VStubActivity.puml

@startuml

[-> StubActivity : onCreate

activate StubActivity
StubActivity -> Activity : onCreate
activate Activity
deactivate Activity

note left
双开一个普通应用时(Lody云“那些本身不具有插件化功能的应用”）
并不会执行StubActivity.onCreate方法。
endnote

StubActivity <-- Activity : intent=getIntent()
note left
从StubActivity启动intent的EXTRA_TARGET_INTENT字段中，
取出真正的要启动的Activity的intent。
然后调用PatchManager类注入HCallbackHook，这个类会hook掉
ActivityThread.mH。
endnote

StubActivity -> PatchManager : checkEnv((HCallbackHook.class)
activate PatchManager
    PatchManager -> HCallbackHook : inject
    activate HCallbackHook
    deactivate HCallbackHook
    note over HCallbackHook
        注入HCallbackHook对象，
        hook掉ActivityThread.mH里的mCallback
    endnote
deactivate PatchManager

StubActivity -> Activity : startActivity
activate Activity
deactivate Activity

StubActivity -> Activity : finish
activate Activity
deactivate Activity
note left StubActivity
    StubActivity的使命完成，
    调用finish结束自己
endnote

deactivate StubActivity

@enduml