Objective-C

No matter how perfect a class design is, it inevitably encounters an unpredictable demand, so how do you extend existing classes? Of course, inheritance is a good choice. But Objective-c provides a special way to extend the class, called catagory,

Introduction In project development, there are times when you need to use "some existing objects" that were previously developed, but the interfaces required in the new environment are not satisfied by these existing objects. How do you respond to

Now we'll use objective-c to define an actual class and learn how to use an instance of the class. Again, we will learn the process first. Therefore, the actual procedural paradigm may not be particularly practical, and those more practical content

The principle of KVO and Nsnotificationcenter in Objective-c is a good implementation of the observation pattern, the following code illustrates the usageThe use of KVO1- (void) Viewdidload {2 [Super Viewdidload];3 //additional setup after

Original URL: http://blog.csdn.net/totogo2010/article/details/8198694Introduced:Third-party libraries are indispensable when developing applications and can improve the efficiency of development. Some frequently used libraries, in the new project

[Proficient objective-c] object and message deliveryReference book: "Proficient objective-c" "Beauty" Keith LeeDirectory Proficient in Objective-c object and message passing Directory Object Creating objects

We often use structs to help us simply encapsulate basic data types in C/D + + development, and we can use structs to encapsulate data types in objective-c. At the same time, Cocoa Touch provides a nsvalue to help us better use structs in

Objective-C: created by Brad Cox in S, it integrates the portability, high performance, and object-oriented capabilities of the C language. NS: nextstep for short. In 1985, after Steve Jobs left Apple, he founded the next company to develop a new

As I writeProgramThe experience is not quite rich, and the understanding of object-oriented is still stuck in the state of knowing the principle but not how to use it efficiently, so here is a brief introduction to my understanding. object-oriented

Now we will use objective-C to define an actual class and learn how to use the class instance. Similarly, we will first learn the process. Therefore, the actual program examples may not be particularly practical, and more practical content will be

In the past two days, I want to see how the legendary iPhone application is made. Taking this idea as a preliminary attempt, the first problem encountered was the establishment of the Development Environment on Windows. After all, it was just fun to

BlockApple uses the extension Statement C, objective-C, C ++, and block. Currently, only Mac 10.6 and iOS 4 are supported. A block is composed of a bunch of executable programs. You can also perform a function without a name (anonymous function ).

Objective-C learning path delegation Mode Objective-CLearning pathDelegateThe mode is described in this article,DelegateMode is very important, such as the official interactive API,DelegateThis mode is very common, for example,

The code block is essentially similar to other variables. The difference is that the data stored in the code block is a function body. Using code blocks, you can pass in the number of parameters and get the return value just like calling other

Document directory Method swizzling is not Atomic Changes behavior of un-owned code Possible naming conflicts Swizzling changes the method's arguments The order of swizzles matters Difficult to understand (looks recursive) Difficult to

StatementYou are welcome to repost this article, but please respect the author's Labor achievements. repost this article and keep the statement in this box. Thank you.Article Source: http://blog.csdn.net/iukey This is probably because

Because the ios sdk is relatively low-level, developers have to do more physical work. Fortunately, there are many third-party class libraries that can be used to simplify a lot of unnecessary work. after careful discussion by the author team, they

Use of Public, protected, and private in objective-C Similar to C ++, the use of public, protected, and private exists in objective-C, but the forms are different. Here is a brief summary.1. @ public, @ protected, @ privateI personally

Objective-C advanced programming: IOS and OS x multithreading and Memory Management Original Title: Pro multithreading and memory management for iOS and OS X Author: (day) ben Yishu (day) Ben zhiyan Translator: Li Hua series name: Turing Program

Outline: Introduction Notes compared with the C Language Objective-c advanced features Development Tool introduction (cocoa toolkit features, framework, source file organization; XCode usage Introduction) Introduction: 1. objective-c is an extension