How is an Android activity instantiated (using reflection)?

Question

Got asked this today in an Android interview. I answered the usual, you know, intent + startActivity, etc. Interviewer then asked more pointedly,

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Answer 1

Android core is responsible to manage de activity instantiation, and manage it into his activity lifecycle.

The android system takes care about calling all the events you can control in your class in the correct order, add the activity to the stack and many other things.

When you call startActivity, Android core takes control and makes an activity instance (or reuse a previous one if match) and starts to call activity lifecycle events

You can see it here: http://developer.android.com/reference/android/app/Activity.html in Activity Lifecycle part