How can I make clickable links like the Twitter and Facebook app? [duplicate]

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Possible Duplicate:

How to make an expression clickable on iOS?

On Twitter and Facebook, usernames like @ and hashtags like # are clickable, and do something native within t开发者_开发知识库he app.

What is the best way to implement something like this? It would be nice if there was a drop in replacement for a UILabel for example.

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The TTTAttributedLabel project on github is a drop-in replacement for UILabel that supports embedding links. https://github.com/mattt/TTTAttributedLabel

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I'm not sure what Twitter does, but the Facebook app uses a library called Three20 to achieve Rich Text UILabels. They have the ability to be formatted and have in-line hyperlinks. You should specifically look at TTStyledTextLabel.

Check it out: http://three20.info/