diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/keyguard/shared/model/KeyguardQuickAffordanceSlots.kt b/packages/SystemUI/shared/src/com/android/systemui/shared/keyguard/shared/model/KeyguardQuickAffordanceSlots.kt
new file mode 100644
index 0000000..2dc7a28
--- /dev/null
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/keyguard/shared/model/KeyguardQuickAffordanceSlots.kt
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package com.android.systemui.shared.keyguard.shared.model
+
+/**
+ * Collection of all supported "slots", placements where keyguard quick affordances can appear on
+ * the lock screen.
+ */
+object KeyguardQuickAffordanceSlots {
+    const val SLOT_ID_BOTTOM_START = "bottom_start"
+    const val SLOT_ID_BOTTOM_END = "bottom_end"
+}
diff --git a/packages/SystemUI/src/com/android/systemui/flags/Flags.kt b/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
index 2a94e52..e6e0e52 100644
--- a/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
+++ b/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
@@ -129,6 +129,14 @@
 
     @JvmField val NEW_UDFPS_OVERLAY = UnreleasedFlag(215)
 
+    /**
+     * Whether to enable the code powering customizable lock screen quick affordances.
+     *
+     * Note that this flag does not enable individual implementations of quick affordances like the
+     * new camera quick affordance. Look for individual flags for those.
+     */
+    @JvmField val CUSTOMIZABLE_LOCK_SCREEN_QUICK_AFFORDANCES = UnreleasedFlag(216, teamfood = false)
+
     // 300 - power menu
     // TODO(b/254512600): Tracking Bug
     @JvmField val POWER_MENU_LITE = ReleasedFlag(300)
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/dagger/KeyguardModule.java b/packages/SystemUI/src/com/android/systemui/keyguard/dagger/KeyguardModule.java
index 56a1f1a..f08463b 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/dagger/KeyguardModule.java
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/dagger/KeyguardModule.java
@@ -42,6 +42,7 @@
 import com.android.systemui.keyguard.DismissCallbackRegistry;
 import com.android.systemui.keyguard.KeyguardUnlockAnimationController;
 import com.android.systemui.keyguard.KeyguardViewMediator;
+import com.android.systemui.keyguard.data.quickaffordance.KeyguardDataQuickAffordanceModule;
 import com.android.systemui.keyguard.data.repository.KeyguardRepositoryModule;
 import com.android.systemui.keyguard.domain.interactor.StartKeyguardTransitionModule;
 import com.android.systemui.keyguard.domain.quickaffordance.KeyguardQuickAffordanceModule;
@@ -71,6 +72,7 @@
         KeyguardUserSwitcherComponent.class},
         includes = {
             FalsingModule.class,
+            KeyguardDataQuickAffordanceModule.class,
             KeyguardQuickAffordanceModule.class,
             KeyguardRepositoryModule.class,
             StartKeyguardTransitionModule.class,
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/HomeControlsKeyguardQuickAffordanceConfig.kt b/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/HomeControlsKeyguardQuickAffordanceConfig.kt
index c600e13..d6f521c 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/HomeControlsKeyguardQuickAffordanceConfig.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/HomeControlsKeyguardQuickAffordanceConfig.kt
@@ -53,6 +53,10 @@
 
     override val key: String = BuiltInKeyguardQuickAffordanceKeys.HOME_CONTROLS
 
+    override val pickerName: String by lazy { context.getString(component.getTileTitleId()) }
+
+    override val pickerIconResourceId: Int by lazy { component.getTileImageId() }
+
     override val lockScreenState: Flow<KeyguardQuickAffordanceConfig.LockScreenState> =
         component.canShowWhileLockedSetting.flatMapLatest { canShowWhileLocked ->
             if (canShowWhileLocked) {
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/KeyguardDataQuickAffordanceModule.kt b/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/KeyguardDataQuickAffordanceModule.kt
new file mode 100644
index 0000000..bea9363
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/KeyguardDataQuickAffordanceModule.kt
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package com.android.systemui.keyguard.data.quickaffordance
+
+import dagger.Module
+import dagger.Provides
+import dagger.multibindings.ElementsIntoSet
+
+@Module
+object KeyguardDataQuickAffordanceModule {
+    @Provides
+    @ElementsIntoSet
+    fun quickAffordanceConfigs(
+        home: HomeControlsKeyguardQuickAffordanceConfig,
+        quickAccessWallet: QuickAccessWalletKeyguardQuickAffordanceConfig,
+        qrCodeScanner: QrCodeScannerKeyguardQuickAffordanceConfig,
+    ): Set<KeyguardQuickAffordanceConfig> {
+        return setOf(
+            home,
+            quickAccessWallet,
+            qrCodeScanner,
+        )
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/KeyguardQuickAffordanceConfig.kt b/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/KeyguardQuickAffordanceConfig.kt
index 0a8090b..fd40d1d 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/KeyguardQuickAffordanceConfig.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/KeyguardQuickAffordanceConfig.kt
@@ -29,6 +29,10 @@
     /** Unique identifier for this quick affordance. It must be globally unique. */
     val key: String
 
+    val pickerName: String
+
+    val pickerIconResourceId: Int
+
     /**
      * The ever-changing state of the affordance.
      *
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/KeyguardQuickAffordanceSelectionManager.kt b/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/KeyguardQuickAffordanceSelectionManager.kt
new file mode 100644
index 0000000..9c9354f
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/KeyguardQuickAffordanceSelectionManager.kt
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package com.android.systemui.keyguard.data.quickaffordance
+
+import com.android.systemui.dagger.SysUISingleton
+import javax.inject.Inject
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+
+/**
+ * Manages and provides access to the current "selections" of keyguard quick affordances, answering
+ * the question "which affordances should the keyguard show?".
+ */
+@SysUISingleton
+class KeyguardQuickAffordanceSelectionManager @Inject constructor() {
+
+    // TODO(b/254858695): implement a persistence layer (database).
+    private val _selections = MutableStateFlow<Map<String, List<String>>>(emptyMap())
+
+    /** IDs of affordances to show, indexed by slot ID, and sorted in descending priority order. */
+    val selections: Flow<Map<String, List<String>>> = _selections.asStateFlow()
+
+    /**
+     * Returns a snapshot of the IDs of affordances to show, indexed by slot ID, and sorted in
+     * descending priority order.
+     */
+    suspend fun getSelections(): Map<String, List<String>> {
+        return _selections.value
+    }
+
+    /**
+     * Updates the IDs of affordances to show at the slot with the given ID. The order of affordance
+     * IDs should be descending priority order.
+     */
+    suspend fun setSelections(
+        slotId: String,
+        affordanceIds: List<String>,
+    ) {
+        // Must make a copy of the map and update it, otherwise, the MutableStateFlow won't emit
+        // when we set its value to the same instance of the original map, even if we change the
+        // map by updating the value of one of its keys.
+        val copy = _selections.value.toMutableMap()
+        copy[slotId] = affordanceIds
+        _selections.value = copy
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/QrCodeScannerKeyguardQuickAffordanceConfig.kt b/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/QrCodeScannerKeyguardQuickAffordanceConfig.kt
index d620b2a..11f72ff 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/QrCodeScannerKeyguardQuickAffordanceConfig.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/QrCodeScannerKeyguardQuickAffordanceConfig.kt
@@ -17,6 +17,7 @@
 
