[Feature Request] Improve message for null startDestination [208041894]

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Description

al...@mercari.com

created issue #1

Nov 29, 2021 09:06AM

https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:navigation/navigation-common/src/main/java/androidx/navigation/NavGraphNavigator.kt;l=73?q=NavGraphnavigator

When I get this error, startDestDisplayName just gives me an arbitrary Dest Id when declaring startDest with Routes. I have to debug the source and check the route value to figure out what's wrong.

I suggest to display the route instead of this ID, by updating the startDestDisplayName logic or just displaying the route pattern somehow for easier debugging.

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il...@google.com <il...@google.com> Nov 30, 2021 01:03AM

Assigned to jb...@google.com.

jb...@google.com <jb...@google.com> #2Dec 3, 2021 10:30PM

Marked as fixed.

This has been fixed internally by https://android-review.googlesource.com/c/platform/frameworks/support/+/1909364 (not sure why it wasn't attached to the bug automatically) and will be available in the Navigation 2.4.0-rc01 release.

Issue 208041894

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il...@google.com <il...@google.com> Nov 30, 2021 01:03AM

jb...@google.com <jb...@google.com> #2Dec 3, 2021 10:30PM

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