December 2009

Mashups and APIs

The Irresistible Draw of Mashups and APIs

It’s worth checking in over at Programmable Web once in awhile just to see what they’re up to, with their API discoveries. Google, Twitter, Flickr, and all, the defining mark of a popular Web 2.0 service is whether people do things with your API.

Notable developments from just one recent week:

  • Comedy on Spotify – A directory of comedians and their albums, with video clips for sampling, mashed up out of Freebase and Last.fm. Just dive right in and look for the wit who tickles you the right way.
  • Today’s Special – A Google Wave bot serving up quotes, words, horoscopes, sports scores, and whatnot.
  • Tickets Suck – A Twitter and Twilio mashup that reminds you to move your car so you don’t get a ticket.
  • Quote Relish – A real-time news ticker using the Freebase and Moreover APIs.

Mashups and APIs are an exciting tech trend that’s worth keeping track of, because new gizmos are getting invented every day. This is something we couldn’t do only a decade ago. But even more fascinating is the potential that mashups have; they represent evolution at a lightning pace. Ideas build on ideas, just the way innovation is supposed to work!

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iPhone Animation Sequence

When writing Postage and WORD SPIN we encountered the same problem again and again: the need to chain a sequence of animations together. For example, when the user navigates to the next page we first animate away the controls for the current view, switch views, then animate the controls in for the new view. Initially, we set the UIView delegate and then in our specified selector implementation kicked off the next animation which itself would eventually call back into a completion selector, and so on. But it’s largely the same code over and over, and you either need a bunch of similar looking animationDidStop implementations, or a single implementation that branches based on the animation identifier. For example:

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