 package com.android.systemui.keyguard.data.quickaffordance
 
+import android.content.Context
 import com.android.systemui.R
 import com.android.systemui.animation.Expandable
 import com.android.systemui.common.coroutine.ChannelExt.trySendWithFailureLogging
@@ -24,6 +25,7 @@
 import com.android.systemui.common.shared.model.ContentDescription
 import com.android.systemui.common.shared.model.Icon
 import com.android.systemui.dagger.SysUISingleton
+import com.android.systemui.dagger.qualifiers.Application
 import com.android.systemui.qrcodescanner.controller.QRCodeScannerController
 import javax.inject.Inject
 import kotlinx.coroutines.channels.awaitClose
@@ -34,11 +36,16 @@
 class QrCodeScannerKeyguardQuickAffordanceConfig
 @Inject
 constructor(
+    @Application context: Context,
     private val controller: QRCodeScannerController,
 ) : KeyguardQuickAffordanceConfig {
 
     override val key: String = BuiltInKeyguardQuickAffordanceKeys.QR_CODE_SCANNER
 
+    override val pickerName = context.getString(R.string.qr_code_scanner_title)
+
+    override val pickerIconResourceId = R.drawable.ic_qr_code_scanner
+
     override val lockScreenState: Flow<KeyguardQuickAffordanceConfig.LockScreenState> =
         conflatedCallbackFlow {
             val callback =
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/QuickAccessWalletKeyguardQuickAffordanceConfig.kt b/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/QuickAccessWalletKeyguardQuickAffordanceConfig.kt
index be57a32..303e6a1 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/QuickAccessWalletKeyguardQuickAffordanceConfig.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/data/quickaffordance/QuickAccessWalletKeyguardQuickAffordanceConfig.kt
@@ -17,6 +17,7 @@
 
 package com.android.systemui.keyguard.data.quickaffordance
 
+import android.content.Context
 import android.graphics.drawable.Drawable
 import android.service.quickaccesswallet.GetWalletCardsError
 import android.service.quickaccesswallet.GetWalletCardsResponse
@@ -29,6 +30,7 @@
 import com.android.systemui.common.shared.model.ContentDescription
 import com.android.systemui.common.shared.model.Icon
 import com.android.systemui.dagger.SysUISingleton
+import com.android.systemui.dagger.qualifiers.Application
 import com.android.systemui.plugins.ActivityStarter
 import com.android.systemui.wallet.controller.QuickAccessWalletController
 import javax.inject.Inject
@@ -40,12 +42,17 @@
 class QuickAccessWalletKeyguardQuickAffordanceConfig
 @Inject
 constructor(
+    @Application context: Context,
     private val walletController: QuickAccessWalletController,
     private val activityStarter: ActivityStarter,
 ) : KeyguardQuickAffordanceConfig {
 
     override val key: String = BuiltInKeyguardQuickAffordanceKeys.QUICK_ACCESS_WALLET
 
+    override val pickerName = context.getString(R.string.accessibility_wallet_button)
+
+    override val pickerIconResourceId = R.drawable.ic_wallet_lockscreen
+
     override val lockScreenState: Flow<KeyguardQuickAffordanceConfig.LockScreenState> =
         conflatedCallbackFlow {
             val callback =
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/data/repository/KeyguardQuickAffordanceRepository.kt b/packages/SystemUI/src/com/android/systemui/keyguard/data/repository/KeyguardQuickAffordanceRepository.kt
new file mode 100644
index 0000000..95f614f
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/data/repository/KeyguardQuickAffordanceRepository.kt
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package com.android.systemui.keyguard.data.repository
+
+import com.android.systemui.dagger.SysUISingleton
+import com.android.systemui.dagger.qualifiers.Application
+import com.android.systemui.dagger.qualifiers.Background
+import com.android.systemui.keyguard.data.quickaffordance.KeyguardQuickAffordanceConfig
+import com.android.systemui.keyguard.data.quickaffordance.KeyguardQuickAffordanceSelectionManager
+import com.android.systemui.keyguard.shared.model.KeyguardQuickAffordancePickerRepresentation
+import com.android.systemui.keyguard.shared.model.KeyguardSlotPickerRepresentation
+import com.android.systemui.shared.keyguard.shared.model.KeyguardQuickAffordanceSlots
+import javax.inject.Inject
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.launch
+
+/** Abstracts access to application state related to keyguard quick affordances. */
+@SysUISingleton
+class KeyguardQuickAffordanceRepository
+@Inject
+constructor(
+    @Application private val scope: CoroutineScope,
+    @Background private val backgroundDispatcher: CoroutineDispatcher,
+    private val selectionManager: KeyguardQuickAffordanceSelectionManager,
+    private val configs: Set<@JvmSuppressWildcards KeyguardQuickAffordanceConfig>,
+) {
+    /**
+     * List of [KeyguardQuickAffordanceConfig] instances of the affordances at the slot with the
+     * given ID. The configs are sorted in descending priority order.
+     */
+    val selections: StateFlow<Map<String, List<KeyguardQuickAffordanceConfig>>> =
+        selectionManager.selections
+            .map { selectionsBySlotId ->
+                selectionsBySlotId.mapValues { (_, selections) ->
+                    configs.filter { selections.contains(it.key) }
+                }
+            }
+            .stateIn(
+                scope = scope,
+                started = SharingStarted.Eagerly,
+                initialValue = emptyMap(),
+            )
+
+    /**
+     * Returns a snapshot of the [KeyguardQuickAffordanceConfig] instances of the affordances at the
+     * slot with the given ID. The configs are sorted in descending priority order.
+     */
+    suspend fun getSelections(slotId: String): List<KeyguardQuickAffordanceConfig> {
+        val selections = selectionManager.getSelections().getOrDefault(slotId, emptyList())
+        return configs.filter { selections.contains(it.key) }
+    }
+
+    /**
+     * Returns a snapshot of the IDs of the selected affordances, indexed by slot ID. The configs
+     * are sorted in descending priority order.
+     */
+    suspend fun getSelections(): Map<String, List<String>> {
+        return selectionManager.getSelections()
+    }
+
+    /**
+     * Updates the IDs of affordances to show at the slot with the given ID. The order of affordance
+     * IDs should be descending priority order.
+     */
+    fun setSelections(
+        slotId: String,
+        affordanceIds: List<String>,
+    ) {
+        scope.launch(backgroundDispatcher) {
+            selectionManager.setSelections(
+                slotId = slotId,
+                affordanceIds = affordanceIds,
+            )
+        }
+    }
+
+    /**
+     * Returns the list of representation objects for all known affordances, regardless of what is
+     * selected. This is useful for building experiences like the picker/selector or user settings
+     * so the user can see everything that can be selected in a menu.
+     */
+    fun getAffordancePickerRepresentations(): List<KeyguardQuickAffordancePickerRepresentation> {
+        return configs.map { config ->
+            KeyguardQuickAffordancePickerRepresentation(
+                id = config.key,
+                name = config.pickerName,
+                iconResourceId = config.pickerIconResourceId,
+            )
+        }
+    }
+
+    /**
+     * Returns the list of representation objects for all available slots on the keyguard. This is
+     * useful for building experiences like the picker/selector or user settings so the user can see
+     * each slot and select which affordance(s) is/are installed in each slot on the keyguard.
+     */
+    fun getSlotPickerRepresentations(): List<KeyguardSlotPickerRepresentation> {
+        // TODO(b/256195304): source these from a config XML file.
+        return listOf(
+            KeyguardSlotPickerRepresentation(
+                id = KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START,
+            ),
+            KeyguardSlotPickerRepresentation(
+                id = KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END,
+            ),
+        )
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/domain/interactor/KeyguardQuickAffordanceInteractor.kt b/packages/SystemUI/src/com/android/systemui/keyguard/domain/interactor/KeyguardQuickAffordanceInteractor.kt
index 13d97aa..92caa89 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/domain/interactor/KeyguardQuickAffordanceInteractor.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/domain/interactor/KeyguardQuickAffordanceInteractor.kt
@@ -18,19 +18,30 @@
 package com.android.systemui.keyguard.domain.interactor
 
