History review requested by the owner: when and why did the Android Auto
UI stop working.
ANSWER: 31 July, commit 2540556, "give the equalizer actions distinct,
state-aware icons".
9eff760 (31-07) androidIcon: 'drawable/ic_stat_pluriwave' -> in the APK
2540556 (31-07) androidIcon: 'drawable/ic_auto_eq_on' -> NEVER in it
That commit swapped a drawable that shipped for two that the stale CI
resource cache never included. From that moment getResourceId returned 0,
PlaybackStateCompat.CustomAction.Builder threw, and the throw aborted
AudioService.setState before the session was published -- so every Android
Auto symptom chased since is one line of that commit. The bitter part is
that 2540556 was itself a fix for a report about two identical icons.
Three changes.
1. CI guard. The build now unzips the release APK and fails if a drawable
resolved by NAME at runtime is missing. Resolution by name cannot fail at
compile time -- it fails in the car, silently, with id 0. This class of
bug shipped undetected for a week; it cannot ship again.
2. Skipping stations now walks the favourites GROUP first, as requested:
group -> all favourites -> my stations -> catalogue. Two deliberate
exclusions, both tested: `sinAsignarId` is the ABSENCE of a group, not a
group, so those walk all favourites; and a one-member group falls through
too, or both buttons would be dead ends. The group is read from the
FAVOURITE record, never from the playing station -- that one is rebuilt by
emisoraDesdeMediaItem, which carries no group id and would always report
"unfiled".
3. Diagnostics on the station skip. It was reported as doing nothing for
radio, and every early return in that method is silent: an empty list and
a single-entry list look identical from outside. The log now names which
one fired, so the next capture answers it instead of another hypothesis.
Tests: 1161 -> 1165.
Every diagnostic line in the audio path used `dart:developer`'s `log()`.
That function writes to the VM service, which a RELEASE build does not
have — so in the only build that ever runs in a car, all eleven of them
went nowhere. `debugPrint`/`print` do reach logcat in release; `log()`
does not.
That includes the two channels built specifically to end the guessing:
- `registrarErrorAudioService`, which subscribes to
`AudioService.asyncError` so the plugin's swallowed platform exceptions
stop vanishing (b0271fa). It moved them from a dropped PublishSubject
to a dropped log call.
- `_trazarEstadoPublicado`, the published-state trace added in 7054a4c to
settle why the car's play button never becomes pause.
So "no evidence" was never a quiet app. It was an app writing its
evidence somewhere release builds discard. Several rounds of hypotheses
were argued without data that the app was already producing.
All eleven now use `debugPrint` with a `[PluriWave][Tag]` prefix, so one
filter catches the audio path and the existing alarm lines together:
adb logcat | grep PluriWave
No behaviour changes. Tests: 1158, unchanged.
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: on the Android Auto playback screen the play/pause button stays
on PLAY while audio is audibly playing, and "it used to work, in the
latest versions it doesn't".
Previous rounds looked for a regression in this repo's audio commits and
found none: every playbackState.add site publishes playing:true with a
ready processingState, and AudioService.getPlaybackState maps that to
STATE_PLAYING. That search was aimed at the wrong thing.
The Android for Cars guide ("Enable playback control") is explicit:
"Android Auto and AAOS display playback controls based on the actions
that are enabled in the PlaybackStateCompat object. By default, your app
must support the following actions: ACTION_PLAY, ACTION_PAUSE,
ACTION_STOP, ACTION_PLAY_FROM_MEDIA_ID, ACTION_PLAY_FROM_SEARCH."
systemActions has carried only `seek` + `stop` since e9d1f67, the first
commit of the project -- git log -S confirms it was never once edited. So
the required actions have never been advertised, and no audio commit can
explain a change in behaviour. Android Auto ships as its own app and
updates itself, which is how a working screen breaks with a clean repo
history. That fits the report better than any commit here does.
The phone notification was never affected: it builds its play/pause
button from `controls`, not from these bits, which is exactly why the
symptom is car-only.
