Archive for October, 2008
Java Developer’s Guide to String Constants in Objective-C
It is my experience that, when developing a J2ME application, excessive String creation is often the leading cause of memory “leaks”. There is always that step during the development cycle where you go back over all your code and refactor out any strings that should be defined as constants. This is no less true of [...]
C++ on iPhone: Part 1
Much is made of the Objective C programming language when discussing iPhone development. It’s the language of choice, many of the iPhone frameworks are written in Obj-C, etc, etc. Coming from a background of mobile development on other platforms, I was curious about how well C++ is supported on the iPhone. BREW, Symbian and Windows [...]
JSON Framework for iPhone (Part 2)
Editor’s Note: Due to the popularity of this iPhone JSON series, a new three part tutorial series on working with JSON was published in August 2009. You can find the latest JSON iPhone tutorial series at the links below: iPhone JSON and Flickr Tutorial – Part 1 iPhone JSON and Flickr Tutorial – Part 2 [...]
Another iPhone Developer Tips Contributor Joins the Team!
How cool is this, a week ago I announced that Rodney Aiglstorfer was going to be contributing to the iPhone Developer Tips blog, and now, another amazing developer has joined us as well! My friend Steve Wetherill, a long time C++ guy brings a wealth of development experience, here’s a little more about Steve:
Understanding Reload, Repaint, and Re-Layout for UITableView
Leaning the Objective-C language isn’t that bad; the true hurdle in learning to develop for iPhone is in understanding the frameworks. UITableView and UITableViewController is a perfect example of how a developer, new to iPhone, can get lost in a quagmire of documentation. Most recently I found my self looking for a way to tell [...]
Java Developer’s Guide to Static variables in Objective-C
The concepts of “static” variables are different in Objective-C compared to Java. That does not mean, however, that the concepts do not exist. Consider the following common uses of ‘static’ in Java: public static final int MY_CONSTANT = 0; // Constant public static String MyVar = “Foo”; // Class Variable In all of the above [...]
A Java Developer’s Guide to Threads on iPhone
Java makes it ridiculously simple to run code in threads and ensure that your objects are thread safe. When developing user experiences, threads enable you to do things in the “background” (like downloading and parsing content) without rendering your application unresponsive and giving the user the sense that the application may have “frozen”. The value [...]
Launching the Browser from within an iPhone application
It is sometimes nice to be able to launch a browser from within your applications. Though not as elegant as the use of a UIWebView, it is much easier. NOTE Because it is possible for an application to bind itself to a URL (like Google Maps), this technique can also be used to launch other [...]
Tools for Creating iPhone Wireframes – OmniGraffle iPhone Stencils
Editor’s Note: There is an update to this post as of October 2009 with an additional stencil. You can read the newest post here: Tools for Creating iPhone Wireframes – OmniGraffle iPhone Stencils – Update Oct 2009 I’m in the midst of creating a set of wireframes for a client for an upcoming iPhone application. [...]
