davidortinau/maui-skills/maui-localization

<!-- ✅ Always set in .csproj -->
<PropertyGroup>
  <NeutralLanguage>en-US</NeutralLanguage>
</PropertyGroup>
 
<!-- ❌ Missing this causes ResourceManager to return null at runtime -->

<!-- Platforms/iOS/Info.plist AND Platforms/MacCatalyst/Info.plist -->
<key>CFBundleLocalizations</key>
<array>
  <string>en</string>
  <string>es</string>
  <string>fr</string>
</array>

<!-- Platforms/Windows/Package.appxmanifest -->
<Resources>
  <Resource Language="en-US" />
  <Resource Language="es" />
  <Resource Language="fr-FR" />
</Resources>

<!-- ❌ Won't update when language changes at runtime -->
<Label Text="{x:Static resx:AppResources.WelcomeMessage}" />
 
<!-- ✅ Updates dynamically via INotifyPropertyChanged -->
<Label Text="{Binding [WelcomeMessage], Source={x:Static local:LocalizationResourceManager.Instance}}" />

// ✅ Complete culture switch
var culture = new CultureInfo("es");
CultureInfo.CurrentUICulture = culture;  // resource lookup
CultureInfo.CurrentCulture = culture;     // dates/numbers
AppResources.Culture = culture;           // ResourceManager
 
// ❌ Only sets UI culture — dates/numbers stay in old culture
CultureInfo.CurrentUICulture = new CultureInfo("es");

<!-- ✅ Page-level — children inherit -->
<ContentPage FlowDirection="RightToLeft">
  <StackLayout FlowDirection="MatchParent" />
</ContentPage>
 
<!-- ❌ Only on child — parent still LTR, layout breaks -->
<ContentPage>
  <StackLayout FlowDirection="RightToLeft" />
</ContentPage>

<CoreCompileDependsOn>PrepareResources;$(CoreCompileDependsOn)</CoreCompileDependsOn>