How to hide top part of hamburger menu in the XAML Navigation Sample? - xaml

Question

In the Windows UWP XAML Navigation sample from git hub, how can you hide the very top part of the hamburger menu flyout that obscures the section title?
Currently it renders like this so there is a strip that hides the section title of the page.
How can I get it to look like this? So the Section title is not obscured when I open the menu.
I tried playing with the z-index of the page header, but it had no effect. The hamburger menu always renders over top everything else.

Answer 1

Just check the Microsoft weather app for windows 10, I think it's more like there is a region out of the SplitView control, which is to hold like "hamburger button", "back button", "commandbar", and "AutoSuggestBox".
Here I wrote a sample:
<Page.Resources>
<local:BoolToVisiableConverter x:Key="visiblecvt" />
<local:BackgroundConverter x:Key="backgroundcvt" />
</Page.Resources>
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="15*" />
</Grid.RowDefinitions>
<Grid Grid.Row="0" Background="{Binding ElementName=listmenu, Path=SelectedItem.MenuText, Converter={StaticResource backgroundcvt}}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="50" />
<ColumnDefinition Width="50" />
<ColumnDefinition Width="100" />
<ColumnDefinition Width="3*" />
<ColumnDefinition Width="2*" />
</Grid.ColumnDefinitions>
<Button BorderThickness="0" Background="LightBlue" Click="Button_Click_Pane" Grid.Column="0" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
<Button.Content>
<TextBlock Text="" FontFamily="Segoe MDL2 Assets" FontSize="24" />
</Button.Content>
</Button>
<Button BorderThickness="0" Background="Transparent" Click="Button_Click_Back" Grid.Column="1" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
<Button.Content>
<TextBlock Text="" FontFamily="Segoe MDL2 Assets" FontSize="24" />
</Button.Content>
</Button>
<TextBlock FontSize="24" Grid.Column="2" x:Name="title" VerticalAlignment="Center" Text="{Binding ElementName=listmenu, Path=SelectedItem.MenuText}" />
<CommandBar Grid.Column="3" Background="Transparent" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Visibility="{Binding ElementName=title, Path=Text, Converter={StaticResource visiblecvt}}">
<CommandBar.Content>
<Grid />
</CommandBar.Content>
<AppBarButton Icon="Accept" FontSize="24" Label="Accept" />
<AppBarButton Icon="Cancel" FontSize="24" Label="Cancel" />
</CommandBar>
<AutoSuggestBox Grid.Column="4" VerticalAlignment="Center" HorizontalAlignment="Stretch" IsSuggestionListOpen="True" />
</Grid>
<SplitView Grid.Row="1" x:Name="RootSpiltView" OpenPaneLength="300" CompactPaneLength="50" DisplayMode="CompactOverlay">
<SplitView.Pane>
<ListView x:Name="listmenu" ItemsSource="{x:Bind menu}" SelectionChanged="ListView_SelectionChanged">
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding MenuIcon}" FontFamily="Segoe MDL2 Assets" FontSize="24" VerticalAlignment="Center" />
<TextBlock Text="{Binding MenuText}" Margin="15" VerticalAlignment="Center" />
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</SplitView.Pane>
<SplitView.Content>
<Frame x:Name="splitviewContent" Navigated="splitviewContent_Navigated" />
</SplitView.Content>
</SplitView>
</Grid>
code behind:
private ObservableCollection<NavigationItem> menu = new ObservableCollection<NavigationItem>();
public MainPage()
{
this.InitializeComponent();
this.Loaded += MainPage_Loaded;
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
menu.Clear();
menu.Add(new NavigationItem { PageLink = typeof(Page1), MenuText = typeof(Page1).Name, MenuIcon = "\xE715" });
menu.Add(new NavigationItem { PageLink = typeof(Page2), MenuText = typeof(Page2).Name, MenuIcon = "\xE716" });
menu.Add(new NavigationItem { PageLink = typeof(Page3), MenuText = typeof(Page3).Name, MenuIcon = "\xE722" });
menu.Add(new NavigationItem { PageLink = typeof(Page4), MenuText = typeof(Page4).Name, MenuIcon = "\xE72D" });
}
private void MainPage_Loaded(object sender, RoutedEventArgs e)
{
listmenu.SelectedIndex = 0;
}
private void Button_Click_Pane(object sender, RoutedEventArgs e)
{
this.RootSpiltView.IsPaneOpen = !this.RootSpiltView.IsPaneOpen;
}
private void Button_Click_Back(object sender, RoutedEventArgs e)
{
if (splitviewContent.CanGoBack)
{
splitviewContent.GoBack();
}
}
private void ListView_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
var naviitem = listmenu.SelectedItem as NavigationItem;
splitviewContent.Navigate(naviitem.PageLink);
}
private void splitviewContent_Navigated(object sender, NavigationEventArgs e)
{
var page = splitviewContent.CurrentSourcePageType.Name;
switch (page)
{
case "Page1":
listmenu.SelectedIndex = 0;
break;
case "Page2":
listmenu.SelectedIndex = 1;
break;
case "Page3":
listmenu.SelectedIndex = 2;
break;
case "Page4":
listmenu.SelectedIndex = 3;
break;
}
}
The NavigationItem class and two converters:
public class NavigationItem
{
public string MenuIcon { get; set; }
public string MenuText { get; set; }
public Type PageLink { get; set; }
}
public class BoolToVisiableConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, string language)
{
var text = (string)value;
if (text == "Page1")
{
return Visibility.Visible;
}
return Visibility.Collapsed;
}
public object ConvertBack(object value, Type targetType, object parameter, string language)
{
throw new NotImplementedException();
}
}
public class BackgroundConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, string language)
{
var text = (string)value;
if (text == "Page1")
{
return "#FFFFC0CB";
}
return "#00000000";
}
public object ConvertBack(object value, Type targetType, object parameter, string language)
{
throw new NotImplementedException();
}
}
I didn't follow to the official XAML Navigation sample to wrote this code, here my sample renders like this:
#Henk Holterman's comment also makes sense. In the official sample, the title is part of the page content. For different page, the title may have different size. But in Weather app, the title is separated from the content, so it will be easy to achieve.