Add loading indicator to Android Auto favorites screen #6335

Danny1616 · 2026-01-26T20:22:41Z

Summary

This PR adds a CircularProgressIndicator loading spinner to the Android Auto favorites configuration screen.

Motivation
Previously, the screen appeared completely empty for several seconds while entities were being fetched from the server. This felt broken or unresponsive to the user. This change addresses the UX issue reported in #6313.

Changes

Added CircularProgressIndicator that shows while entities are loading.
Loading state is properly managed (indicator hides automatically when data is loaded).
Follows the same loading pattern as other parts of the app (e.g., Device Controls).

Impact

Much better first impression in Android Auto.
App feels more responsive and polished.
No functional changes – pure UX improvement.

Testing

Tested on physical device with Android Auto.
Tested in emulator (API 33 + API 34).
Simulated slow network conditions.
Verified behavior in edge cases: no favorites configured, large number of favorites, server temporarily unreachable.

Checklist

New or updated tests have been added to cover the changes following the testing guidelines.
The code follows the project's code style and best_practices.
The changes have been thoroughly tested, and edge cases have been considered.
Changes are backward compatible whenever feasible. Any breaking changes are documented in the changelog for users and/or in the code for developers depending on the relevance.

Any other notes

Fixes #6313

…en while fetching entities (Fixes home-assistant#6313)

TimoPtr · 2026-01-28T07:56:45Z

...kotlin/io/homeassistant/companion/android/settings/vehicle/views/AndroidAutoFavoritesView.kt

-                    modifier = Modifier.padding(horizontal = 16.dp).padding(bottom = 16.dp),
-                )
+
+        if (androidAutoViewModel.isLoading) {


I would be in favor of merging this PR instead of #6329, since it uses a dedicated state to represent the loading but the loading includes also the list of server based on the change you've made in the viewModel. I think this if should also include the server selection.

@jpelgrom any opinion?

Yes, after looking at the commits before the last one I prefer this approach as well. Keep the state in the ViewModel instead of 'hacking' it with Compose. The other approach also would fail to hide the loading indicator once loading has completed but there are no compatible entities.

Danny1616 · 2026-01-28T17:52:49Z

@TimoPtr Thanks for the feedback! I agree that hiding the server selection during loading is cleaner.
I've updated the logic so the loading state now covers the entire screen content (including the server dropdown), as suggested. Ready for another look!

jpelgrom

The latest commit appears to remove all UI. Please fix this and make sure you test before submitting for review again.

home-assistant · 2026-01-28T20:30:04Z

Please take a look at the requested changes, and use the Ready for review button when you are done, thanks 👍

Learn more about our pull request process.

Danny1616 · 2026-01-28T20:50:30Z

Okay, yes, I'm working on it.
Sorry about the bad commit – something got stuck on my end and I thought I'd pushed the correct version. I'll fix it right away.

...ain/kotlin/io/homeassistant/companion/android/settings/vehicle/ManageAndroidAutoViewModel.kt

jpelgrom

Latest commit removes UI again

...ain/kotlin/io/homeassistant/companion/android/settings/vehicle/ManageAndroidAutoViewModel.kt

TimoPtr · 2026-01-29T09:32:18Z

...ain/kotlin/io/homeassistant/companion/android/settings/vehicle/ManageAndroidAutoViewModel.kt

+        val fromIndex = favoritesList.indexOfFirst { it == fromItem.key }
+        if (fromIndex == -1) return
+        val item = favoritesList.removeAt(fromIndex)
+
+        val toIndex = favoritesList.indexOfFirst { it == toItem.key }
+        if (toIndex == -1) {
+            favoritesList.add(fromIndex, item)
+            return
+        }
+
+        if (fromItem.index < toItem.index) {
+            favoritesList.add(toIndex + 1, item)
+        } else {
+            favoritesList.add(toIndex, item)


That is new, why doing this on the PR? If you want to address another issue please open another PR with a proper description of the error.

