Re: [android-developers] Re: Bluetooth connection that persists through activity life-cycle

I am using RFComm with the SPP.  The device is a BT to serial module attached to a microcontroller that I also programmed.  It sends a packet of 17 characters about 3 times a second.  The device is identified by pairing first in the Settings app, then enumerating bonded devices in my app and letting the user select the appropriate device from a spinner.  The socket is created with rfcomm and the UUID for SPP.

After looking at this more closely I realized that what I want to do really should be done in a service, not in an activity.  So I am going to rewrite my BT functionality into a local service that binds to an activity.

On Thursday, August 22, 2013 8:01:00 PM UTC-6, mike digioia wrote:

Which device, soc, stack, HCL are you using. Also are you using rfcomm with serial ?

On Aug 22, 2013 6:46 PM, "RLScott" <fixtha...@yahoo.com> wrote:

Well, I have been working on this all day and I can't get it right.  I have managed to make the BlueTooth connection persists through the temporary invocation of another activity, so that when I return to the first activity the BlueTooth thread is still running, the streams are still streaming, and the socket is still connected.  But when I hit the home button and go to the Android desktop and then resume my app, the BlueTooth connection that needs to happen is stuck in a retry loop where the BluetoothSocket.connect always throws and exception: "Device or resource busy".

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