FFs can now be toggled in release builds too (#3101)

- Removed `StaticFeatureFlagProvider`.
- Always provide `PreferencesFeatureFlagProvider`.
- For the default values of feature flags, use a lambda with a `BuildMeta` parameter so we can customize the return value based on its data.

appconfig/src/main/kotlin/io/element/android/appconfig/OnBoardingConfig.kt

@@ -18,7 +18,7 @@ package io.element.android.appconfig
 
 object OnBoardingConfig {
     /** Whether the user can use QR code login. */
-    const val CAN_LOGIN_WITH_QR_CODE = false
+    const val CAN_LOGIN_WITH_QR_CODE = true
 
     /** Whether the user can create an account using the app. */
     const val CAN_CREATE_ACCOUNT = false

changelog.d/3073.bugfix

@@ -0,0 +1 @@
+Fix feature flags not being able to be toggle in developer settings in release builds.

features/messages/impl/src/test/kotlin/io/element/android/features/messages/impl/MessagesPresenterTest.kt

@@ -745,7 +745,7 @@ class MessagesPresenterTest {
 
     private suspend fun <T> ReceiveTurbine<T>.awaitFirstItem(): T {
         // Skip 2 item if Mentions feature is enabled, else 1
-        skipItems(if (FeatureFlags.Mentions.defaultValue) 2 else 1)
+        skipItems(if (FeatureFlags.Mentions.defaultValue(aBuildMeta())) 2 else 1)
         return awaitItem()
     }
 

features/messages/impl/src/test/kotlin/io/element/android/features/messages/impl/textcomposer/MessageComposerPresenterTest.kt

@@ -63,6 +63,7 @@ import io.element.android.libraries.matrix.test.A_USER_ID
 import io.element.android.libraries.matrix.test.A_USER_ID_2
 import io.element.android.libraries.matrix.test.A_USER_ID_3
 import io.element.android.libraries.matrix.test.A_USER_ID_4
+import io.element.android.libraries.matrix.test.core.aBuildMeta
 import io.element.android.libraries.matrix.test.permalink.FakePermalinkBuilder
 import io.element.android.libraries.matrix.test.permalink.FakePermalinkParser
 import io.element.android.libraries.matrix.test.room.FakeMatrixRoom
@@ -828,7 +829,6 @@ class MessageComposerPresenterTest {
 
             // If room is a DM, `RoomMemberSuggestion.Room` is not returned
             room.givenCanTriggerRoomNotification(Result.success(true))
-            room.isDirect
         }
     }
 
@@ -1300,7 +1300,7 @@ class MessageComposerPresenterTest {
 
     private suspend fun <T> ReceiveTurbine<T>.awaitFirstItem(): T {
         // Skip 2 item if Mentions feature is enabled, else 1
-        skipItems(if (FeatureFlags.Mentions.defaultValue) 2 else 1)
+        skipItems(if (FeatureFlags.Mentions.defaultValue(aBuildMeta())) 2 else 1)
         return awaitItem()
     }
 }

features/onboarding/impl/src/test/kotlin/io/element/android/features/onboarding/impl/OnBoardingPresenterTest.kt

@@ -35,13 +35,18 @@ class OnBoardingPresenterTest {
 
     @Test
     fun `present - initial state`() = runTest {
+        val buildMeta = aBuildMeta(
+            applicationName = "A",
+            productionApplicationName = "B",
+            desktopApplicationName = "C",
+        )
+        val featureFlagService = FakeFeatureFlagService(
+            initialState = mapOf(FeatureFlags.QrCodeLogin.key to true),
+            buildMeta = buildMeta,
+        )
         val presenter = OnBoardingPresenter(
-            buildMeta = aBuildMeta(
-                applicationName = "A",
-                productionApplicationName = "B",
-                desktopApplicationName = "C",
-            ),
-            featureFlagService = FakeFeatureFlagService(initialState = mapOf(FeatureFlags.QrCodeLogin.name to true)),
+            buildMeta = buildMeta,
+            featureFlagService = featureFlagService,
         )
         moleculeFlow(RecompositionMode.Immediate) {
             presenter.present()

libraries/featureflag/api/build.gradle.kts

@@ -23,5 +23,7 @@ android {
 }
 
 dependencies {
+    implementation(projects.appconfig)
+    implementation(projects.libraries.core)
     implementation(libs.coroutines.core)
 }

libraries/featureflag/api/src/main/kotlin/io/element/android/libraries/featureflag/api/Feature.kt

@@ -16,6 +16,8 @@
 
 package io.element.android.libraries.featureflag.api
 
+import io.element.android.libraries.core.meta.BuildMeta
+
 interface Feature {
     /**
      * Unique key to identify the feature.
@@ -33,9 +35,9 @@ interface Feature {
     val description: String?
 
