Four car reports, two root causes.
1. Local music vanished from the Android Auto menu. Self-inflicted, by
c1afe72 yesterday.
That commit moved registrarFuenteNavegacion above every await to keep a
headless engine from dying before it ran -- but left
registrarFuenteMusicaLocal below `await SharedPreferences.getInstance()`.
The root menu decides whether to offer "Música Local" with
`fuenteLocal != null && await fuenteLocal.hayCarpetaConfigurada()`, so
the car could now get a root response in the window between the two
registrations, find a null source, and be told there is no local music.
Android Auto caches the browse root, so it stayed missing for the whole
session. Before the reorder both registrations sat together after the
await and the window did not exist.
FuenteMusicaLocalAutoImpl never needed prefs to be CONSTRUCTED -- it
resolves them lazily per call, the same convention ServicioAlarmas uses
-- so it now registers beside the station source, above every await, and
the window is gone rather than narrowed.
2. PluriWave disappeared from the Auto pane mid-drive, the playback
screen sat frozen, and the equalizer was lost on every navigation
prompt. One cause for all three.
androidWillPauseWhenDucked: true made audio_session translate Android's
AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK into a full PAUSE. In a car that
fires constantly: every navigation instruction, every speed-camera
warning, every voice assistant. And a pause publishes playing:false,
which AudioService.setState turns into exitPlayingState() and, with
androidStopForegroundOnPause: true, into stopForeground(...). The
plugin's own doc for that flag says what follows: "while in this lower
priority state, the operating system will also be able to kill your
service at any time to reclaim resources". A killed service is a media
session that vanishes from the car pane -- and another media app takes
the slot.
Now the app ducks instead of pausing, so playing stays true and session,
notification and pane all survive an interruption; and the service stays
foreground even on a real pause, so a genuine one is not a death
sentence either. androidNotificationOngoing goes to false because the
plugin asserts it implies stopForegroundOnPause, and nothing is lost: a
foreground service already forces the notification to be ongoing.
A real, non-duckable focus loss (a phone call) still pauses and still
auto-resumes -- asserted, so the duck change cannot silently turn a call
into a station playing over it.
3. Previous/next on the car playback screen, for stations too.
skipToPrevious/skipToNext are now advertised unconditionally, since
Android Auto only draws those buttons when the app declares support.
They are no longer inert without a local queue: they walk the narrowest
list the current station belongs to -- favourites, then my stations,
then the catalogue -- wrapping at both ends, because a button that goes
dead at the end of a list reads as broken on a screen with no visible
list position. Matching is by uuid so a refreshed snapshot still
resolves, and a station in no list leaves playback untouched.
The equalizer toggle still fits alongside them: prev/next take their two
reserved slots and the equalizer claims the remaining custom-action room
because construirControlesTransporte places it before MediaControl.stop.
The phone notification is deliberately untouched: `controls` still gates
skip on an active queue, so nativeActions and
androidCompactActionIndices are byte-identical. Only systemActions
changed, and only the car reads those.
Tests: 1146 -> 1158.
Reported: with Android Auto connected, the car screen sometimes came up
completely BLACK, and opening the app on the phone then showed a
completely WHITE screen until the app was force-killed and reopened.
Never without Android Auto.
The user guessed portrait-only plus a landscape phone made the app "go a
bit crazy". Right file and right trigger, different mechanism -- a broken
layout renders overflow stripes or a red error box, never white. White
means nothing was ever built, so runApp had not run.
Verified in the plugin source: AudioServiceActivity.provideFlutterEngine
returns AudioServicePlugin.getFlutterEngine(context), which CREATES the
engine and executes the Dart entrypoint the first time it is asked. When
the car binds the MediaBrowserService before the app is opened, that
first ask is the service -- so main() runs HEADLESS, with no Activity.
SystemChrome.setPreferredOrientations travels the flutter/platform
channel, whose handler (PlatformPlugin) is installed by the Activity.
Headless there is nobody to answer it, so the call throws
MissingPluginException or never settles. It was the FIRST await in
main(), which made it fatal twice over: registrarFuenteNavegacion sits
below it and never ran, leaving getChildren with no source (black car
screen), and runApp was never reached. Opening the app then reused that
same cached, already-dead engine -- white screen. Only a force-kill,
which disposes the cached engine, recovered it. That is exactly the
workaround that was reported, and it is what makes the diagnosis fit
every detail rather than most of them.
Three changes, smallest first:
- The Android Auto browse registration moves above every await. It
depends on nothing, and anything before it is a place to get stuck.
- The orientation call is no longer awaited. It is a display preference,
never a prerequisite for runApp, and _OrientacionResponsiveApp already
re-applies it in didChangeDependencies -- the only moment it can take
effect anyway.
- aplicarPoliticaOrientacion swallows everything and logs, so the
headless failure can never propagate again.
