December 2010
Beginner to intermediate
320 pages
10h 3m
English
Content preview from Learning the iOS 4 SDK for JavaScript ProgrammersBecome 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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Chapter 1. Why Go Native?
Those who frequently develop mobile web applications with HTML, CSS, JavaScript, and related technologies tend to find a way to reuse those comfortable tools for every app challenge. The iOS (formerly iPhone OS) platform has attracted much attention in the web developer community, and Apple continues to evangelize web app development for the platform.
At the same time, there’s evidence of a desire among developers to adapt their web technologies to replicate the look and feel of native iPhone and iPad apps, whose look and feel users know from the built-in apps and other apps downloaded from the App Store. Perhaps you’ve used third-party libraries, such as iUi or jQTouch, to deploy your content and application ideas so that they look and behave like native iOS apps.
Despite advances in web technologies—especially the HTML5 and WebKit extensions to CSS and Document Object Model (DOM)—an iPhone or iPad web app lacks access to several key facilities built into iOS. You must also deal with the Mobile Safari browser address bar, especially if your users aren’t experienced enough to generate a home screen icon for your app. Additionally, even though both your iPhone-specific styles and scripts target a single OS platform, you still may encounter compatibility issues with earlier versions of Mobile Safari running on iPhone and iPod touch units in the field that haven’t been updated to the latest OS versions. For example, I saw from my server logs that nine months ...
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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.