Skip actions stay conditional on an active queue on purpose -- the same
guide notes Auto reserves the prev/next slots for them and gives the
space to custom actions when the app does not support them, and that is
the space the equalizer toggle needs.
ACTION_PLAY_FROM_SEARCH is now implemented rather than merely claimed:
advertising it unimplemented would have the car's assistant accept "play
Radio X" and silently do nothing. emisoraParaBusqueda ranks exact name,
then prefix, then substring, then country, accent- and case-insensitive
because voice transcription rarely gets diacritics right; favourites are
searched first so they win a name tie, and a miss plays nothing rather
than something arbitrary.
Still a hypothesis for the play/pause symptom, not a confirmed fix -- it
is documentation-backed and cheap, but only a head unit can confirm it.
Tests: 1132 -> 1141.
Continuation of 7054a4c: the native anchor guard alone did not fix the
reported ~1444-minute snooze, because Dart runs AFTERWARDS on the
pre-notice path and had no guard at all.
1. Snooze from the pre-notice notification, root cause.
app.dart dispatches AFTER the receiver's postponeNext already ran and
after startActivity, and EstadoAlarmas.posponerProximaDesdePreaviso took
whatever occurrence it was handed on faith, then persisted and
rescheduled from it -- the last snooze path in the codebase with no
occurrence guard. The occurrence itself is not trustworthy either:
app.dart falls back to alarma.proximaEjecucion when the native event
carries none, and that field can already point at tomorrow.
_ocurrenciaSonando is generalized into _ocurrenciaValida with a caller-
supplied forward allowance and an externally-proposed occurrence that
still has to survive the same check. The pre-notice path gets a
ventanaPreaviso (30 min, matching AlarmScheduler.PRE_NOTICE_MILLIS) --
unlike the ringing-screen guard, this occurrence legitimately has not
happened yet, which is exactly why the existing helper could not just be
reused here.
Also heals state already poisoned by the missing guard: a snoozeHasta
parked past a 3-hour ceiling (posponerEjecucion clamps to 120 minutes,
so anything beyond that is corruption, not a long real snooze) is
dropped on recalculation. Without it, an alarm poisoned on a build
before this fix keeps reporting tomorrow after updating, and the user
reasonably concludes nothing changed.
2. Android Auto: no progress bar or time labels on a local track.
updatePosition was never set anywhere in the handler, so it sat at its
Duration.zero default while copyWith refreshed updateTime to now on every
push -- the car was told "position 0, as of right now" on every event, a
bar pinned at the start regardless of what was actually playing. Now set
from _player.position on both the player-state and buffered-position
listeners (the latter ticks ~2/s, which is what keeps the car's bar
smooth between player-state events). Also stream the MediaItem's
duration once the source reports it -- Auto draws no bar at all without
one, and radio streams correctly keep reporting none (live audio has no
length).
3. Android Auto: drop the Ecualizador browsable folder.
Owner decision after driving with it: a browsable six-preset list is
more interaction than a driver wants, and on/off from all three player
views (already fixed in 7054a4c to win the custom-action slot) is the
only equalizer control that belongs in the car. Preset selection stays on
the phone. This lands back on the redesign mockup's original rule ("sin
carpeta de ecualizador"), now for a road-tested reason. getChildren keeps
answering the folder's id transitionally, since a head unit can have the
old tree cached for a session or two.
The two "raiz always includes/ends with Ecualizador" tests are replaced,
not regressed -- same move the codebase already made once in the other
direction for the same folder.
Tests: 1127 -> 1132.
Three reported issues, two fixed and one instrumented.
1. Posponer left the alarm snoozed ~1444 minutes (24h04m).
Traced end to end in Kotlin. onAlarmFired runs from the receiver BEFORE the
ringing notification exists, and persists snoozeOriginMillis = null plus a
triggerAtMillis already advanced to TOMORROW by computeNextTriggerMillis.
snooze() then anchored on `spec.snoozeOriginMillis ?: spec.triggerAtMillis`
and picked up tomorrow. The existing clamp could not catch it: it only
rescues anchors in the PAST, so an anchor +24h out sails through. The
countdown text is honest -- ceilMinutes(snoozeUntil - now) over Dart's own
template -- the corrupt value is snoozeUntil. With N=5 and a tap at T+1min
the arithmetic lands on 1444 exactly.