The policy itself is unchanged and now pure and tested
(orientacionesPara): phones portrait, >=600dp everything.
Tests: 1141 -> 1146.
Two Android Auto regressions reported from the car.
1. The on/off equalizer action disappeared from the playback screen.
That was self-inflicted: commit cacd3ec removed it on the theory that a
custom action in `controls` aborts `AudioService.setState` and kills the
media notification. Reading the plugin source refutes it. setState
(AudioService.java:513-520) SPLITS the list -- a control carrying a
customAction goes to `customActions` (PlaybackStateCompat, i.e. the car),
everything else becomes a NotificationCompat.Action in `nativeActions`
(the phone notification). The two never mix. And the throw the theory
depended on cannot happen here: ic_auto_eq_on/ic_auto_eq_off both exist
under res/drawable, and the labels are non-empty in all 13 locales.
The notification outage was already fixed by abc6b47 (transient idle on
a source change, which setState turns into a full stop() at :557).
The action is back, with both state-aware icons. The real invariant --
a custom action's icon must resolve and its label must be non-empty --
is now a test that reads res/drawable and fails on a missing file,
instead of a comment claiming custom actions are forbidden outright.
2. The Ecualizador folder never listed the user's saved presets.
itemsEcualizadorAuto iterated PresetEcualizador.presets, so only the six
factory presets appeared -- the user's own were unreachable from the
car, the surface where a preset picker matters most. They now arrive
through a registered read function (same seam as stations and local
music, re-read per browse so a preset saved on the phone shows up
without an app restart).
presetsEcualizadorAuto is the single source of truth for the ordered
universe, used to BUILD the items and to RESOLVE a tap, so the folder
cannot show an item that resolution then refuses -- which is what the
factory-only default in seleccionarPresetEqPorMediaId would have caused.
A custom preset whose name collides with a factory one is dropped: the
media id is the raw name, so it could only ever resolve to the factory
entry, and an item that applies a preset other than the one it names is
worse than an absent one.
Tests: 1108 -> 1120.
`AudioService.asyncError` had ZERO subscribers app-wide. The plugin funnels
every asynchronous failure of its own observers into that stream and nowhere
else — `_observePlaybackState`, `_observeMediaItem` and `_observeQueue` each
wrap their whole body in `catch (e) { _asyncError.add(e); }`, and the artwork
path uses `.catchError(_asyncError.add)` — and a `PublishSubject` with no
listeners simply drops what it is given. The platform-side exception behind
"the media playback notification disappeared" was therefore being discarded
without a single log line, which is why that report arrives with no evidence
attached.
`observarErroresAudio` is a pure, injectable seam in `arranque_audio.dart`
(stream in, logger callback out), matching the seam convention this codebase
already uses for `esperarArranqueAudio`, `decidirAvanceCola` and
`debeReaplicarEcualizador`: the unit tests exercise the wiring with a plain
`StreamController`, never the real plugin. The default logger emits one
`[PluriWave]`-prefixed `developer.log` line at `level: 900`, the same level
and prefix `servicio_audio.dart` already uses, so one logcat filter catches
both.
Wired from `lib/main.dart`, not from `arranque_audio.dart`: main.dart is the
module that genuinely owns handler lifecycle — it is the only caller of
`AudioService.init`, `registrarHandler` and `ServicioAudioSession`, and both
the on-time and the degraded/timeout startup branches converge on its
`conectarHandler` closure. `arranque_audio.dart` owns only the timeout race
and the degraded loading shell; it never creates or registers a handler
(`alListo` is injected into it from main.dart), so it has no lifecycle to
hang a subscription on. Subscribing happens before `AudioService.init` — the
getter only touches a static subject — so nothing reported during the
MediaBrowser handshake is missed, and one subscription covers both paths.
The subscription is cancellable and its `cancel` is registered into the
handler via `registrarLimpiezaArranque`, mirroring the existing
`registrarHandler` / `registrarFuenteNavegacion` / `registrarFuenteMusicaLocal`
registration convention. `onTaskRemoved` — the only handler teardown in this
app — runs it, so the subscription cannot outlive what it instruments. The
dependency points bootstrap -> service, so `servicio_audio.dart` never has to
import the bootstrap module or the plugin's static stream.
Zero behaviour change: nothing but log output is added.
AudioService.init has no internal timeout and an unhandled
onConnectionSuspended case in its MediaBrowser self-bind; under bind
contention with the car's connection it can hang forever, so runApp
never ran (black car screen, white phone UI until process kill).
Race init against an 8s timeout without ever re-calling it: on timeout
run a bootstrap app that waits on the same future, wires the handler
exactly once when it resolves, reports errors via FlutterError, and
swaps to the real app. Auto browse sources now register before the
init await since they take no handler dependency.