     /**
-     * The default value of the feature (enabled or disabled).
+     * Calculate the default value of the feature (enabled or disabled) given a [BuildMeta].
      */
-    val defaultValue: Boolean
+    val defaultValue: (BuildMeta) -> Boolean
 
     /**
      * Whether the feature is finished or not.

libraries/featureflag/api/src/main/kotlin/io/element/android/libraries/featureflag/api/FeatureFlags.kt

@@ -16,6 +16,10 @@
 
 package io.element.android.libraries.featureflag.api
 
+import io.element.android.appconfig.OnBoardingConfig
+import io.element.android.libraries.core.meta.BuildMeta
+import io.element.android.libraries.core.meta.BuildType
+
 /**
  * To enable or disable a FeatureFlags, change the `defaultValue` value.
  * Warning: to enable a flag for the release app, you MUST update the file
@@ -25,82 +29,88 @@ enum class FeatureFlags(
     override val key: String,
     override val title: String,
     override val description: String? = null,
-    override val defaultValue: Boolean,
+    override val defaultValue: (BuildMeta) -> Boolean,
     override val isFinished: Boolean,
 ) : Feature {
     LocationSharing(
         key = "feature.locationsharing",
         title = "Allow user to share location",
-        defaultValue = true,
+        defaultValue = { true },
         isFinished = true,
     ),
     Polls(
         key = "feature.polls",
         title = "Polls",
         description = "Create poll and render poll events in the timeline",
-        defaultValue = true,
+        defaultValue = { true },
         isFinished = true,
     ),
     NotificationSettings(
         key = "feature.notificationsettings",
         title = "Show notification settings",
-        defaultValue = true,
+        defaultValue = { true },
         isFinished = true,
     ),
     VoiceMessages(
         key = "feature.voicemessages",
         title = "Voice messages",
         description = "Send and receive voice messages",
-        defaultValue = true,
+        defaultValue = { true },
         isFinished = true,
     ),
     PinUnlock(
         key = "feature.pinunlock",
         title = "Pin unlock",
         description = "Allow user to lock/unlock the app with a pin code or biometrics",
-        defaultValue = true,
+        defaultValue = { true },
         isFinished = true,
     ),
     Mentions(
         key = "feature.mentions",
         title = "Mentions",
         description = "Type `@` to get mention suggestions and insert them",
-        defaultValue = true,
+        defaultValue = { true },
         isFinished = false,
     ),
     MarkAsUnread(
         key = "feature.markAsUnread",
         title = "Mark as unread",
         description = "Allow user to mark a room as unread",
-        defaultValue = true,
+        defaultValue = { true },
         isFinished = false,
     ),
     RoomDirectorySearch(
         key = "feature.roomdirectorysearch",
         title = "Room directory search",
         description = "Allow user to search for public rooms in their homeserver",
-        defaultValue = false,
+        defaultValue = { false },
         isFinished = false,
     ),
     ShowBlockedUsersDetails(
         key = "feature.showBlockedUsersDetails",
         title = "Show blocked users details",
         description = "Show the name and avatar of blocked users in the blocked users list",
-        defaultValue = false,
+        defaultValue = { false },
         isFinished = false,
     ),
     QrCodeLogin(
         key = "feature.qrCodeLogin",
         title = "Enable login using QR code",
         description = "Allow the user to login using the QR code flow",
-        defaultValue = true,
+        defaultValue = { buildMeta ->
+            when (buildMeta.buildType) {
+                // TODO remove once the feature is ready to publish
+                BuildType.RELEASE -> false
+                else -> OnBoardingConfig.CAN_LOGIN_WITH_QR_CODE
+            }
+        },
         isFinished = false,
     ),
     IncomingShare(
         key = "feature.incomingShare",
         title = "Incoming Share support",
         description = "Allow the application to receive data from other applications",
-        defaultValue = true,
+        defaultValue = { true },
         isFinished = false,
     ),
 }

libraries/featureflag/impl/build.gradle.kts

@@ -41,4 +41,5 @@ dependencies {
     testImplementation(libs.coroutines.test)
     testImplementation(libs.test.truth)
     testImplementation(libs.test.turbine)
+    testImplementation(projects.libraries.matrix.test)
 }

libraries/featureflag/impl/src/main/kotlin/io/element/android/libraries/featureflag/impl/DefaultFeatureFlagService.kt

