November 2012
Intermediate to advanced
312 pages
7h 4m
English
Content preview from Smashing Mobile Web DevelopmentBecome 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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Performance Tips
Although we all love carrying the Internet in our pockets, getting it in such a small container has come with a number of compromises. Namely, mobile devices are considerably underpowered when compared with desktop alternatives. Therefore, when developing for mobile, performance should always be one of your main concerns.
Mobile bandwidth
One of the major challenges in mobile development is optimizing for mobile bandwidth. High-speed Internet allows web apps to fly for desktop browsers, but mobile apps tend to crawl at the speed of dial-up. Sure, advances in mobile networks have brought faster connections, but these improvements are met with increased expectations on what mobile apps should deliver. Furthermore, these networks can be spotty—you shouldn’t assume users always have 4G.
One of the best ways to improve the performance of your mobile app is to reduce its bandwidth needs.
Fewer images, more CSS
Assuming you don’t need any video or audio, the largest bandwidth consumer in your app is most likely imagery. Fortunately, modern mobile browsers offer a variety of CSS3 properties that can be used to avoid images wherever possible.
For instance, instead of using a separate image for each button in the Corks app, you used rounded corners, gradients, and borders generated purely with CSS. Although the CSS for these properties can be pretty long with vendor-specific prefixes, it is nothing compared to what it would cost in actual images. Furthermore, CSS is much ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.