注意：也发布在https://groups.google.com/forum/?fromgroups=#!topic/android-scripting/UsPy3x4jvG0
我正在尝试连接到蓝牙 RFCOMM 设备。我使用 sl4a 并从 Python 脚本连接。我有两个运行相同 Android 版本 2.3.4 的 Android 设备。
在一台设备上（Galaxy S2 非常接近股票内核，root），脚本运行良好并连接到 RFCOMM 设备。在另一台设备上，异国情调的 Winmate E430T（我怀疑是专门的坚固型 Android 手机，音量相当低），我得到了java.io.IOException: Connection refused.
我尝试运行示例代码bluetooth_chat.py但没有成功，该代码用于 Android 到 Android 的连接。我收到相同的错误消息，这表明问题不在我的代码中，而更多的是 Winmate 手机的状态（是否已root，已安装软件，配置）。
有人见过类似的东西吗？我看到了关于 unpair-repair 的帖子，我尝试了两次，但没有帮助。在安装 Python 和所有模块后，我还尝试重新启动 Winmate。
编码：
import android
droid = android.Android()
address = '00:12:F3:11:DC:D5'
uuid = '00001101-0000-1000-8000-00805F9B34FB'
droid.toggleBluetoothState(True)
droid.bluetoothConnect(uuid, address)
logcat 的摘录：
V/sl4a.JsonRpcServer:117(27913): Sent: {"error":null,"id":6,"result":{"which":"negative"}}
V/sl4a.JsonRpcServer:74(27913): Received: {"params": [], "id": 7, "method": "bluetoothConnect"}
I/ActivityManager( 1304): Starting: Intent { flg=0x18000000 cmp=com.googlecode.android_scripting/.activity.FutureActivity (has extras) } from pid 27913
I/HK/LatinKeyboardBaseView( 1385): closing org.pocketworkstation.pckeyboard.LatinKeyboardView@407d4810
D/sl4a.ConsoleActivity:761(27913): onResume called
D/sl4a.ConsoleActivity:746(27913): onPause called
V/sl4a.FutureActivity:50(27913): FutureActivity created.
I/ActivityManager( 1304): Starting: Intent { cmp=com.googlecode.android_scripting/.activity.BluetoothDeviceList } from pid 27913
E/BluetoothEventLoop.cpp( 1304): event_filter: Received signal org.bluez.Adapter:PropertyChanged from /org/bluez/23550/hci0
V/BluetoothEventRedirector( 1862): Received android.bluetooth.adapter.action.DISCOVERY_STARTED
I/HK/LatinKeyboardBaseView( 1385): closing org.pocketworkstation.pckeyboard.LatinKeyboardView@407d4810
E/BluetoothEventLoop.cpp( 1304): event_filter: Received signal org.bluez.Adapter:DeviceFound from /org/bluez/23550/hci0
D/BluetoothService( 1304): updateDeviceServiceChannelCache(00:12:F3:11:DC:D5)
V/BluetoothEventRedirector( 1862): Received android.bluetooth.device.action.FOUND
E/BluetoothEventLoop.cpp( 1304): event_filter: Received signal org.bluez.Adapter:DeviceFound from /org/bluez/23550/hci0
D/BluetoothService( 1304): updateDeviceServiceChannelCache(0C:DF:A4:78:99:50)
I/ActivityManager( 1304): Displayed com.googlecode.android_scripting/.activity.BluetoothDeviceList: +449ms (total +519ms)
D/BluetoothService( 1304): uuid(system): 00001105-0000-1000-8000-00805f9b34fb 3
V/BluetoothEventRedirector( 1862): Received android.bluetooth.device.action.FOUND
D/wpa_supplicant(19159): CMD: DRIVER RSSI-APPROX
D/wpa_supplicant(19159): wpa_driver_tista_driver_cmd RSSI-APPROX
D/wpa_supplicant(19159): rssi-approx command
D/wpa_supplicant(19159): CMD: DRIVER LINKSPEED
D/wpa_supplicant(19159): wpa_driver_tista_driver_cmd LINKSPEED