 import android.content.Intent
+import android.util.Log
 import com.android.internal.widget.LockPatternUtils
 import com.android.systemui.animation.Expandable
 import com.android.systemui.dagger.SysUISingleton
+import com.android.systemui.flags.FeatureFlags
+import com.android.systemui.flags.Flags
 import com.android.systemui.keyguard.data.quickaffordance.KeyguardQuickAffordanceConfig
+import com.android.systemui.keyguard.data.repository.KeyguardQuickAffordanceRepository
 import com.android.systemui.keyguard.domain.model.KeyguardQuickAffordanceModel
 import com.android.systemui.keyguard.domain.quickaffordance.KeyguardQuickAffordanceRegistry
+import com.android.systemui.keyguard.shared.model.KeyguardQuickAffordancePickerRepresentation
+import com.android.systemui.keyguard.shared.model.KeyguardSlotPickerRepresentation
 import com.android.systemui.keyguard.shared.quickaffordance.KeyguardQuickAffordancePosition
 import com.android.systemui.plugins.ActivityStarter
 import com.android.systemui.settings.UserTracker
+import com.android.systemui.shared.keyguard.shared.model.KeyguardQuickAffordanceSlots
 import com.android.systemui.statusbar.policy.KeyguardStateController
+import dagger.Lazy
 import javax.inject.Inject
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flowOf
+import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.onStart
 
 @SysUISingleton
@@ -43,7 +54,12 @@
     private val keyguardStateController: KeyguardStateController,
     private val userTracker: UserTracker,
     private val activityStarter: ActivityStarter,
+    private val featureFlags: FeatureFlags,
+    private val repository: Lazy<KeyguardQuickAffordanceRepository>,
 ) {
+    private val isUsingRepository: Boolean
+        get() = featureFlags.isEnabled(Flags.CUSTOMIZABLE_LOCK_SCREEN_QUICK_AFFORDANCES)
+
     /** Returns an observable for the quick affordance at the given position. */
     fun quickAffordance(
         position: KeyguardQuickAffordancePosition
@@ -72,7 +88,19 @@
         configKey: String,
         expandable: Expandable?,
     ) {
-        @Suppress("UNCHECKED_CAST") val config = registry.get(configKey)
+        @Suppress("UNCHECKED_CAST")
+        val config =
+            if (isUsingRepository) {
+                val (slotId, decodedConfigKey) = configKey.decode()
+                repository.get().selections.value[slotId]?.find { it.key == decodedConfigKey }
+            } else {
+                registry.get(configKey)
+            }
+        if (config == null) {
+            Log.e(TAG, "Affordance config with key of \"$configKey\" not found!")
+            return
+        }
+
         when (val result = config.onTriggered(expandable)) {
             is KeyguardQuickAffordanceConfig.OnTriggeredResult.StartActivity ->
                 launchQuickAffordance(
@@ -84,28 +112,138 @@
         }
     }
 
+    /**
+     * Selects an affordance with the given ID on the slot with the given ID.
+     *
+     * @return `true` if the affordance was selected successfully; `false` otherwise.
+     */
+    suspend fun select(slotId: String, affordanceId: String): Boolean {
+        check(isUsingRepository)
+
+        val slots = repository.get().getSlotPickerRepresentations()
+        val slot = slots.find { it.id == slotId } ?: return false
+        val selections =
+            repository.get().getSelections().getOrDefault(slotId, emptyList()).toMutableList()
+        val alreadySelected = selections.remove(affordanceId)
+        if (!alreadySelected) {
+            while (selections.size > 0 && selections.size >= slot.maxSelectedAffordances) {
+                selections.removeAt(0)
+            }
+        }
+
+        selections.add(affordanceId)
+
+        repository
+            .get()
+            .setSelections(
+                slotId = slotId,
+                affordanceIds = selections,
+            )
+
+        return true
+    }
+
+    /**
+     * Unselects one or all affordances from the slot with the given ID.
+     *
+     * @param slotId The ID of the slot.
+     * @param affordanceId The ID of the affordance to remove; if `null`, removes all affordances
+     * from the slot.
+     * @return `true` if the affordance was successfully removed; `false` otherwise (for example, if
+     * the affordance was not on the slot to begin with).
+     */
+    suspend fun unselect(slotId: String, affordanceId: String?): Boolean {
+        check(isUsingRepository)
+
+        val slots = repository.get().getSlotPickerRepresentations()
+        if (slots.find { it.id == slotId } == null) {
+            return false
+        }
+
+        if (affordanceId.isNullOrEmpty()) {
+            return if (
+                repository.get().getSelections().getOrDefault(slotId, emptyList()).isEmpty()
+            ) {
+                false
+            } else {
+                repository.get().setSelections(slotId = slotId, affordanceIds = emptyList())
+                true
+            }
+        }
+
+        val selections =
+            repository.get().getSelections().getOrDefault(slotId, emptyList()).toMutableList()
+        return if (selections.remove(affordanceId)) {
+            repository
+                .get()
+                .setSelections(
+                    slotId = slotId,
+                    affordanceIds = selections,
+                )
+            true
+        } else {
+            false
+        }
+    }
+
+    /** Returns affordance IDs indexed by slot ID, for all known slots. */
+    suspend fun getSelections(): Map<String, List<String>> {
+        check(isUsingRepository)
+
+        val selections = repository.get().getSelections()
+        return repository.get().getSlotPickerRepresentations().associate { slotRepresentation ->
+            slotRepresentation.id to (selections[slotRepresentation.id] ?: emptyList())
+        }
+    }
+
     private fun quickAffordanceInternal(
         position: KeyguardQuickAffordancePosition
     ): Flow<KeyguardQuickAffordanceModel> {
-        val configs = registry.getAll(position)
+        return if (isUsingRepository) {
+            repository
+                .get()
+                .selections
+                .map { it[position.toSlotId()] ?: emptyList() }
+                .flatMapLatest { configs -> combinedConfigs(position, configs) }
+        } else {
+            combinedConfigs(position, registry.getAll(position))
+        }
+    }
+
+    private fun combinedConfigs(
+        position: KeyguardQuickAffordancePosition,
+        configs: List<KeyguardQuickAffordanceConfig>,
+    ): Flow<KeyguardQuickAffordanceModel> {
+        if (configs.isEmpty()) {
+            return flowOf(KeyguardQuickAffordanceModel.Hidden)
+        }
+
         return combine(
             configs.map { config ->
-                // We emit an initial "Hidden" value to make sure that there's always an initial
-                // value and avoid subtle bugs where the downstream isn't receiving any values
-                // because one config implementation is not emitting an initial value. For example,
-                // see b/244296596.
+                // We emit an initial "Hidden" value to make sure that there's always an
+                // initial value and avoid subtle bugs where the downstream isn't receiving
+                // any values because one config implementation is not emitting an initial
+                // value. For example, see b/244296596.
                 config.lockScreenState.onStart {
                     emit(KeyguardQuickAffordanceConfig.LockScreenState.Hidden)
                 }
             }
         ) { states ->
             val index =
-                states.indexOfFirst { it is KeyguardQuickAffordanceConfig.LockScreenState.Visible }
+                states.indexOfFirst { state ->
+                    state is KeyguardQuickAffordanceConfig.LockScreenState.Visible
+                }
             if (index != -1) {
                 val visibleState =
                     states[index] as KeyguardQuickAffordanceConfig.LockScreenState.Visible
+                val configKey = configs[index].key
                 KeyguardQuickAffordanceModel.Visible(
-                    configKey = configs[index].key,
+                    configKey =
+                        if (isUsingRepository) {
+                            configKey.encode(position.toSlotId())
+                        } else {
+                            configKey
+                        },
                     icon = visibleState.icon,
                     activationState = visibleState.activationState,
                 )
@@ -145,4 +283,39 @@
             )
         }
     }
+
+    private fun KeyguardQuickAffordancePosition.toSlotId(): String {
+        return when (this) {
+            KeyguardQuickAffordancePosition.BOTTOM_START ->
+                KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START
+            KeyguardQuickAffordancePosition.BOTTOM_END ->
+                KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END
+        }
+    }
+
+    private fun String.encode(slotId: String): String {
+        return "$slotId$DELIMITER$this"
+    }
+
+    private fun String.decode(): Pair<String, String> {
+        val splitUp = this.split(DELIMITER)
+        return Pair(splitUp[0], splitUp[1])
+    }
+
+    fun getAffordancePickerRepresentations(): List<KeyguardQuickAffordancePickerRepresentation> {
+        check(isUsingRepository)
+
+        return repository.get().getAffordancePickerRepresentations()
+    }
+
+    fun getSlotPickerRepresentations(): List<KeyguardSlotPickerRepresentation> {
+        check(isUsingRepository)
+
+        return repository.get().getSlotPickerRepresentations()
+    }
+
+    companion object {
+        private const val TAG = "KeyguardQuickAffordanceInteractor"
+        private const val DELIMITER = "::"
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/shared/model/KeyguardQuickAffordancePickerRepresentation.kt b/packages/SystemUI/src/com/android/systemui/keyguard/shared/model/KeyguardQuickAffordancePickerRepresentation.kt
new file mode 100644
index 0000000..a56bc90
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/shared/model/KeyguardQuickAffordancePickerRepresentation.kt
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package com.android.systemui.keyguard.shared.model
+
+import androidx.annotation.DrawableRes
+
+/**
+ * Representation of a quick affordance for use to build "picker", "selector", or "settings"
+ * experiences.
+ */
+data class KeyguardQuickAffordancePickerRepresentation(
+    val id: String,
+    val name: String,
+    @DrawableRes val iconResourceId: Int,
+)
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/shared/model/KeyguardSlotPickerRepresentation.kt b/packages/SystemUI/src/com/android/systemui/keyguard/shared/model/KeyguardSlotPickerRepresentation.kt
new file mode 100644
index 0000000..86f2756
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/shared/model/KeyguardSlotPickerRepresentation.kt
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package com.android.systemui.keyguard.shared.model
+
+/**
+ * Representation of a quick affordance slot (or position) for use to build "picker", "selector", or
+ * "settings" experiences.
+ */
+data class KeyguardSlotPickerRepresentation(
+    val id: String,
+    /** The maximum number of selected affordances that can be present on this slot. */
+    val maxSelectedAffordances: Int = 1,
+)
diff --git a/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/FakeKeyguardQuickAffordanceConfig.kt b/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/FakeKeyguardQuickAffordanceConfig.kt
index f18acba..0fb181d 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/FakeKeyguardQuickAffordanceConfig.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/FakeKeyguardQuickAffordanceConfig.kt
@@ -23,14 +23,11 @@
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.yield
 
