Flows complete early in navigation-compose 2.4.0-alpha07 on tab reselection [196997433]

Fixed

Bug

Status Update

No update yet.

Description

yu...@gmail.com

created issue #1

Aug 18, 2021 03:11AM

Component used: Navigation Version used: Snapshot #7634339 or 2.4.0-alpha07 Devices/Android versions reproduced on: Pixel 4a

This issue is related to another fixed issue: https://issuetracker.google.com/issues/194925622

2.4.0-alpha05 introduced a bug where tab reselection causes empty screens, unless the current screen is the startDestination of the root graph.

The issue was fixed in Snapshot #7634339, but it introduced another bug:

Flows collected in compose screens via rememberFlowWithLifecycle(flow).collectAsState(initial) complete early on tab reselection, like in the original issue. About rememberFlowWithLifecycle

Attaching the minimal sample that shows the problem and a video.

In sample view model, there is a simple flow that emits text in some interval.

In 2.4.0-alpha04 - Collecting flows directly via collectAsState or via rememberFlowWithLifecycle works as expected (interval Flow doesn't complete until the user leaves the screen)

In 2.4.0-alpha05-06 - Screen becomes empty on tab reselection

In Snapshot #7634339 / 2.4.0-alpha07:

Tab reselection doesn't cause empty screens
Tab reselection doesn't cause early flow completion when collecting interval flow directly via collectAsState
Tab reselection does cause early flow completion when collecting interval flow wrapped in rememberFlowWithLifecycle

Comments

yu...@gmail.com <yu...@gmail.com> #2Aug 18, 2021 03:16AM

Project: platform/frameworks/support
Branch: androidx-master-dev

commit f57b5cbd142016a2d95fd7bf736262049b085aeb
Author: Jeremy Woods <jbwoods@google.com>
Date: Mon Nov 09 13:23:07 2020

Move FloatingWindow interface to Kotlin

Converted the FloatingWindow inferface to koltin and added the kotlin
std library dependency to navigation-common.

Test: ./gradlew checkApi
Bug: 172823546

Change-Id: I98af40e5c9bc747d792180990f1654d6353aa4b5

M navigation/navigation-common/build.gradle
M navigation/navigation-common/src/main/java/androidx/navigation/FloatingWindow.kt

https://android-review.googlesource.com/1492738

screen-20210812-232537.mp4

32 MB

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NavigationComposeBug-Flows.zip

1.6 MB

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il...@google.com <il...@google.com> #3Sep 20, 2021 11:52PM

Assigned to jb...@google.com.

Project: platform/frameworks/support
Branch: androidx-main

commit b637fdfd6b937d19d4e419c4bfba9b437af6378c
Author: Ian Lake <ilake@google.com>
Date: Thu Apr 01 16:13:27 2021

Merge Navigation Compose version back into Navigation

Rather than run Navigation Compose as a separate,
parallel project from the other Navigation artifacts,
merge the versions together so that we can better
integrate the artifacts together and leverage new
alpha features.

Test: ./gradlew bOS, ran Studio in FLAN and COMPOSE configs
BUG: 172823546
Change-Id: I139a44d95c91dc3cf2e951225aabbc2581914e95

M buildSrc/src/main/kotlin/androidx/build/LibraryVersions.kt
M navigation/navigation-compose/build.gradle
M navigation/navigation-compose/samples/build.gradle
M navigation/navigation-compose/src/androidTest/java/androidx/navigation/compose/NavHostTest.kt
M navigation/navigation-runtime/build.gradle
M settings.gradle
M testutils/testutils-navigation/build.gradle

https://android-review.googlesource.com/1662999

il...@google.com <il...@google.com> #4Sep 28, 2021 09:35PM

Project: platform/frameworks/support
Branch: androidx-main

commit 51769b7a8d6d3e2032e45b3ec1e3cfe29e718ab6
Author: Jeremy Woods <jbwoods@google.com>
Date: Wed Mar 31 10:59:25 2021

Add routes to NavDestination

This change introduces the concept of a route to NavDestination. A route
is String that defines the path to the Destination. Setting the route on
a NavDestination will replace the any id that was set previously and
adds a deep link to the destination. You can set a route on the
NavDestination programatically, or through xml.

