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MainPage.xaml.cs
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MainPage.xaml.cs
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.ApplicationModel.Core;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI;
using Windows.UI.ViewManagement;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
// The Blank Page item template is documented at https://go.microsoft.com/fwlink/?LinkId=402352&clcid=0x409
namespace TemplateApp
{
/// <summary>
/// An empty page that can be used on its own or navigated to within a Frame.
/// </summary>
public sealed partial class MainPage : Page
{
private CoreApplicationViewTitleBar coreTitleBar;
public MainPage()
{
this.InitializeComponent();
coreTitleBar = CoreApplication.GetCurrentView().TitleBar;
Microsoft.UI.Xaml.Controls.BackdropMaterial.SetApplyToRootOrPageBackground(this, true);
coreTitleBar.ExtendViewIntoTitleBar = true;
ApplicationViewTitleBar formattableTitleBar = ApplicationView.GetForCurrentView().TitleBar;
formattableTitleBar.ButtonBackgroundColor = Colors.Transparent;
formattableTitleBar.ButtonInactiveBackgroundColor = Colors.Transparent;
{
switch (this.ActualTheme)
{
case ElementTheme.Dark:
formattableTitleBar.ButtonForegroundColor = Colors.White;
break;
case ElementTheme.Light:
formattableTitleBar.ButtonForegroundColor = Colors.Black;
break;
case ElementTheme.Default:
if (App.Current.RequestedTheme == ApplicationTheme.Light)
{
formattableTitleBar.ButtonForegroundColor = Colors.Black;
}
else
{
formattableTitleBar.ButtonForegroundColor = Colors.White;
}
break;
default:
break;
}
}
}
private void NavView_BackRequested(Microsoft.UI.Xaml.Controls.NavigationView sender, Microsoft.UI.Xaml.Controls.NavigationViewBackRequestedEventArgs args)
{
// handle back button click. Use this for navigating backwards in a frame, for example.
}
private void NavView_ItemInvoked(Microsoft.UI.Xaml.Controls.NavigationView sender, Microsoft.UI.Xaml.Controls.NavigationViewItemInvokedEventArgs args)
{
// Use this to navigate through pages in a frame or start an action.
}
}
}