-/**
- * Fake implementation of a quick affordance data source.
- *
- * This class is abstract to force tests to provide extensions of it as the system that references
- * these configs uses each implementation's class type to refer to them.
- */
-abstract class FakeKeyguardQuickAffordanceConfig(
+/** Fake implementation of a quick affordance data source. */
+class FakeKeyguardQuickAffordanceConfig(
     override val key: String,
+    override val pickerName: String = key,
+    override val pickerIconResourceId: Int = 0,
 ) : KeyguardQuickAffordanceConfig {
 
     var onTriggeredResult: OnTriggeredResult = OnTriggeredResult.Handled
diff --git a/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/KeyguardQuickAffordanceSelectionManagerTest.kt b/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/KeyguardQuickAffordanceSelectionManagerTest.kt
new file mode 100644
index 0000000..d2422ad
--- /dev/null
+++ b/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/KeyguardQuickAffordanceSelectionManagerTest.kt
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package com.android.systemui.keyguard.data.quickaffordance
+
+import androidx.test.filters.SmallTest
+import com.android.systemui.SysuiTestCase
+import com.google.common.truth.Truth.assertThat
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.runBlocking
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.junit.runners.JUnit4
+
+@SmallTest
+@RunWith(JUnit4::class)
+class KeyguardQuickAffordanceSelectionManagerTest : SysuiTestCase() {
+
+    private lateinit var underTest: KeyguardQuickAffordanceSelectionManager
+
+    @Before
+    fun setUp() {
+        underTest = KeyguardQuickAffordanceSelectionManager()
+    }
+
+    @Test
+    fun setSelections() =
+        runBlocking(IMMEDIATE) {
+            var affordanceIdsBySlotId: Map<String, List<String>>? = null
+            val job = underTest.selections.onEach { affordanceIdsBySlotId = it }.launchIn(this)
+            val slotId1 = "slot1"
+            val slotId2 = "slot2"
+            val affordanceId1 = "affordance1"
+            val affordanceId2 = "affordance2"
+            val affordanceId3 = "affordance3"
+
+            underTest.setSelections(
+                slotId = slotId1,
+                affordanceIds = listOf(affordanceId1),
+            )
+            assertSelections(
+                affordanceIdsBySlotId,
+                mapOf(
+                    slotId1 to listOf(affordanceId1),
+                ),
+            )
+
+            underTest.setSelections(
+                slotId = slotId2,
+                affordanceIds = listOf(affordanceId2),
+            )
+            assertSelections(
+                affordanceIdsBySlotId,
+                mapOf(
+                    slotId1 to listOf(affordanceId1),
+                    slotId2 to listOf(affordanceId2),
+                )
+            )
+
+            underTest.setSelections(
+                slotId = slotId1,
+                affordanceIds = listOf(affordanceId1, affordanceId3),
+            )
+            assertSelections(
+                affordanceIdsBySlotId,
+                mapOf(
+                    slotId1 to listOf(affordanceId1, affordanceId3),
+                    slotId2 to listOf(affordanceId2),
+                )
+            )
+
+            underTest.setSelections(
+                slotId = slotId1,
+                affordanceIds = listOf(affordanceId3),
+            )
+            assertSelections(
+                affordanceIdsBySlotId,
+                mapOf(
+                    slotId1 to listOf(affordanceId3),
+                    slotId2 to listOf(affordanceId2),
+                )
+            )
+
+            underTest.setSelections(
+                slotId = slotId2,
+                affordanceIds = listOf(),
+            )
+            assertSelections(
+                affordanceIdsBySlotId,
+                mapOf(
+                    slotId1 to listOf(affordanceId3),
+                    slotId2 to listOf(),
+                )
+            )
+
+            job.cancel()
+        }
+
+    private suspend fun assertSelections(
+        observed: Map<String, List<String>>?,
+        expected: Map<String, List<String>>,
+    ) {
+        assertThat(underTest.getSelections()).isEqualTo(expected)
+        assertThat(observed).isEqualTo(expected)
+    }
+
+    companion object {
+        private val IMMEDIATE = Dispatchers.Main.immediate
+    }
+}
diff --git a/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/QrCodeScannerKeyguardQuickAffordanceConfigTest.kt b/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/QrCodeScannerKeyguardQuickAffordanceConfigTest.kt
index 61a3f9f..2bd8e9a 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/QrCodeScannerKeyguardQuickAffordanceConfigTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/QrCodeScannerKeyguardQuickAffordanceConfigTest.kt
@@ -50,7 +50,7 @@
         MockitoAnnotations.initMocks(this)
         whenever(controller.intent).thenReturn(INTENT_1)
 
