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Setting the Culture Info on the App Level

Updated over 6 months ago

Environment

Version	Product	Author
6.7.0	Telerik UI for .NET MAUI	Dobrinka Yordanova

You can override the device culture settings by explicitly setting the culture info on the app level. For example, even though the device regional and language preferences might be set to Spanish, you can choose to always apply German localization to your app instead.

Solution

The solution applies for each platform inside the Application/Platforms folder:

Android

On Android—Inside the MainActivity class, implement a SetLocale() method to change the culture info:

public class MainActivity : MauiAppCompatActivity
{
    protected override void OnCreate(Bundle? savedInstanceState)
    {
        base.OnCreate(savedInstanceState);

        this.SetLocale();

    }
    void SetLocale()
    {

        CultureInfo ci = new CultureInfo("en-US");

        Thread.CurrentThread.CurrentCulture = ci;
        Thread.CurrentThread.CurrentUICulture = ci;

        Console.WriteLine("CurrentCulture set: " + ci.Name);
    }
}

iOS and MacCatalyst

On iOS or MacCatalyst—Inside the AppDelegate.cs file override the FinishedLaunching method:

public class AppDelegate : MauiUIApplicationDelegate
{
    protected override MauiApp CreateMauiApp() => MauiProgram.CreateMauiApp();

    public override bool FinishedLaunching(UIApplication application, NSDictionary launchOptions)
    {
        this.SetLocale();
        return base.FinishedLaunching(application, launchOptions);
    }

    private void SetLocale()
    {
        CultureInfo ci = new CultureInfo("en-US");

        Thread.CurrentThread.CurrentCulture = ci;
        Thread.CurrentThread.CurrentUICulture = ci;
    }
}

WinUI

On WinUI—Inside the App.xaml.cs file, define the CurrentCulture:

public partial class App : MauiWinUIApplication
{
    /// <summary>
    /// Initializes the singleton application object.  This is the first line of authored code
    /// executed, and as such is the logical equivalent of main() or WinMain().
    /// </summary>
    public App()
    {
        this.InitializeComponent();
        CultureInfo.CurrentCulture = new CultureInfo("ja-JP", false);
    }

    protected override MauiApp CreateMauiApp() => MauiProgram.CreateMauiApp();
}