masking a UIImage

Posted by iworkinprogress on Stack Overflow See other posts from Stack Overflow or by iworkinprogress
Published on 2010-05-05T21:00:27Z Indexed on 2010/05/08 4:18 UTC
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Filed under:

uiimage

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mask

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transparent

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cocoa-touch

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core-graphics

I'm working on an app that can change the borders or a rectangular UIImage. The borders will vary, but will look like the UIImage was cut out with scissors, or something to that affect.

What is the best way to do this?

My first thought is to prep a bunch of transparent PNGs with the correct border effect I'm looking for, and then somehow use that as a mask for my UIImage. Is this the right path? Or is there a more flexible programmatic way to do this?

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