bluetooth serial.listeninsecure causing ioexception on some devices.

[ghazuria]

Hello all,

I am getting an exception while trying to initiate serial.listeninsecure. It works fine on my tablet but so far gives the error on my phone and on my android mini pc.

Sub Service_Start (StartingIntent As Intent)
   tmrDiscovery.Initialize("tmrDiscovery",120000)
   tmrDiscovery.Enabled = True
   i.Initialize("android.bluetooth.adapter.action.REQUEST_DISCOVERABLE", "")
   i.PutExtra("android.bluetooth.adapter.extra.DISCOVERABLE_DURATION", 0)
   StartActivity(i)
   If b.StartDiscovery = False Then
      log("Error starting discovery for other devices")
   End If

   s.ListenInsecure(b,11) ' program causing exception here.....
   
End Sub

the errors are as follows:

partysharing_service_start (B4A line: 48)
s.ListenInsecure(b,11)
java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.objects.Serial.ListenInsecure(Serial.java:225)
at sytex.consulting.com.pictureparty.partysharing._service_start(partysharing.java:690)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:167)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:151)
at sytex.consulting.com.pictureparty.partysharing.handleStart(partysharing.java:65)
at sytex.consulting.com.pictureparty.partysharing.onStartCommand(partysharing.java:50)
at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2490)
at android.app.ActivityThread.access$1900(ActivityThread.java:130)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1292)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.io.IOException: Address already in use
at android.bluetooth.BluetoothSocket.throwErrnoNative(Native Method)
at android.bluetooth.BluetoothAdapter.listenUsingInsecureRfcommOn(BluetoothAdapter.java:1079)
... 21 more
java.lang.RuntimeException: Unable to start service sytex.consulting.com.pictureparty.partysharing@412d3538 with Intent { cmp=sytex.consulting.com.pictureparty/.partysharing }: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2507)
at android.app.ActivityThread.access$1900(ActivityThread.java:130)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1292)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:193)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:151)
at sytex.consulting.com.pictureparty.partysharing.handleStart(partysharing.java:65)
at sytex.consulting.com.pictureparty.partysharing.onStartCommand(partysharing.java:50)
at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2490)
... 10 more
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.objects.Serial.ListenInsecure(Serial.java:225)
at sytex.consulting.com.pictureparty.partysharing._service_start(partysharing.java:690)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:167)
... 14 more
Caused by: java.io.IOException: Address already in use
at android.bluetooth.BluetoothSocket.throwErrnoNative(Native Method)
at android.bluetooth.BluetoothAdapter.listenUsingInsecureRfcommOn(BluetoothAdapter.java:1079)
... 21 more


Am I doing something wrong? Any help would be appreciated.

Thanks,

Gun

 

[Erel]

Caused by: java.io.IOException: Address already in use

Android implementation if far from being perfect. Especially on older devices. Make sure that you are calling Disconnect when you are done with the connection.