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

The article turns from @implementation Son:father -(ID) init{ self = [super init]; if (self) { } return self; } This is an ordinary to initialization method that invokes the Init implementation of the parent class before the

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

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 " @

This evening began to see the "Objective-c Program Design (4th edition)" This book (Oschina is doing this book review activities, see here for details), so far to see the 7th chapter, so want to try to write two simple program compiled run-and-run

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

I. Polymorphism1. Polymorphism concept, definitionWhat is polymorphism: polymorphism is the multiple forms of a certain class of things;Representation: Animal *ani = [Dog new];Polymorphic conditions: 1. There is an inheritance relationship 2.

Variable group construction method //The definitions of the two sentences below are immutable //Nsmutablearray *marray1 = [[Nsarray alloc]init];//Nsmutablearray * marray1 = @[@ "xx", @ "yy"];     // default array has no elements nsmutablearray *

------Android Training, Java training, look forward to communicating with you! ----------1.OC Memory Management1) Scope: Manage any inherited NSObject objects that are not valid for other basic data types (heap area), or cause memory leaks2)

The copies between objects in the objective-c are divided into shallow and deep copies. Plainly, a shallow copy of a non-container class is the address of the copied object, and the contents of the object are still a copy, and no new memory is

#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 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

 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

Create the header file (. h) and export the constants:// Constants.hNSString *constNSString *const MySecondConstant;//etc.(You can use extern instead of Foundation_export when the code is not used for mixed-C + + programming.)Define the source file (

Transferred from: http://blog.sina.com.cn/s/blog_71715bf80101bnvn.htmlArithmetic functions "Arithmetic function" Name of function Description int rand () Random number

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

Prior to learning C + +, or Java, there was a visibility issue, and this article discussed the visibility of declared member variables on object methods (minus methods) and class methods (plus methods).(a) Code one: member variables are visible to

ARC Features and judging criteria/* ARC's judging criteria: as long as there is no strong pointer to the object, it will release the object 1.ARC feature 1> does not allow calls to release, retain, Retaincount 2> allow override Dealloc, but does not

More recent time, want to learn iOS development, after a multi-study or decided to learn from OC, from the basic OC grammar slowly toward the cocoa framework of learning.OC's Introductory language I I choose the most new version of the OBJECTIVE-C

This log is used to record the problems encountered during the learning process. "Objective-C advanced programming" is a great book written by the People's post and telecommunications Publishing House. Japanese authors are very careful about the