BackHandler crashes in IDE preview [185693006]

Fixed

Bug

Status Update

No update yet.

Description

za...@gmail.com

created issue #1

Apr 19, 2021 03:01AM

Jetpack Compose release version: 1.0.0-beta04
Android Studio Build: 7.0.0-alpha14

Steps to Reproduce:

Create a composable containing a BackHandler composable.
Try to render the composable in the IDE preview with an @Preview composable.

The preview will throw an exception about there not being any BackDispatcher available.

Because there isn't any back button in the IDE preview, and most previewed composables probably don't care about navigation anyway, I would expect BackHandler to just silently no-op in this case.

Comments

an...@google.com <an...@google.com> May 26, 2021 12:26PM

Assigned to il...@google.com.

il...@google.com <il...@google.com> #2Jun 2, 2021 12:06AM

Reassigned to an...@google.com.

Hi. Thanks for reporting this. Fixed in this changelist. This should be available in alpha-04

an...@google.com <an...@google.com> #3Jun 2, 2021 03:47PM

Reassigned to il...@google.com.

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

commit e782987543a9f8ccd485e970ddc74564b24378db
Author: Vighnesh Raut <vighnesh.raut13@gmail.com>
Date: Mon Jan 02 15:27:40 2023

fix: tab row crashes when only 1 tab is added

Bug:

b/264018028

Test: Added unit test

Change-Id: I6381dbac304fc1d69d3708c6655f8b595668e93f

M tv/tv-material/src/androidTest/java/androidx/tv/material/TabRowTest.kt
M tv/tv-material/src/main/java/androidx/tv/material/TabRow.kt

https://android-review.googlesource.com/2373449

ap...@google.com <ap...@google.com> #4Jun 15, 2021 03:49PM

deleted

ap...@google.com <ap...@google.com> #5Jun 15, 2021 03:49PM

The following release(s) address this bug.It is possible this bug has only been partially addressed:

androidx.tv:tv-material:1.0.0-alpha04

il...@google.com <il...@google.com> #6Jun 15, 2021 04:04PM

Marked as fixed.

We've added default a LocalOnBackPressedDispatcherOwner and LocalActivityResultRegistryOwner to @Preview, so APIs that depend on these existing won't crash out of the box.

za...@gmail.com <za...@gmail.com> #7Jun 15, 2021 04:06PM

Thanks!