Expand NFC support

[DelphiWorlds]

Add reading of tag ids etc as per Brian Long's work:

http://blong.com/Articles/Delphi10NFC/NFC.htm

[samuelsoarees]

Hello my friend, you will add this feature to get the tags ids soon?

[DelphiWorlds]

Thanks for the reminder.. I'll have a look at doing this within the next week or so

[DelphiWorlds]

Oops.. bit more than a week. Looking at this before the end of the weekend

[DelphiWorlds]

Changes for reading tag ids have been added. Just for Android at present. Please report any issues/feedback in this issue

[samuelsoarees]

Hello my friend, i have tested this feature and worked. Thanks so much

[staa21]

Hello,
Has somebody tried to find a solution for IOS?

[DelphiWorlds]

It has not been implemented in Kastri, however it appears it will be possible,

[staa21]

I have tried to find a solution for this and extended the following procedure in dw.nfc.ios:
procedure TPlatformNFCReader.readerSessionDidDetectNDEFs(session: NFCNDEFReaderSession; didDetectNDEFs: NSArray);

the following code lead to a crash:
var p:Pointer;
p:=session.valueForKey(StrToNSStr('_foundTags'))
Any idea how to access the session and the found tags in it?
My idea is to get the tagid such as in this post:
https://stackoverflow.com/questions/45946443/how-to-get-the-tag-identifier-in-core-nfc

[DelphiWorlds]

My idea is to get the tagid such as in this post:

As per that post, the code they're using may be rejected by Apple. I am looking at other code in order to implement this.

For my own reference (and perhaps others who are interested), I am looking at these examples:

semlette/nfc_in_flutter#69
https://medium.com/@lrunhem/detect-nfc-tags-on-ios-13-bd43dcf68a4e