-        underTest = QrCodeScannerKeyguardQuickAffordanceConfig(controller)
+        underTest = QrCodeScannerKeyguardQuickAffordanceConfig(mock(), controller)
     }
 
     @Test
diff --git a/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/QuickAccessWalletKeyguardQuickAffordanceConfigTest.kt b/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/QuickAccessWalletKeyguardQuickAffordanceConfigTest.kt
index c05beef..5178154 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/QuickAccessWalletKeyguardQuickAffordanceConfigTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/quickaffordance/QuickAccessWalletKeyguardQuickAffordanceConfigTest.kt
@@ -59,6 +59,7 @@
 
         underTest =
             QuickAccessWalletKeyguardQuickAffordanceConfig(
+                mock(),
                 walletController,
                 activityStarter,
             )
diff --git a/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/repository/KeyguardQuickAffordanceRepositoryTest.kt b/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/repository/KeyguardQuickAffordanceRepositoryTest.kt
new file mode 100644
index 0000000..5a7f2bb
--- /dev/null
+++ b/packages/SystemUI/tests/src/com/android/systemui/keyguard/data/repository/KeyguardQuickAffordanceRepositoryTest.kt
@@ -0,0 +1,152 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package com.android.systemui.keyguard.data.repository
+
+import androidx.test.filters.SmallTest
+import com.android.systemui.SysuiTestCase
+import com.android.systemui.keyguard.data.quickaffordance.FakeKeyguardQuickAffordanceConfig
+import com.android.systemui.keyguard.data.quickaffordance.KeyguardQuickAffordanceConfig
+import com.android.systemui.keyguard.data.quickaffordance.KeyguardQuickAffordanceSelectionManager
+import com.android.systemui.keyguard.shared.model.KeyguardQuickAffordancePickerRepresentation
+import com.android.systemui.keyguard.shared.model.KeyguardSlotPickerRepresentation
+import com.android.systemui.shared.keyguard.shared.model.KeyguardQuickAffordanceSlots
+import com.google.common.truth.Truth.assertThat
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.runBlocking
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.junit.runners.JUnit4
+
+@OptIn(ExperimentalCoroutinesApi::class)
+@SmallTest
+@RunWith(JUnit4::class)
+class KeyguardQuickAffordanceRepositoryTest : SysuiTestCase() {
+
+    private lateinit var underTest: KeyguardQuickAffordanceRepository
+
+    private lateinit var config1: FakeKeyguardQuickAffordanceConfig
+    private lateinit var config2: FakeKeyguardQuickAffordanceConfig
+
+    @Before
+    fun setUp() {
+        config1 = FakeKeyguardQuickAffordanceConfig("built_in:1")
+        config2 = FakeKeyguardQuickAffordanceConfig("built_in:2")
+        underTest =
+            KeyguardQuickAffordanceRepository(
+                scope = CoroutineScope(IMMEDIATE),
+                backgroundDispatcher = IMMEDIATE,
+                selectionManager = KeyguardQuickAffordanceSelectionManager(),
+                configs = setOf(config1, config2),
+            )
+    }
+
+    @Test
+    fun setSelections() =
+        runBlocking(IMMEDIATE) {
+            var configsBySlotId: Map<String, List<KeyguardQuickAffordanceConfig>>? = null
+            val job = underTest.selections.onEach { configsBySlotId = it }.launchIn(this)
+            val slotId1 = "slot1"
+            val slotId2 = "slot2"
+
+            underTest.setSelections(slotId1, listOf(config1.key))
+            assertSelections(
+                configsBySlotId,
+                mapOf(
+                    slotId1 to listOf(config1),
+                ),
+            )
+
+            underTest.setSelections(slotId2, listOf(config2.key))
+            assertSelections(
+                configsBySlotId,
+                mapOf(
+                    slotId1 to listOf(config1),
+                    slotId2 to listOf(config2),
+                ),
+            )
+
+            underTest.setSelections(slotId1, emptyList())
+            underTest.setSelections(slotId2, listOf(config1.key))
+            assertSelections(
+                configsBySlotId,
+                mapOf(
+                    slotId1 to emptyList(),
+                    slotId2 to listOf(config1),
+                ),
+            )
+
+            job.cancel()
+        }
+
+    @Test
+    fun getAffordancePickerRepresentations() {
+        assertThat(underTest.getAffordancePickerRepresentations())
+            .isEqualTo(
+                listOf(
+                    KeyguardQuickAffordancePickerRepresentation(
+                        id = config1.key,
+                        name = config1.pickerName,
+                        iconResourceId = config1.pickerIconResourceId,
+                    ),
+                    KeyguardQuickAffordancePickerRepresentation(
+                        id = config2.key,
+                        name = config2.pickerName,
+                        iconResourceId = config2.pickerIconResourceId,
+                    ),
+                )
+            )
+    }
+
+    @Test
+    fun getSlotPickerRepresentations() {
+        assertThat(underTest.getSlotPickerRepresentations())
+            .isEqualTo(
+                listOf(
+                    KeyguardSlotPickerRepresentation(
+                        id = KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START,
+                        maxSelectedAffordances = 1,
+                    ),
+                    KeyguardSlotPickerRepresentation(
+                        id = KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END,
+                        maxSelectedAffordances = 1,
+                    ),
+                )
+            )
+    }
+
+    private suspend fun assertSelections(
+        observed: Map<String, List<KeyguardQuickAffordanceConfig>>?,
+        expected: Map<String, List<KeyguardQuickAffordanceConfig>>,
+    ) {
+        assertThat(observed).isEqualTo(expected)
+        assertThat(underTest.getSelections())
+            .isEqualTo(expected.mapValues { (_, configs) -> configs.map { it.key } })
+        expected.forEach { (slotId, configs) ->
+            assertThat(underTest.getSelections(slotId)).isEqualTo(configs)
+        }
+    }
+
+    companion object {
+        private val IMMEDIATE = Dispatchers.Main.immediate
+    }
+}
diff --git a/packages/SystemUI/tests/src/com/android/systemui/keyguard/domain/interactor/KeyguardQuickAffordanceInteractorParameterizedTest.kt b/packages/SystemUI/tests/src/com/android/systemui/keyguard/domain/interactor/KeyguardQuickAffordanceInteractorParameterizedTest.kt
index 7116cc1..8b6603d 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/keyguard/domain/interactor/KeyguardQuickAffordanceInteractorParameterizedTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/keyguard/domain/interactor/KeyguardQuickAffordanceInteractorParameterizedTest.kt
@@ -25,10 +25,14 @@
 import com.android.systemui.animation.Expandable
 import com.android.systemui.common.shared.model.ContentDescription
 import com.android.systemui.common.shared.model.Icon
+import com.android.systemui.flags.FakeFeatureFlags
+import com.android.systemui.flags.Flags
 import com.android.systemui.keyguard.data.quickaffordance.BuiltInKeyguardQuickAffordanceKeys
 import com.android.systemui.keyguard.data.quickaffordance.FakeKeyguardQuickAffordanceConfig
 import com.android.systemui.keyguard.data.quickaffordance.KeyguardQuickAffordanceConfig
+import com.android.systemui.keyguard.data.quickaffordance.KeyguardQuickAffordanceSelectionManager
 import com.android.systemui.keyguard.data.repository.FakeKeyguardRepository
+import com.android.systemui.keyguard.data.repository.KeyguardQuickAffordanceRepository
 import com.android.systemui.keyguard.domain.quickaffordance.FakeKeyguardQuickAffordanceRegistry
 import com.android.systemui.keyguard.shared.quickaffordance.KeyguardQuickAffordancePosition
 import com.android.systemui.plugins.ActivityStarter
@@ -37,6 +41,8 @@
 import com.android.systemui.util.mockito.any
 import com.android.systemui.util.mockito.mock
 import com.android.systemui.util.mockito.whenever
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.test.runBlockingTest
 import org.junit.Before
 import org.junit.Test
@@ -189,6 +195,8 @@
                     /* startActivity= */ true,
                 ),
             )
+
+        private val IMMEDIATE = Dispatchers.Main.immediate
     }
 
     @Mock private lateinit var lockPatternUtils: LockPatternUtils
@@ -213,10 +221,20 @@
         whenever(expandable.activityLaunchController()).thenReturn(animationController)
 
         homeControls =
-            object :
-                FakeKeyguardQuickAffordanceConfig(
-                    BuiltInKeyguardQuickAffordanceKeys.HOME_CONTROLS
-                ) {}
+            FakeKeyguardQuickAffordanceConfig(BuiltInKeyguardQuickAffordanceKeys.HOME_CONTROLS)
+        val quickAccessWallet =
+            FakeKeyguardQuickAffordanceConfig(
+                BuiltInKeyguardQuickAffordanceKeys.QUICK_ACCESS_WALLET
+            )
+        val qrCodeScanner =
+            FakeKeyguardQuickAffordanceConfig(BuiltInKeyguardQuickAffordanceKeys.QR_CODE_SCANNER)
+        val quickAffordanceRepository =
+            KeyguardQuickAffordanceRepository(
+                scope = CoroutineScope(IMMEDIATE),
+                backgroundDispatcher = IMMEDIATE,
+                selectionManager = KeyguardQuickAffordanceSelectionManager(),
+                configs = setOf(homeControls, quickAccessWallet, qrCodeScanner),
+            )
         underTest =
             KeyguardQuickAffordanceInteractor(
                 keyguardInteractor = KeyguardInteractor(repository = FakeKeyguardRepository()),
@@ -229,14 +247,8 @@
                                 ),
                             KeyguardQuickAffordancePosition.BOTTOM_END to
                                 listOf(
-                                    object :
-                                        FakeKeyguardQuickAffordanceConfig(
-                                            BuiltInKeyguardQuickAffordanceKeys.QUICK_ACCESS_WALLET
-                                        ) {},
-                                    object :
-                                        FakeKeyguardQuickAffordanceConfig(
-                                            BuiltInKeyguardQuickAffordanceKeys.QR_CODE_SCANNER
-                                        ) {},
+                                    quickAccessWallet,
+                                    qrCodeScanner,
                                 ),
                         ),
                     ),
@@ -244,6 +256,11 @@
                 keyguardStateController = keyguardStateController,
                 userTracker = userTracker,
                 activityStarter = activityStarter,
+                featureFlags =
+                    FakeFeatureFlags().apply {
+                        set(Flags.CUSTOMIZABLE_LOCK_SCREEN_QUICK_AFFORDANCES, false)
+                    },
+                repository = { quickAffordanceRepository },
             )
     }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/keyguard/domain/interactor/KeyguardQuickAffordanceInteractorTest.kt b/packages/SystemUI/tests/src/com/android/systemui/keyguard/domain/interactor/KeyguardQuickAffordanceInteractorTest.kt
index ae32ba6..3364535 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/keyguard/domain/interactor/KeyguardQuickAffordanceInteractorTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/keyguard/domain/interactor/KeyguardQuickAffordanceInteractorTest.kt
@@ -22,22 +22,31 @@
 import com.android.systemui.SysuiTestCase
 import com.android.systemui.common.shared.model.ContentDescription
 import com.android.systemui.common.shared.model.Icon
+import com.android.systemui.flags.FakeFeatureFlags
+import com.android.systemui.flags.Flags
 import com.android.systemui.keyguard.data.quickaffordance.BuiltInKeyguardQuickAffordanceKeys
 import com.android.systemui.keyguard.data.quickaffordance.FakeKeyguardQuickAffordanceConfig
 import com.android.systemui.keyguard.data.quickaffordance.KeyguardQuickAffordanceConfig
+import com.android.systemui.keyguard.data.quickaffordance.KeyguardQuickAffordanceSelectionManager
 import com.android.systemui.keyguard.data.repository.FakeKeyguardRepository
+import com.android.systemui.keyguard.data.repository.KeyguardQuickAffordanceRepository
 import com.android.systemui.keyguard.domain.model.KeyguardQuickAffordanceModel
 import com.android.systemui.keyguard.domain.quickaffordance.FakeKeyguardQuickAffordanceRegistry
 import com.android.systemui.keyguard.shared.quickaffordance.ActivationState
 import com.android.systemui.keyguard.shared.quickaffordance.KeyguardQuickAffordancePosition
 import com.android.systemui.plugins.ActivityStarter
 import com.android.systemui.settings.UserTracker
+import com.android.systemui.shared.keyguard.shared.model.KeyguardQuickAffordanceSlots
 import com.android.systemui.statusbar.policy.KeyguardStateController
 import com.android.systemui.util.mockito.mock
 import com.android.systemui.util.mockito.whenever
 import com.google.common.truth.Truth.assertThat
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.runBlocking
 import kotlinx.coroutines.test.runBlockingTest
 import kotlinx.coroutines.yield
 import org.junit.Before
@@ -47,6 +56,7 @@
 import org.mockito.Mock
 import org.mockito.MockitoAnnotations
 
+@OptIn(ExperimentalCoroutinesApi::class)
 @SmallTest
 @RunWith(JUnit4::class)
 class KeyguardQuickAffordanceInteractorTest : SysuiTestCase() {
@@ -62,6 +72,7 @@
     private lateinit var homeControls: FakeKeyguardQuickAffordanceConfig
     private lateinit var quickAccessWallet: FakeKeyguardQuickAffordanceConfig
     private lateinit var qrCodeScanner: FakeKeyguardQuickAffordanceConfig
+    private lateinit var featureFlags: FakeFeatureFlags
 
     @Before
     fun setUp() {
@@ -71,20 +82,25 @@
         repository.setKeyguardShowing(true)
 
         homeControls =
-            object :
-                FakeKeyguardQuickAffordanceConfig(
-                    BuiltInKeyguardQuickAffordanceKeys.HOME_CONTROLS
-                ) {}
+            FakeKeyguardQuickAffordanceConfig(BuiltInKeyguardQuickAffordanceKeys.HOME_CONTROLS)
         quickAccessWallet =
-            object :
-                FakeKeyguardQuickAffordanceConfig(
-                    BuiltInKeyguardQuickAffordanceKeys.QUICK_ACCESS_WALLET
-                ) {}
+            FakeKeyguardQuickAffordanceConfig(
+                BuiltInKeyguardQuickAffordanceKeys.QUICK_ACCESS_WALLET
+            )
         qrCodeScanner =
-            object :
-                FakeKeyguardQuickAffordanceConfig(
-                    BuiltInKeyguardQuickAffordanceKeys.QR_CODE_SCANNER
-                ) {}
+            FakeKeyguardQuickAffordanceConfig(BuiltInKeyguardQuickAffordanceKeys.QR_CODE_SCANNER)
+
+        val quickAffordanceRepository =
+            KeyguardQuickAffordanceRepository(
+                scope = CoroutineScope(IMMEDIATE),
+                backgroundDispatcher = IMMEDIATE,
+                selectionManager = KeyguardQuickAffordanceSelectionManager(),
+                configs = setOf(homeControls, quickAccessWallet, qrCodeScanner),
+            )
+        featureFlags =
+            FakeFeatureFlags().apply {
+                set(Flags.CUSTOMIZABLE_LOCK_SCREEN_QUICK_AFFORDANCES, false)
+            }
 
         underTest =
             KeyguardQuickAffordanceInteractor(
@@ -107,6 +123,8 @@
                 keyguardStateController = keyguardStateController,
                 userTracker = userTracker,
                 activityStarter = activityStarter,
+                featureFlags = featureFlags,
+                repository = { quickAffordanceRepository },
             )
     }
 
@@ -210,6 +228,270 @@
             job.cancel()
         }
 
+    @Test
+    fun select() =
+        runBlocking(IMMEDIATE) {
+            featureFlags.set(Flags.CUSTOMIZABLE_LOCK_SCREEN_QUICK_AFFORDANCES, true)
+            homeControls.setState(
+                KeyguardQuickAffordanceConfig.LockScreenState.Visible(icon = ICON)
+            )
+            quickAccessWallet.setState(
+                KeyguardQuickAffordanceConfig.LockScreenState.Visible(icon = ICON)
+            )
+            qrCodeScanner.setState(
+                KeyguardQuickAffordanceConfig.LockScreenState.Visible(icon = ICON)
+            )
+
+            assertThat(underTest.getSelections())
+                .isEqualTo(
+                    mapOf<String, List<String>>(
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START to emptyList(),
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END to emptyList(),
+                    )
+                )
+
+            var startConfig: KeyguardQuickAffordanceModel? = null
+            val job1 =
+                underTest
+                    .quickAffordance(KeyguardQuickAffordancePosition.BOTTOM_START)
+                    .onEach { startConfig = it }
+                    .launchIn(this)
+            var endConfig: KeyguardQuickAffordanceModel? = null
+            val job2 =
+                underTest
+                    .quickAffordance(KeyguardQuickAffordancePosition.BOTTOM_END)
+                    .onEach { endConfig = it }
+                    .launchIn(this)
+
+            underTest.select(KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START, homeControls.key)
+            yield()
+            yield()
+            assertThat(startConfig)
+                .isEqualTo(
+                    KeyguardQuickAffordanceModel.Visible(
+                        configKey =
+                            KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START +
+                                "::${homeControls.key}",
+                        icon = ICON,
+                        activationState = ActivationState.NotSupported,
+                    )
+                )
+            assertThat(endConfig)
+                .isEqualTo(
+                    KeyguardQuickAffordanceModel.Hidden,
+                )
+            assertThat(underTest.getSelections())
+                .isEqualTo(
+                    mapOf(
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START to
+                            listOf(homeControls.key),
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END to emptyList(),
+                    )
+                )
+
+            underTest.select(
+                KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START,
+                quickAccessWallet.key
+            )
+            yield()
+            yield()
+            assertThat(startConfig)
+                .isEqualTo(
+                    KeyguardQuickAffordanceModel.Visible(
+                        configKey =
+                            KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START +
+                                "::${quickAccessWallet.key}",
+                        icon = ICON,
+                        activationState = ActivationState.NotSupported,
+                    )
+                )
+            assertThat(endConfig)
+                .isEqualTo(
+                    KeyguardQuickAffordanceModel.Hidden,
+                )
+            assertThat(underTest.getSelections())
+                .isEqualTo(
+                    mapOf(
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START to
+                            listOf(quickAccessWallet.key),
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END to emptyList(),
+                    )
+                )
+
+            underTest.select(KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END, qrCodeScanner.key)
+            yield()
+            yield()
+            assertThat(startConfig)
+                .isEqualTo(
+                    KeyguardQuickAffordanceModel.Visible(
+                        configKey =
+                            KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START +
+                                "::${quickAccessWallet.key}",
+                        icon = ICON,
+                        activationState = ActivationState.NotSupported,
+                    )
+                )
+            assertThat(endConfig)
+                .isEqualTo(
+                    KeyguardQuickAffordanceModel.Visible(
+                        configKey =
+                            KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END +
+                                "::${qrCodeScanner.key}",
+                        icon = ICON,
+                        activationState = ActivationState.NotSupported,
+                    )
+                )
+            assertThat(underTest.getSelections())
+                .isEqualTo(
+                    mapOf(
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START to
+                            listOf(quickAccessWallet.key),
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END to
+                            listOf(qrCodeScanner.key),
+                    )
+                )
+
+            job1.cancel()
+            job2.cancel()
+        }
+
+    @Test
+    fun `unselect - one`() =
+        runBlocking(IMMEDIATE) {
+            featureFlags.set(Flags.CUSTOMIZABLE_LOCK_SCREEN_QUICK_AFFORDANCES, true)
+            homeControls.setState(
+                KeyguardQuickAffordanceConfig.LockScreenState.Visible(icon = ICON)
+            )
+            quickAccessWallet.setState(
+                KeyguardQuickAffordanceConfig.LockScreenState.Visible(icon = ICON)
+            )
+            qrCodeScanner.setState(
+                KeyguardQuickAffordanceConfig.LockScreenState.Visible(icon = ICON)
+            )
+
+            var startConfig: KeyguardQuickAffordanceModel? = null
+            val job1 =
+                underTest
+                    .quickAffordance(KeyguardQuickAffordancePosition.BOTTOM_START)
+                    .onEach { startConfig = it }
+                    .launchIn(this)
+            var endConfig: KeyguardQuickAffordanceModel? = null
+            val job2 =
+                underTest
+                    .quickAffordance(KeyguardQuickAffordancePosition.BOTTOM_END)
+                    .onEach { endConfig = it }
+                    .launchIn(this)
+            underTest.select(KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START, homeControls.key)
+            yield()
+            yield()
+            underTest.select(KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END, quickAccessWallet.key)
+            yield()
+            yield()
+
+            underTest.unselect(KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START, homeControls.key)
+            yield()
+            yield()
+
+            assertThat(startConfig)
+                .isEqualTo(
+                    KeyguardQuickAffordanceModel.Hidden,
+                )
+            assertThat(endConfig)
+                .isEqualTo(
+                    KeyguardQuickAffordanceModel.Visible(
+                        configKey =
+                            KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END +
+                                "::${quickAccessWallet.key}",
+                        icon = ICON,
+                        activationState = ActivationState.NotSupported,
+                    )
+                )
+            assertThat(underTest.getSelections())
+                .isEqualTo(
+                    mapOf(
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START to emptyList(),
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END to
+                            listOf(quickAccessWallet.key),
+                    )
+                )
+
+            underTest.unselect(
+                KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END,
+                quickAccessWallet.key
+            )
+            yield()
+            yield()
+
+            assertThat(startConfig)
+                .isEqualTo(
+                    KeyguardQuickAffordanceModel.Hidden,
+                )
+            assertThat(endConfig)
+                .isEqualTo(
+                    KeyguardQuickAffordanceModel.Hidden,
+                )
+            assertThat(underTest.getSelections())
+                .isEqualTo(
+                    mapOf<String, List<String>>(
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START to emptyList(),
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END to emptyList(),
+                    )
+                )
+
+            job1.cancel()
+            job2.cancel()
+        }
+
+    @Test
+    fun `unselect - all`() =
+        runBlocking(IMMEDIATE) {
+            featureFlags.set(Flags.CUSTOMIZABLE_LOCK_SCREEN_QUICK_AFFORDANCES, true)
+            homeControls.setState(
+                KeyguardQuickAffordanceConfig.LockScreenState.Visible(icon = ICON)
+            )
+            quickAccessWallet.setState(
+                KeyguardQuickAffordanceConfig.LockScreenState.Visible(icon = ICON)
+            )
+            qrCodeScanner.setState(
+                KeyguardQuickAffordanceConfig.LockScreenState.Visible(icon = ICON)
+            )
+
+            underTest.select(KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START, homeControls.key)
+            yield()
+            yield()
+            underTest.select(KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END, quickAccessWallet.key)
+            yield()
+            yield()
+
+            underTest.unselect(KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START, null)
+            yield()
+            yield()
+
+            assertThat(underTest.getSelections())
+                .isEqualTo(
+                    mapOf(
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START to emptyList(),
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END to
+                            listOf(quickAccessWallet.key),
+                    )
+                )
+
+            underTest.unselect(
+                KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END,
+                null,
+            )
+            yield()
+            yield()
+
+            assertThat(underTest.getSelections())
+                .isEqualTo(
+                    mapOf<String, List<String>>(
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_START to emptyList(),
+                        KeyguardQuickAffordanceSlots.SLOT_ID_BOTTOM_END to emptyList(),
+                    )
+                )
+        }
+
     companion object {
         private val ICON: Icon = mock {
             whenever(this.contentDescription)
@@ -220,5 +502,6 @@
                 )
         }
         private const val CONTENT_DESCRIPTION_RESOURCE_ID = 1337
+        private val IMMEDIATE = Dispatchers.Main.immediate
     }
 }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/keyguard/ui/viewmodel/KeyguardBottomAreaViewModelTest.kt b/packages/SystemUI/tests/src/com/android/systemui/keyguard/ui/viewmodel/KeyguardBottomAreaViewModelTest.kt
index f73d1ec..78148c4 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/keyguard/ui/viewmodel/KeyguardBottomAreaViewModelTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/keyguard/ui/viewmodel/KeyguardBottomAreaViewModelTest.kt
@@ -23,10 +23,14 @@
 import com.android.systemui.animation.Expandable
 import com.android.systemui.common.shared.model.Icon
 import com.android.systemui.doze.util.BurnInHelperWrapper
+import com.android.systemui.flags.FakeFeatureFlags
+import com.android.systemui.flags.Flags
 import com.android.systemui.keyguard.data.quickaffordance.BuiltInKeyguardQuickAffordanceKeys
 import com.android.systemui.keyguard.data.quickaffordance.FakeKeyguardQuickAffordanceConfig
 import com.android.systemui.keyguard.data.quickaffordance.KeyguardQuickAffordanceConfig
+import com.android.systemui.keyguard.data.quickaffordance.KeyguardQuickAffordanceSelectionManager
 import com.android.systemui.keyguard.data.repository.FakeKeyguardRepository
+import com.android.systemui.keyguard.data.repository.KeyguardQuickAffordanceRepository
 import com.android.systemui.keyguard.domain.interactor.KeyguardBottomAreaInteractor
 import com.android.systemui.keyguard.domain.interactor.KeyguardInteractor
 import com.android.systemui.keyguard.domain.interactor.KeyguardQuickAffordanceInteractor
@@ -41,6 +45,8 @@
 import com.google.common.truth.Truth.assertThat
 import kotlin.math.max
 import kotlin.math.min
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.test.runBlockingTest
@@ -82,20 +88,13 @@
             .thenReturn(RETURNED_BURN_IN_OFFSET)
 
