEBUG/BluetoothService(2048): setState() 1 -> 2
02-04 21:11:55.900: INFO/BluetoothService(2048): BEGIN mConnectThread SocketType:Insecure
02-04 21:11:55.900: ERROR/BluetoothService.cpp(130): stopDiscoveryNative: D-Bus error in StopDiscovery: org.bluez.Error.Failed (Invalid discovery session)
02-04 21:11:57.222: DEBUG/BluetoothService(130): updateDeviceServiceChannelCache(10:BF:48:E8:C1:26)
02-04 21:11:57.222: DEBUG/BluetoothService(130): uuid(system): 00001105-0000-1000-8000-00805f9b34fb -1
02-04 21:11:57.232: DEBUG/BluetoothService(130): uuid(application): fa87c0d0-afac-11de-8a39-0800200c9a66 3
02-04 21:11:57.232: DEBUG/BluetoothService(130): Making callback for fa87c0d0-afac-11de-8a39-0800200c9a66 with result 3
02-04 21:12:05.910: ERROR/BluetoothService.cpp(130): stopDiscoveryNative: D-Bus error in StopDiscovery: org.bluez.Error.Failed (Invalid discovery session)
02-04 21:12:06.491: DEBUG/BluetoothService(2048): stop
02-04 21:12:35.779: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.779: DEBUG/BluetoothService(130): Removing service record 8 for pid 2048
02-04 21:12:35.789: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.789: DEBUG/BluetoothService(130): Removing service record 2 for pid 2048
02-04 21:12:35.789: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.789: DEBUG/BluetoothService(130): Removing service record 1 for pid 2048
02-04 21:12:35.799: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.799: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.799: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.799: DEBUG/BluetoothService(130): Removing service record 7 for pid 2048
02-04 21:12:35.809: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.809: DEBUG/BluetoothService(130): Removing service record 4 for pid 2048
02-04 21:12:35.819: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.819: DEBUG/BluetoothService(130): Removing service record 6 for pid 2048
02-04 21:12:35.819: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.819: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.819: DEBUG/BluetoothService(130): Removing service record 5 for pid 2048
02-04 21:12:35.829: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.829: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.829: DEBUG/BluetoothService(130): Removing service record 3 for pid 2048
02-04 21:12:35.829: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.829: DEBUG/BluetoothService(130): Removing service record 9 for pid 2048
02-04 21:12:35.839: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.839: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.839: DEBUG/BluetoothService(130): Tracked app 2048 died
02-04 21:12:35.839: DEBUG/BluetoothService(130): Tracked app 2048 died

最糟糕的是，我无法再次开始连接 - 直到我重新启动手机。它抛出：

02-04 21:15:11.381: DEBUG/BluetoothService(2322): start
02-04 21:15:11.381: DEBUG/BluetoothService(2322): setState() 0 -> 1
02-04 21:15:12.432: ERROR/BluetoothService(2322): Socket Type: Insecurelisten() failed
        java.io.IOException: Bad file number
        at android.bluetooth.BluetoothSocket.throwErrnoNative(Native Method)
        at android.bluetooth.BluetoothAdapter.createNewRfcommSocketAndRecord(BluetoothAdapter.java:884)
        at android.bluetooth.BluetoothAdapter.listenUsingRfcommWithServiceRecord(BluetoothAdapter.java:820)
        at com.insomniacpro.pillows.Bluetooth.BluetoothService$AcceptThread.<init>(BluetoothService.java:312)
        at com.insomniacpro.pillows.Bluetooth.BluetoothService.start(BluetoothService.java:132)
        at com.insomniacpro.pillows.engine.MultiGameActivity.onResume(MultiGameActivity.java:159)
        at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1242)
        at android.app.Activity.performResume(Activity.java:3904)

有时服务器设备（Nexus 7）崩溃 - 我必须再次重新启动它才能开始工作。堆：

  java.io.IOException: Error: -1
    at android.bluetooth.BluetoothAdapter.createNewRfcommSocketAndRecord(BluetoothAdapter.java:1035)
    at android.bluetooth.BluetoothAdapter.listenUsingRfcommWithServiceRecord(BluetoothAdapter.java:951)
    at com.insomniacpro.pillows.Bluetooth.BluetoothService$AcceptThread.<init>(BluetoothService.java:312)
    at com.insomniacpro.pillows.Bluetooth.BluetoothService.start(BluetoothService.java:132)
    at com.insomniacpro.pillows.engine.MultiGameActivity.onResume(MultiGameActivity.java:159)
    at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1185)

Maybe BluetoothChat app doesnt closes sockets well, when connection is closed?

任何帮助都会很有用！！

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1 回答 1

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最后我以这样糟糕的解决方案结束：每次连接丢失或失败时调用 onFinish() 。这适用于我的情况，但不适用于其他情况。在我看来，BluetoothChat 中的 connectionLost() 函数是不完整的。它应该以另一种方式清除端口。

于 2013-02-05T21:26:05.107 回答