D/wpa_supplicant(19159): Link Speed command
D/wpa_supplicant(19159): buf LinkSpeed 54
E/BluetoothEventLoop.cpp( 1304): event_filter: Received signal org.bluez.Adapter:PropertyChanged from /org/bluez/23550/hci0
E/BluetoothService.cpp( 1304): stopDiscoveryNative: D-Bus error in StopDiscovery: org.bluez.Error.Failed (Invalid discovery session)
V/BluetoothEventRedirector( 1862): Received android.bluetooth.adapter.action.DISCOVERY_FINISHED
D/sl4a.ConsoleActivity$1:145(27913): Connected to TerminalManager and found bridges.size=1
I/HK/LatinKeyboardBaseView( 1385): closing org.pocketworkstation.pckeyboard.LatinKeyboardView@407d4810
D/sl4a.ConsoleActivity:761(27913): onResume called
E/BluetoothEventLoop.cpp( 1304): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/23550/hci0/dev_0C_DF_A4_78_99_50
D/BluetoothService( 1304): updateDeviceServiceChannelCache(0C:DF:A4:78:99:50)
D/BluetoothService( 1304): uuid(system): 00001105-0000-1000-8000-00805f9b34fb 3
D/BluetoothService( 1304): uuid(application): 457807c0-4897-11df-9879-0800200c9a66 13
D/BluetoothService( 1304): Making callback for 457807c0-4897-11df-9879-0800200c9a66 with result 13
V/BluetoothEventRedirector( 1862): Received android.bleutooth.device.action.UUID
E/sl4a.JsonRpcServer:101(27913): Invocation error.
E/sl4a.JsonRpcServer:101(27913): java.io.IOException: Connection refused
E/sl4a.JsonRpcServer:101(27913): at android.bluetooth.BluetoothSocket.connectNative(Native Method)
E/sl4a.JsonRpcServer:101(27913): at android.bluetooth.BluetoothSocket.connect(BluetoothSocket.java:204)
E/sl4a.JsonRpcServer:101(27913): at com.googlecode.android_scripting.facade.BluetoothFacade.bluetoothConnect(BluetoothFacade.java:158)
E/sl4a.JsonRpcServer:101(27913): at java.lang.reflect.Method.invokeNative(Native Method)
E/sl4a.JsonRpcServer:101(27913): at java.lang.reflect.Method.invoke(Method.java:507)
E/sl4a.JsonRpcServer:101(27913): at com.googlecode.android_scripting.jsonrpc.RpcReceiverManager.invoke(RpcReceiverManager.java:87)
E/sl4a.JsonRpcServer:101(27913): at com.googlecode.android_scripting.facade.FacadeManager.invoke(FacadeManager.java:58)
E/sl4a.JsonRpcServer:101(27913): at com.googlecode.android_scripting.rpc.MethodDescriptor.invoke(MethodDescriptor.java:109)
E/sl4a.JsonRpcServer:101(27913): at com.googlecode.android_scripting.jsonrpc.JsonRpcServer.handleConnection(JsonRpcServer.java:99)
E/sl4a.JsonRpcServer:101(27913): at com.googlecode.android_scripting.SimpleServer$ConnectionThread.run(SimpleServer.java:91)
V/sl4a.JsonRpcServer:117(27913): Sent: {"error":"java.io.IOException: Connection refused","id":7,"result":null}
V/sl4a.JsonRpcServer:74(27913): Received: {"params": [], "id": 8, "method": "bluetoothReadLine"}
E/sl4a.JsonRpcServer:101(27913): Invocation error.
E/sl4a.JsonRpcServer:101(27913): java.io.IOException: Bluetooth not ready for this connID.
