Introduce simplePluralStringResource methods, as Composable and in StringProvider.

features/invitepeople/impl/build.gradle.kts

@@ -33,6 +33,7 @@ dependencies {
     implementation(projects.libraries.matrixui)
     implementation(projects.libraries.designsystem)
     implementation(projects.libraries.uiStrings)
+    implementation(projects.libraries.uiUtils)
     implementation(projects.libraries.androidutils)
     implementation(projects.libraries.usersearch.api)
     implementation(libs.coil.compose)

features/invitepeople/impl/src/main/kotlin/io/element/android/features/invitepeople/impl/InvitePeopleView.kt

@@ -55,6 +55,7 @@ import io.element.android.libraries.matrix.ui.components.SelectedUsersRowList
 import io.element.android.libraries.matrix.ui.model.getAvatarData
 import io.element.android.libraries.matrix.ui.model.getBestName
 import io.element.android.libraries.ui.strings.CommonStrings
+import io.element.android.libraries.ui.utils.strings.simplePluralStringResource
 import kotlinx.collections.immutable.ImmutableList
 
 @Composable
@@ -263,16 +264,16 @@ private fun InvitePeopleConfirmModal(
         dragHandle = null,
     ) {
         IconTitleSubtitleMolecule(
-            title = if (users.size > 1) {
+            title = simplePluralStringResource(
-                stringResource(R.string.screen_invite_users_confirm_dialog_title_mutiple_users)
+                resIdForOne = R.string.screen_invite_users_confirm_dialog_title_one_user,
-            } else {
+                resIdForOthers = R.string.screen_invite_users_confirm_dialog_title_mutiple_users,
-                stringResource(R.string.screen_invite_users_confirm_dialog_title_one_user)
+                count = users.size,
-            },
+            ),
-            subTitle = if (users.size > 1) {
+            subTitle = simplePluralStringResource(
-                stringResource(R.string.screen_invite_users_confirm_dialog_subtitle_multiple_users)
+                resIdForOne = R.string.screen_invite_users_confirm_dialog_subtitle_one_user,
-            } else {
+                resIdForOthers = R.string.screen_invite_users_confirm_dialog_subtitle_multiple_users,
-                stringResource(R.string.screen_invite_users_confirm_dialog_subtitle_one_user)
+                count = users.size,
-            },
+            ),
             iconStyle = BigIcon.Style.Default(CompoundIcons.UserAddSolid()),
             modifier = Modifier.padding(
                 top = 32.dp,

libraries/dateformatter/impl/src/main/kotlin/io/element/android/libraries/dateformatter/impl/previews/PreviewStringProvider.kt

@@ -27,4 +27,9 @@ class PreviewStringProvider(
     override fun getQuantityString(@PluralsRes resId: Int, quantity: Int, vararg formatArgs: Any?): String {
         return resources.getQuantityString(resId, quantity, *formatArgs)
     }
+
+    override fun getSimpleQuantityString(resIdForOne: Int, resIdForOthers: Int, quantity: Int, vararg formatArgs: Any?): String {
+        val resId = if (quantity == 1) resIdForOne else resIdForOthers
+        return resources.getString(resId, *formatArgs)
+    }
 }

libraries/ui-utils/src/main/kotlin/io/element/android/libraries/ui/utils/strings/Plurals.kt

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.ui.utils.strings
+
+import androidx.annotation.StringRes
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.ReadOnlyComposable
+import androidx.compose.ui.res.stringResource
+
+/**
+ * Similar to [androidx.compose.ui.res.pluralStringResource] but with separate resource ids for singular and plural values.
+ * Useful when we want to use different strings for singular and plural forms but not mentioning the actual quantity in the string.
+ * In this case, we cannot use getQuantityString, because some locales have more than two plural forms, and require the quantity to
+ * be part of the resulting strings.
+ * @param resIdForOne Resource id for the case when [count] is 1.
+ * @param resIdForOthers Resource id for the other cases ([count] is not 1).
+ * @param count The quantity to determine whether to use singular or plural form. Must be greater than or equal to 1.
+ * @param formatArgs The format arguments that will be used for substitution in the resulting string. Will be applied to either
+ * the singular or plural string depending on the quantity.
+ * @return The localized string corresponding to the given quantity.
+ */
+@Composable
+@ReadOnlyComposable
+fun simplePluralStringResource(
+    @StringRes resIdForOne: Int,
+    @StringRes resIdForOthers: Int,
+    count: Int,
+    vararg formatArgs: Any,
+): String {
+    val resId = if (count == 1) resIdForOne else resIdForOthers
+    return stringResource(resId, *formatArgs)
+}

services/toolbox/api/src/main/kotlin/io/element/android/services/toolbox/api/strings/StringProvider.kt