         homeControlsQuickAffordanceConfig =
-            object :
-                FakeKeyguardQuickAffordanceConfig(
-                    BuiltInKeyguardQuickAffordanceKeys.HOME_CONTROLS
-                ) {}
+            FakeKeyguardQuickAffordanceConfig(BuiltInKeyguardQuickAffordanceKeys.HOME_CONTROLS)
         quickAccessWalletAffordanceConfig =
-            object :
-                FakeKeyguardQuickAffordanceConfig(
-                    BuiltInKeyguardQuickAffordanceKeys.QUICK_ACCESS_WALLET
-                ) {}
+            FakeKeyguardQuickAffordanceConfig(
+                BuiltInKeyguardQuickAffordanceKeys.QUICK_ACCESS_WALLET
+            )
         qrCodeScannerAffordanceConfig =
-            object :
-                FakeKeyguardQuickAffordanceConfig(
-                    BuiltInKeyguardQuickAffordanceKeys.QR_CODE_SCANNER
-                ) {}
+            FakeKeyguardQuickAffordanceConfig(BuiltInKeyguardQuickAffordanceKeys.QR_CODE_SCANNER)
         registry =
             FakeKeyguardQuickAffordanceRegistry(
                 mapOf(
@@ -116,6 +115,18 @@
         whenever(userTracker.userHandle).thenReturn(mock())
         whenever(lockPatternUtils.getStrongAuthForUser(anyInt()))
             .thenReturn(LockPatternUtils.StrongAuthTracker.STRONG_AUTH_NOT_REQUIRED)
+        val quickAffordanceRepository =
+            KeyguardQuickAffordanceRepository(
+                scope = CoroutineScope(IMMEDIATE),
+                backgroundDispatcher = IMMEDIATE,
+                selectionManager = KeyguardQuickAffordanceSelectionManager(),
+                configs =
+                    setOf(
+                        homeControlsQuickAffordanceConfig,
+                        quickAccessWalletAffordanceConfig,
+                        qrCodeScannerAffordanceConfig,
+                    ),
+            )
         underTest =
             KeyguardBottomAreaViewModel(
                 keyguardInteractor = keyguardInteractor,
@@ -127,6 +138,11 @@
                         keyguardStateController = keyguardStateController,
                         userTracker = userTracker,
                         activityStarter = activityStarter,
+                        featureFlags =
+                            FakeFeatureFlags().apply {
+                                set(Flags.CUSTOMIZABLE_LOCK_SCREEN_QUICK_AFFORDANCES, false)
+                            },
+                        repository = { quickAffordanceRepository },
                     ),
                 bottomAreaInteractor = KeyguardBottomAreaInteractor(repository = repository),
                 burnInHelperWrapper = burnInHelperWrapper,
@@ -576,5 +592,6 @@
     companion object {
         private const val DEFAULT_BURN_IN_OFFSET = 5
         private const val RETURNED_BURN_IN_OFFSET = 3
+        private val IMMEDIATE = Dispatchers.Main.immediate
     }
 }