App.xaml.cs



using System.ComponentModel;

namespace PracticaPalabrasMAUI;

public partial class App : Application
{

    public static Page CurrentPage { get; set; }
    public static App CurrentApp { get; set; }

    private ResourceDictionary AntDic { get; set; }

    public event EventHandler langChanged;
    public App()
	{
        CurrentApp = this;

        InitializeComponent();

        UpdateLang();

        MainPage = new AppShell();

        RequestedThemeChanged += (s, e) => { Current.UserAppTheme = Theme; };
        Current.UserAppTheme = Theme;

    }

    public AppTheme Theme
    {
        get =>Enum.Parse<AppTheme>( Preferences.Get(nameof(Theme), AppTheme.Unspecified.ToString()));
        set
        {
            Preferences.Set(nameof(Theme), value.ToString());
            Current.UserAppTheme = value;
        }
    }

    public ResourceDictionary Colors=> Current.Resources.MergedDictionaries.First();





    public void UpdateLang()
    {
        ResourceDictionary dic;

        switch(Language.LangCode)
        {
            case "es-ES":
                dic =new es_ES();
                break;
            case "es-CA":
                dic = new es_CA();
                break;
            default:
                dic = new en_UK();
                break;
        }
        if(!Equals(AntDic,dic) && !Equals(AntDic, null))
        {
            Current.Resources.MergedDictionaries.Remove(AntDic);
        }
        Current.Resources.MergedDictionaries.Add(dic);
        AntDic = dic;
        if(langChanged != null)
        {
            langChanged(this, new EventArgs());
        }
       
     
    }
}