This is the defect a9da855 fixed on the Dart side with
EstadoAlarmas._ocurrenciaSonando, after 9c7cf4e had fixed only one of two
adjacent callers. The native lane never got that guard. Now it has
anchorOccurrenceMillis, with a per-surface forward allowance: none for
snooze() (the ringing notification closes an occurrence that has arrived)
and a full PRE_NOTICE_MILLIS for postponeNext() (the pre-notice
notification's occurrence legitimately has not).
No Kotlin test source set exists in this project, so CI cannot verify this
and no Dart test sees it (all use FakePuertoAlarmasAndroid). Verified by
reading; needs an on-device pass.
2. The equalizer toggle stayed invisible on the Android Auto playback
screen even on v1.2.14+136, which does contain it.
On Android 13+ createCustomAction (AudioService.java:466-469) turns
MediaControl.stop into a custom action too, so the car receives TWO in list
order and stop was first -- a head unit exposing one custom-action slot
shows that and buries the rest in an overflow menu. The equalizer now
precedes stop and wins the slot; it is the better occupant, since the car
has its own path to stop playback while the equalizer is reachable no other
way from that screen.
No platform detection needed, and the phone notification is untouched on
every API level: nativeActions comes out [prev?, play/pause, stop, next?]
below 13 and [prev?, play/pause, next?] on 13+, exactly as before. Both are
now asserted.
The list also moves to a public construirControlesTransporte. The guard
test used to re-declare its own copy of the shape, so it stayed green while
asserting a list lib/ no longer produced. It calls the real builder now.
3. Android Auto shows PLAY while a station is audibly playing: NOT fixed,
deliberately.
The car takes that icon from PlaybackStateCompat.getState()
(AudioService.java:601-611), not from controls -- so none of the recent
controls work can be the cause. All eight playbackState.add sites were
audited and none publishes playing:false while audio runs, which leaves no
traced input to fix. A proposed resync off bufferedPositionStream was
rejected: it can publish a spurious idle, which AudioService.java:565-567
turns into stop() and tears down the foreground service -- the exact
regression abc6b47 fixed, on the highest-frequency listener in the handler.
Added instead a change-gated trace of the state actually published, with
eqDisponible alongside it (that flag gates the equalizer action and is
otherwise unobservable). One car session with `adb logcat -s ServicioAudio`
settles both this and issue 2.
Tests: 1124 -> 1127.
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.
The equalizer toggle appended to the transport controls was aborting the
whole notification. controls feeds BOTH the phone notification and the
car playback screen, and AudioService.setState walks every control
through createCustomAction (AudioService.java:513-520) BEFORE reaching
mediaSession.setPlaybackState (:552) and enterPlayingState (:559) -- the
only place the notification is ever posted.
createCustomAction resolves the icon by name via getIdentifier (:415-420),
which returns 0 on a miss, and passes it to
PlaybackStateCompat.CustomAction.Builder, which throws on a 0 icon or an
empty label. That throw aborts setState, so the media session is never
published: no shade widget, no lock-screen controls, not even the small
status-bar icon. ExoPlayer runs independently so audio keeps playing, and
until asyncError got a subscriber the exception was dropped silently.
Nothing is lost in the car: the Ecualizador browse folder already lists
Desactivar plus every preset by name, which is Auto's own idiom for
choosing among options.
just_audio's playerStateStream is .distinct() over a value-equal
PlayerState, so stopping an already-idle player emits nothing. Paired
with the source-change mask -- which writes loading into playbackState
rather than filtering at read time -- a stop landing before native init
completed would leave the state at loading forever.
audio_service only tears the foreground service down on a non-idle to
idle transition, so that window produced an unkillable notification
stuck on "cargando" with a dead Stop button: strictly worse than the
teardown this branch removes.
