Version Control. Xcode4 - Renaming xcode 4 project - AND THE SOURCE FOLDER. iAD. Design. Marketing. Objective-C Categories Explained. Good app developers know how to save time, this generally means no copy-and-paste, no duplicate code and a good class structure to keep common items grouped together in an efficient class hierarchy.
One way to add functionality to an existing class is to subclass it. We create a new descendent of our class, add the required functionality and use the new class in place of the old one. This approach of subclassing is common to all object-orientated language and is one of the key features that enable developers to extend and enhance existing code. Objective-c however, has another way to extend existing classes, a powerful system called Categories. Whilst we can add more classes to our hierarchy to enhance functionality, more classes lead to more complexity, which will make our code more difficult to manage.
By using categories, we can alter the very definition of the existing objects we work with every day. The source code for this article can be downloaded here. My First Category! Cocos2d.
How to Design An iPhone App With Custom UI. Monthly Income & Expense Reports. 15 iPhone Application Development Tutorials Worth Checking Out. Android and iphone are consistently dominating orthodox rival Nokia who captured most of the market couple of years back.
Smart phones are getting better day by day thus numerous number of applications have been introduced during past few years. These applications are not only grabbing the attention of mobile developers all over the world but most of the developers are seeking good career opportunities in mobile development. Nowadays Android and iPhone are in huge demand and the Updation which have been evolved in past few years in smart phones also encouraging developers to develop new iphone applications. Here at SkyTechGeek we understand the need of mobile developers and brought our audience 15 top tutorials for iphone app development that will help them to develop, learn and create interesting and useful iPhone apps. These tutorials are for beginners and advanced level developers. 1. This tutorial shows how to create a webpage that is formatted specifically for the iPhone. 2. 3. 4. iPhone Application Development - Tutorials, Interviews, Resources and Competitions for the iPhone Developer.
How to Build an iPhone App Without Hiring a Developer. Tools to help you build and publish a competitive app, with no programming knowledge required You want your business to get in on the hot iPhone app trend.
Problem: You can't shell out thousands of dollars for a developer, and you don't want to learn Cocoa, the iPhone's programming system. Solution: Have an online service build one for you! There are now some great tools available to help you build and publish a competitive app, with no programming knowledge required -- and at a fraction of the cost of hiring a developer. Recent Articles From Business Insider. Knowing Your Demographics: Who Should Mobile Devs Be Building For? There have been a lot of stats thrown at developers this week.
The Pew Internet and American Life Project said that 50% of all U.S. adults have apps on their cellphones either coming from downloads or pre-loads by the carriers. Nielsen says that 43% of all U.S. adults have smartphones and that 62% of adults aged 25-44 have smartphones. This all brings us to a question all mobile developers should be asking themselves: Who are you developing for? Coders have a habit of focusing on functionality. They see that something can be done in the environment they are working in and then go about connecting the codes, SDKs and APIs to create a dynamic app. Developers, coders and hackers often are not business savvy. Thinking of coming out with an app aimed at teens on the go? The smartphone sweet spot, and by extrapolation, the target for mobile developers looking to make money, is the adult market of college educated, urban and suburban males.
It Takes 30,000 Downloads a DAY just to Crack the iOS App Store's Top 10. Outsource Your Mobile App Business. If your goal is to make a living from selling apps then outsourcing aspects of your mobile app business could be the single best decision you make.
Through outsourcing you can execute more effectively than is possible on your own. The aim of this post is to give an overview of why I outsource and an introduction of how you can do it yourself. Outsourcing allows you to : Grow your business to the next level without significant riskSpend more time doing things you like or are good atSpend less time doing things you don’t like or suck atStill do important activities even when you lack the time or skills(marketing anyone!) Improve your management skillsGet access to skills currently not in your team As an indie developer you most likely work alone or in a small team with very limited time and resources. Why Do I Outsource Over the last 10 years I have outsourced around 20-30 projects.
Just over a week ago I started my first mobile game – Monster Splash. Beginning Twitter in iOS 5 Tutorial. This post is also available in: Korean Enjoy some pan-seared Twitter in the iOS 5 Feast! Update 10/26/12: Check out this new version fully updated for iOS 6 ! Note from Ray: This is the eleventh iOS 5 tutorial in the iOS 5 Feast ! This tutorial is a free preview chapter from our new book iOS 5 By Tutorials .