So basically I will have a background thread that periodically tried to connec and immediate disconnect?
On Mar 25, 4:35 pm, Kristopher Micinski <[email protected]> wrote: > On Fri, Mar 25, 2011 at 4:53 AM, ehpaul <[email protected]> wrote: > > Hello, I am writing an android program that I need to know when a > > bluetooth device (I know the Mac) is in range. The program also needs > > to be aware when the device is not in range. Is there any way to do > > this without establishing a connection? > > Not that I've seen from the Bluetooth API exposed to the user. I don't > understand the underlying protocol horribly well, but you need to actually > scan for the uuid using SDP, which requires a call to the API. > > > When the device is in range, I am able to call > > BluetoothAdapter.getRemoteDevice and retrieve the friendly name. But > > when I am not in range, it seems this information is cached. I was > > thinking if I can use the friendly name as an indicator whether the > > device is within range (i.e If friendly name is not null, then it's in > > range). I am certain there is better way to do this. But it seems the > > only way is to establishing a connection. > > I don't think there is a better way, at least with the current API. Unless > by better way you mean a more elaborate synchronization mechanism or > something like that. But yes, I think at least from the API exposed by the > android system, you have to do polling. > > (I wanted to do what you described too, I think it's a common thing, but > perhaps not the anticipated use of BT and / or the android API.) > > Kris -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
