Objective-C

A brief introduction of OC OC language on the basis of C language, added a layer of minimal object-oriented syntax, fully compatible with the C language, in the OC code, you can mix C, or even C + + code. You can use OC to develop applications for

IOS9 has added a lot of new features (What ' New in IOS 9.0-apple Developer), and the search feature is interesting to me. In a nutshell, there are three different ways to implement local and server two searches. Try it yourself. The second is to

"Basic Concepts" Key-value observation is a notification mechanism that enables an object to obtain changes to specific properties of other objects. The binding technique of the controller layer is to obtain the change notification of the model

Bought this "learn Objective-c on Mac", a start to buy looks very thin, 250 pages, after reading, found that the language has a lot of common place, the new features are from C + + and Java similar to come over, is changed a name, feel after seeing

We know that in C, using sizeof () to calculate the number of bytes occupied in the memory, after referencing string.h, use strlen () to calculate the length of the string (not including). In Object-c, the "Length" method can return the length of a

Objective-c expands C, and naturally many usages are consistent with C. For example, the floating-point number is converted into integers, there are four cases.1. Simple and rough, direct conversionfloat f = 1.5; int a; a = (int)f; NSLog("a = %d",a);

Original URL: http://tutuge.me/2015/03/11/Effective-Objective-C-%E8%AF%BB%E4%B9%A6%E7%AC%94%E8%AE%B0-Item-4-%E5%A6%82% e4%bd%95%e6%ad%a3%e7%a1%ae%e5%ae%9a%e4%b9%89%e5%b8%b8%e9%87%8f/ObjectiveIt takes time to write a blog than to read a book. =, the

[Proficient OBJECTIVE-C] pre-processorReference book: "Proficient objective-c" "Beauty" Keith LeeDirectory Proficient in objective-c pre-processor Directory Preprocessor overview Preprocessor language

The purpose of the class and extension is to extend a class.Category (category) in the Objective-cI. Definition and role of class purposeCategory is also called classification, the English category, in the absence of the original class. m file based

The main content of this section is OC Language Foundation, the OC is more familiar with the content of this article can not be read, basically is to translate the official documents.The main content of this article is about the language basis of OC,

NSNumber: is a class that handles numbers in OCNsvalue is a subclass of NSNumberHow to handle:Wrap the int,float,double into an objectBenefits of using NSNumber:You can save data of a basic data type to an array or dictionary//defining basic data

directory of this document I. Introduction to Grammar Ii. creating a class for the first OC with Xcode Third, code parsing of the first class Iv. Adding member variables V. METHODS of Addition Vi. comparison with Java

write in frontIt took some time in recent days to get to know something about the OBJECTIVE-C runtime, which involved the +load approach, such as method swizzling, which is usually done in the +load method of the category. Before the use of

Summary of practical methods of objective-c time operationget the end date according to the month/** * getmonthenddate * get the end date according to the month * * @param monthbegin month (yyyy-mm-dd HH:mm:ss) * * @return Nsdate/nil */+ (NSDate

The property is a objective-c keyword, used in pairing with @synthesize , to allow the compiler to automatically generate a method declaration with the same name as the data member. @synthesize is the implementation that is used to generate the

Objective-c, you can use #import and @class to refer to other types, but do you know what the difference is?@class is called Forward-class, you often see references through @class in the definition of a header file, because when you introduce a

---------------------- ASP. NET + unity development,. Net training, and hope to communicate with you! ----------------------I. foundation framework-struct 1. Basic Knowledge Foundation-basic framework. The Framework contains many common data types,

Maybe some of the above titles are well known, and all those who have learned PHP know that the subscript of the array in PHP allows us to customize it. The array in PHP is exactly a key-value pair. In oC, we need to use a dictionary for storage. Of

  Through the hello World Program on the front, we know how to include the header file and the basic usage of nslog. Starting from this section, we will explain how to declare and define classes through a simple class, and the length of member

The premise of this article is to understand Java or other languages. Because C has too much knowledge to complete, it is just a difference between Java and Java. I am planning to write about iOS development recently. iOS development is inseparable