Navigation automatically returns to start destination when rotating screen [360160851]

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Description

me...@gmail.com

created issue #1

Aug 16, 2024 07:56AM

Component used: Navigation

Version used: 2.8.0-beta07

Devices/Android versions reproduced on: Android Emulator Pixel 7 API 34

Description of the problem: when using a navigation node with a parameter of the data class type, e.g.

@Serializable
data class Second(val name: Name)

@Serializable
@Parcelize
data class Name(val value: String) : Parcelable

after navigate this route, when the screen is rotated, automatic navigation occurs to start destination.

Sample project to trigger the issue. Github link
A screenrecord or screenshots showing the issue: in attached file.

Desktop 2024.08.16 - 10.41.35.01.mp4

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do...@google.com <do...@google.com> #2Aug 16, 2024 10:33AM

I was able to reproduce this using the project you supplied. The root cause is the NavHostController being recreated on configuration change (which it shouldn't). Interestingly, this does not happen every time you rotate the screen, only sometimes. My suspicion is that something in your custom type is not being deserialized correctly, but I'll leave it for the engineers to investigate further.

me...@gmail.com <me...@gmail.com> #3Aug 22, 2024 07:36AM

The same behavior in version 2.8.0-rc01.

jb...@google.com <jb...@google.com> Sep 16, 2024 08:22PM

Assigned to cl...@google.com.

cl...@google.com <cl...@google.com> Jan 21, 2025 09:17PM

Accepted by cl...@google.com.

Issue 360160851

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Issue summary

Comments

do...@google.com <do...@google.com> #2Aug 16, 2024 10:33AM

me...@gmail.com <me...@gmail.com> #3Aug 22, 2024 07:36AM

jb...@google.com <jb...@google.com> Sep 16, 2024 08:22PM

cl...@google.com <cl...@google.com> Jan 21, 2025 09:17PM

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