following several other posts re people suffering from various java errors service
java.io.IOException: [JSR82] connect: Connection is not created (failed or aborted). or just discovery failed or what ever the reason , once you get these errors you tend to keep getting them unless you power down the android device , at least this has been my experience so far, I have been looking to see what sort of tidy up code (what has to be tidied up ) people have been executing if one fails to connect on discovery or the discovery process itself fails, so I tried the timer as used in B4A bridge example and Disable the adapter and wait a second or two turn it back on again , and wait for the Admin changed status ADMIN STATUS CHANGED to come back to ON and use this event to drive the start of the discovery process once more , but I have a short circuit in the discovery process to find my hard coded name and mac so if I see this device I want to pair with I immediately connect to it and I dont wait for the end of the process, I use the discovery completion event only to determine if I haven't found my hard coded partner device then I exit the application and shut down, Unfortunately what is happening is I get a loop where I try to connect it fails with an IO Exception , so I go into a Reset the Bluetooth adapter turn it off and wait routine but it fails the second time round and goes round again and again , failing the same way each time , so what else besides turning off the adapter and turning it back on again do I have to do to clear pairing or discovery errors in Bluetooth
I attach the code below
code:
________________________________________________________________
Sub Activity_Create(FirstTime As Boolean)
'Do not forget to load the layout file created with the visual designer. For example:
'Activity.LoadLayout("Layout1")
If FirstTime Then
admin.Initialize("admin")
serial1.Initialize("serial1")
resetTimer.Initialize("ResetTimer", 1000)
ticker = 0
'admin.enable
End If
mymac="" ' initalise the string for mymac
Activity.LoadLayout("Main")
End Sub
____________________________________________
Sub Activity_Resume
End Sub
_________________________________________________
Sub Activity_Pause (UserClosed As Boolean)
If UserClosed = True Then
serial1.Disconnect
btnConnect.Enabled = True
blocking_panel.Visible = True
End If
End Sub
Sub btnConnect_Click 'connect to bluetooth and open a serial connection
If admin.IsEnabled = False Then
admin.Enable
Return
End If
If admin.IsEnabled = False Then
If admin.Enable = False Then
ToastMessageShow("Error enabling Bluetooth adapter.", True)
Else
ToastMessageShow("Enabling Bluetooth adapter...", False)
'the StateChanged event will be soon raised
End If
End If
foundDevices.Initialize
resetTimer.Enabled = True
End Sub
Sub Serial1_Connected (Success As Boolean)
ProgressDialogHide
If Success = True Then
ToastMessageShow("Connected to Trigger Box Now.", True)
blocking_panel.Visible = False 'show we are able to communicate now
connected =True
If AStream.IsInitialized = False Then
AStream.Initialize(serial1.InputStream,serial1.OutputStream, "AStream")
End If
Else
Log(LastException.Message)
ToastMessageShow("Connection Failed... Resetting BlueTooth Adapter", True)
' ok we take control
reset_adapter ' turn off then on again bluetooth adapter wait for status to change
End If
End Sub
_______________________________________________
Sub start_bluetooth
foundDevices.Initialize
If admin.StartDiscovery = False Then
ToastMessageShow("Error starting discovery process.", True)
Log(LastException.Message)
Else
ProgressDialogShow("Searching for devices...")
End If
End Sub
____________________________________
Sub reset_adapter
admin.Disable ' turn off adapter now
resetTimer.Enabled = True ' start one second timer
End Sub
_____________________________________________________
Sub Admin_StateChanged (NewState As Int, OldState As Int)
If NewState = admin.STATE_ON AND waitingForBluetoothToBeReady= False Then
Log("Bluetooth adapter is now on")
admin.StartDiscovery
ProgressDialogShow("Searching for devices...")
Return
End If
If NewState = admin.STATE_ON AND waitingForBluetoothToBeReady Then
Log("Bluetooth adapter is now on")
If admin.StartDiscovery = False Then
ToastMessageShow("Error starting discovery process.", True)
Log(LastException.Message)
Else
ProgressDialogShow("Searching for devices...")
