Objective-C

Collection type, including nsarray, nsdictionary, and nsenumerator objects for traversal. Create an unchangeable array object: Nsarray * ary = [nsarray arraywithobjects: @ "title", @ "content", [nsnumber numberwithint: 2], nil]; Note that

A New Keyword @ dynamic is added to objective-C 2.0 to define dynamic attributes. Compared with @ synthesis, dynamic attributes are not automatically generated by the compiler, setter, or getter, but are dynamically added at runtime. Generally,

I 've been learning objective-C Programming for a while, and now it's over. Next, let's start programming in IOS. Previously, to avoid forgetting, I decided to spend a few days summing up what I learned before, saving my time for forgetting.

In Java, we often use Singleton mode. These design modes are also commonly used in iOS development. Recently, we are also considering using Singleton mode in iOS development. In objective-C. the M file defines static variables to indicate global

ArticleDirectory 1. Preface 1. Preface I believe that the iPhone will soon be released in China. Like the iPod Touch we can buy in China through regular channels, the iPhone is also an exciting product. When the iPhone is

Most beginners who have a basic development experience on other platforms are eager to see xcode. After seeing the interface builder, they are eager to get started with the objective-C syntax, the first thought becomes daunting. Okay, I'm talking

I am too lazy to write this Summary. I directly transferred it to an article on the Internet.Article: Http://blog.csdn.net/favormm/article/details/6928432 First look at the two runloop example, source: http://paste.lisp.org/display/86524 first: #

Protocol in objective-C Protocol In short, it is a list of methods. The declared methods can be implemented by any class. This mode is generally called the (Delegation) mode. In iOS and OS X, Apple uses a large number of proxy modes to implement

Declare in the header file: @property (nonatomic,strong) NSString * str; In oC, this line of code indicates a property named Str. Declare in the implementation file. M: @synthesize str; When the class in OC declares this sentence, two methods

Attribute Definition @ Interface nothin: nsobject @ Property nsstring * prop; @ End   Access attributes Nothin * nothin = [nothin new]; // Get [Nothin prop]; // Set [Nothin setprop: @ "nothin"]; After @ property is declared, the compiler

Http://foredoomed.org/blog/2014/02/24/object-modeling-of-objective-c/ Objective-C is an object-oriented programming language formed by the Smalltalk message mechanism added to C. It is mainly used by Apple to develop Mac OS X and iOS operating

Objective-C objc_class introduction nsobject In objective-C, nsobject is the root class of most classes. @interface NSObject { Class isa OBJC_ISA_AVAILABILITY;} It has an ISA attribute and its type is class. Apple has made the objc runtime code

---------------------- ASP. NET + unity development,. Net training, and hope to communicate with you! ----------------------  1. self1. self indicates who calls the current method. Two cases: Self appears in the object method, and Self represents

Some methods of string usage:   1. Create a dictionary nsstring variable string, and nsmutablestring immutable string. They are both objective objects. Char * STR is an array of letters. 2. String formatting: stringwithformat, which is used to

? ? The Singleton mode is a simple design mode. The design mode is not only for some programming language, but also for other OOP languages such as C ++, Java, and PHP, I first came into contact with the design model through the "design model. This

Build the objective-C compiling environment directory under the dragon core 8089d-debian7 Install Related Files Compilation parameter description Simplify command line parameters Actual compilation instance Simple Description:

First of all, to learn objective-C (hereinafter referred to as OC) Well, you must have the foundation of C language, because OC is a superset of C language and OC is a process-oriented language. [C language is an object-oriented language]. Many

1. What is a protocol? 2. Description and use of protocols and categories   1. What is a protocol? In objective-C, multi-inheritance is not supported, that is, a class cannot have multiple parent classes, but OC provides similar implementation

When we learn a new language, we always compare it with the familiar language to learn it, just like when we learn English, we must remember the Chinese meaning of words, to help us understand and remember words. The following compares Objective-C

C # sister:Why is the cost of memory space controlled by the operating system so high? I purchased a huge amount of memory space, and later found that it was actually on the hard disk! Virtual Memory! TMD! Aunt Objective-C:The operating system makes