[android-developers] Re: Wi-fi MAC address as unique ID

On Dec 5, 8:07 pm, lbendlin <l...@bendlin.us> wrote:
> try the following. Reboot the device with wifi off, and then run your code.
> You will see how the device behaves.
>
> What you have seen so far is just a mean way of caching. When Wifi is on,
> the MAC address is remembered by the system even if you then switch WiFi
> off.

Yes! Super. I get null for wifiinfo.getMacAddress()

OK, now I know what to expect in that situation. But what will I see
on a device that does not have wi-fi hardware?

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