Add possibility to save/send QR code

[bparmentier]

Saving the image would require the WRITE_EXTERNAL_STORAGE permission. Only add this feature if really needed.

[alanthehat]

I'm not an Android programmer, but, as I understand it under Lollipop & later (possibly Kitkat) each app is granted read/write rights in it's own directory under [ext-sdcard]/Android/data/ - I don't know how useful that is

[bparmentier]

That's correct. But the permission would still be required if the QR code (PNG file) is exported to, for example, the Pictures directory (to be shown in the gallery). Not sure if this would be useful however.

[alanthehat]

I have QR codes for WiFi saved on my device but finding them among other pictures is slower & more awkward than opening this app & finding them. A user may wish to generate the codes, save them then uninstall the app though they could easily be captured with a screenshot so instructions for that would be useful. (Samsung is different to most, plus this is not available in Gingerbread & earlier)
The only use case that i can think of straight away for saving them is printing to keep beside the access point or on the wall at an event. For this i would like to see a user-editable text area pre-populated with the contents of the QR & NFC
If you are thinking of sending for email you should consider sending for encryption first as no current mailer offers encryption of attachments