contacts - Sizes For iPhone AddressBook Pictures? -

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i programmatically generate contact pictures - gravatar does, although not exactly.

are there size requirements on generated images such contact picture full-screen when user calls? there differences these size requirements between iphone 3/gs , iphone 4?

i presume setting pictures using abaddressbook api provide no hurdles.

in both cases - iphone 3 , iphone 4 (with retina display) wound setting image size 640 x 960. when set profile picture 320 x 480 iphone 3, image didn't scale fit full screen.

so there go!


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