Objective-C

Like to read some Open-source project source, always will find that the great God's code always have some short and efficient macro definition, click to see, find obscure, not to mention learning, sometimes understanding is a difficult, but the

For a language to learn, individuals feel that the most important is its grammatical format and those keywords. Because for most of the basic language now, each language is a way of thinking to communicate with the computer. Therefore, in fact,

Get the iphone's IMSI serial number #include #define PRIVATE_PATH "/system/library/privateframeworks/coretelephony.framework/ Coretelephony " -void Getimsi () { #if! Target_iphone_simulator void *kit = Dlopen (private_path,rtld_lazy);

Both Android and iOS Development support C + + development and can be used in a set of code multi-platform. At the same time, C + + difficult to decompile the characteristics of the Android development can bring code confidentiality, and another

Chapter No. 04 Types and dynamic binding of objects An important feature of OBJECTIVE-C is its dynamic nature, which describes the dynamic type of objective-c, dynamic typing, and dynamically binding. 4.1 Dynamic Binding 4.1.1 What is dynamic

1th: Understanding the origins of Objective-c language 1. Message Structure of OBJECTIVE-C OBJECTIVE-C uses "message structure" instead of "function call". The key difference between a message structure and a function call is that the language in

We usually do map positioning, mainly by latitude and longitude to accurately locate a location.But, we are human ah, we are not satellites AH.The user on the map to find a place, we can not tell him, this place is longitude how many degrees,

1.NSLog (@ "Hello world!"); /Print the function of the statement, the string that needs to be printed is placed after @.NSLog (@ "is%d and%d different?%@", 4,4,@ "YES");2. square brackets have two functions:1) Accessing array elements2) is used to

In Objective-c, defining a class requires two parts: the first is the interface (interface), and the second is the implementation (implementation). interface to the interface file, and the implementation corresponds to the implementation file. The

An object is an item. Object-oriented programming can be seen as an artifact and something you want to do with it. This differs from the C language in that C is often referred to as procedural language. In C, it is usually the first thing to think

After a period of iOS development using the Objective-c language, it was found that its language base was relatively weak and began to compensate for its shortcomings. I found that after using a language, many of the principles behind it would find

———————————————————————————————————————————Memory management(1) Memory management of OBJECTIVE-CThe stack area holds the local variable (because the basic data type occupies the storage space is fixed, by the system to allocate, we do not need to

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At the time of making a multi-graphic example of an OOP of OC. Xcode unprovoked report must explicitly describe intended ownership of an object array parameter"Exception information, check the code a few times or the compiler error, After looking

http://www.tekuba.net/program/335/ Main references in this series:Objective-c Runtime ReferenceObjective-c Runtime Programming GuideMajor documents involved: Objc/message.h,objc/objc-api.h,objc/objc.h,objc/runtime.hCool bar [tekuba.net] Use the

Main references in this series:Objective-c Runtime ReferenceObjective-c Runtime Programming GuideMajor documents involved: Objc/message.h,objc/objc-api.h,objc/objc.h,objc/runtime.hCool bar [tekuba.net] Use the Creative commons agreement "attribution-

A. dot Syntax The essence of point syntax is method invocation , not access member variable, compiler sees point syntax has two kinds of processing 1 . is an assignment, the assignment is to expand to the set method 2. Not assignment: expand

Get and set methods in Objective-cSet method1. Function: Provide a method to set the value of member variables to the outside world, can be in the method to face the parameters of the corresponding filter2. Naming conventions:1> method name must

  Original article address: Http://blog.csdn.net/kindazrael/article/details/8108868 In C, Preprocessor is a powerful tool that makes your code easier to read and modify. With preprocessing code, you can redefine a part of the code to make your code