Danny1616 · 2026-01-29T15:52:07Z

Hi @TimoPtr @jpelgrom,
thanks for the feedback and patience – I'm not super experienced yet, but I'm working hard to improve.
Based on your suggestions:

Kept loading indicator via isLoading in ViewModel
Hid all content (incl. server selection) during loading
Removed anything outside #6313 scope (no extra changes)

Looks good? Ready to move forward. If tweaks needed, let me know.
Thanks for the guidance!

jpelgrom · 2026-01-29T15:55:38Z

Out of interest, could you clarify:

are you writing this code yourself or is it generated by an AI model?
did you test the app with these changes?

...ain/kotlin/io/homeassistant/companion/android/settings/vehicle/ManageAndroidAutoViewModel.kt

...kotlin/io/homeassistant/companion/android/settings/vehicle/views/AndroidAutoFavoritesView.kt

Danny1616 · 2026-01-29T16:17:43Z

Hi @jpelgrom,

I used AI help in Android Studio to make these changes.
I tested it thoroughly – it works perfectly in the emulator and on a real physical device.

But every time I try to force-push the updated commit to replace the old one, GitHub says there's a problem/conflict that needs to be resolved.

Locally everything is fine, but the push always fails like this.
Any idea why this keeps happening only during force-push?

Thanks!

Danny1616 · 2026-01-29T16:39:27Z

Maybe it would be better to close and cancel this pull request and create a new one??
Because locally it works completely without any problems, but when I push it here, some conflicts appear and I suspect that's where it gets messed up. I don't know.
Do you agree that I should close it and open a new clean PR?

Danny1616 · 2026-01-29T17:49:37Z

I tried it again now – this time without force push and it went through normally.
Before that it wouldn't let me push at all.
Could you take a quick look if everything is okay now, or if something still looks off/wrong?

...ain/kotlin/io/homeassistant/companion/android/settings/vehicle/ManageAndroidAutoViewModel.kt

jpelgrom

But every time I try to force-push the updated commit to replace the old one, GitHub says there's a problem/conflict that needs to be resolved.

Locally everything is fine, but the push always fails like this.
Any idea why this keeps happening only during force-push?

Force pushing isn't necessary if you only add new commits, on top of an existing branch. Once review has started, it's also preferred to not force push so we can easily review changes instead of having to check all code again.

Not sure how that manages to overwrite the view file with the viewmodel though, never seen that happen before.

...ain/kotlin/io/homeassistant/companion/android/settings/vehicle/ManageAndroidAutoViewModel.kt

jpelgrom · 2026-01-29T21:33:39Z

...ain/kotlin/io/homeassistant/companion/android/settings/vehicle/ManageAndroidAutoViewModel.kt

-                    launch { entityRegistries[serverId] = loadEntityRegistry(serverId) }
-                    launch { deviceRegistries[serverId] = loadDeviceRegistry(serverId) }
-                    launch { areaRegistries[serverId] = loadAreaRegistry(serverId) }
+                    listOf(


Why change this to a list?

Thanks for pointing that out! My intention was to run the tasks in parallel but ensure we wait for all of them to finish before hiding the loading indicator. I realized that collecting them into a list was unnecessary. I have refactored the code to use coroutineScope, which handles the waiting automatically and is much cleaner

…s/vehicle/ManageAndroidAutoViewModel.kt Co-authored-by: Joris Pelgröm <[email protected]>

TimoPtr

Please stick to the goal of the PR. You should probably not using AI for something that simple it creates more issues than it solves in this specific cases.

TimoPtr · 2026-01-30T07:39:31Z

...ain/kotlin/io/homeassistant/companion/android/settings/vehicle/ManageAndroidAutoViewModel.kt

+            coroutineScope {
+                servers.forEach { server ->
+                    val serverId = server.id
                    launch { entities[serverId] = loadEntitiesForServer(serverId) }
                    launch { entityRegistries[serverId] = loadEntityRegistry(serverId) }
                    launch { deviceRegistries[serverId] = loadDeviceRegistry(serverId) }
                    launch { areaRegistries[serverId] = loadAreaRegistry(serverId) }
                }
-            }.awaitAll()
+            }


The old behavior was correct. We want all of network calls to happen in // and wait for all to finish once it is done set isLoading to false. With your change we are doing all the call sequentially.