@@ -17,6 +17,7 @@
 package io.element.android.libraries.featureflag.impl
 
 import com.squareup.anvil.annotations.ContributesBinding
+import io.element.android.libraries.core.meta.BuildMeta
 import io.element.android.libraries.di.AppScope
 import io.element.android.libraries.di.SingleIn
 import io.element.android.libraries.featureflag.api.Feature
@@ -28,14 +29,15 @@ import javax.inject.Inject
 @ContributesBinding(AppScope::class)
 @SingleIn(AppScope::class)
 class DefaultFeatureFlagService @Inject constructor(
-    private val providers: Set<@JvmSuppressWildcards FeatureFlagProvider>
+    private val providers: Set<@JvmSuppressWildcards FeatureFlagProvider>,
+    private val buildMeta: BuildMeta,
 ) : FeatureFlagService {
     override fun isFeatureEnabledFlow(feature: Feature): Flow<Boolean> {
         return providers.filter { it.hasFeature(feature) }
             .sortedByDescending(FeatureFlagProvider::priority)
             .firstOrNull()
             ?.isFeatureEnabledFlow(feature)
-            ?: flowOf(feature.defaultValue)
+            ?: flowOf(feature.defaultValue(buildMeta))
     }
 
     override suspend fun setFeatureEnabled(feature: Feature, enabled: Boolean): Boolean {

libraries/featureflag/impl/src/main/kotlin/io/element/android/libraries/featureflag/impl/PreferencesFeatureFlagProvider.kt

@@ -22,6 +22,7 @@ import androidx.datastore.preferences.core.Preferences
 import androidx.datastore.preferences.core.booleanPreferencesKey
 import androidx.datastore.preferences.core.edit
 import androidx.datastore.preferences.preferencesDataStore
+import io.element.android.libraries.core.meta.BuildMeta
 import io.element.android.libraries.di.ApplicationContext
 import io.element.android.libraries.featureflag.api.Feature
 import kotlinx.coroutines.flow.Flow
@@ -34,7 +35,10 @@ private val Context.dataStore: DataStore<Preferences> by preferencesDataStore(na
 /**
  * Note: this will be used only in the nightly and in the debug build.
  */
-class PreferencesFeatureFlagProvider @Inject constructor(@ApplicationContext context: Context) : MutableFeatureFlagProvider {
+class PreferencesFeatureFlagProvider @Inject constructor(
+    @ApplicationContext context: Context,
+    private val buildMeta: BuildMeta,
+) : MutableFeatureFlagProvider {
     private val store = context.dataStore
 
     override val priority = MEDIUM_PRIORITY
@@ -47,7 +51,7 @@ class PreferencesFeatureFlagProvider @Inject constructor(@ApplicationContext con
 
     override fun isFeatureEnabledFlow(feature: Feature): Flow<Boolean> {
         return store.data.map { prefs ->
-            prefs[booleanPreferencesKey(feature.key)] ?: feature.defaultValue
+            prefs[booleanPreferencesKey(feature.key)] ?: feature.defaultValue(buildMeta)
         }.distinctUntilChanged()
     }
 

libraries/featureflag/impl/src/main/kotlin/io/element/android/libraries/featureflag/impl/StaticFeatureFlagProvider.kt

@@ -1,56 +0,0 @@
-/*
- * Copyright (c) 2023 New Vector Ltd
- *
- * 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 io.element.android.libraries.featureflag.impl
-
-import io.element.android.appconfig.OnBoardingConfig
-import io.element.android.libraries.featureflag.api.Feature
-import io.element.android.libraries.featureflag.api.FeatureFlags
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.flowOf
-import javax.inject.Inject
-
-/**
- * This provider is used for release build.
- * This is the place to enable or disable feature for the release build.
- */
-class StaticFeatureFlagProvider @Inject constructor() :
-    FeatureFlagProvider {
-    override val priority = LOW_PRIORITY
-
-    override fun isFeatureEnabledFlow(feature: Feature): Flow<Boolean> {
-        val isFeatureEnabled = if (feature is FeatureFlags) {
-            when (feature) {
-                FeatureFlags.LocationSharing -> true
-                FeatureFlags.Polls -> true
-                FeatureFlags.NotificationSettings -> true
-                FeatureFlags.VoiceMessages -> true
-                FeatureFlags.PinUnlock -> true
-                FeatureFlags.Mentions -> true
-                FeatureFlags.MarkAsUnread -> true
-                FeatureFlags.RoomDirectorySearch -> false
-                FeatureFlags.ShowBlockedUsersDetails -> false
-                FeatureFlags.QrCodeLogin -> OnBoardingConfig.CAN_LOGIN_WITH_QR_CODE
-                FeatureFlags.IncomingShare -> true
-            }
-        } else {
-            false
-        }
-        return flowOf(isFeatureEnabled)
-    }
-
-    override fun hasFeature(feature: Feature) = true
-}

