1、明确需求

腾讯视频每次进入播放界面时都会先播放广告再播放正片，现在的需求就是去掉片头广告。

2、整理思路

整体方向和喜马拉雅暂停广告一致，找到广告的所属类，然后hook初始化方法返回nil。
第一步：找到需要hook的类
使用Reveal来查看一下广告View层级结构：

广告最外层的View是QNBPlayerVideoAdsView，且它所属的ViewController是QADMediaAdViewController，那么只要hook一下QNBPlayerVideoAdsViewController的初始化方法应该就可以去掉广告了。在QNBPlayerVideoAdsViewController的父类QNBBasePlayerViewController中找到了初始化方法：

- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3 withPageViewController:(id)arg4 withAddToParenViewControllerNow:(_Bool)arg5;
- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3 withParentEventViewController:(id)arg4 withAddToParenViewControllerNow:(_Bool)arg5;
- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3 withAddToParenViewControllerNow:(_Bool)arg4;
- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3 withParentEventViewController:(id)arg4;
- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3;

3、编写代码

尝试hook广告View所属控制器的初始化方法：

%hook QNBPlayerVideoAdsViewController
- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3 withPageViewController:(id)arg4 withAddToParenViewControllerNow:(_Bool)arg5 {
    return nil;
}
- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3 withParentEventViewController:(id)arg4 withAddToParenViewControllerNow:(_Bool)arg5 {
    return nil;
}
- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3 withAddToParenViewControllerNow:(_Bool)arg4 {
    return nil;
}
- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3 withParentEventViewController:(id)arg4 {
    return nil;
}
- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3 {
    return nil;
}
%end

运行后发现虽然片头广告的View层消失了，但是还会播放音频，播放结束后才能观看正片，所以只是将QNBPlayerVideoAdsViewController的初始化方法hook掉是不够的，那么再梳理一下QNBPlayerVideoAdsView的层级结构：

广告是由多个View组成的，并且由多个控制器管理，那么尝试一下把这些控制器的初始化方法都hook一下试试：

%hook QNBPlayerVideoAdsViewController
- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3 withPageViewController:(id)arg4 withAddToParenViewControllerNow:(_Bool)arg5 {
    return nil;
}
- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3 withParentEventViewController:(id)arg4 withAddToParenViewControllerNow:(_Bool)arg5 {
    return nil;
}
- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3 withAddToParenViewControllerNow:(_Bool)arg4 {
    return nil;
}
- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3 withParentEventViewController:(id)arg4 {
    return nil;
}
- (id)initWithEventProxy:(id)arg1 withPlayerInfo:(id)arg2 withParentViewController:(id)arg3 {
    return nil;
}
%end
%hook QADRootViewController
- (id)initWithEventProxy:(id)arg1 withPlayAdInfo:(id)arg2 withParentViewController:(id)arg3 {
    return nil;
}
%end
%hook QADGestureViewController
- (id)initWithEventProxy:(id)arg1 withPlayAdInfo:(id)arg2 withParentViewController:(id)arg3 {
    return nil;
}
%end
%hook QADRichMediaAdViewController
- (id)initWithEventProxy:(id)arg1 withPlayAdInfo:(id)arg2 withParentViewController:(id)arg3 {
    return nil;
}
%end
%hook QADMediaAdViewController
- (id)initWithEventProxy:(id)arg1 withPlayAdInfo:(id)arg2 withParentViewController:(id)arg3 {
    return nil;
}
%end

但是结果令人失望，运行后还是之前的效果，广告画面不见了，但是声音还在。但是通过查看这些初始化方法找到了一个共同的特点，都有一个叫做PlayAdInfo的参数中，而且在QNBBasePlayerViewController、QADRootViewController、和QADBaseViewController的头文件中都发现了一个QADPlayAdInfo类的成员变量，所以可以猜测QADPlayAdInfo应该是广告的数据，如果让广告的数据为空，那么广告可能就不会被创建了：

%hook QADPlayAdInfo 
- (id)initWithEventProxy:(id)arg1 scrrenMode:(long long)arg2 scenesType:(long long)arg3 {
    return nil;
}
%end

运行之后返现广告果然消失了，没想到最后却只用到了这短短的三行代码，但是之前的分析过程也是必不可少的。

4、最终效果