May I know does Tinder api comes with extension like “smack extension” http://www.igniterealtime.org/builds/smack/docs/latest/documentation/extensions/ index.html that whould ease development when using extensions? if yes, any reference?
No, Tinder does not come with an ‘extension’ package as the one that exists for Smack. Tinder, unlike Smack, does not aim to deliver a full-featured XMPP implementation. Tinder provides more basic ‘building blocks’.
In any case, most stanza representations are implemented as a kind of wrappers of dom4j Elements. If you’re looking to implement a class that represents an IQ stanza with a specific child element, you can easily extend Tinder yourself. Have a look at the Roster class, for example.