SavedStateHandle.getLiveData(String key, T initialValue) does not populate the backing map [178510877]

Fixed

Bug

Status Update

No update yet.

Description

ba...@gmail.com

created issue #1

Jan 27, 2021 05:59AM

Artifact used: androidx.lifecycle:lifecycle-viewmodel-savedstate:2.2.0

The backing map is only populated when MutableLiveData.setValue() is called. SavedStateHandle.get(key) returns null when called right after calling SavedStateHandle.getLiveData(key, defaultValue)

The issue can be reproduced using the code here

https://github.com/baolongnt/SavedStateHandleBug/blob/master/app/src/test/java/com/google/savedstatehandlebug/SavedStateHandleShould.java

Comments

se...@google.com <se...@google.com> Jul 29, 2021 01:39PM

Assigned to se...@google.com.

do...@gmail.com <do...@gmail.com> #2Aug 3, 2021 02:50AM

Yigit, do you have time to fix it?

reemission of the same liveData is racy

il...@google.com <il...@google.com> Nov 18, 2021 10:12PM

Status: New

il...@google.com <il...@google.com> Feb 1, 2022 09:33PM

Assigned to jb...@google.com.

ap...@google.com <ap...@google.com> #3Feb 3, 2022 01:09AM

yea i'll take it.

jb...@google.com <jb...@google.com> #4Feb 3, 2022 01:42AM

Marked as fixed.

Thanks for the detailed analysis. This may not be an issue anymore since we've started using Main.immediate there but I' not sure; I'll try to create a test case.

Issue 178510877