New PDF release: Beginning Mac Programming: Develop with Objective-C and

By Tim Isted

Beginning Mac Programming takes you thru concrete, operating examples, supplying you with the middle innovations and ideas of improvement in context so that you could be able to construct the purposes you've been imagining. It introduces you to Objective-C and the Cocoa framework in transparent, easy-to-understand classes, and demonstrates how one can use them jointly to jot down for the Mac, in addition to the iPhone and iPod.

You'll discover the most important developer instruments like Xcode and Interface Builder, and examine the rules of object-oriented programming, and the way reminiscence, info, and garage paintings that can assist you construct your software.

If you've ever desired to boost software program for the Mac, this ebook is for you.

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Read Online or Download Beginning Mac Programming: Develop with Objective-C and Cocoa (Pragmatic Programmers) PDF

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Additional info for Beginning Mac Programming: Develop with Objective-C and Cocoa (Pragmatic Programmers)

Sample text

We will be talking in great depth about memory If you’re wondering why Apple has chosen the letters NS for its framework classes, they actually stand for “NeXT Step,” a computer platform that preceded Mac OS X and from which quite a lot of functionality was ported. 2. m file in the previous chapter, there was a single line of code inside those curly braces: { } return NSApplicationMain(argc, (const char**) argv); Notice the NS in there, on the front of the word NSApplicationMain? This code actually creates an instance of an application object that is defined for us by the Cocoa framework.

The method we need to write should tell us when the object is first initialized. It is the method called in response to the init message, currently defined by the NSObject base class implementation. So that our code is called instead, we need to make sure the name and relevant information on this message is exactly the same as that from the interface for NSObject. So, select File > Open Quickly... h) that we looked at before. Open this file once more, and scroll down the contents until you find the relevant lines inside the NSObject Base Object interface that define the messages.

One Final Thing For this to work, we need to add one final line of code at the end of this method; we’ll find out exactly what this line does in a couple of 53 W RITING C ODE FOR O UR O WN O BJECTS chapters’ time. After the NSLog call, add the following line of code (again, don’t forget the ending semicolon): - (id)init { NSLog(@"Hello World! " ); return self; } Make sure that the Debugger Console window is still visible, and click Build & Run. When the application is run, you should find that our notifying message appears in the log: Running...

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