[iOS]使用MonkeyDev完成Hook

一、确定目标

先定个小目标，使用七猫举个例，去移除小说阅读页底部广告和章节之间的广告。

二、HOOK

1. 创建MonkeyApp项目导入砸壳包

2. 使用Reveal工具确定“底部广告”和“章末广告”的视图名称

底部广告

View Controller:
Class: QMReader.YYReaderContainer
Memory Address: 0x107b1d200

NSObject:
Class: QMReader.YYReaderBottomBannerView
Memory Address: 0x11af3f700

 章末广告

View Controller:
Class: QMAd.YYReaderInsertAdVC
Memory Address: 0x108e81600

3. 使用Hopper Disassembler工具分析Mach-O确定类名

YYReaderContainer对应的类名为_TtC8QMReader17YYReaderContainer
YYReaderBottomBannerView对应的类名为_TtC8QMReader24YYReaderBottomBannerView

 YYReaderInsertAdVC对应的类名为_TtC4QMAd18YYReaderInsertAdVC

4. 项目中使用CaptainHook

（1）CaptainHook 使用方法

hook函数

/// hook类
CHDeclareClass(<#name#>)/// hook类方法
CHOptimizedClassMethod0(<#optimization#>, <#return_type#>, <#class_type#>, <#name#>)/// hook对象方法
/// optimization 当前self或者其他
/// return_type 需要传入什么类型
/// class_type 传入哪一个类
/// name 属性名称
CHOptimizedMethod0(<#optimization#>, <#return_type#>, <#class_type#>, <#name#>)

新增函数

/// 新增属性
CHPropertyRetainNonatomic(<#class#>, <#type#>, <#getter#>, <#setter#>)/// 新增类方法
CHDeclareClassMethod0(<#return_type#>, <#class_type#>, <#name#>)/// 新增对象方法
CHDeclareMethod0(<#return_type#>, <#class_type#>, <#name#>)

构造函数

/// 构造函数
CHConstructor{// hook类CHLoadLateClass(<#name#>); // hook方法 (CHClassHook0、CHClassHook1... 数字表示有几个参数) CHClassHook0(<#class#>, <#name#>) // 添加属性时，需要这样写对应的set，getCHHook0(<#class#>, <#name#>)
}

（2）完成hook

#import "MonkeyDevTestDemoDylib.h"
#import
#import #pragma mark ----申明类可以调用属性和方法----CHDeclareClass(_TtC8QMReader17YYReaderContainer)
CHDeclareClass(_TtC8QMReader24YYReaderBottomBannerView)
CHDeclareClass(_TtC4QMAd18YYReaderInsertAdVC)#pragma mark ----实现方法----/// 隐藏底部广告后，改变阅读区frame。
CHOptimizedMethod1(self, void, _TtC8QMReader17YYReaderContainer, viewDidAppear, BOOL, arg1) {CHSuper1(_TtC8QMReader17YYReaderContainer, viewDidAppear, arg1);UIView *view = [(UIViewController *)self view];NSArray *iArr = view.subviews;for (int i = 0 ; i CHOptimizedMethod3(self, void, _TtC8QMReader17YYReaderContainer, observeValueForKeyPath, id, arg1, ofObject, id, arg2, change, id, arg3) {}/// 例：hook类方法
CHOptimizedClassMethod0(self, void, _TtC8QMReader24YYReaderBottomBannerView, load) {NSObject *obj = (NSObject *)self;
}/// 隐藏底部广告
CHOptimizedMethod1(self, void, _TtC8QMReader24YYReaderBottomBannerView, initWithFrame, CGRect, arg1) {CHSuper1(_TtC8QMReader24YYReaderBottomBannerView, initWithFrame, arg1);printf("nadd3");UIView *view = (UIView *)self;dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{view.alpha = 0;view.hidden = YES;view.frame = CGRectMake(0, 0, 0, 0);[view removeFromSuperview];});
}/// 隐藏章末广告
CHOptimizedMethod1(self, void, _TtC4QMAd18YYReaderInsertAdVC, viewDidAppear, BOOL, arg1) {UIView *view = [(UIViewController *)self view];view.alpha = 0;view.hidden = YES;
}#pragma mark ----构造函数----CHConstructor{// hook类CHLoadLateClass(_TtC8QMReader17YYReaderContainer);CHLoadLateClass(_TtC8QMReader24YYReaderBottomBannerView);CHLoadLateClass(_TtC4QMAd18YYReaderInsertAdVC);// hook方法CHClassHook3(_TtC8QMReader17YYReaderContainer, observeValueForKeyPath, ofObject, change);CHClassHook1(_TtC8QMReader17YYReaderContainer, viewDidAppear);CHClassHook0(_TtC8QMReader24YYReaderBottomBannerView, load);CHClassHook1(_TtC8QMReader24YYReaderBottomBannerView, initWithFrame);CHClassHook1(_TtC4QMAd18YYReaderInsertAdVC, viewDidAppear);
}

最终效果如下：
demo:https://download.csdn.net/download/u012881779/87148657