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Cocoa Dev Central: Learn Objective-C

Cocoa Dev Central: Learn Objective-C
Objective-C Objective-C is the primary language used to write Mac software. If you're comfortable with basic object-oriented concepts and the C language, Objective-C will make a lot of sense. If you don't know C, you should read the C Tutorial first. This tutorial is written and illustrated by Scott Stevenson Copyright © 2008 Scott Stevenson Calling Methods To get started as quickly as possible, let's look at some simple examples. [object method]; [object methodWithInput:input]; Methods can return a value: output = [object methodWithOutput]; output = [object methodWithInputAndOutput:input]; You can call methods on classes too, which is how you create objects. id myObject = [NSString string]; The id type means that the myObject variable can refer to any kind of object, so the actual class and the methods it implements aren't known when you compile the app. In this example, it's obvious the object type will be an NSString, so we can change the type: NSString* myString = [NSString string]; Accessors

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How to Write an iOS App That Uses a Web Service If you're new here, you may want to subscribe to my RSS feed or follow me on Twitter. Thanks for visiting! Web Services + iPhone Apps Rule! As an iOS developer, you often need to use a web service from your app. Sometimes you need to use a web service that someone else has written, and sometimes you need to use one of your own! A GNUstep Programming Tutorial TimeMachine Single Window Application Single window application is one of the most commonly used application type. Here, a TimeMachine application is made to demonstrate several techniques of GNUstep programming. Outlet and Action I'll write an application which show the current time with a button to update.

Puppy Linux Community - Home Download Latest Release → Quirky Xerus 8.1 for the Raspberry Pi is here! → Get Tahrpup (Ubuntu-Compatible) → Get Slacko (Slackware-Compatible) → Get Windows Installer (EXE installer) → Download old version How-to Use Property List Files to Store Data in iPad or iPhone App One of vital elements of any iOS application is the info.plist file. This graph based file contains important configuration settings for your application to run normally. For instance you set the icons your app requires in the plist file. The same can be said for the storyboard, an entry must be made to tell the application which element to load first. This property list file is not only used by app but also by the App Store to determine if the application is properly configured to be included in the App Store.

Why a 64-Bit Version of Windows 7 Might Be a Better Choice For those of you that installed a 32-bit version of Windows, you have my condolences. Otherwise, you really made the right choice based on a number of reasons. I think it’s important in this day and age to run any operating system on the highest possible bit width offered, but there’s a few reasons particular to Windows 7 that might make its x64 version more advantageous than simply running on 32-bit x86 microprocessor architecture. Not so long ago, people were making a transition from 16-bit to 32-bit. Today, there are still many people running 32-bit versions of their operating systems when 64-bit editions are available for fear that their old applications might not run on the newer version. To those who know how processor registries work, this would be like worrying whether you can put the same amount of clothes in your new washing machine with a 9 kg capacity as you did with the older one that had a 7 kg capacity.

IPhone URL Schemes - akosma wiki From akosma wiki This page centralizes code samples for URL schemes available in many iPhone applications, not only in Apple's but in many others. It also includes programming tips and references about implementing apps registering or consuming URL schemes. A software development firm provides software services to both big and small organizations In today’s world, a lot of companies are updating their internal software or intend to build some kind of software application. This is where a software development firm is handy. While you could opt to hire someone to do the job internally, the risks, responsibilities and time involved in it could end up costing you more than hiring a software development service provider. With technology advancement, people are trying to shoot to the next level. This is why a software development firm has become very much in demand in recent years. Moreover, software developers have flooded the market.

Launching Your Own Application via a Custom URL Scheme Note: Since the introduction of custom URL schemes, this post has consistently been the top read content on the blog. Although much is the same, there are a few nuances that have changed. This is a re-write of the original post, updated for the latest iOS and Xcode versions. One of the coolest features of the iPhone/iOS SDK is an application’s ability to “bind” itself to a custom URL scheme and for that scheme to be used to launch the application from either a browser or from another application. Registering a Custom URL Scheme

Make iPad Icons Home > Tutorials > Make iPad icons In this topic, we'll learn how to create icons for iPad applications. The topic is based on the Apple article named "iPad Human Interface Guidelines: Creating Custom Icons and Images". Click here to read the original document. Introduction

How to Parse HTML on iOS Learn how to parse (or scrape) HTML on iOS! This is a blog post by iOS Tutorial Team member Matt Galloway, founder of SwipeStack, a mobile development team based in London, UK. You can also find me on Google+. Let’s say you want to find some information inside a web page and display it in a custom way in your app.

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