Android Question BluetoothAdmin after disable the bluetooth in config start calling Serial_Connected

[Humberto]

I´m testing the bluetooth connection.

When I run the program it reads all bluetooth arround and stop.

If I go to Android Config anf disable the bluetooth the "Serial_Conected" routine inside BluetoothAdmin is calling without stop, even if you turn the bluetooth on again it doesn´t stop calling

The log is bellow

*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
VIVOFIBRA-C958-5G,WPA2,-25,Saved,10:72:23:1d:c9:63,100,5540,5530,0,2,108,2,0.08
hsp,WPA2,-26,Saved,06:72:23:1d:c9:63,100,5540,5530,0,2,108,2,0.09
hsp,WPA2,-34,Saved,10:72:23:1d:c9:56,100,2462,0,0,0,11,1,0.49
MAIA,WPA2,-67,,90:58:51:ac:9f:91,66,2412,0,0,0,1,1,22.14
#NET-CLARO-WIFI,NONE,-67,,92:58:51:ac:a0:92,66,2412,0,0,0,1,1,22.14
PublishNews 3,WPA2,-67,,88:f7:c7:9f:5c:5c,66,2457,0,0,0,10,1,21.73
PublishUBQ,WPA2,-73,,7a:8a:20:db:13:75,54,5745,5755,0,1,149,2,18.54
PublishUBQ,WPA2,-73,,78:8a:20:da:13:75,54,2412,0,0,0,1,1,44.17
MAIA5G,WPA2,-79,,90:58:51:ac:9f:92,42,5180,5210,0,2,36,2,41.04
** Activity (main) Pause, UserClosed = false **
state changed: 13
connected G6: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
state changed: 10
connected G6: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected G6: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
state changed: 11
connected G6: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
state changed: 12
connected G6: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected G6: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected G6: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected G6: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected G6: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1

"State Change 13 " indicate that I turn off the bluetooth and the line "State Change 12" indicate that the bluetooth is on again

The project is attached

Thanks

 

[Erel]

Do you see this behavior with the Bluetooth example, without making any changes?

 

[Humberto]

I tried with chat example and occurs the same problem

 

[Erel]

I'm unable to reproduce it here and there is no code that tries to reconnect after failure.

Worth testing with a different device.

 

[Humberto]

I´ll try in a different phone

 

[Humberto]

Hi, sorry but I got just now two other Smartphones to test

With Moto G5 Plus android 8.1 and Moto G6 plus android 9 occurs the same problem.

 

[Erel]

You will need to debug it. Make sure to use the chat example as-is: https://www.b4x.com/android/forum/threads/android-bluetooth-bluetoothadmin-tutorial.14768/

Add some log messages, especially in ConnectTo sub and see whether it gets called multiple times.

 

[Humberto]

With the Chat example, when I press the button "make Device Discoverable" authorize and then Disable the Bluetooth even if I close the program , enable the bluetooth again, the error continue until I turn off th cellphone

*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
state changed: 11
Bluetooth State false
state changed: 12
Bluetooth State true
** Activity (main) Pause, UserClosed = false **
** Activity (main) Resume **
state changed: 13
Bluetooth State false
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
state changed: 10
Bluetooth State false
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
** Activity (main) Pause, UserClosed = false **
** Activity (main) Resume **
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
** Activity (main) Pause, UserClosed = false **
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
state changed: 11
Bluetooth State false
state changed: 12
Bluetooth State true
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1

 

[Erel]

Add a log message in ConnectTo sub. Is it called multiple times?

 

[Humberto]

I put a Log in "ConnectTo" and there is no call to that routine just call to "Serial_Connected"

Public Sub ConnectTo (Device As NameAndMac)
    Log ( "*** ConnectTo Call ****")
    
    serial.Connect(Device.Mac)
End Sub

** Activity (main) Pause, UserClosed = false **
** Activity (main) Resume **
Provider: network - Time: 11:18 - Long: -46.6903044 - Lat: -23.556019
state changed: 13
Bluetooth State false
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
state changed: 10
Bluetooth State false
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
** Receiver (detect_bluetooth) OnReceive **
** Service (detect_bluetooth) Start **
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1
** Activity (main) Pause, UserClosed = true **
** Service (starter) Destroy (ignored)**
Provider: network - Time: 11:19 - Long: -46.6905628 - Lat: -23.5556174

 

[Erel]

Please test it only with the chat example.

 

[Humberto]

This line if from another software that is always running in this phone

Provider: network - Time: 11:19 - Long: -46.6905628 - Lat: -23.5556174

I need to unistall it?

 

[Erel]

This line is not relevant. However it is possible that there is a different B4A app running that produces these logs.

If you have a development device then factory reset it, only install the chat example and test it.

 

[Humberto]

I run the app in debug mode, when these erros occurs I stop runnig and the erros stops.
If I call again the program no error occurs until I do the sequence again