E/sl4a.JsonRpcServer:101(27913): at com.googlecode.android_scripting.facade.BluetoothFacade.getConnection(BluetoothFacade.java:95)
E/sl4a.JsonRpcServer:101(27913): at com.googlecode.android_scripting.facade.BluetoothFacade.bluetoothReadLine(BluetoothFacade.java:231)
E/sl4a.JsonRpcServer:101(27913): at java.lang.reflect.Method.invokeNative(Native Method)
E/sl4a.JsonRpcServer:101(27913): at java.lang.reflect.Method.invoke(Method.java:507)
E/sl4a.JsonRpcServer:101(27913): at com.googlecode.android_scripting.jsonrpc.RpcReceiverManager.invoke(RpcReceiverManager.java:87)
E/sl4a.JsonRpcServer:101(27913): at com.googlecode.android_scripting.facade.FacadeManager.invoke(FacadeManager.java:58)
E/sl4a.JsonRpcServer:101(27913): at com.googlecode.android_scripting.rpc.MethodDescriptor.invoke(MethodDescriptor.java:109)
E/sl4a.JsonRpcServer:101(27913): at com.googlecode.android_scripting.jsonrpc.JsonRpcServer.handleConnection(JsonRpcServer.java:99)
E/sl4a.JsonRpcServer:101(27913): at com.googlecode.android_scripting.SimpleServer$ConnectionThread.run(SimpleServer.java:91)
V/sl4a.JsonRpcServer:117(27913): Sent: {"error":"java.io.IOException: Bluetooth not ready for this connID.","id":8,"result":null}
V/sl4a.JsonRpcServer:74(27913): Received: {"params": ["Chat Received", null], "id": 9, "method": "dialogCreateAlert"}
V/sl4a.JsonRpcServer:117(27913): Sent: {"error":null,"id":9,"result":null}
V/sl4a.JsonRpcServer:74(27913): Received: {"params": ["Ok"], "id": 10, "method": "dialogSetPositiveButtonText"}
V/sl4a.JsonRpcServer:117(27913): Sent: {"error":null,"id":10,"result":null}
V/sl4a.JsonRpcServer:74(27913): Received: {"params": [], "id": 11, "method": "dialogShow"}
I/ActivityManager( 1304): Starting: Intent { flg=0x18000000 cmp=com.googlecode.android_scripting/.activity.FutureActivity (has extras) } from pid 27913
D/sl4a.ConsoleActivity:746(27913): onPause called
编辑 2012 年 13 月 9 日 09:55：我尝试Bluetooth Chat App了市场上的 (BILL RAY)，它允许我的两部手机聊天，我可以从任一方连接：问题至少可以用 Java 解决。这个bluetooth_chat.py例子仍然不起作用。
编辑 10:45：我从 BeanShell 尝试仍然在 SL4A 中遇到同样的问题，在我的 S2 上工作并在我的 Winmate 上失败：
代码：
source("/sdcard/com.googlecode.bshforandroid/extras/bsh/android.bsh");
droid = Android();
droid.call("makeToast", "Hello, Android!");
address = "00:12:F3:11:DC:E5";
uuid = "00001101-0000-1000-8000-00805F9B34FB";
droid.call("toggleBluetoothState","True");
droid.call("bluetoothConnect",uuid, address);
droid.call("makeToast", "Bye, Android!");
logcat 类似：
I/ActivityManager( 1305): Starting: Intent { act=android.bluetooth.adapter.action.REQUEST_ENABLE cmp=com.android.settings/.bluetooth.RequestPermissionActivity } from pid 7364
D/dalvikvm( 7364): GC_CONCURRENT freed 1075K, 49% free 3716K/7239K, external 4198K/5242K, paused 2ms+14ms
V/sl4a.JsonRpcServer:117( 7364): Sent: {"error":null,"id":0,"result":true}
I/HK/LatinKeyboardBaseView( 1385): closing org.pocketworkstation.pckeyboard.LatinKeyboardView@4078a040
V/sl4a.JsonRpcServer:74( 7364): Received: {"id":0,"method":"bluetoothConnect","params":["00001101-0000-1000-8000-00805F9B34FB","00:12:F3:11:DC:E5"]}
