onActivityCreated 何时在 Fragment 的生命周期中被调用?

When does onActivityCreated get called in a Fragment's Lifecycle?

我正在查看 Fragment's Lifecycle here but cannot see where onActivityCreated 被调用?

来自文档 docs:

Called when the fragment's activity has been created and this fragment's view hierarchy instantiated

所以基本上 onActivityCreated 是在主持人 activity onCreate 返回后调用的。