@@ -34,5 +34,30 @@ interface StringProvider {
      * stripped of styled text information.
      */
     fun getString(@StringRes resId: Int, vararg formatArgs: Any?): String
+
+    /**
+     * Returns a localized formatted string from the application's package's
+     * default string table, substituting the format arguments as defined in
+     * [java.util.Formatter] and [java.lang.String.format], based on the given quantity.
+     */
     fun getQuantityString(@PluralsRes resId: Int, quantity: Int, vararg formatArgs: Any?): String
+
+    /**
+     * Similar to [getQuantityString] but with separate resource ids for singular and plural values.
+     * Useful when we want to use different strings for singular and plural forms but not mentioning the actual quantity in the string.
+     * In this case, we cannot use getQuantityString, because some locales have more than two plural forms, and require the quantity to
+     * be part of the resulting strings.
+     * @param resIdForOne Resource id for the case when [quantity] is 1.
+     * @param resIdForOthers Resource id for the other cases ([quantity] is not 1).
+     * @param quantity The quantity to determine whether to use singular or plural form. Must be greater than or equal to 1.
+     * @param formatArgs The format arguments that will be used for substitution in the resulting string. Will be applied to either
+     * the singular or plural string depending on the quantity.
+     * @return The localized string corresponding to the given quantity.
+     */
+    fun getSimpleQuantityString(
+        @StringRes resIdForOne: Int,
+        @StringRes resIdForOthers: Int,
+        quantity: Int,
+        vararg formatArgs: Any?,
+    ): String
 }

services/toolbox/impl/src/main/kotlin/io/element/android/services/toolbox/impl/strings/AndroidStringProvider.kt

@@ -28,4 +28,14 @@ class AndroidStringProvider(private val resources: Resources) : StringProvider {
     override fun getQuantityString(@PluralsRes resId: Int, quantity: Int, vararg formatArgs: Any?): String {
         return resources.getQuantityString(resId, quantity, *formatArgs)
     }
+
+    override fun getSimpleQuantityString(
+        resIdForOne: Int,
+        resIdForOthers: Int,
+        quantity: Int,
+        vararg formatArgs: Any?,
+    ): String {
+        val resId = if (quantity == 1) resIdForOne else resIdForOthers
+        return resources.getString(resId, *formatArgs)
+    }
 }

services/toolbox/test/src/main/kotlin/io/element/android/services/toolbox/test/strings/FakeStringProvider.kt

@@ -28,4 +28,14 @@ class FakeStringProvider(
         lastResIdParam = resId
         return defaultResult + " ($quantity) " + formatArgs.joinToString()
     }
+
+    override fun getSimpleQuantityString(
+        resIdForOne: Int,
+        resIdForOthers: Int,
+        quantity: Int,
+        vararg formatArgs: Any?,
+    ): String {
+        lastResIdParam = if (quantity == 1) resIdForOne else resIdForOthers
+        return defaultResult + " ($quantity) " + formatArgs.joinToString()
+    }
 }

tests/testutils/src/main/kotlin/io/element/android/tests/testutils/InstrumentationStringProvider.kt

@@ -24,4 +24,9 @@ class InstrumentationStringProvider : StringProvider {
     override fun getQuantityString(resId: Int, quantity: Int, vararg formatArgs: Any?): String {
         return resource.getQuantityString(resId, quantity, *formatArgs)
     }
+
+    override fun getSimpleQuantityString(resIdForOne: Int, resIdForOthers: Int, quantity: Int, vararg formatArgs: Any?): String {
+        val resId = if (quantity == 1) resIdForOne else resIdForOthers
+        return resource.getString(resId, *formatArgs)
+    }
 }