Additive and idempotent -- when the player does emit its own idle, this
just lands first.
Root cause of the disappearing media notification, and it is self-inflicted
on EVERY Android version — no plugin patch involved.
`audio_service`'s `_observePlaybackState` (audio_service.dart:1131-1136) calls
`AudioService._stop()` on ANY transition into `idle` from a non-idle state.
That reaches `stopService()` -> `deactivateMediaSession()` ->
`notificationManager.cancel(NOTIFICATION_ID)`. The notification is re-posted
at exactly one place, `internalStartForeground()`, reachable only from the
`!wasPlaying && playing` edge in `setState()`, and its FIRST statement is
`ContextCompat.startForegroundService(...)` — which on API 31+ throws
`ForegroundServiceStartNotAllowedException` whenever the process is not in a
foreground state.
Every station change walked straight into that. `_cambiarFuente` pushes
`loading`, then `_recrearPlayer` disposes the old `AudioPlayer` and builds a
FRESH one; a fresh player's first `playerStateStream` event is always `idle`,
and the listener forwarded it verbatim. So `loading -> idle` tore the
foreground service down mid-source-change, and recovery depended on the
following `playing: true` edge restarting it. Screen off, lock screen, or an
Android Auto / Bluetooth-initiated start is precisely where the platform
refuses that restart: audio keeps playing, the notification never returns.
That is exactly what the user reports.
The mapping decision moves out of the private `_mapProcState` into a pure
top-level `mapearEstadoProceso(proc, {required bool cambiandoFuente})`, so the
one line that decides whether the foreground service dies is unit-testable
without instantiating the handler (which needs MethodChannels). It is
byte-for-byte identical to the old switch in every case except `idle` while a
source change is in flight, which now maps to `loading`. The test asserts the
full ProcessingState x cambiandoFuente matrix against a literal transcription
of the previous mapping, and asserts both directions explicitly: a real stop
still yields `idle`, a source-change idle yields `loading`, and `idle` is the
only case where the two branches differ at all.
The only risk this introduces is a `_cambiandoFuente` stuck at `true`: a real
user stop would be masked away from `idle`, the service would never stop, and
the notification would become unkillable. So the flag is cleared by four
independent mechanisms rather than one audited path:
- a `finally` around the whole body of `_cambiarFuente`, which covers normal
completion, BOTH `revision != _revisionFuente` early returns, every
`rethrow` out of a catch clause, and any non-`Exception` `Error` that none
of the three clauses matches;
- eagerly at the top of each of the three catch clauses — needed on top of
the `finally` because `_gestionarErrorReproduccion` calls `_player.stop()`
WITHOUT awaiting it, so that `idle` could otherwise land while the mask
was still up;
- right after `setUrl` resolves, before anything below can await, since the
fresh player's transient `idle` is already behind us at that point;
- at the start of `stop()` — before `_player.stop()` — and at the start of
`_gestionarErrorReproduccion`, which makes the invariant total: the flag
is `false` before every single `_player.stop()` call in this class.
`stop()` matters most: `BaseAudioHandler.stop()` is empty, so the handler
never pushes `idle` itself — teardown is driven entirely by the player's
emission. A stop landing while a station change was still in flight would
otherwise be masked and the notification would survive the stop.
Audited: two `_player.stop()` call sites exist and both are preceded by a
clear; `_recrearPlayer` has exactly one caller and it is guarded; the old
player cannot emit during `_recrearPlayer` because its subscriptions are
cancelled first.
`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.
The equalizer's preset-cycling custom action (eq_preset_siguiente) and
its ic_auto_eq_preset drawable are no longer needed now that the
"Ecualizador" folder lists all six presets directly: the folder replaces
what the cycle action did, and this frees a scarce Android Auto custom
action slot.
The on/off toggle is now the equalizer's only custom action.
