add structure

lib/widget/localization/transalation.dart

@@ -0,0 +1,27 @@
+import 'dart:ui';
+
+typedef void LocaleChangeCallback(Locale locale);
+
+class Translation {
+  static final Translation _translation = Translation._internal();
+
+  factory Translation() {
+    return _translation;
+  }
+
+  Translation._internal();
+
+  final List<String> supportedLanguages = [
+    "English",
+    "မြန်မာ ",
+  ];
+
+  final List<String> supportedLanguagesCodes = ["en", "mu"];
+
+  //returns the list of supported Locales
+  Iterable<Locale> supportedLocales() =>
+      supportedLanguagesCodes.map<Locale>((language) => Locale(language, ""));
+
+  //function to be invoked when changing the language
+  LocaleChangeCallback onLocaleChanged;
+}