Phase 1: pick a device folder via SAF (persisted grant, no new
permission), browse its nested subfolders/tracks as a 5th Android
Auto root folder (hidden until configured), and play tracks through
the existing pipeline (EQ, art rotation, cold-start-safe source).
No metadata/sort/filter/shuffle yet -- filename is the title, generic
rotating art is the placeholder; deferred to a follow-up phase.
Adds a new pluriwave/file_actions native method (listAudioChildren)
and an onActivityResult override in MainActivity for the SAF folder
picker -- both static-review-only, no Android build available here.
Expose PluriWave to Android Auto (projected) as a media app:
- Declare car media support (automotive_app_desc.xml + manifest meta-data)
so Android Auto discovers the existing MediaBrowserService.
- New navegacion_auto.dart: ConstructorArbolAuto builds the browse tree
(Favoritos / Todas las emisoras / Mis emisoras, 50-item cap, stable
emisora:<id> media ids), reproducirPorMediaId routes a car tap to the
existing playMediaItem pipeline, FuenteEmisorasAutoLocal serves the tree
cold-start-safe (local favorites/custom stations before Flutter UI runs).
- PluriWaveAudioHandler overrides getChildren/getMediaItem/playFromMediaId
as thin delegations; playback pipeline untouched.
- EstadoRadio pushes live station snapshots to the browse source and
reconciles the selected station when playback starts from the car.
- Every playable item ships title + artUri; stations without logo fall
back to a bundled default art (android.resource://).
Tests: 52/52 green (10 new navegacion_auto, 2 new estado_radio, plus
audio safety-net suites). Handler overrides and native XML are
static-review-only (no Android build env). Size exception approved for a
single reviewable commit.
Replace generic system icons (info bubble, stock alarm clock) with a
custom equalizer-bars vector drawable across all 4 notification
builders: pre-notice, snooze countdown, ringing alarm, and the audio
player. Apply the app's cyan brand color to the 3 alarm notifications
that previously had none. Audio notification now explicitly declares
its icon instead of falling back to the full-color launcher icon,
which Android was auto-silhouetting into an illegible status-bar
blob.
- Replace all hardcoded Color literals outside lib/tema with theme tokens (new static brand palette in PluriWaveTokens); media notification uses the brand color instead of the Material default purple
- Favorite button on station cards grows to a 48dp target and becomes an independent semantics node for screen readers (Semantics container fix)
- All flutter_animate call sites route through the PluriAnimate reduced-motion gate (zero direct .animate() left)
- Locale-aware short dates via intl DateFormat (new lib/l10n/formato_fechas.dart) replacing the hardcoded DD/MM/YYYY; proper plural messages for the favorites counter; example stream URL as a localized key - all 13 locales
- Rounded shimmer placeholders matching card radii; shimmer loading state in search instead of a bare spinner; rounded icon variants unified in settings; bottom-sheet conventions on the custom station form
- Fix latent debug crash: vacation editor read AppLocalizations in initState
- 11 new tests (121 total green), flutter analyze clean
- Integrate audio_session (new servicio_audio_session.dart): incoming calls pause the radio and resume on end, headphone unplug pauses without auto-resume, permanent focus loss never auto-resumes, duck lowers volume
- Add play-intent flag to ServicioAudio so interruption handling and future reconnect logic can distinguish user pause from system-driven stops
- Eliminate read-modify-write race in ServicioAlarmas with an in-memory cache and single-writer queue across all mutations; recalcularTodas persists only when state actually changed
- Convert ServicioAlarmasAndroid static StreamController/handler to injectable instance fields, restoring test isolation
- Inject a single cached SharedPreferences from main.dart across services and state (removes 23 inline getInstance() calls)
- Move configurarLocalizaciones out of MiniReproductor.build() (was running on every rebuild during playback)
- Bound the alarm fire-dedup set (cap 200 entries, 24h pruning)
- 12 new tests (89 total green), flutter analyze clean
- ServicioAudio: delega a PluriWaveAudioHandler (audio_service) para
mantener audio vivo en background. AudioService.init() en main.dart.
onTaskRemoved() libera player. mediaItem con nombre/artista/artwork.
- ServicioRadio: lastcheckok=1 en todas las peticiones — solo emisoras
verificadas como funcionales por Radio Browser API.
- EstadoRadio: errorStream (broadcast) para errores de reproducción y
búsqueda. App.dart suscribe y muestra SnackBar flotante 3s.
Los errores de carga de lista siguen como banner inline.
- Icono: generado con SDXL (morado, ondas radio blancas, Material You).
5 densidades Android (48-192px), ic_launcher_round añadido.
- Flutter create con org es.freetimelab
- pubspec.yaml con dependencias core (just_audio, audio_service, provider, sqflite)
- README con features y stack
- Assets preparados
FreeTLab
Javier Bautista Fernández