On-device feedback showed the equalizer's preset-cycling custom action
looked dead: many head units render custom actions icon-first, and a
monochrome icon cannot legibly encode "which of six presets" the way a
browsable list's text rows can.
This adds an "Ecualizador" folder to the car's browse tree, listing
"Desactivar" first, then the six factory presets by name, with the
currently-active one marked. Selecting a preset routes through the same
playFromMediaId seam every other browse-tree leaf already uses; picking
a preset while the equalizer is off turns it on and applies that preset.
Supersedes the earlier "no equalizer folder" rule (commit 2403da3),
which predated this feedback -- see decision auto/ecualizador-diseno.
The preset-cycling custom action still coexists with the folder in this
commit; it is removed in the next one.
On a car head unit the custom actions render icon-first, so two actions
sharing ic_stat_pluriwave were indistinguishable and the toggle gave no
sign of whether the equalizer was on.
Each action now has its own drawable, and the toggle swaps between
ic_auto_eq_on and ic_auto_eq_off so its state is legible at a glance.
The equalizer stopped applying after another app interrupted audio (e.g. a
navigation app's voice prompt): play a station with EQ working, let the
prompt speak, resume -- the audio sounds flat until the station is
re-tapped.
debeReaplicarEcualizador only re-attaches the equalizer when the native
player session id actually changes. A short transient interruption keeps
the SAME session (no id rotation), so that trigger never fires, while
Android's AudioEffect framework can let a higher-priority client silently
disable this app's effect instance in the meantime.
Add reaplicarEcualizador() to ObjetivoAudioInterrumpible, implemented as a
thin delegate to the existing _activarEcualizador() (already the correct
idempotent setEnabled + re-push-gains path). ServicioAudioSession calls it
on resume-from-pause (after reanudar()) and on un-duck (after
setAtenuado(false)) -- additive to the existing session-id trigger, not a
replacement. The method takes no argument, so it can only re-assert
whatever enabled/disabled state the handler already holds -- an
interruption cycle with the equalizer OFF stays OFF.
Expose the equalizer's on/off toggle and preset choice as PlaybackStateCompat
custom actions on the now-playing screen. The redesign's removal of the
in-car equalizer FOLDER from the browse tree stays as-is (2403da3) -- this
is a different surface (playback screen custom actions, not a browse
folder) and does not reintroduce it.
Deliberately just 2 actions -- an on/off toggle plus a cycling preset
action, not one action per preset -- since Android Auto only surfaces a
limited number of custom actions. Both reuse the existing
setEcualizadorActivo/aplicarPreset entry points (the same ones
EstadoEcualizador's phone settings screen uses), so a car tap and a phone
tap behave identically and both keep the action labels in sync. Reuses the
bundled ic_stat_pluriwave drawable (the notification's own equalizer-bars
icon) -- zero new native assets. The 5-band constraint is untouched.
New pure, unit-tested functions in servicio_audio.dart: presetSiguiente,
nombrePresetVisible, controlesEcualizadorPersonalizados. New ARB keys
(eqCustomActionEnableLabel/DisableLabel/PresetLabel) across all 13 locales,
regenerated via flutter gen-l10n.
Stations and tracks with no artwork showed empty tiles in the car. The
browse tree's itemEmisora/_itemLocal already fell back to the rotating
station_art_* drawable via artUriPara/artUriLocal, but the "now playing"
MediaItem built when actually playing something (car tap, phone-initiated
play, folder-queue advance, direct local-track tap) did not, so the car's
now-playing screen still went blank.
Reuse the SAME artUriPara/artUriLocal fallback (already the project's one
selection scheme, mirroring PluriStationArtFallback) at every "now playing"
construction site: reproducirPorMediaId, ServicioAudio.reproducir (now via
the extracted, unit-tested mediaItemParaEmisora), construirMediaItemColaLocal
and reproducirPistaLocal.
Guard the reverse direction too: emisoraDesdeMediaItem (extracted from the
handler's private method, now unit-tested) only reflects artUri back into
Emisora.favicon when it passes faviconUsable, so the phone UI's
CachedNetworkImage widgets never attempt a doomed fetch of the car's
android.resource:// fallback URI -- they keep falling back to
PluriStationArtFallback exactly as before.
The car tree carried a whole equalizer feature: an `Ecualizador` root folder
with the six factory presets, a browsable `Personalizado` folder, five band
folders and thirteen gain leaves each, plus the media-id namespaces, routing
predicates, persistence-targeting and children-changed plumbing that fed
them. Equalization is a phone task; the driver should not be tuning 5 bands
from a car screen.
Removed: the `eq_preset:`/`eq_banda:`/`eq_gain:` namespaces and their
predicates and parsers, the `ecualizador`/`eq_custom` folder ids and their
getChildren branches, itemPresetEq/presetsEq/itemEqPersonalizado/bandasEq/
gananciasBandaEq, resolverPresetEq, presetPersonalizadoEfectivo,
dispositivoDestinoEq, debeAplicarPrincipalAhora/debeAplicarSeleccionAhora,
aplicarPresetPorMediaId, aplicarGananciaPorMediaId, and in the handler the
playFromMediaId branches, _presetPersonalizadoAuto, _dispositivoActivoAuto,
_dispositivoDestinoEqAuto and the subscribeToChildren/_hijosSubjects
notification machinery that existed only to refresh band titles after a gain
tap.
Deliberately KEPT: automatic per-device EQ. Reaching the car still applies
that device's preset, because that lives in EstadoEcualizador and the
output-device detection, not in this tree — it works with Android Auto or
without it. Configuring is what moves to the phone; applying stays automatic.
Also kept: the `eq_preset_*_v1` SharedPreferences keys in
ServicioEcualizador, which share a name with the deleted media-id prefix by
coincidence only and hold the phone's own presets.
The root folder set goes from five entries to four (three without local
music); its test now asserts no equalizer folder is offered at all, so a
reintroduction has to be deliberate.
- MainActivity: onListen re-emits the current active device and registers
the audio device callback idempotently, so recreated activities resync
instead of freezing the active-device id on a disconnected device.
- servicio_dispositivo_audio: resubscribir() re-opens the event channel;
estado_ecualizador exposes refrescarDispositivoActual() with an
in-flight guard, invoked on app resume and when opening advanced EQ
options, clearing stale green-dot device selections.
- navegacion_auto/servicio_audio: new 'Personalizado' browse tree in
Android Auto (5 band folders, 13 gain steps each) applied live via
setBanda; preset and gain taps persist at device level when
multi-device EQ is active and respect station/matrix overrides,
with apply-before-persist ordering and children-changed notifications.
- l10n: regenerate stale generated localizations; add rxdart as direct
dependency for the subscribeToChildren override.
Adds "Reproducir carpeta" (sequential) and "Reproducir aleatorio"
(Fisher-Yates over the name-sorted order) as folder-scoped playable
actions, with auto-advance on track completion and skip next/prev.
Isolation from live radio is structural, not disciplinary: the
public playMediaItem always clears the local queue on any call, and
a new private _encolarCambioFuente is the only path that can advance
within it. _cambiarFuente, ControladorReconexion, and the reconnect
error path are untouched -- confirmed by a byte-for-byte empty diff
on all 4 pre-existing radio/reconnect regression suites, independently
re-run before and after (21/21 both times).
Handler wiring itself is static-review-only (PluriWaveAudioHandler
can't be unit-instantiated); the isolation/advance/race-guard
decision logic is extracted into cola_local.dart's pure functions,
which are fully unit-tested.
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.
Adds an Ecualizador folder listing the 6 fixed presets; selecting one
applies and persists it through the existing headless-safe seam
without touching playback or the now-playing media item.
Favoritos now renders non-empty custom groups as grupo:<id>
sub-folders (hidden when empty) with ungrouped stations left as
direct leaves, reusing the existing hijos() path so the zero-groups
case stays byte-identical to today's flat list.
