Objective-C

In the actual project development, two-dimensional arrays are often used in the data structure. The two-dimensional array in OC is also created by a one-dimensional array, and today we'll explain how to use a two-dimensional array in OC. "Initialize

We know that OC can be mixed programming with C, and similarly, the string of C and the string of OC are very similar. In some cases, mutual conversion is required. Now let's make this happen: #import int main (int argc, const char * argv[]) {

first, the support of nullability detection 1. IntroductionIn the previous OC, the development often encountered because a method should return an instance object and actually returned empty caused the application to crash, and Nullability's

One, dot syntax(i) Cognitive point grammarDeclare a person class:#import @interface person:nsobject{ int _ Age // default is @protected }-(void) Setage: (int) age; -(int) age; @endView CodeImplementation of the person class:#import " Person.h " @

Objective-c's protocols and proxies are one of the most widely used features, and can be said to be ubiquitous in the development of the Apple series. In fact, many people do not know the principle behind it. In fact, simply put, this is the classic

One, installation of the IDE (Code::Blocks)We use Code::Blocks as the IDE, its installation package can be downloaded from all over the web, no special requirements for the version. The author uses the version of 16.10 (link: https://pan.baidu.com/s/

In the previous article, we introduced the runtime is what, is a theoretical introduction, you read the last article is very urgent to know what the runtime is capable of? Don't worry, this blog is going to explain how the runtime is applied to the

Reprint, quote Please specify the source!Class of Objective-cI. Introduction to grammar 1, Class 1),. hFiles: Classes ofStatementFile that declares instance variables and methods. The declaration of the class uses the keyword@interfaceAnd@end。 The

1 //2 //main.m3 //L02HELLOOBJC4 //5 //Created by Jinxin on 15/11/25.6 //copyright©2015 year jinxin. All rights reserved.7 //8 9 #importTen #import "AppDelegate.h" One A //the famous part of the class - @interfacehello:nsobject{ - intnum; the } -

Objective-c class and Object summary:header files. h files: (header file)Declaration of class: @interface class Name: Name of the parent classConventions for class names: 1, capital letters, such as personParent class: Usually NSObject, we can also

Artifice refers to a skill and a product that is too kit and useless.IMS refers to Instance method swizzling, which is confused by instance methods.The next section of code is an example of a instance method swizzling and a method swizzling://MAN.M-

#import "ViewController.h"@interfaceViewcontroller () @property (nonatomic,strong) Nstimer*timer; @property (nonatomic,strong) Nstimer*Mousetimer, @property (nonatomic,strong) Nsmutablearray*arr; @property (nonatomic,strong) Nsmutablearray*Hit ;

directory of this document Objective First, the traditional get method and set method Second, using point syntax instead of the traditional get method and set method Third, point grammar and self trap 41 Little tips.

Objective-c with the upgrade of Xcode 7 brings a lot of new features, of course, the most important update is the introduction of Objective-c's lightweight generics, specifically the Objective-c class of lightweight generics. In addition, there is a

 Objective-c Sunflower Treasure Book First Heavy (internal)--Class and objectTransferred from: http://husbandman.diandian.com/post/2012-08-17/40036035008Objective-c Sunflower Treasure Book First Heavy (internal) – Classes and objectsRemember: To

One, memory management of the typeEveryone has been to the library, and the books in the library can be borrowed. Let's imagine a scenario where everyone goes to borrow books, but no one has ever returned a book, so finally, the library will go

With regard to the property of Objective-c, many novice iOS developers will be confused, including experienced iOS development programmers,Because Objective-c's property, say much, say less but also a lot, from MRR (Manual Retain Release) to Arc

In a nutshell, a constructor is a function of initializing an object when it is created, initializing some of the member variables in the object, and the destructor is doing some cleanup work on the object being deleted, that is, the specialized

 How to use static variables in Objective-cThe use of static variables in objective-c is what this article describes,objective-c supports global variables , there are two main ways of implementation: the first and C + +, using the "extern" keyword;

What about the first iPhone application in objective-C syntax? If the original Yusong Momo article is reprinted, please note: It is reprinted to my independent domain name blogYusong Momo program Research Institute, Original address: