feat(tile): Add ANC Quick Settings tile

app/src/main/AndroidManifest.xml

@@ -141,6 +141,20 @@
             android:name=".monitor.core.worker.MonitorService"
             android:foregroundServiceType="connectedDevice"
             android:exported="false" />
+
+        <service
+            android:name=".main.ui.tile.AncTileService"
+            android:exported="true"
+            android:icon="@drawable/ic_anc_on"
+            android:label="@string/tile_anc_label"
+            android:permission="android.permission.BIND_QUICK_SETTINGS_TILE">
+            <intent-filter>
+                <action android:name="android.service.quicksettings.action.QS_TILE" />
+            </intent-filter>
+            <meta-data
+                android:name="android.service.quicksettings.ACTIVE_TILE"
+                android:value="false" />
+        </service>
     </application>
 
-</manifest>
+</manifest>

app/src/main/java/eu/darken/capod/main/ui/components/AncModeUi.kt

@@ -1,6 +1,7 @@
 package eu.darken.capod.main.ui.components
 
 import android.content.Context
+import androidx.annotation.DrawableRes
 import androidx.annotation.StringRes
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.twotone.AutoAwesome
@@ -28,3 +29,11 @@ fun AapSetting.AncMode.Value.icon(): ImageVector = when (this) {
     AapSetting.AncMode.Value.ADAPTIVE -> Icons.TwoTone.AutoAwesome
 }
 
+@DrawableRes
+fun AapSetting.AncMode.Value.iconDrawableRes(): Int = when (this) {
+    AapSetting.AncMode.Value.OFF -> R.drawable.ic_anc_off
+    AapSetting.AncMode.Value.ON -> R.drawable.ic_anc_on
+    AapSetting.AncMode.Value.TRANSPARENCY -> R.drawable.ic_anc_transparency
+    AapSetting.AncMode.Value.ADAPTIVE -> R.drawable.ic_anc_adaptive
+}
+

app/src/main/java/eu/darken/capod/main/ui/overview/OverviewViewModel.kt

@@ -23,6 +23,7 @@ import eu.darken.capod.main.core.MonitorMode
 import eu.darken.capod.main.core.PermissionTool
 import eu.darken.capod.monitor.core.DeviceMonitor
 import eu.darken.capod.monitor.core.PodDevice
+import eu.darken.capod.monitor.core.tierRank
 import eu.darken.capod.monitor.core.worker.MonitorControl
 import eu.darken.capod.pods.core.apple.aap.AapConnectionManager
 import eu.darken.capod.pods.core.apple.aap.protocol.AapCommand
@@ -175,7 +176,7 @@ class OverviewViewModel @Inject constructor(
 
         val profiledDevices: List<PodDevice> by lazy {
             devices.filter { it.profileId != null }.sortedWith(
-                compareBy<PodDevice> { deviceTierRank(it) }
+                compareBy<PodDevice> { it.tierRank() }
                     .thenBy { profileOrder[it.profileId] ?: Int.MAX_VALUE }
             )
         }
@@ -284,12 +285,5 @@ class OverviewViewModel @Inject constructor(
     companion object {
         private const val FREE_DEVICE_LIMIT = 1
         private val TAG = logTag("Overview", "VM")
-
-        /** Connection tier rank for sorting: lower = higher priority. */
-        internal fun deviceTierRank(device: PodDevice): Int = when {
-            device.isSystemConnected -> 0
-            device.isLive -> 1
-            else -> 2
-        }
     }
 }

app/src/main/java/eu/darken/capod/main/ui/tile/AncTileSendCoordinator.kt

@@ -0,0 +1,142 @@
+package eu.darken.capod.main.ui.tile
+
+import eu.darken.capod.common.bluetooth.BluetoothAddress
+import eu.darken.capod.common.coroutine.AppScope
+import eu.darken.capod.common.debug.logging.Logging.Priority.ERROR
+import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
+import eu.darken.capod.common.debug.logging.asLog
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.common.debug.logging.logTag
+import eu.darken.capod.pods.core.apple.aap.AapConnectionManager
+import eu.darken.capod.pods.core.apple.aap.protocol.AapCommand
+import eu.darken.capod.pods.core.apple.aap.protocol.AapSetting
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+import javax.inject.Singleton
+import kotlin.time.Duration
+import kotlin.time.Duration.Companion.seconds
+
+/**
+ * Process-scoped trailing-edge debouncer for tile-driven `SetAncMode` commands.
+ *
+ * The QS panel collapses after each tap, destroying the [AncTileService] instance.
+ * If the pending-job state lived on the service, taps across consecutive panel
+ * sessions wouldn't cancel each other — every tap would fire a separate
+ * `SetAncMode`, overwhelming the AAP verification loop and triggering
+ * "Rejected after retry" storms that leave the device unresponsive until the
+ * app restarts. Keeping the job here, on a `@Singleton`, means a tap in panel
+ * session B can cancel the deferred send queued by panel session A.
+ */
+@Singleton
+class AncTileSendCoordinator @Inject constructor(
+    @AppScope private val appScope: CoroutineScope,
+    private val aapManager: AapConnectionManager,
+) {
+
+    private val lock = Any()
+    private val pendingJobs = mutableMapOf<BluetoothAddress, Job>()
+    private val timeoutJobs = mutableMapOf<BluetoothAddress, Job>()
+
+    private val _pendingModes = MutableStateFlow<Map<BluetoothAddress, AapSetting.AncMode.Value>>(emptyMap())
+    val pendingModes: StateFlow<Map<BluetoothAddress, AapSetting.AncMode.Value>> = _pendingModes.asStateFlow()
+
+    fun scheduleSetAncMode(
+        address: BluetoothAddress,
+        mode: AapSetting.AncMode.Value,
+        debounce: Duration,
+        timeout: Duration = 5.seconds,
+    ) {
+        synchronized(lock) {
+            val replacing = pendingJobs[address]?.isActive == true
+            log(TAG, VERBOSE) { "scheduleSetAncMode($mode, addr=$address, debounce=$debounce, replacingPending=$replacing)" }
+            _pendingModes.value = _pendingModes.value + (address to mode)
+
+            pendingJobs.remove(address)?.cancel()
+            timeoutJobs.remove(address)?.cancel()
+
+            pendingJobs[address] = appScope.launch {
+                delay(debounce)
+                log(TAG, VERBOSE) { "debounce elapsed, dispatching SetAncMode($mode) to AAP for $address" }
+                try {
+                    aapManager.sendCommand(address, AapCommand.SetAncMode(mode))
+                    log(TAG, VERBOSE) { "sent SetAncMode($mode) to $address" }
+                } catch (e: CancellationException) {
+                    log(TAG, VERBOSE) { "send for $mode cancelled (newer tap superseded it)" }
+                    throw e
+                } catch (e: Exception) {
+                    log(TAG, ERROR) { "sendCommand failed: ${e.asLog()}" }
+                    clearPendingTarget(address, mode)
+                }
+            }
+
+            timeoutJobs[address] = appScope.launch {
+                delay(timeout)
+                if (clearPendingTargetFromTimeout(address, mode)) {
+                    log(TAG, VERBOSE) { "pending tile target $mode timed out before device confirmation" }
+                }
+            }
+        }
+    }
+
+    internal fun applyPendingTarget(state: AncTileState): AncTileState {
+        val active = state as? AncTileState.Active ?: return state
+        val address = active.deviceAddress ?: return active
+        val target = pendingModes.value[address] ?: return active
+
+        if (target !in active.visible) return active
+
+        if (active.isConfirmed(target)) return active
+
+        return active.copy(pending = target)
+    }
+
+    internal fun acknowledgeDeviceState(state: AncTileState) {
+        val active = state as? AncTileState.Active ?: return
+        val address = active.deviceAddress ?: return
+        val target = pendingModes.value[address] ?: return
+
+        if (target !in active.visible || active.isConfirmed(target)) {
+            clearPendingTarget(address, target)
+        }
+    }
+
+    private fun AncTileState.Active.isConfirmed(target: AapSetting.AncMode.Value): Boolean =
+        pending == target || (current == target && pending == null)
+
+    private fun clearPendingTarget(
+        address: BluetoothAddress,
+        expectedMode: AapSetting.AncMode.Value,
+    ): Boolean = synchronized(lock) {
+        val current = _pendingModes.value[address] ?: return@synchronized false
+        if (current != expectedMode) return@synchronized false
+
+        _pendingModes.value = _pendingModes.value - address
+        pendingJobs.remove(address)?.cancel()
+        timeoutJobs.remove(address)?.cancel()
+        true
+    }
+
+    private fun clearPendingTargetFromTimeout(
+        address: BluetoothAddress,
+        expectedMode: AapSetting.AncMode.Value,
+    ): Boolean = synchronized(lock) {
+        val current = _pendingModes.value[address] ?: return@synchronized false
+        if (current != expectedMode) return@synchronized false
+
+        _pendingModes.value = _pendingModes.value - address
+        pendingJobs.remove(address)?.cancel()
+        timeoutJobs.remove(address)
+        true
+    }
+
+    companion object {
+        private val TAG = logTag("Tile", "Anc", "Coord")
+    }
+}

app/src/main/java/eu/darken/capod/main/ui/tile/AncTileService.kt

@@ -0,0 +1,227 @@
+package eu.darken.capod.main.ui.tile
+
+import android.app.PendingIntent
+import android.content.Intent
+import android.graphics.drawable.Icon
+import android.os.SystemClock
+import android.service.quicksettings.Tile
+import android.service.quicksettings.TileService
+import dagger.hilt.android.AndroidEntryPoint
+import eu.darken.capod.R
+import eu.darken.capod.common.bluetooth.BluetoothAddress
+import eu.darken.capod.common.coroutine.DispatcherProvider
+import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
+import eu.darken.capod.common.debug.logging.Logging.Priority.WARN
+import eu.darken.capod.common.debug.logging.log
+import eu.darken.capod.common.debug.logging.logTag
+import eu.darken.capod.common.flow.throttleLatest
+import eu.darken.capod.common.hasApiLevel
+import eu.darken.capod.main.ui.MainActivity
+import eu.darken.capod.main.ui.components.iconDrawableRes
+import eu.darken.capod.main.ui.components.shortLabel
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.cancel
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import javax.inject.Inject
+import kotlin.time.Duration.Companion.seconds
+
+/**
+ * Quick Settings tile that cycles ANC modes for the user-perceived primary AirPods.
+ * Mirrors [eu.darken.capod.main.ui.widget.AncGlanceWidget] but renders into the system
+ * QS panel instead of a home-screen widget.
+ */
+@AndroidEntryPoint
+class AncTileService : TileService() {
+
+    @Inject lateinit var dispatcherProvider: DispatcherProvider
+    @Inject lateinit var sendCoordinator: AncTileSendCoordinator
+    @Inject lateinit var stateStore: AncTileStateStore
+
+    private var listenScope: CoroutineScope? = null
+    private val instanceId = Integer.toHexString(System.identityHashCode(this))
+
+    override fun onCreate() {
+        super.onCreate()
+        log(TAG, VERBOSE) { "onCreate(instance=$instanceId, sinceDestroy=${elapsedSinceLastDestroy()})" }
+    }
+
+    override fun onTileAdded() {
+        log(TAG, VERBOSE) { "onTileAdded(instance=$instanceId)" }
+        // Render a static placeholder so we never block SystemUI's bind path on a
+        // first-emission DataStore/Billing read. onStartListening will fill in real state.
+        renderTile(AncTileState.Connecting)
+    }
+
+    override fun onStartListening() {
+        log(TAG, VERBOSE) { "onStartListening(instance=$instanceId, sinceDestroy=${elapsedSinceLastDestroy()})" }
+        listenScope?.cancel()
+        val scope = CoroutineScope(SupervisorJob() + dispatcherProvider.Default)
+        listenScope = scope
+        scope.launch {
+            stateStore.state.throttleLatest(250).collect { state ->
+                log(TAG, VERBOSE) { "collector: state=$state" }
+                withContext(dispatcherProvider.Main) { renderTile(state) }
+            }
+        }
+    }
+
+    override fun onStopListening() {
+        log(TAG, VERBOSE) { "onStopListening(instance=$instanceId)" }
+        listenScope?.cancel()
+        listenScope = null
+    }
+
+    override fun onDestroy() {
+        val now = SystemClock.elapsedRealtime()
+        log(TAG, VERBOSE) { "onDestroy(instance=$instanceId)" }
+        lastDestroyAt = now
+        listenScope?.cancel()
+        super.onDestroy()
+    }
+
+    override fun onClick() {
+        log(TAG, VERBOSE) { "onClick(instance=$instanceId, sinceDestroy=${elapsedSinceLastDestroy()}) received tap" }
+        val state = stateStore.currentState()
+        log(TAG, VERBOSE) {
+            "onClick: resolved from state store=$state"
+        }
+        dispatchClick(state)
+    }
+
+    private fun dispatchClick(state: AncTileState) {
+        log(TAG, VERBOSE) { "dispatchClick($state)" }
+        when (state) {
+            AncTileState.NotPro,
+            AncTileState.PermissionRequired -> openMainActivityWithUpgrade()
+            is AncTileState.Active -> sendNextMode(state)
+            AncTileState.BluetoothOff,
+            AncTileState.NoDevice,
+            AncTileState.NoAncSupport,
+            AncTileState.NotConnected,
+            AncTileState.Connecting -> {
+                // Tile state is STATE_UNAVAILABLE; system shouldn't deliver clicks here,
+                // but defensively no-op so we don't crash on unexpected delivery.
+            }
+        }
+    }
+
+    private fun sendNextMode(state: AncTileState.Active) {
+        val nextMode = pickNextMode(state.visible, state.current, state.pending)
+        log(TAG, VERBOSE) {
+            "sendNextMode: visible=${state.visible} current=${state.current} pending=${state.pending} -> next=$nextMode"
+        }
+        if (nextMode == null || nextMode == (state.pending ?: state.current)) {
+            log(TAG, VERBOSE) { "sendNextMode: no advance possible (visible=${state.visible})" }
+            return
+        }
+        val address: BluetoothAddress = state.deviceAddress ?: run {
+            log(TAG, WARN) { "sendNextMode: state has no device address" }
+            return
+        }
+
+        sendCoordinator.scheduleSetAncMode(address, nextMode, 1.seconds)
+
+        val optimisticState = state.copy(pending = nextMode)
+        renderTile(optimisticState)
+    }
+
+    private fun openMainActivityWithUpgrade() {
+        val intent = Intent(this, MainActivity::class.java).apply {
+            flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_SINGLE_TOP
+            putExtra(MainActivity.EXTRA_NAVIGATE_TO_UPGRADE, true)
+        }
+        if (hasApiLevel(34)) {
+            val pendingIntent = PendingIntent.getActivity(
+                this,
+                0,
+                intent,
+                PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT,
+            )
+            startActivityAndCollapse(pendingIntent)
+        } else {
+            @Suppress("DEPRECATION", "StartActivityAndCollapseDeprecated")
+            startActivityAndCollapse(intent)
+        }
+    }
+
+    private fun renderTile(state: AncTileState) {
+        val tile = qsTile ?: run {
+            log(TAG, VERBOSE) { "renderTile: skipped, qsTile is null (state=$state)" }
+            return
+        }
+        log(TAG, VERBOSE) { "renderTile: $state" }
+        val baseLabel = getString(R.string.tile_anc_label)
+
+        val (subtitle, iconRes, tileState) = when (state) {
+            AncTileState.NotPro -> Triple(
+                getString(R.string.common_upgrade_required_label),
+                R.drawable.ic_anc_off,
+                Tile.STATE_INACTIVE,
+            )
+            AncTileState.PermissionRequired -> Triple(
+                getString(R.string.tile_anc_subtitle_permission_required),
+                R.drawable.ic_anc_off,
+                Tile.STATE_INACTIVE,
+            )
+            AncTileState.BluetoothOff -> Triple(
+                getString(R.string.tile_anc_subtitle_bluetooth_off),
+                R.drawable.ic_anc_off,
+                Tile.STATE_UNAVAILABLE,
+            )
+            AncTileState.NoDevice -> Triple(
+                getString(R.string.tile_anc_subtitle_no_device),
+                R.drawable.ic_anc_off,
+                Tile.STATE_UNAVAILABLE,
+            )
+            AncTileState.NoAncSupport -> Triple(
+                getString(R.string.tile_anc_subtitle_no_anc_support),
+                R.drawable.ic_anc_off,
+                Tile.STATE_UNAVAILABLE,
+            )
+            AncTileState.NotConnected -> Triple(
+                getString(R.string.anc_widget_aap_not_connected_label),
+                R.drawable.ic_anc_off,
+                Tile.STATE_UNAVAILABLE,
+            )
+            AncTileState.Connecting -> Triple(
+                getString(R.string.anc_widget_aap_connecting_label),
+                R.drawable.ic_anc_off,
+                Tile.STATE_UNAVAILABLE,
+            )
+            is AncTileState.Active -> {
+                val displayMode = state.pending?.takeIf { it in state.visible } ?: state.current
+                Triple(
+                    displayMode.shortLabel(this),
+                    displayMode.iconDrawableRes(),
+                    Tile.STATE_ACTIVE,
+                )
+            }
+        }
+
+        tile.icon = Icon.createWithResource(this, iconRes)
+        tile.state = tileState
+        if (hasApiLevel(29)) {
+            tile.label = baseLabel
+            tile.subtitle = subtitle
+        } else {
+            // Pre-API 29 tiles can't show a subtitle; fold it into the label.
+            tile.label = "$baseLabel · $subtitle"
+        }
+        if (hasApiLevel(30)) {
+            tile.stateDescription = subtitle
+        }
+        tile.updateTile()
+    }
+
+    companion object {
+        private val TAG = logTag("Tile", "Anc")
+        @Volatile private var lastDestroyAt: Long? = null
+
+        private fun elapsedSinceLastDestroy(): String {
+            val destroyedAt = lastDestroyAt ?: return "n/a"
+            return "${SystemClock.elapsedRealtime() - destroyedAt}ms"
+        }
+    }
+}

app/src/main/java/eu/darken/capod/main/ui/tile/AncTileStateMapper.kt

@@ -0,0 +1,88 @@
+package eu.darken.capod.main.ui.tile
+
+import eu.darken.capod.common.bluetooth.BluetoothAddress
+import eu.darken.capod.common.permissions.Permission
+import eu.darken.capod.monitor.core.PodDevice
+import eu.darken.capod.monitor.core.visibleAncModes
+import eu.darken.capod.pods.core.apple.aap.protocol.AapSetting
+
+/**
+ * Pure data → data mapper. Decides which [AncTileState] to render given a snapshot
+ * of inputs. Mirrors [AncWidgetRenderStateMapper]'s precedence so the two surfaces
+ * stay in sync, while remaining unit-testable without Android resources.
+ *
+ * Note: cached/offline-tier devices land in [AncTileState.NotConnected] (not
+ * [AncTileState.Connecting]) — without an active AAP session, "Connecting…" would
+ * be misleading because nothing is in progress.
+ */
+object AncTileStateMapper {
+
+    fun map(
+        device: PodDevice?,
+        isPro: Boolean,
+        isBluetoothEnabled: Boolean,
+        missingPermissions: Set<Permission>,
+    ): AncTileState {
+        if (!isPro) return AncTileState.NotPro
+        if (missingPermissions.any { it.isTileBlocking }) return AncTileState.PermissionRequired
+        if (!isBluetoothEnabled) return AncTileState.BluetoothOff
+        if (device == null) return AncTileState.NoDevice
+        if (!device.hasAncControl) return AncTileState.NoAncSupport
+        if (!device.isAapConnected) return AncTileState.NotConnected
+        if (!device.isAapReady) return AncTileState.Connecting
+
+        val ancMode = device.ancMode ?: return AncTileState.Connecting
+        val visible = device.visibleAncModes
+        if (visible.isEmpty()) return AncTileState.Connecting
+
+        return AncTileState.Active(
+            current = ancMode.current,
+            pending = device.pendingAncMode,
+            visible = visible,
+            deviceLabel = device.label,
+            deviceAddress = device.address,
+        )
+    }
+}
+
+/**
+ * A permission whose absence prevents the tile from working. Scan-blocking permissions
+ * gate BLE; [Permission.BLUETOOTH_CONNECT] gates the AAP L2CAP socket — without either,
+ * the tile cannot do useful work.
+ */
+private val Permission.isTileBlocking: Boolean
+    get() = isScanBlocking || this == Permission.BLUETOOTH_CONNECT
+
+sealed interface AncTileState {
+    data object NotPro : AncTileState
+    data object PermissionRequired : AncTileState
+    data object BluetoothOff : AncTileState
+    data object NoDevice : AncTileState
+    data object NoAncSupport : AncTileState
+    data object NotConnected : AncTileState
+    data object Connecting : AncTileState
+    data class Active(
+        val current: AapSetting.AncMode.Value,
+        val pending: AapSetting.AncMode.Value?,
+        val visible: List<AapSetting.AncMode.Value>,
+        val deviceLabel: String?,
+        val deviceAddress: BluetoothAddress?,
+    ) : AncTileState
+}
+
+/**
+ * Cycles to the next mode in [visible]. Anchors on [pending] when it's still in
+ * [visible] so rapid taps walk forward through the list rather than oscillate against
+ * the device-echoed [current]. A [pending] that has been filtered out (e.g. user toggled
+ * Allow Off mid-cycle) falls through to [current].
+ */
+internal fun pickNextMode(
+    visible: List<AapSetting.AncMode.Value>,
+    current: AapSetting.AncMode.Value?,
+    pending: AapSetting.AncMode.Value?,
+): AapSetting.AncMode.Value? {
+    if (visible.isEmpty()) return null
+    val anchor = pending?.takeIf { it in visible } ?: current ?: return visible.first()
+    val idx = visible.indexOf(anchor)
+    return if (idx < 0) visible.first() else visible[(idx + 1) % visible.size]
+}

app/src/main/java/eu/darken/capod/main/ui/tile/AncTileStateStore.kt

@@ -0,0 +1,85 @@
+package eu.darken.capod.main.ui.tile
+
+import eu.darken.capod.common.bluetooth.BluetoothManager2
+import eu.darken.capod.common.coroutine.AppScope
+import eu.darken.capod.common.flow.combine
+import eu.darken.capod.common.upgrade.UpgradeRepo
+import eu.darken.capod.main.core.PermissionTool
+import eu.darken.capod.monitor.core.DeviceMonitor
+import eu.darken.capod.monitor.core.primaryByTier
+import eu.darken.capod.profiles.core.DeviceProfilesRepo
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.stateIn
+import javax.inject.Inject
+import javax.inject.Singleton
+import kotlinx.coroutines.flow.combine as combineFlows
+
+/**
+ * Process-scoped state holder for the ANC QS tile.
+ *
+ * TileService instances are short-lived and can disappear between taps. Keeping
+ * the latest state here lets a recreated service resolve clicks synchronously
+ * while the app process is alive. A cold or hydrating process intentionally
+ * reports [AncTileState.Connecting] so the tile UI is honest about not being
+ * ready for input yet.
+ */
+@Singleton
+class AncTileStateStore @Inject constructor(
+    @AppScope private val appScope: CoroutineScope,
+    deviceMonitor: DeviceMonitor,
+    profilesRepo: DeviceProfilesRepo,
+    upgradeRepo: UpgradeRepo,
+    bluetoothManager: BluetoothManager2,
+    permissionTool: PermissionTool,
+    private val sendCoordinator: AncTileSendCoordinator,
+) {
+
+    private val rawState: StateFlow<AncTileState> = combine(
+        deviceMonitor.devices,
+        profilesRepo.profiles,
+        upgradeRepo.upgradeInfo.map { it.isPro },
+        bluetoothManager.isBluetoothEnabled,
+        permissionTool.missingPermissions,
+    ) { devices, profiles, isPro, isBluetoothEnabled, missingPermissions ->
+        val profileOrder = profiles.mapIndexed { idx, p -> p.id to idx }.toMap()
+        val device = devices.primaryByTier(profileOrder)
+        AncTileStateMapper.map(
+            device = device,
+            isPro = isPro,
+            isBluetoothEnabled = isBluetoothEnabled,
+            missingPermissions = missingPermissions,
+        )
+    }
+        .distinctUntilChanged()
+        .stateIn(
+            scope = appScope,
+            started = SharingStarted.Eagerly,
+            initialValue = AncTileState.Connecting,
+        )
+
+    init {
+        appScope.launch {
+            rawState.collect { state -> sendCoordinator.acknowledgeDeviceState(state) }
+        }
+    }
+
+    val state: StateFlow<AncTileState> = combineFlows(
+        rawState,
+        sendCoordinator.pendingModes,
+    ) { rawState, _ ->
+        sendCoordinator.applyPendingTarget(rawState)
+    }
+        .distinctUntilChanged()
+        .stateIn(
+            scope = appScope,
+            started = SharingStarted.Eagerly,
+            initialValue = AncTileState.Connecting,
+        )
+
+    fun currentState(): AncTileState = sendCoordinator.applyPendingTarget(rawState.value)
+}

app/src/main/java/eu/darken/capod/main/ui/widget/AncWidgetRenderStateMapper.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.main.ui.widget
 
 import android.content.Context
 import eu.darken.capod.R
+import eu.darken.capod.main.ui.components.iconDrawableRes
 import eu.darken.capod.main.ui.components.shortLabel
 import eu.darken.capod.monitor.core.PodDevice
 import eu.darken.capod.monitor.core.visibleAncModes
@@ -121,10 +122,3 @@ object AncWidgetRenderStateMapper {
         }
     }
 }
-
-private fun AapSetting.AncMode.Value.iconDrawableRes(): Int = when (this) {
-    AapSetting.AncMode.Value.OFF -> R.drawable.ic_anc_off
-    AapSetting.AncMode.Value.ON -> R.drawable.ic_anc_on
-    AapSetting.AncMode.Value.TRANSPARENCY -> R.drawable.ic_anc_transparency
-    AapSetting.AncMode.Value.ADAPTIVE -> R.drawable.ic_anc_adaptive
-}

app/src/main/java/eu/darken/capod/monitor/core/PodDeviceTier.kt

@@ -0,0 +1,26 @@
+package eu.darken.capod.monitor.core
+
+/**
+ * Connection tier rank used to sort devices by user-perceived "primary":
+ * lower rank = higher priority. System-connected devices come first, then
+ * any live device (BLE or AAP), then profiled-but-offline.
+ *
+ * Distinct from [DeviceMonitor.primaryDevice] which is intentionally
+ * non-tier-ranked for reaction flows that want "any profiled device".
+ */
+fun PodDevice.tierRank(): Int = when {
+    isSystemConnected -> 0
+    isLive -> 1
+    else -> 2
+}
+
+/**
+ * Picks the user-perceived primary profiled device: lowest [tierRank], with
+ * the user's profile-list order as the tiebreaker.
+ */
+fun List<PodDevice>.primaryByTier(profileOrder: Map<String, Int>): PodDevice? =
+    filter { it.profileId != null }
+        .minWithOrNull(
+            compareBy<PodDevice> { it.tierRank() }
+                .thenBy { profileOrder[it.profileId] ?: Int.MAX_VALUE }
+        )

app/src/main/res/values/strings.xml

@@ -158,6 +158,11 @@
     <string name="anc_widget_no_anc_support_label">This device does not support noise control</string>
     <string name="anc_widget_aap_not_connected_label">Not connected</string>
     <string name="anc_widget_aap_connecting_label">Connecting…</string>
+    <string name="tile_anc_label">Noise Control</string>
+    <string name="tile_anc_subtitle_permission_required">Permission required</string>
+    <string name="tile_anc_subtitle_no_device">No device</string>
+    <string name="tile_anc_subtitle_no_anc_support">No noise control</string>
+    <string name="tile_anc_subtitle_bluetooth_off">Bluetooth off</string>
     <string name="widget_config_screen_title">Widget Configuration</string>
     <string name="widget_configuration_title">Select Device</string>
     <string name="widget_configuration_description">Choose which device profile this widget should display.</string>