libraries/featureflag/impl/src/main/kotlin/io/element/android/libraries/featureflag/impl/di/FeatureFlagModule.kt

@@ -20,11 +20,9 @@ import com.squareup.anvil.annotations.ContributesTo
 import dagger.Module
 import dagger.Provides
 import dagger.multibindings.ElementsIntoSet
-import io.element.android.libraries.core.meta.BuildType
 import io.element.android.libraries.di.AppScope
 import io.element.android.libraries.featureflag.impl.FeatureFlagProvider
 import io.element.android.libraries.featureflag.impl.PreferencesFeatureFlagProvider
-import io.element.android.libraries.featureflag.impl.StaticFeatureFlagProvider
 
 @Module
 @ContributesTo(AppScope::class)
@@ -33,20 +31,10 @@ object FeatureFlagModule {
     @Provides
     @ElementsIntoSet
     fun providesFeatureFlagProvider(
-        buildType: BuildType,
         mutableFeatureFlagProvider: PreferencesFeatureFlagProvider,
-        staticFeatureFlagProvider: StaticFeatureFlagProvider,
     ): Set<FeatureFlagProvider> {
-        val providers = HashSet<FeatureFlagProvider>()
-        when (buildType) {
-            BuildType.RELEASE -> {
-                providers.add(staticFeatureFlagProvider)
-            }
-            BuildType.NIGHTLY,
-            BuildType.DEBUG -> {
-                providers.add(mutableFeatureFlagProvider)
-            }
+        return buildSet {
+            add(mutableFeatureFlagProvider)
         }
-        return providers
     }
 }

libraries/featureflag/impl/src/test/kotlin/io/element/android/libraries/featureflag/impl/DefaultFeatureFlagServiceTest.kt

@@ -19,38 +19,42 @@ package io.element.android.libraries.featureflag.impl
 import app.cash.turbine.test
 import com.google.common.truth.Truth.assertThat
 import io.element.android.libraries.featureflag.api.FeatureFlags
+import io.element.android.libraries.matrix.test.core.aBuildMeta
 import kotlinx.coroutines.test.runTest
 import org.junit.Test
 
 class DefaultFeatureFlagServiceTest {
     @Test
     fun `given service without provider when feature is checked then it returns the default value`() = runTest {
-        val featureFlagService = DefaultFeatureFlagService(emptySet())
+        val buildMeta = aBuildMeta()
+        val featureFlagService = DefaultFeatureFlagService(emptySet(), buildMeta)
         featureFlagService.isFeatureEnabledFlow(FeatureFlags.LocationSharing).test {
-            assertThat(awaitItem()).isEqualTo(FeatureFlags.LocationSharing.defaultValue)
+            assertThat(awaitItem()).isEqualTo(FeatureFlags.LocationSharing.defaultValue(buildMeta))
             cancelAndIgnoreRemainingEvents()
         }
     }
 
     @Test
     fun `given service without provider when set enabled feature is called then it returns false`() = runTest {
-        val featureFlagService = DefaultFeatureFlagService(emptySet())
+        val featureFlagService = DefaultFeatureFlagService(emptySet(), aBuildMeta())
         val result = featureFlagService.setFeatureEnabled(FeatureFlags.LocationSharing, true)
         assertThat(result).isFalse()
     }
 
     @Test
     fun `given service with a runtime provider when set enabled feature is called then it returns true`() = runTest {
-        val featureFlagProvider = FakeMutableFeatureFlagProvider(0)
-        val featureFlagService = DefaultFeatureFlagService(setOf(featureFlagProvider))
+        val buildMeta = aBuildMeta()
+        val featureFlagProvider = FakeMutableFeatureFlagProvider(0, buildMeta)
+        val featureFlagService = DefaultFeatureFlagService(setOf(featureFlagProvider), buildMeta)
         val result = featureFlagService.setFeatureEnabled(FeatureFlags.LocationSharing, true)
         assertThat(result).isTrue()
     }
 