E/BluetoothService.cpp( 1305): stopDiscoveryNative: D-Bus error in StopDiscovery: org.bluez.Error.Failed (Invalid discovery session)
I/ActivityManager( 1305): Displayed com.googlecode.android_scripting/.activity.FutureActivity: +223ms
I/HK/LatinKeyboardBaseView( 1385): closing org.pocketworkstation.pckeyboard.LatinKeyboardView@4078a040
D/sl4a.ConsoleActivity:761( 7364): onResume called
E/BluetoothEventLoop.cpp( 1305): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/1804/hci0/dev_00_12_F3_11_DC_E5
I/ActivityManager( 1305): Start proc com.google.android.carhome for broadcast com.google.android.carhome/.receiver.BluetoothLaunchReceiver: pid=7876 uid=10020 gids={3002, 3001}
I/HK/LatinKeyboardBaseView( 1385): closing org.pocketworkstation.pckeyboard.LatinKeyboardView@4078a040
I/ActivityThread( 7876): Pub com.google.android.carhome.config: com.google.android.carhome.CarHomeProvider
D/BluetoothService( 1305): updateDeviceServiceChannelCache(00:12:F3:11:DC:E5)
D/BluetoothService( 1305): uuid(application): 00001101-0000-1000-8000-00805f9b34fb 1
D/BluetoothService( 1305): Making callback for 00001101-0000-1000-8000-00805f9b34fb with result 1
D/dalvikvm( 7364): GC_EXTERNAL_ALLOC freed 50K, 49% free 3698K/7239K, external 4198K/5242K, paused 131ms
V/BluetoothEventRedirector( 7681): Received android.bleutooth.device.action.UUID
I/BluetoothEventLoop.cpp( 1305): agent_event_filter: Received method org.bluez.Agent:OutOfBandAvailable
I/sl4a.TerminalBridge:540( 7364): parentChanged() now width=133, height=34
E/sl4a.JsonRpcServer:101( 7364): Invocation error.
E/sl4a.JsonRpcServer:101( 7364): java.io.IOException: Connection refused
E/sl4a.JsonRpcServer:101( 7364): at android.bluetooth.BluetoothSocket.connectNative(Native Method)
E/sl4a.JsonRpcServer:101( 7364): at android.bluetooth.BluetoothSocket.connect(BluetoothSocket.java:204)
E/sl4a.JsonRpcServer:101( 7364): at com.googlecode.android_scripting.facade.BluetoothFacade.bluetoothConnect(BluetoothFacade.java:158)
E/sl4a.JsonRpcServer:101( 7364): at java.lang.reflect.Method.invokeNative(Native Method)
E/sl4a.JsonRpcServer:101( 7364): at java.lang.reflect.Method.invoke(Method.java:507)
E/sl4a.JsonRpcServer:101( 7364): at com.googlecode.android_scripting.jsonrpc.RpcReceiverManager.invoke(RpcReceiverManager.java:87)
E/sl4a.JsonRpcServer:101( 7364): at com.googlecode.android_scripting.facade.FacadeManager.invoke(FacadeManager.java:58)
E/sl4a.JsonRpcServer:101( 7364): at com.googlecode.android_scripting.rpc.MethodDescriptor.invoke(MethodDescriptor.java:109)
E/sl4a.JsonRpcServer:101( 7364): at com.googlecode.android_scripting.jsonrpc.JsonRpcServer.handleConnection(JsonRpcServer.java:99)
E/sl4a.JsonRpcServer:101( 7364): at com.googlecode.android_scripting.SimpleServer$ConnectionThread.run(SimpleServer.java:91)
V/sl4a.JsonRpcServer:117( 7364): Sent: {"error":"java.io.IOException: Connection refused","id":0,"result":null}