Wayne Pan benchmarked JavaScript on the iPhone 3.0 beta as compared to the 2.2 release and found performance improvements of 3-10x for various calculations: Wayne’s blog adds some details and includes a spreadsheet with the raw results. It appears, based on research done by Ajaxian (using their Webkit detector) that 3.0 could be using the [...]
Archive | March, 2009
Interview With Public Radio Tuner Creators Bill Heyman and Damon Allison
Bill Heyman and Damon Allison of CodeMorphic created the Public Radio Tuner. Currently the #1 free audio application, the Public Radio Tuner lets iPhone owners listen to live streams of hundreds of public radio stations. This interview features detailed instructions for creating streaming applications, and some of the similar-but-different challenges they faced when creating a [...]
Read full story •
Comments Off
Using Google APIs In iPhone Apps
Tom Saxton, creator of the grocery list application Grocophile, posted a thorough piece on using Google APIs in iPhone apps. Tom’s post includes detailed information on the steps to upload and download documents from Google, how Google Docs differs from a file-system, and resources to integrate the Google API library into an iPhone Xcode project. [...]
Read full story •
Comments Off
SQLCipher: Transparent SQLite Encryption For iPhone Apps
Need to store sensitive information in your app? SQLCipher extends SQLite enabling transparent encryption and decryption of data using AES. Its source is available on Github. SQLite is pluggable. Developers can create extensions and chain them into SQLite’s engine. Using this mechanism, SQLCipher embeds itself low enough in the stack to be transparent. As a [...]
Read full story •
Comments Off
Getting Ready For Core Data In 3.0
As noted by Jeff LaMarche, iPhone 3.0 includes the previously-absent Core Data API. While Core Data is a core component to OS-X programming, many iPhone developers will be unfamiliar with it, having skipped directly to Cocoa Touch without ever touching Cocoa. We’ve put together a compact set of three resources that introduce — from decidedly [...]
Joe Hewitt’s Three20 Project
Less than a week after he released Facebook Connect for iPhone, Joe Hewitt has posted the code for Three20, an expansive, open-source collection of UI components and HTTP/web inspired architectural elements. The project has an interesting lineage: most of the functionality was part of Facebook for iPhone 2.2, but the library doesn’t directly re-use the [...]
3.0′s Missing Trialware Business Model
One of most talked about features from the upcoming iPhone 3.0 release is In-App Purchases. The examples from 3.0 preview event illustrate its use: game developers can sell additional levels, city guides can sell new locations, and e-book readers can purchase new paid content. These are all obvious wins for iPhone app developers, though it [...]
A Simple iPhone Image Processing Library
Chris Greening has put together simple-iphone-image-processing, a “simple C++ class with an Objective-C wrapper that provides a set of common image processing tasks” as well as UIImage conversion. So what do you get..? Canny edge detection – http://en.wikipedia.org/wiki/Canny_edge_detection Histogram equalisation – http://en.wikipedia.org/wiki/Histogram_equalisation Skeletonisation – http://en.wikipedia.org/wiki/Topological_skeleton Thresholding, adaptive and global – http://en.wikipedia.org/wiki/Thresholding_(image_processing) Gaussian blur (used as [...]
Tutorial: JSON Over HTTP On The iPhone
There are plenty of different places to get a mobile application designed. The problem is that they’re quite expensive. You might be able to figure out how to create your own, but it will probably look very basic. Instead, a good mobile application development software can make it even easier, so that you can build [...]
10 Useful Links about the iPhone OS 3.0 Preview for Developers
Today, Apple held an iPhone OS 3.0 Preview event for developers and the press. The upgrade itself won’t be available to end users until summer so as a developer you’re looking at a minimum 3 month lead time to develop updates and new products based around the new features. This hasn’t stopped the blogosphere going [...]
Recent Comments