Cwa-app-android: Impact of bluetooth visibility towards functionality

Created on 16 Jun 2020 · 4Comments · Source: corona-warn-app/cwa-app-android

Android allows to set the visibility of the device. As a standart setting, it is set to invisible and I generally only set it to visible, when first connecting to another device.
Does this setting have any impact on the functionality of the app or can the phone still be contacted by other devices through the app?

in progress question

Source

pheinz95

Most helpful comment

I assume the same, but this should explicitly be stated in the documentation/FAQ to avoid misunderstandings.

pheinz95 on 16 Jun 2020

👍2

All 4 comments

As far as I know, the device does not have to be set to visible/discoverable. In addition, the device does not pair but only uses the bluetooth beacon funktion.

_Correct me if I'm wrong.
I'm not 1000% sure_

DE-Max-42 on 16 Jun 2020

👍1

I assume the same, but this should explicitly be stated in the documentation/FAQ to avoid misunderstandings.

pheinz95 on 16 Jun 2020

👍2

This setting should not impact the functionality of the app, since the app uses Google's API, which is in turn based on Bluetooth LE (Low Energy). LE and classic Bluetooth are different technologies, so the visibility for classic BT shouldn't matter.