RelNote: "You can now add a route to your NavDestination"
Test: NavDestinationTest
Bug: 172823546

Change-Id: I77daf563f480ae54b9728a78e7696ea96d19f264

M navigation/navigation-common/api/current.txt
M navigation/navigation-common/api/public_plus_experimental_current.txt
M navigation/navigation-common/api/restricted_current.txt
M navigation/navigation-common/src/androidTest/java/androidx/navigation/NavDestinationAndroidTest.kt
M navigation/navigation-common/src/main/java/androidx/navigation/NavDestination.kt
M navigation/navigation-common/src/main/res-public/values/public_attrs.xml
M navigation/navigation-common/src/main/res/values/attrs.xml

https://android-review.googlesource.com/1660682

ap...@google.com <ap...@google.com> #5Oct 4, 2021 09:09PM

Project: platform/frameworks/support
Branch: androidx-main

commit df16e2452d8333af236a9e5203b396b98f1056be
Author: Jeremy Woods <jbwoods@google.com>
Date: Mon Apr 05 17:19:54 2021

Add routes to NavDestination Kotlin DSL

You can now add a route to your NavDestination when using the Kotlin
DSL.

RelNote: "You can now add a route to your NavDestination via the Kotlin
DSL"
Test: NavDestinationBuilderTest
Bug: 172823546

Change-Id: I1276418c8ca0b22eb420c0be6b97f0a5d41de0f9

M navigation/navigation-common/api/api_lint.ignore
M navigation/navigation-common/api/current.txt
M navigation/navigation-common/api/public_plus_experimental_current.txt
M navigation/navigation-common/api/restricted_current.txt
M navigation/navigation-common/src/androidTest/java/androidx/navigation/NavDestinationBuilderTest.kt
M navigation/navigation-common/src/main/java/androidx/navigation/NavDestinationBuilder.kt

https://android-review.googlesource.com/1660683

jb...@google.com <jb...@google.com> #6Oct 5, 2021 04:40PM

Marked as fixed.

Project: platform/frameworks/support
Branch: androidx-main

commit e6ad7e497c3006c7c1fbe701c36d45f3906c33b0
Author: Jeremy Woods <jbwoods@google.com>
Date: Mon May 03 17:50:16 2021

Deprecated getStartDestination

Deprecating getStartDestination in favor of getStartDestinationId to
make the API more explicit.

RelNote: "The `getStartDestination()` API has been deprecated in favor
of `getStartDestinationId()`."
Test: ./gradlew checkApi
Bug: 172823546

Change-Id: I0887ffe673bea453b69dff286d5dc142ce4ef462

M compose/integration-tests/docs-snippets/src/main/java/androidx/compose/integration/docs/navigation/Navigation.kt
M navigation/navigation-common/api/current.txt
M navigation/navigation-common/api/public_plus_experimental_current.txt
M navigation/navigation-common/api/restricted_current.txt
M navigation/navigation-common/src/androidTest/java/androidx/navigation/NavGraphAndroidTest.kt
M navigation/navigation-common/src/main/java/androidx/navigation/NavDestination.kt
M navigation/navigation-common/src/main/java/androidx/navigation/NavGraph.kt
M navigation/navigation-common/src/main/java/androidx/navigation/NavGraphBuilder.kt
M navigation/navigation-common/src/main/java/androidx/navigation/NavGraphNavigator.kt
M navigation/navigation-common/src/test/java/androidx/navigation/NavDestinationTest.kt
M navigation/navigation-common/src/test/java/androidx/navigation/NavGraphNavigatorTest.kt
M navigation/navigation-common/src/test/java/androidx/navigation/NavGraphTest.kt
M navigation/navigation-compose/integration-tests/navigation-demos/src/main/java/androidx/navigation/compose/demos/BottomBarNavDemo.kt
M navigation/navigation-runtime/src/androidTest/java/androidx/navigation/NavInflaterTest.kt
M navigation/navigation-runtime/src/main/java/androidx/navigation/NavController.kt
M navigation/navigation-ui/src/main/java/androidx/navigation/ui/NavigationUI.kt

https://android-review.googlesource.com/1695087

yu...@gmail.com <yu...@gmail.com> #7Oct 5, 2021 07:38PM

Project: platform/frameworks/support
Branch: androidx-main

commit 81aaeccc3cd3530b790317e0488380464f29023e
Author: Jeremy Woods <jbwoods@google.com>
Date: Wed May 05 13:08:11 2021

Deprecate popUpTo in NavOptions

This deprecates popUpTo properties in by NavOptions and the
NavOptionsBuilder DSL in favor of popUpToId. Setting the popUpToId
should be done by using the popUpTo functions without passing in a
builder.

