singleTop operations fail with a NullPointerException when replacing a no argument destination [158006669] - Issue Tracker

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singleTop operations fail with a NullPointerException when replacing a no argument destination

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Description

il...@google.com

created issue on behalf of mi...@gmail.com #1

Jun 2, 2020 06:06PM

Component used: Navigation Version used: 2.3.0-beta01

From this comment:

There is a bug in NavController (line 1078): mBackStack.peekLast().getArguments().putAll(args);

When getArguments(). return null, NPE is thrown.

Basically this is a case when current (old) fragment was created without arguments, but new navigation event has bundle args.

Comments

ap...@google.com <ap...@google.com> #2Jun 2, 2020 08:03PM

Dany, I believe this is fixed in a new release of safeargs ?

il...@google.com <il...@google.com> #3Jun 2, 2020 11:49PM

Marked as fixed.

Safeargs still needs AndroidComponentsExtension to get the applicationID from the variants (https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:navigation/navigation-safe-args-gradle-plugin/src/main/kotlin/androidx/navigation/safeargs/gradle/SafeArgsPlugin.kt;l=73). Did AGP 7.2.0-alpha05 remove the extension?

lc...@gmail.com <lc...@gmail.com> #4Jun 5, 2020 01:42AM

it moved to a different package : com.android.build.api.variant

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mi...@gmail.com

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il...@google.com

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an...@google.com

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