Objective-C

　　In the process of learning objective-c, the sensory array is a relatively large application domain in this learning aspect, so write this essay to summarize.First of all, unlike the C language array, objective-c is the array can only be used to

This article turns from http://blog.csdn.net/addychen/article/details/39525681Use objective-c for some time, has not been clear in the Objective-c attribute and instance variables, here summarizes, objective-c in the first instance variable, needs

Singleton mode may be one of the most commonly used patterns in iOS development, but due to the language characteristics of OC itself, it is relatively troublesome to write a correct singleton mode, here I would like to talk about the design of the

Git address: Http://git.oschina.net/feiji1hao/NZOCJSBridge Project is a middleware that provides objective-c and JavaScript communication for hybrid development Simply copy the catalog Nzocjsbridge to your project and bring your demo with you, and

1, the definition of the class:Add files in Xcode, choose Cocoa Class or Cocoa Touch classEnter the class name person and select the parent class as NSObjectThe following two files are generated by defaultPerson.h person.h// classandobject////

One, Objective-c polymorphic1. Concept: Same interface, different implementationsFrom different classes you can define methods that share the same name.Dynamic typing enables the program to determine the type of the object until it is

1. CategoryThe class is to add a new method to the existing class. However, you cannot add an instance variable. such as the system class, we do not see his. m files, so there is no way to directly add methods to implement.What are the usage

I. The internal implementation principle of attributesAssign property Internal implementationSetter Method:// setter方法@property (nonatomicassignNSString *name;- (void)setName:(NSString *)name{ _name = name;}Getter Method:// getter方法- (NSString

First of all we need to create a class, in order to facilitate understanding of the real life of the simulation to find intermediary rent house, so first create a person class1. Define the proxy protocol in Person.h and complete the proxy method

10.1 Assigning objectsSending a ALLOC message to a class allocates a large enough memory for the class to hold all the instance variables of the class, while Alloc also initializes the memory area to 0.Objects that have just been allocated are not

Part 1. Instance variables and properties The current trend is to use (_) as the starting character for the instance variable name. Explicitly declaring an instance variable in the implementation section is private Therefore,

Chapter 12th CategoryCategory:Naming method: Class name + category name.In Xcode, you can find the Objective-c category icon in the category of the new file.@interface sectionThe declaration of a category looks much like the declaration of a

Manual memory Management MRCFirst introduce the reference counter : To save the current object there are several things to use it (number)the role of the reference counter : To determine whether the object should reclaim memory space (if the object

Appearance modeThe design pattern is the same as the adapter, but it has a different granularity to the object control, and the adapter generally controls the docking of a system and client. The façade is used to abstract multiple systems working

Reference: http://blog.csdn.net/hahahacff/article/details/39839571After watching the video, the article summarizes the OBJECTIVE-C memory management that you understand.This article from the top to the next step in depth.ARC1. Basic operating

Memory managementRange : Any object that inherits NSObject is not valid for the base data typeprinciple: an integer associated with it is stored inside each object called the reference counter1. Basic operation of the counterWhen you create an

In OC, in addition to the while loop, there are additional for loops and do-while loops, which have different functions under different business logic. Can be compared with the C language and Java learning.(a) Code one:int main (int argc, const char

Objective-c Learning Journey The third Chapter OBJECTIVE-C class declaration, definition, instance, initialization class declaration// The compile-processing instructions for the class declaration begin with @interface, ending with @end, where

No matter which programmer, or what computer language to learn, the first program written is basically Hello world. Today we use OC to implement the first program: Hello World.Select Create a new project in Xcode, select OS X in the dialog box,

Objective-c the ProtocolProtocol In a nutshell, a list of methods that are declared can be implemented by whatever class, usually called (delegation) mode.In iOS and OS X, Apple uses a number of proxy modes to implement view (UI controls) and