JGMethodSwizzler 项目使用教程

JGMethodSwizzler 项目使用教程

JGMethodSwizzlerPowerful and easy to use Objective-C swizzling API.项目地址:https://gitcode.com/gh_mirrors/jg/JGMethodSwizzler

1. 项目的目录结构及介绍

JGMethodSwizzler 项目的目录结构如下：

JGMethodSwizzler/
├── JGMethodSwizzler/
│   ├── JGMethodSwizzler.h
│   ├── JGMethodSwizzler.m
├── JGMethodSwizzlerTests-OSX/
│   ├── JGMethodSwizzlerTests-OSX.m
├── JGMethodSwizzlerTests/
│   ├── JGMethodSwizzlerTests.m
├── JGMethodSwizzler.xcodeproj/
├── .gitignore
├── JGMethodSwizzler.podspec
├── LICENSE.txt
├── README.md

目录结构介绍

• JGMethodSwizzler/: 包含项目的主要源代码文件。
  • JGMethodSwizzler.h 和 JGMethodSwizzler.m: 实现方法交换的核心文件。
• JGMethodSwizzlerTests-OSX/: 包含 macOS 平台的测试文件。
  • JGMethodSwizzlerTests-OSX.m: macOS 平台的测试代码。
• JGMethodSwizzlerTests/: 包含 iOS 平台的测试文件。
  • JGMethodSwizzlerTests.m: iOS 平台的测试代码。
• JGMethodSwizzler.xcodeproj/: Xcode 项目文件。
• .gitignore: Git 忽略文件配置。
• JGMethodSwizzler.podspec: CocoaPods 配置文件。
• LICENSE.txt: 项目许可证文件。
• README.md: 项目说明文档。

2. 项目的启动文件介绍

项目的启动文件主要是 JGMethodSwizzler.h 和 JGMethodSwizzler.m。这两个文件包含了方法交换的核心实现。

JGMethodSwizzler.h

#import <Foundation/Foundation.h>

@interface JGMethodSwizzler : NSObject

+ (void)swizzleClass:(Class)class instanceMethod:(SEL)originalSelector withReplacement:(SEL)replacementSelector;
+ (void)swizzleClass:(Class)class classMethod:(SEL)originalSelector withReplacement:(SEL)replacementSelector;

@end

JGMethodSwizzler.m

#import "JGMethodSwizzler.h"
#import <objc/runtime.h>

@implementation JGMethodSwizzler

+ (void)swizzleClass:(Class)class instanceMethod:(SEL)originalSelector withReplacement:(SEL)replacementSelector {
    Method originalMethod = class_getInstanceMethod(class, originalSelector);
    Method replacementMethod = class_getInstanceMethod(class, replacementSelector);
    method_exchangeImplementations(originalMethod, replacementMethod);
}

+ (void)swizzleClass:(Class)class classMethod:(SEL)originalSelector withReplacement:(SEL)replacementSelector {
    Method originalMethod = class_getClassMethod(class, originalSelector);
    Method replacementMethod = class_getClassMethod(class, replacementSelector);
    method_exchangeImplementations(originalMethod, replacementMethod);
}

@end

3. 项目的配置文件介绍

项目的配置文件主要是 JGMethodSwizzler.podspec 和 .gitignore。

JGMethodSwizzler.podspec

Pod::Spec.new do |spec|
  spec.name         = "JGMethodSwizzler"
  spec.version      = "2.0.1"
  spec.summary      = "An easy to use Objective-C API for swizzling class and instance methods."
  spec.description  = <<-DESC
                       JGMethodSwizzler provides a simple and powerful API for swizzling class and instance methods in Objective-C.
                       DESC
  spec.homepage     = "https://github.com/JonasGessner/JGMethodSwizzler"
  spec.license      = { :type => "MIT", :file => "LICENSE.txt" }
  spec.author       = { "Jonas Gessner" => "contact@jonasgessner.com" }
  spec.platform     = :ios, "5.0"
  spec.source       = { :git => "https://github.com/JonasGessner/JGMethod

JGMethodSwizzlerPowerful and easy to use Objective-C swizzling API.项目地址:https://gitcode.com/gh_mirrors/jg/JGMethodSwizzler