Where is the bundle of onSaveInstanceState saved?

Question

I would like to know where the bundle \"outState\" of the method onSaveInstanceState(Bundle outState) is stored.

Is it stored in memory or in the device storage?

Answer 1

The documentation as been updated and indicates precisely that the state is serialized to disk:

Saved instance state bundles persist both configuration changes and process death, but are limited by amount of storage and speed because onSavedInstanceState() serializes data to disk.

You can also found a table comparing the differents approches to preserving UI state

Source: https://developer.android.com/topic/libraries/architecture/saving-states