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public partial class App : PrismApplication
{
        public App(IPlatformInitializer initializer = null) : base(initializer) { }

        protected override void OnInitialized()
        {
            InitializeComponent();

            NavigationService.NavigateAsync(new Uri($"{Screens.AbsoluteURI}/{Screens.MoviesHomeTabbedPage}/{Screens.ShowingNowNavigationPage}/{Screens.ShowingNow}", UriKind.Absolute));
        }

LuisAlbertoPenaNunez

await _navigationService.NavigateAsync($"{NavigationPageYouAreRightNow}/{ScreenYouAreInRightNow}/{ScreenYouWantToGoTo}", navigationParameters);

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protected override void OnInitialized()
{
  InitializeComponent();

  NavigationService.NavigateAsync(new Uri($"{Screens.AbsoluteURI}/{Screens.MoviesHomeTabbedPage}/{Screens.ShowingNowNavigationPage}/{Screens.ShowingNow}", UriKind.Absolute));
}

LuisAlbertoPenaNunez

public partial class App : PrismApplication
{
        public App(IPlatformInitializer initializer = null) : base(initializer) { }

        protected override void OnInitialized()
        {
            InitializeComponent();

            var tabs = CreateTabs();

LuisAlbertoPenaNunez

public class Screens
{
        public readonly static string MoviesHomeTabbedPage = nameof(MoviesHomeTabbedPage);

        public readonly static string ShowingNowNavigationPage = nameof(ShowingNowNavigationPage);

        public readonly static string CategoriesNavigationPage = nameof(CategoriesNavigationPage);

        public readonly static string AboutMeNavigationPage = nameof(AboutMeNavigationPage);

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var tabs = $"{Screens.MoviesHomeTabbedPage}?{showingNowTab}&{categoriesTab}&{aboutMeTab}"

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var showingNowTab = $"{KnownNavigationParameters.CreateTab}={Screens.ShowingNowNavigationPage}|{Screens.ShowingNow}";

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private async void OnMovieSelected(Movie movie)
{
      if (movie == null)
          return;

      var navigationParameters = new NavigationParameters();
      navigationParameters.Add(NavigationParametersKey.SelectedMovieId, movie.Id);

      await _navigationService.NavigateAsync($"{nameof(MovieDetails)}", navigationParameters);
}

LuisAlbertoPenaNunez

private async void OnMovieSelected(Movie movie)
{
      if (movie == null)
          return;

      var navigationParameters = new NavigationParameters();
      navigationParameters.Add(NavigationParametersKey.SelectedMovieId, movie.Id);

      await _navigationService.NavigateAsync($"{nameof(MovieDetails)}", navigationParameters);
}

LuisAlbertoPenaNunez

var showingNowTab = $"{KnownNavigationParameters.CreateTab}={nameof(ShowingNow)}";