Let user select wifi network. Prevent "Send F-Droid" if no bluetooth.
Include support for libaccesspoint to control the WiFiAP of a device.
Selecting wifi networks i snow possible by touching the name of the
wifi network in the "Start Swap" screen (sometimes it will say
"No network yet"). This exhibits the same behaviour as the "Join Wifi"
screen used to (and still does) do.
On emulators (is there other devices too?), Bluetooth is unavailable,
but the "Send F-Droid" is still there. I could remove it, but then
people may get confused as to why it is not there. Instead, there is
now a dialog which explains why it can't be sent (no Bluetooth).