Create locales_config.xml for per-app language

uhabits-android/src/main/AndroidManifest.xml

@@ -31,6 +31,7 @@
         android:backupAgent=".HabitsBackupAgent"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/main_activity_title"
+        android:localeConfig="@xml/locales_config"
         android:supportsRtl="true"
         android:theme="@style/AppBaseTheme">
 

uhabits-android/src/main/res/xml/locales_config.xml

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<locale-config xmlns:android="http://schemas.android.com/apk/res/android">
+    <locale android:name="en" /> <!-- English -->
+    <locale android:name="af-ZA" /> <!-- Afrikaans -->
+    <locale android:name="ar-SA" /> <!-- Arabic -->
+    <locale android:name="bg-BG" /> <!-- Bulgarian -->
+    <locale android:name="ca-ES" /> <!-- Catalan -->
+    <locale android:name="cs-CZ" /> <!-- Czech -->
+    <locale android:name="da-DK" /> <!-- Danish -->
+    <locale android:name="de-DE" /> <!-- German -->
+    <locale android:name="el-GR" /> <!-- Greek -->
+    <locale android:name="eo-UY" /> <!-- Esperanto -->
+    <locale android:name="es-ES" /> <!-- Spanish -->
+    <locale android:name="eu-ES" /> <!-- Basque -->
+    <locale android:name="fa-IR" /> <!-- Farsi -->
+    <locale android:name="fi-FI" /> <!-- Finnish -->
+    <locale android:name="fr-FR" /> <!-- French -->
+    <locale android:name="hi-IN" /> <!-- Hindi -->
+    <locale android:name="hr-HR" /> <!-- Croatian -->
+    <locale android:name="hu-HU" /> <!-- Hungarian -->
+    <locale android:name="hy-AM" /> <!-- Armenian -->
+    <locale android:name="in-ID" /> <!-- Indonesian -->
+    <locale android:name="it-IT" /> <!-- Italian -->
+    <locale android:name="iw-IL" /> <!-- Hebrew -->
+    <locale android:name="ja-JP" /> <!-- Japanese -->
+    <locale android:name="ko-KR" /> <!-- Korean -->
+    <locale android:name="nl-NL" /> <!-- Dutch -->
+    <locale android:name="no-NO" /> <!-- Norwegian -->
+    <locale android:name="pl-PL" /> <!-- Polish -->
+    <locale android:name="pt-BR" /> <!-- Portuguese (Brazil) -->
+    <locale android:name="pt-PT" /> <!-- Portuguese (Portugal) -->
+    <locale android:name="ro-RO" /> <!-- Romanian -->
+    <locale android:name="ru-RU" /> <!-- Russian -->
+    <locale android:name="sk-SK" /> <!-- Slovak -->
+    <locale android:name="sl-SL" /> <!-- Slovenian -->
+    <locale android:name="sr-CS" /> <!-- Serbian (Latin) -->
+    <locale android:name="sr-SP" /> <!-- Serbian (Cyrillic) -->
+    <locale android:name="sv-SE" /> <!-- Swedish -->
+    <locale android:name="ta-IN" /> <!-- Tamil -->
+    <locale android:name="te-IN" /> <!-- Telugu -->
+    <locale android:name="tr-TR" /> <!-- Turkish -->
+    <locale android:name="ug-CN" /> <!-- Uyghur -->
+    <locale android:name="uk-UA" /> <!-- Ukrainian -->
+    <locale android:name="vi-VN" /> <!-- Vietnamese -->
+    <locale android:name="zh-CN" /> <!-- Chinese (Simplified) -->
+    <locale android:name="zh-TW" /> <!-- Chinese (Traditional) -->
+</locale-config>