Localizations.override override the whole app

[EdwynZN]

Perhaps this is a problem with flutter itself and not this awesome package but maybe you can help me narrow the problem so I can open the issue in the Flutter project instead (There is already a similar problem in Flutter issues flutter/flutter#33300)

When using AboutListTile() > Opening Dialog > See Licenses > Tap on any License the Localization becomes English for the whole app, Reading the code they use Localizations.override(locale: const Locale('en', 'US'), ...) so the license page load only in English, the problem is that Localizations.override should only override that page, but it changes the whole app language to English

void main() {
  runApp(const App());
}

// Run the app in other language (Spanish) and after opening licenses and visualizes one

class Appextends StatelessWidget {
  const GameShop({Key key}) : super(key: key);

  @override
  Widget build(BuildContext contexth) {
    return MaterialApp(
      localizationsDelegates: [
        S.delegate,
        GlobalMaterialLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
        GlobalCupertinoLocalizations.delegate,
      ],
      supportedLocales: S.delegate.supportedLocales,
      home: Builder(
          builder: (context) => Scaffold(
              body: AboutListTile(
                  applicationName: S.of(context).example_text
              ),
          )
      ),
    );
  }
}

[√] Flutter (Channel stable, 1.22.5, on Microsoft Windows [Versión 10.0.18363.1316], locale es-MX)
    • Flutter version 1.22.5 at E:\Programs\flutter
    • Framework revision 7891006299 (5 weeks ago), 2020-12-10 11:54:40 -0800
    • Engine revision ae90085a84
    • Dart version 2.10.4

 
[√] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
    • Android SDK at C:\Users\dartz\AppData\Local\Android\Sdk
    • Platform android-30, build-tools 30.0.2
    • ANDROID_HOME = C:\Users\dartz\AppData\Local\Android\Sdk
    • Java binary at: E:\Programs\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
    • All Android licenses accepted.

[!] Android Studio (version 4.1.0)
    • Android Studio at E:\Programs\Android\Android Studio
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)

[aleksakrstic]

Hi @EdwynZN
This is a known problem. Linked issues from IDE plugins:

• support multiple localizations at the same time flutter-intl-intellij#26

PR is created #18 but I think such changes should be considered for the next major version

[narumi147]

At least, we should not assign the new locale in S.load, this is called in each Localizations.override. Let developer to choose when to assign new locale.