RelNote: "The `popUpTo` kotlin property has been deprecated in favor of
`popUpToId`."
Test: ./gradlew checkApi
Bug: 172823546

Change-Id: I59c73c383b84eb2b36472966aedff1b53957e26d

M navigation/navigation-common/api/api_lint.ignore
M navigation/navigation-common/api/current.txt
M navigation/navigation-common/api/public_plus_experimental_current.txt
M navigation/navigation-common/api/restricted_current.txt
M navigation/navigation-common/src/androidTest/java/androidx/navigation/NavDestinationBuilderTest.kt
M navigation/navigation-common/src/androidTest/java/androidx/navigation/NavOptionsBuilderTest.kt
M navigation/navigation-common/src/main/java/androidx/navigation/NavOptions.kt
M navigation/navigation-common/src/main/java/androidx/navigation/NavOptionsBuilder.kt
M navigation/navigation-runtime/src/androidTest/java/androidx/navigation/NavControllerTest.kt
M navigation/navigation-runtime/src/main/java/androidx/navigation/NavController.kt

https://android-review.googlesource.com/1697773

yu...@gmail.com <yu...@gmail.com> #8Oct 5, 2021 08:50PM

Project: platform/frameworks/support
Branch: androidx-main

commit fc9a744da1fd9cc99aaf92ec679bd01bb7b4564f
Author: Jeremy Woods <jbwoods@google.com>
Date: Wed Mar 31 19:09:29 2021

Add routes to NavGraph

This add routes to NavGraph. You can set a route and
startDestinationRoute as an alternative to an id and
startDestinationId.

Passing a blank route of startDestinationRoute is equivalent to passing
0 meaning you can have a NavGraph with a blank route, but you cannot
have a NavGraph with a blank startDestinationRoute.

This change also includes the addition of routes to the NavGraphBuilder
Kotlin DSL

RelNote: "Navigation now supports adding NavGraphs by using a route."
Test: NavGraphTest, NavGraphAndroidTest, NavGraphBuilderTest
Bug: 172823546
Change-Id: I36c68144318ac23785c9178e847b677c0ef1cd8d

M navigation/navigation-common/api/api_lint.ignore
M navigation/navigation-common/api/current.txt
M navigation/navigation-common/api/public_plus_experimental_current.txt
M navigation/navigation-common/api/restricted_current.txt
M navigation/navigation-common/src/androidTest/java/androidx/navigation/NavGraphAndroidTest.kt
M navigation/navigation-common/src/androidTest/java/androidx/navigation/NavGraphBuilderTest.kt
M navigation/navigation-common/src/androidTest/java/androidx/navigation/NavGraphTest.kt
M navigation/navigation-common/src/main/java/androidx/navigation/NavDestinationBuilder.kt
M navigation/navigation-common/src/main/java/androidx/navigation/NavGraph.kt
M navigation/navigation-common/src/main/java/androidx/navigation/NavGraphBuilder.kt

https://android-review.googlesource.com/1661700

yu...@gmail.com <yu...@gmail.com> #9Oct 6, 2021 01:05AM

Project: platform/frameworks/support
Branch: androidx-main

commit 7220fdfc37ee734820cda773812ad7ec40e587d6
Author: Jeremy Woods <jbwoods@google.com>
Date: Thu Apr 01 14:42:02 2021

Add popUpToRoute to NavOptions

Instead of popUpTo with an id, you can now use it with route.

RelNote: "NavOptions now supports popUpToRoute to allow popping to the
given destination route"
Test: NavOptionsBuilderTest
Bug: 172823546

Change-Id: I0c8fb723e1bfb410b1518a619620415f7a1893e1

M navigation/navigation-common/api/api_lint.ignore
M navigation/navigation-common/api/current.txt
M navigation/navigation-common/api/public_plus_experimental_current.txt
M navigation/navigation-common/api/restricted_current.txt
M navigation/navigation-common/src/androidTest/java/androidx/navigation/NavOptionsBuilderTest.kt
M navigation/navigation-common/src/main/java/androidx/navigation/NavOptions.kt
M navigation/navigation-common/src/main/java/androidx/navigation/NavOptionsBuilder.kt

https://android-review.googlesource.com/1662685