Queue 'Popular Posts'

Quick Intro To Xcode 4

Submitted by Julio on Wed, 03/09/2011 - 15:45

Hi I’m Julio Barros from E-String.com and I want to give you a super quick overview of Xcode 4 by taking you through building a “Hello World” type application. This write up a accompanies, along with the source code, a video that make up this tutorial. If you have not seen the video please look for it at E-String.com or You Tube

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MapKit Video Tutorial: Sample Code and Slides

Submitted by Julio on Wed, 02/09/2011 - 09:12

In Sep 2009 I presented a talk titled "Getting Oriented with MapKit" at 360iDev in Denver. It went over well and I made a video of the talk and put it on YouTube

Tab Bars and Navigation Controllers in Interface Builder

Submitted by Julio on Sat, 11/28/2009 - 20:25

I often hear questions about using navigation controllers (UINavigationController) and tab controllers (UITabBarController) in the same app. Xcode has a project template for a “Navigation-based Application” which uses a UITableViewController under a navigation controller and for a “Tab Bar application” that creates a tab bar with two regular UIViewControllers that you can switch between. There is no template that creates a tab bar application with navigation based tabs like the iPod app.

Custom UITableViewCells with Interface Builder

Submitted by Julio on Mon, 01/26/2009 - 21:44

A lot of people have questions about creating custom UITableViewCells and after showing this technique to a friend of mine, Ian, he asked me to write it up so that he and others could refer to it. First let me say this is technique is based on an approach another friend of mine showed me last year. Thanks Kendall.

Web Services with Objective-C

Submitted by Julio on Sat, 01/29/2011 - 15:47

I recently gave a short talk on creating clients that access web services in Objective-C. RESTful web services are incredibly useful and are more and more common everyday.

The slides, available at slideshare, show simple examples using NSURL, NSMutableURLRequest and NSURLConnection plus a simple overview of NSXMLParser.

For a list of APIs check out ProgrammableWeb.com

9 Ways to Monetize Your iOS App

Submitted by Julio on Mon, 02/21/2011 - 10:20

Developers used to just simply charge for software. You would write a program that others considered valuable and they would pay for a license to use it. Developers also used to charge for updates. Those same people who bought the original product would pay periodically when you added significant features and improved the product’s operation.

Software sales are not so simple anymore. There is a definite a downward pressure on app prices; many users even expect them to be free. Of course, “There is no such thing as a free lunch” (TANSTAAFL) so somebody, somewhere, is going to have to pay at sometime. If not, app development will not be economically feasible and apps will be abandoned. However, perhaps we should at least consider that a large part of the industry is moving away from the pay-full-price-up-front model.

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