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.
ExoPlayer assigns a new audio session id after transient audio-focus
interruptions (navigation prompts, radar warnings), leaving the
AndroidEqualizer attached to the dead session so playback resumed
without equalization until the next station switch. The session-id
listener now detects genuine rotations through a dedicated guard and
re-activates the equalizer with the current preset, gated on EQ
availability to stay clear of player teardown/rebuild.
- Construct the audio player with an enlarged live-stream buffer (15-50s forward cushion, 2.5s to start, 5s after rebuffer) so short network drops play through silently
- Add reconnect-on-stall state machine with bounded exponential backoff (1/2/4/8/16s, ~90s total window, 5 attempts) that re-prepares to the live edge; backoff/decision logic extracted to controlador_reconexion.dart as pure testable code
- Surface a new reconnecting playback state in the mini player and full player (localized in all 13 locales) instead of error dialogs during the retry window; a single friendly error appears only after exhaustion
- Guard interplay: user pause/stop cancels retries, audio interruptions cancel reconnect, alarm wake-up path keeps precedence, recording fails cleanly during drops
- Reset retry budget on station change; route stream timeouts through the network-error class
- 10 new tests (99 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
- Added state management for startup retry and custom station handling in `EstadoRadio`.
- Created tasks for implementing strict TDD with RED tests for HTTP failure retries and EQ persistence.
- Developed verification report to ensure compliance with TDD practices.
- Introduced fake services for testing, including `FakeServicioAudio`, `FakeServicioFavoritos`, and `FakeServicioRadio`.
- Implemented widget tests for `PantallaInicio` and `PantallaFavoritos` to validate UI behavior with custom stations.
- Enhanced `ServicioRadio` to support host rotation and retry logic for API calls.
- Established a new configuration file to enforce project constraints and testing rules.
**Fix 1 — HTTP cleartext (streams sin HTTPS):**
- Añadir android/app/src/main/res/xml/network_security_config.xml con
cleartextTrafficPermitted=true para permitir streams de radio HTTP
- Referenciar en AndroidManifest.xml con android:networkSecurityConfig
- Resuelve: 'Cleartext HTTP traffic to [host] not permitted' en ExoPlayer
- Radio Paradise (Dance Wave, HTTP) y otras radios HTTP funcionan ahora
**Fix 2 — Gestión de error TYPE_SOURCE y todos los PlaybackException:**
- Añadir listener en playbackEventStream.onError en PluriWaveAudioHandler
- _gestionarErrorReproduccion() emite AudioProcessingState.error al UI,
loggea el error y resetea el player a estado idle limpio
- _mensajeAmigable() traduce códigos ERROR_CODE_IO_*, ERROR_CODE_PARSING_*,
ERROR_CODE_DECODING_* y mensajes de Cleartext/HandshakeException a texto legible
- EstadoRadio.reproducir() captura la excepción y cancela el timer si estaba activo
- EstadoRadio escucha el estadoStream y cancela timer ante cualquier error
**Fix 3 — Artwork con certificado autofirmado:**
- errorWidget en CachedNetworkImage captura HandshakeException silenciosamente
- Muestra _iconoFallback (icono de radio) en lugar de imagen rota
- El error de artwork no se propaga ni interrumpe la reproducción
**Fix 4 — UI consistente en estado de error:**
- PantallaReproductor._Controles muestra mensaje + botón Reintentar en error
- PantallaReproductor._Artwork muestra overlay wifi_off en estado de error
- MiniReproductor muestra botón refresh (reintentar) en estado de error
- EstadoReproduccion.error ya estaba definido; ahora el estadoStream lo emite
- Timer cancelado automáticamente cuando la reproducción falla
- Test de smoke corregido (boilerplate MyApp → placeholder válido)
Fixes: cleartext HTTP, cert autofirmado, ExoPlayer TYPE_SOURCE, UI inconsistente
- 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.
FreeTLab
Javier Bautista Fernández