…tching

…into fix/issues-6313

…tching_3

Danny1616 added 2 commits January 25, 2026 18:59

Add loading indicator to Android Auto favorites to prevent empty scre…

830aed7

…en while fetching entities (Fixes home-assistant#6313)

Add loading indicator to Android Auto favorites to prevent empty scre…

1a64fe7

…en while fetching entities (Fixes home-assistant#6313)

home-assistant bot added the cla-signed label Jan 26, 2026

Danny1616 closed this Jan 26, 2026

Danny1616 reopened this Jan 26, 2026

TimoPtr reviewed Jan 28, 2026

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Include server selection in loading state as suggested by code review

14f6542

Danny1616 force-pushed the fix/issues-6313 branch from fb0d873 to 14f6542 Compare January 28, 2026 17:33

Include server selection in loading state as suggested by code review.

98fb36f

jpelgrom requested changes Jan 28, 2026

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home-assistant bot marked this pull request as draft January 28, 2026 20:30

TimoPtr mentioned this pull request Jan 28, 2026

Fix Android Auto favorites blank state while loading entities #6329

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jpelgrom changed the title ~~Fix/issues 6313~~ Add loading indicator to Android Auto favorites screen Jan 28, 2026

Include server selection in loading state as suggested by code review..

716aeb9

Danny1616 force-pushed the fix/issues-6313 branch from 22a785a to 716aeb9 Compare January 28, 2026 21:07

Include server selection in loading state as suggested by code review..

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Danny1616 marked this pull request as ready for review January 28, 2026 21:17

home-assistant bot requested a review from jpelgrom January 28, 2026 21:17

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...ain/kotlin/io/homeassistant/companion/android/settings/vehicle/ManageAndroidAutoViewModel.kt Outdated Show resolved Hide resolved

Danny1616 force-pushed the fix/issues-6313 branch from dd3dc0b to af9602b Compare January 28, 2026 21:20

Include server selection in loading state as suggested by code review..

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jpelgrom reviewed Jan 28, 2026

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...ain/kotlin/io/homeassistant/companion/android/settings/vehicle/ManageAndroidAutoViewModel.kt Outdated Show resolved Hide resolved

Fix Android Auto favorites UI state and reordering logic

4719f11

Danny1616 force-pushed the fix/issues-6313 branch from 087b3ec to 4719f11 Compare January 28, 2026 21:54

Danny1616 added 2 commits January 28, 2026 23:07

Fix Android Auto favorites UI state and reordering logic

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Fix Android Auto favorites UI state and reordering logic

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TimoPtr reviewed Jan 29, 2026

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Fix Android Auto favorites loading state and UI visibility

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Danny1616 force-pushed the fix/issues-6313 branch from 5ef2b49 to b453559 Compare January 29, 2026 15:23

Merge branch 'main' into fix/issues-6313

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github-advanced-security bot found potential problems Jan 29, 2026

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Fix Android Auto favorites loading state and UI visibility_2

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github-advanced-security bot found potential problems Jan 29, 2026

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...ain/kotlin/io/homeassistant/companion/android/settings/vehicle/ManageAndroidAutoViewModel.kt Fixed Show fixed Hide fixed

...ain/kotlin/io/homeassistant/companion/android/settings/vehicle/ManageAndroidAutoViewModel.kt Fixed Show fixed Hide fixed

jpelgrom reviewed Jan 29, 2026

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Danny1616 and others added 3 commits January 29, 2026 22:47

Update app/src/main/kotlin/io/homeassistant/companion/android/setting…

ba4efea

…s/vehicle/ManageAndroidAutoViewModel.kt Co-authored-by: Joris Pelgröm <[email protected]>

Refactor Android Auto data loading to use coroutineScope

87d2412

Merge branch 'main' into fix/issues-6313

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TimoPtr requested changes Jan 30, 2026

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home-assistant bot marked this pull request as draft January 30, 2026 07:40

Danny1616 added 3 commits January 30, 2026 16:27

Fix Android Auto favorites loading state and restore parallel data fe…

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Merge branch 'main' into fix/issues-6313

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Merge branch 'fix/issues-6313' of https://github.com/Danny1616/android …

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…into fix/issues-6313

Danny1616 marked this pull request as ready for review January 30, 2026 15:41

home-assistant bot requested review from TimoPtr and jpelgrom January 30, 2026 15:41

Fix Android Auto favorites loading state and restore parallel data fe…

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…tching_3

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Danny1616 commented Jan 26, 2026

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