VAHook.puml

@startuml

interface IBinder

abstract class Hook {
    getName()
    beforeHook
    onHook
    afterHook
    isEnable
}

interface IHookObject {
    void addHook(Hook hook);
    removeHook(hookName);
    getHook(name);
    getProxyObject();
}

class HookObject {
    Map<String, Hook> mHookMaps;
    mBaseObject;
    mProxyObject;
}

class PatchObject {
    hookObject
}

class ActivityManagerPatch {
}

interface Injectable {
    inject()
    isEnvBad()
}

class IInterface {
    IBinder asBinder();
}

class IActivityManager {
    startActivity()
    broadcastIntent()
}

IHookObject <|-- HookObject
HookObject <|-- PatchObject
Injectable <|-- PatchObject

Hook <|-- StartActivity
Hook <|-- BroadcastIntent

IHookObject *-- IInterface
HookObject *-- Hook
ActivityManagerPatch *-- StartActivity
ActivityManagerPatch *-- BroadcastIntent

IBinder <|-- HookBinder
IHookObject <|-- HookBinder

IInterface <|-- IActivityManager

PatchObject <|-- ActivityManagerPatch

class PatchManager {
    Map<Class, Injectable> mPatchMaps;
    init()
    injectAll()
    addAllPatches()
    addPatch()
    addAllPatches()
}

PatchManager *-- ActivityManagerPatch

note top of Hook
该类是对方法的hook,每个Hook对象都对应于一个方法,
如IActivityManager.startActivity
endnote

note top of HookObject
该类对应于一个被hook的类,所有内部都代理了IInterface的某个具体子类,
该类中有一张表,存储了每个被hook的方法的Hook对象.

该类中对接口类使用
Proxy.newProxyInstance
InvocationHandler
endnote

@enduml