In the project right-click Add a swift file, I added the Learnswift.swift add after Xcode popup ' whether to configure OC Bridge header file ' Prompt, click Confirm, the system automatically generates a project name-bridging-header.h file, mine is Learnswift-bridging-header.h.
Tips for configuring OC Bridge header Files Learnswift-bridging-header.h is essentially a header file for Swift, where all
(1) #import (2) The frame is stored in/applications/xcode.app/contents/developer/platforms/iphoneos.platform/developer/sdks/iphoneos.sdk/ System/library(3) An upgraded version of #import是 # include, which prevents duplicate imports.(4) NSLog already contains auto wrap.(5) The length of the nsstring in OC is calculated as the number of words rather than characters, such as @ "123 haha", the length is 5. The length value in the C language is 9 because a
Show.h#ifndef __ocday01__show__#define __ocday01__show__#include Show.c#include "Show.h" void Testtshow () { printf ("I am a function in the famous C file, who dares to invoke? "). haha \ n ");}MAIN.M (OC source file) 6-"Understanding" access to OC source files, functions in C source files #import Oc-03-oc access
[Learning notes] [OC language] The first OC program, learning notes oc
1. # purpose of import:1> like # include, copy the file content2> automatically prevents duplicate copies of File Content2. # import NSObjCRuntime. h contains the NSLog function declaration.3. Path of the header file of the Foundation framework1> right-click Xcode. app --> display Package cont
OC learning --- overview, oc --- OverviewPreface
I finally started the OC learning article. I had been stranded for work, but recently, for various reasons, I felt that I had to start the iOS development journey, otherwise it will be old. Because we have been working on Android before, it is not so hard to learn iOS. Of course, we know that Android is supported b
OC, oc LanguageOC language-07-OC language-Foundation framework structure
Nsange/CGRange
Used to indicate the range of an element in another element. nsange is equivalent to CGRange.
There are two attributes:
NSUInteger location: indicates the position of one element in another element.
NSUInteger length: the length of the element.
WebViewJavascriptBridge source code exploration-view the interaction process between OC and JS and between wkwebviewjs oc
Today, I checked the source code of the third-party library WebViewJavascriptBridge that implements interaction between OC code and JS Code. We know that oc calls js methods. The system provides the
OC-class, oc-Class Method
1. header files# Include # Import
Difference: # import commands are faster and more efficient. # The include command tells the compiler to copy and paste the contained content to the target file. # Import checks whether the file has been imported or included in the target file.
Then observe the two HeadersFoundation. h we call it the main header file. The main header file copies t
Turn: Original address: http://blog.csdn.net/fengsh998/article/details/34440159After the swift language comes out, it may be possible for new projects to be developed directly using swift, but there may be situations in which some classes that have been written in OC or packaged modules are not ready to be written again in Swift, so use a mash-up. This is allowed in iOS.First of all, first of all, research in the same project directory under the mixed
GoalThis paper introduces the interaction between JS and OC using the Javascriptcore.framework framework published by Apple in IOS7. The goals we want to achieve are:
OC invokes the JS method on the Web page
The OC method in the Web page JS call app
Javasciptcore.framework Framework Introduction
JavaScriptCore is an important part of We
An Effective Method for writing high-quality OC code and writing high-quality oc code1. Write this file only for your own memory, and there are related PDF files. If you need to leave a mailbox .. 2. Try to introduce as few header files as possible in Class header files.
Do not introduce header files unless necessary. In general, you should use the Forward Declaration in the header file of a class to ment
OC-class definition and oc-DefinitionWe have already introduced a program HelloWorld: Keep in OC.
The biggest difference between OC and C is that it has the Object-Oriented function. When it comes to object-oriented, we have to talk about the class concept. If we have learned Java, so there is no stranger to the conce
I. INTRODUCTION of OC 1. IntroductionIt is based on the C language and adds a layer of object-oriented syntaxOC fully compatible with C languageYou can mix C code, even C + + code, in OC codeApplications that can use OC to develop Mac OS x platform and iOS platform2. Keywords1> basically all the keywords are beginning with @2> keywords@interface, @implementation,
After learning Java, C + + language, and then learn OC language, although also is the object-oriented language, but OC language still gives us a very "weird" feeling. This is mainly because the OC language itself has its own unique naming and use methods. Summing up the use of Java syntax and OC syntax, we will find th
OC-objective concepts and usage, oc-category concepts
The previous article introduced the use of the @ class keyword in OC.
First, let's take a look at the scenario. If we want to expand the functions of a class, what should we do?
For object-oriented programming, we will first think of inheritance, but there are two problems with inheritance:
First, the premise
"IOS development" "OC" 00, ios "oc 」
1. OC Introduction
On the basis of the C language, a minimum object-oriented syntax is added. It is fully compatible with C language. It can be mixed into C language code or even C ++ code in OC code; you can use OC to develop Mac OS X a
Mutual calls between JS Code and OC code, js Code oc
JS calls OC
Many applications call web pages more or less to achieve brilliant results. The so-called JS call OC... for example, there is a button on the web page.
Click the button to jump to the page. The jump is implemented by the
OC, Zhongshan oc
OC-First Class
Class Name: Car
Attribute: Number of tires, speed
Behavior: Run
Write a complete Class: class declaration and implementation
1. Class Declaration
Code:
// NSObject is added to the Foundation framework
# Import
// NSObject base class
@ Interface Car: NSObject
{
// Declare object attributes (member variables, which are initial
Interaction between JS and OC in UIWebView: Use of WebViewJavascriptBridge and interaction between wkwebviewjs ocI. Summary
Nowadays, many applications are released on multiple platforms, so many programmers are beginning to use the design model of Hybrid App. It is to embed a webpage into an app. As long as you write a webpage code, you can run it on different systems. In iOS, most apps use WebView to load webpages. Due to functional requirements and
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