Objective-C

IOS7 before Objective-c, JavaScriptUIWebViewObject has the following methods - (NSString *)stringByEvaluatingJavaScriptFromString:(NSString *)scriptThe method can execute JavaScript a string and return the return value of the string type. For

Important knowledge point personal understanding recordThe first article: OC is the message structure language, runtime parsing, compile-time not careArticle Two: Introduction of the head file try not to. h file (compilation trouble), where to

As alocal variable:returnType (^blockName)(parameterTypes) = ^returnType(parameters) {...};As a Property:@property (nonatomic, copy) returnType (^blockName)(parameterTypes);As amethod Parameter:-

1. What is a property? What do attributes do for us? Please explain it in detail.(1) The ① property is the syntax defined by OBJECTIVE-C 2.0, which provides the default implementation of setter and Getter methods for instance variables, ② to some

Directly on the code:////MAIN.M////Created by on 15/4/2.//Copyright (c) 2015. All rights reserved.//#import #import "Tire.h" intMainintargcConst Char* argv[]) {//nsstring class /* * Learning system classes need to grasp a few points: * 1,

Main.m1 #import2 /**3 * Test the difference between the pointer type parameter and the common parameter4 *5 * @param A pointer-type parameter6 * @param b general Parameters7 *8 * @return (pointer type parameter +2) + (normal parameter +2)9 */Ten

A brief introduction to the current GitHub Top 100 project makes it easy for beginners to quickly learn about the current objective-c on GitHub.If you have any questions, you can contact me via Weibo @ Li JinGitHub address here, welcome to Star and

Objective-C looks like a C language or is related to a C language. It is true that objective-C is a superset of C language. It extends the C language and adds object-oriented support based on the C language, added its own unique features. Therefore,

After using @ interface to declare a class, you can use @ implementation to implement the class. The syntax for class implementation is as follows: @ Implementation class name method implementationCode; @ End; Instance: @ Implementation

Today, I saw an article titled "objective-c" in the garden. 2.0 with cocoa Foundation --- 5, class type, selector and function pointer ", I have made a wonderful speech and can't help but put it Code Add notes here for future viewing. My personal

First, introduce the framework audiotool.   Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> - (ID) initwithpath :( nsstring * ) Path{Uint32 size, maxpacketsize; Char *

Xcode: You can regard it as a development environment, just like Visual Studio, netbeans, or sharpdevelop. Meaning. You can separate the functions that interface builder considers to be used to draw interfaces in Visual Studio.Program.Objective-C:

It is found that many beginners cannot differentiate bool, bool, and class types. Today, I am free to write a blog post to differentiate them. 1. bool is a boolean type of C language, with true and false, bool is a boolean type of Objective C

1. If you want to know the specific data type in nsnumber, the @ encode keyword will be used. Use @ encode (Atype) to return the C string of this type, represented by const char. For example, @ encode (INT) returns I; @ encode (float) returns

1. Nil A null pointer pointing to an objective-C object RepresentsObjectNull: nsstring * STR = nil; (# define nil (ID) 0 )) 2. Nil A null pointer pointing to an objective-C Class Object. RepresentsClassObjectNull: Class class = nil; 3. null The

Http://www.cocoachina.com/macdev/objc/2011/0124/2602.html   In the class implementation of objective-C, we often see the two keywords "self" and "super". Taking the previous OOP language experience as an example, C ++ assumes that self is equivalent

In addition to using objective-C on MAC systems, you can also download and install the gnustep and objective-C environments on Windows. What is gnustep and its usefulness, here is a brief introduction: gnustep provides APIs and tools similar to

Objective-C beginner's Guide (version 2nd)Basic InformationOriginal Title: Objective-C for absolute beginners: iPhone, iPad, and Mac programming made easy, Second EditionAuthor: (US) bernett (Bennett, G.) (US) Fisher (Fisher, M.) (US) lies (Lees, B.)

Key Points of http://www.cnblogs.com/gugupluto/p/3159733.htmlObjective C Runtime Technology Preface: The runtime Technology of Objective C is very powerful. It can obtain and modify various class information at runtime, this section describes how to

Many programmers who want to develop IOS, or who are developing IOS, have done Java or C ++ before. The first time they see Objective-C code, they will have a headache, the syntax of Objective-C code is very different from that of Java and C ++.