July 2011
Intermediate to advanced
352 pages
10h 14m
English
Content preview from iPhone® & iPad® Web Design For Dummies®Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Desiging Images for the iPhone and iPad
Cramming a high-resolution image that can be blown up to poster size onto an iPhone screen makes no sense. Not only would the photos not display correctly, but downloading a file that large would also take an inordinately long time and your visitors would likely abandon your site. Rather than force visitors to download large images on the home page of your mobile site, which iPhone users would access, you should ensure that your designs honor the constraints under which your users labor.
Sizing up image-sizing strategies
If you plan to put images on your mobile website, the design process goes more smoothly if you have a strategy to handle the different screen sizes, resolutions, and aspect ratios.
Sizing one image to fit both screens: A practical and timesaving way to create images optimized to work on both the iPhone and iPad is to create one web-optimized image that looks good on both devices. It isn’t a perfect science, but both the iPad and iPhone 4 have such great-looking displays that you can scale an image up or down quite a bit and it can still look quite good. Although this method isn’t foolproof, creating one optimized image is the simplest option, and it will work for many sites.
Using multiple image sizes: If you have the resources ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.