[Interest] Serial port / Bluetooth port to Android

Murphy, Sean smurphy at walbro.com
Tue Aug 29 17:15:59 CEST 2017

> > On the Android device, we really only care about connected to the external
> > device via Bluetooth. But does this same behavior, where Bluetooth looks
> > like a serial device, exist under Android and I can still use QSerialPort? Or 
> > do I need some other device (i.e. QBluetoothSocket)?
> You have to use QBluetoothSocket. There is no other choice. At the end of
> the day both interfaces are derived from QIODevice. "Merely" the path to
> your QIoDevice is different.

Thanks for the response.

Is this just a difference of Android vs. Windows that our external BT device 
doesn't show up as a serial device under Android like it does under Windows?

I don't think it will be a huge deal to rewrite, but 4 years ago when I started 
writing the affected class we were "only ever going to run this application on 
Windows using a USB to Serial adapter". So back then I created a class that 
inherits from QSerialPort and started coding. I think based on what you're saying 
about needing QBluetoothSocket under Android, and to make it more flexible in 
general, I should probably just change that class to inherit from QObject and take a 
QIODevice* so that I can swap out QSerialPort, QBluetoothSocket, or even 
QTcpSocket if needed?


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