waitingForBluetoothToBeReady= False
End If
End If
If NewState = admin.STATE_OFF Then
Log("Bluetooth adapter is now off" )
End If
End Sub
Sub Admin_DiscoveryFinished
ProgressDialogHide
If mymac = "" Then
ToastMessageShow("SmarT-Trigger box not found.", True) 'we should get out of doge here and abandon all hope
ExitApplication ' this will get us out of trouble
End If
End Sub
_________________________________________________________
Sub Admin_DeviceFound (Name As String, MacAddress As String)
Log(Name & ":" & MacAddress)
Dim nm As NameAndMac
nm.Name = Name
nm.Mac = MacAddress
foundDevices.Add(nm)
If nm.Name= "TRIGGER4_101" OR nm.Mac ="00:0A:4F:01:29
4" Then
mymac = "00:0A:4F:01:294"
myname="TRIGGER4_101"
connectedDevice.mac = mymac
connectedDevice.Name= myname
serial1.Disconnect
serial1.Connect(connectedDevice.Mac)
btnConnect.Enabled = False
connected =False
ProgressDialogShow("Trying to connect to: " & connectedDevice.Name & " (" & connectedDevice.Mac & ")")
Return
End If
ProgressDialogShow("Searching for devices (~ device found)...".Replace("~", foundDevices.Size))
End Sub
java.io.IOException: [JSR82] connect: Connection is not created (failed or aborted). or just discovery failed or what ever the reason , once you get these errors you tend to keep getting them unless you power down the android device , at least this has been my experience so far, I have been looking to see what sort of tidy up code (what has to be tidied up ) people have been executing if one fails to connect on discovery or the discovery process itself fails, so I tried the timer as used in B4A bridge example and Disable the adapter and wait a second or two turn it back on again , and wait for the Admin changed status ADMIN STATUS CHANGED to come back to ON and use this event to drive the start of the discovery process once more , but I have a short circuit in the discovery process to find my hard coded name and mac so if I see this device I want to pair with I immediately connect to it and I dont wait for the end of the process, I use the discovery completion event only to determine if I haven't found my hard coded partner device then I exit the application and shut down, Unfortunately what is happening is I get a loop where I try to connect it fails with an IO Exception , so I go into a Reset the Bluetooth adapter turn it off and wait routine but it fails the second time round and goes round again and again , failing the same way each time , so what else besides turning off the adapter and turning it back on again do I have to do to clear pairing or discovery errors in Bluetooth
I attach the code below
code:
________________________________________________________________
Sub Activity_Create(FirstTime As Boolean)
'Do not forget to load the layout file created with the visual designer. For example:
'Activity.LoadLayout("Layout1")
If FirstTime Then
admin.Initialize("admin")
serial1.Initialize("serial1")
resetTimer.Initialize("ResetTimer", 1000)
ticker = 0
'admin.enable
End If
mymac="" ' initalise the string for mymac
Activity.LoadLayout("Main")
End Sub
____________________________________________
Sub Activity_Resume
End Sub
_________________________________________________
Sub Activity_Pause (UserClosed As Boolean)
If UserClosed = True Then
serial1.Disconnect
btnConnect.Enabled = True
blocking_panel.Visible = True
End If
End Sub
Sub btnConnect_Click 'connect to bluetooth and open a serial connection
If admin.IsEnabled = False Then
admin.Enable
Return
End If
If admin.IsEnabled = False Then
If admin.Enable = False Then
ToastMessageShow("Error enabling Bluetooth adapter.", True)
Else
ToastMessageShow("Enabling Bluetooth adapter...", False)
'the StateChanged event will be soon raised
End If
End If
foundDevices.Initialize
resetTimer.Enabled = True
End Sub
Sub Serial1_Connected (Success As Boolean)
ProgressDialogHide
If Success = True Then
ToastMessageShow("Connected to Trigger Box Now.", True)
blocking_panel.Visible = False 'show we are able to communicate now
connected =True
If AStream.IsInitialized = False Then
AStream.Initialize(serial1.InputStream,serial1.OutputStream, "AStream")
End If
Else
Log(LastException.Message)
ToastMessageShow("Connection Failed... Resetting BlueTooth Adapter", True)
' ok we take control
reset_adapter ' turn off then on again bluetooth adapter wait for status to change
End If
End Sub
_______________________________________________
Sub start_bluetooth
foundDevices.Initialize
If admin.StartDiscovery = False Then
ToastMessageShow("Error starting discovery process.", True)
Log(LastException.Message)
Else
ProgressDialogShow("Searching for devices...")
End If
End Sub
____________________________________
Sub reset_adapter
admin.Disable ' turn off adapter now
resetTimer.Enabled = True ' start one second timer
End Sub
_____________________________________________________
Sub Admin_StateChanged (NewState As Int, OldState As Int)
If NewState = admin.STATE_ON AND waitingForBluetoothToBeReady= False Then
Log("Bluetooth adapter is now on")
admin.StartDiscovery
ProgressDialogShow("Searching for devices...")
Return
End If
If NewState = admin.STATE_ON AND waitingForBluetoothToBeReady Then
Log("Bluetooth adapter is now on")
If admin.StartDiscovery = False Then
ToastMessageShow("Error starting discovery process.", True)
Log(LastException.Message)
Else
ProgressDialogShow("Searching for devices...")
waitingForBluetoothToBeReady= False
End If
End If
If NewState = admin.STATE_OFF Then
Log("Bluetooth adapter is now off" )
End If
End Sub
Sub Admin_DiscoveryFinished
ProgressDialogHide
If mymac = "" Then
ToastMessageShow("SmarT-Trigger box not found.", True) 'we should get out of doge here and abandon all hope
ExitApplication ' this will get us out of trouble
End If
End Sub
_________________________________________________________
Sub Admin_DeviceFound (Name As String, MacAddress As String)
Log(Name & ":" & MacAddress)
Dim nm As NameAndMac
nm.Name = Name
nm.Mac = MacAddress
foundDevices.Add(nm)
If nm.Name= "TRIGGER4_101" OR nm.Mac ="00:0A:4F:01:29
4" Then mymac = "00:0A:4F:01:29
4"myname="TRIGGER4_101"
connectedDevice.mac = mymac
connectedDevice.Name= myname
serial1.Disconnect
serial1.Connect(connectedDevice.Mac)
btnConnect.Enabled = False
connected =False
ProgressDialogShow("Trying to connect to: " & connectedDevice.Name & " (" & connectedDevice.Mac & ")")
Return
End If
ProgressDialogShow("Searching for devices (~ device found)...".Replace("~", foundDevices.Size))
End Sub