     @Test
     fun `given service with a runtime provider and feature enabled when feature is checked then it returns the correct value`() = runTest {
-        val featureFlagProvider = FakeMutableFeatureFlagProvider(0)
-        val featureFlagService = DefaultFeatureFlagService(setOf(featureFlagProvider))
+        val buildMeta = aBuildMeta()
+        val featureFlagProvider = FakeMutableFeatureFlagProvider(0, buildMeta)
+        val featureFlagService = DefaultFeatureFlagService(setOf(featureFlagProvider), buildMeta)
         featureFlagService.setFeatureEnabled(FeatureFlags.LocationSharing, true)
         featureFlagService.isFeatureEnabledFlow(FeatureFlags.LocationSharing).test {
             assertThat(awaitItem()).isTrue()
@@ -61,9 +65,10 @@ class DefaultFeatureFlagServiceTest {
 
     @Test
     fun `given service with 2 runtime providers when feature is checked then it uses the priority correctly`() = runTest {
-        val lowPriorityFeatureFlagProvider = FakeMutableFeatureFlagProvider(LOW_PRIORITY)
-        val highPriorityFeatureFlagProvider = FakeMutableFeatureFlagProvider(HIGH_PRIORITY)
-        val featureFlagService = DefaultFeatureFlagService(setOf(lowPriorityFeatureFlagProvider, highPriorityFeatureFlagProvider))
+        val buildMeta = aBuildMeta()
+        val lowPriorityFeatureFlagProvider = FakeMutableFeatureFlagProvider(LOW_PRIORITY, buildMeta)
+        val highPriorityFeatureFlagProvider = FakeMutableFeatureFlagProvider(HIGH_PRIORITY, buildMeta)
+        val featureFlagService = DefaultFeatureFlagService(setOf(lowPriorityFeatureFlagProvider, highPriorityFeatureFlagProvider), buildMeta)
         lowPriorityFeatureFlagProvider.setFeatureEnabled(FeatureFlags.LocationSharing, false)
         highPriorityFeatureFlagProvider.setFeatureEnabled(FeatureFlags.LocationSharing, true)
         featureFlagService.isFeatureEnabledFlow(FeatureFlags.LocationSharing).test {

libraries/featureflag/impl/src/test/kotlin/io/element/android/libraries/featureflag/impl/FakeMutableFeatureFlagProvider.kt

@@ -16,11 +16,15 @@
 
 package io.element.android.libraries.featureflag.impl
 
+import io.element.android.libraries.core.meta.BuildMeta
 import io.element.android.libraries.featureflag.api.Feature
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
 
-class FakeMutableFeatureFlagProvider(override val priority: Int) : MutableFeatureFlagProvider {
+class FakeMutableFeatureFlagProvider(
+    override val priority: Int,
+    private val buildMeta: BuildMeta,
+) : MutableFeatureFlagProvider {
     private val enabledFeatures = mutableMapOf<String, MutableStateFlow<Boolean>>()
 
     override suspend fun setFeatureEnabled(feature: Feature, enabled: Boolean) {
@@ -29,7 +33,7 @@ class FakeMutableFeatureFlagProvider(override val priority: Int) : MutableFeatur
     }
 
     override fun isFeatureEnabledFlow(feature: Feature): Flow<Boolean> {
-        return enabledFeatures.getOrPut(feature.key) { MutableStateFlow(feature.defaultValue) }
+        return enabledFeatures.getOrPut(feature.key) { MutableStateFlow(feature.defaultValue(buildMeta)) }
     }
 
     override fun hasFeature(feature: Feature): Boolean = true

libraries/featureflag/test/build.gradle.kts

@@ -23,6 +23,8 @@ android {
 
     dependencies {
         api(projects.libraries.featureflag.api)
+        implementation(projects.libraries.core)
+        implementation(projects.libraries.matrix.test)
         implementation(libs.coroutines.core)
     }
 }

libraries/featureflag/test/src/main/java/io/element/android/libraries/featureflag/test/FakeFeatureFlagService.kt

@@ -16,19 +16,19 @@
 
 package io.element.android.libraries.featureflag.test
 
+import io.element.android.libraries.core.meta.BuildMeta
 import io.element.android.libraries.featureflag.api.Feature
 import io.element.android.libraries.featureflag.api.FeatureFlagService
+import io.element.android.libraries.matrix.test.core.aBuildMeta
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
 
 class FakeFeatureFlagService(
-    initialState: Map<String, Boolean> = emptyMap()
+    initialState: Map<String, Boolean> = emptyMap(),
+    private val buildMeta: BuildMeta = aBuildMeta(),
 ) : FeatureFlagService {
     private val enabledFeatures = initialState
-        .map {
-            it.key to MutableStateFlow(it.value)
-        }
-        .toMap()
+        .mapValues { MutableStateFlow(it.value) }
         .toMutableMap()
 
     override suspend fun setFeatureEnabled(feature: Feature, enabled: Boolean): Boolean {
@@ -38,6 +38,6 @@ class FakeFeatureFlagService(
     }
 
     override fun isFeatureEnabledFlow(feature: Feature): Flow<Boolean> {
-        return enabledFeatures.getOrPut(feature.key) { MutableStateFlow(feature.defaultValue) }
+        return enabledFeatures.getOrPut(feature.key) { MutableStateFlow(feature.defaultValue(buildMeta)) }
     }
 }

samples/minimal/build.gradle.kts

@@ -30,6 +30,10 @@ android {
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
 
+    buildFeatures {
+        buildConfig = true
+    }
+
     buildTypes {
         release {
             isMinifyEnabled = false

samples/minimal/src/main/kotlin/io/element/android/samples/minimal/RoomListScreen.kt

@@ -35,6 +35,8 @@ import io.element.android.features.roomlist.impl.migration.SharedPreferencesMigr
 import io.element.android.features.roomlist.impl.search.RoomListSearchDataSource
 import io.element.android.features.roomlist.impl.search.RoomListSearchPresenter
 import io.element.android.libraries.core.coroutine.CoroutineDispatchers
+import io.element.android.libraries.core.meta.BuildMeta
+import io.element.android.libraries.core.meta.BuildType
 import io.element.android.libraries.dateformatter.impl.DateFormatters
 import io.element.android.libraries.dateformatter.impl.DefaultLastMessageTimestampFormatter
 import io.element.android.libraries.dateformatter.impl.LocalDateTimeProvider
@@ -44,7 +46,7 @@ import io.element.android.libraries.eventformatter.impl.ProfileChangeContentForm
 import io.element.android.libraries.eventformatter.impl.RoomMembershipContentFormatter
 import io.element.android.libraries.eventformatter.impl.StateContentFormatter
 import io.element.android.libraries.featureflag.impl.DefaultFeatureFlagService
-import io.element.android.libraries.featureflag.impl.StaticFeatureFlagProvider
+import io.element.android.libraries.featureflag.impl.PreferencesFeatureFlagProvider
 import io.element.android.libraries.fullscreenintent.api.FullScreenIntentPermissionsPresenter
 import io.element.android.libraries.fullscreenintent.api.FullScreenIntentPermissionsState
 import io.element.android.libraries.indicator.impl.DefaultIndicatorService
@@ -78,8 +80,12 @@ class RoomListScreen(
     private val sessionVerificationService = matrixClient.sessionVerificationService()
     private val encryptionService = matrixClient.encryptionService()
     private val stringProvider = AndroidStringProvider(context.resources)
+    private val buildMeta = getBuildMeta(context)
     private val featureFlagService = DefaultFeatureFlagService(
-        providers = setOf(StaticFeatureFlagProvider())
+        providers = setOf(
+            PreferencesFeatureFlagProvider(context = context, buildMeta = buildMeta)
+        ),
+        buildMeta = buildMeta,
     )
     private val roomListRoomSummaryFactory = RoomListRoomSummaryFactory(
         lastMessageTimestampFormatter = DefaultLastMessageTimestampFormatter(
@@ -195,4 +201,24 @@ class RoomListScreen(
             }
         }
     }
+
+    private fun getBuildMeta(context: Context): BuildMeta {
+        val buildType = BuildType.valueOf(BuildConfig.BUILD_TYPE.uppercase())
+        val name = context.getString(R.string.app_name)
+        return BuildMeta(
+            isDebuggable = BuildConfig.DEBUG,
+            buildType = buildType,
+            applicationName = name,
+            productionApplicationName = name,
+            desktopApplicationName = name,
+            applicationId = BuildConfig.APPLICATION_ID,
+            lowPrivacyLoggingEnabled = false,
+            versionName = BuildConfig.VERSION_NAME,
+            versionCode = BuildConfig.VERSION_CODE.toLong(),
+            gitRevision = "",
+            gitBranchName = "",
+            flavorDescription = "",
+            flavorShortDescription = "",
+        )
+    }
 }