void UpdateBottomBar()
{
_BottomBar.Children.Clear();
_BottomBar.ColumnDefinitions.Clear();
var items = ShellItemController?.GetItems();
if (items?.Count > 1)
{
for (int i = 0; i < items.Count; i++)
{
var section = items[i];
var btn = new AppBarButton()
{
Label = section.Title,
Width = double.NaN,
MinWidth = 68,
MaxWidth = 200
};
switch (section.Icon)
{
case FileImageSource fileImageSource:
btn.Icon = new BitmapIcon()
{
UriSource = new Uri("ms-appx:///" + fileImageSource.File)
};
break;
case FontImageSource fontImageSource:
var icon = new FontIcon()
{
Glyph = fontImageSource.Glyph,
FontFamily = new FontFamily(fontImageSource.FontFamily),
FontSize = fontImageSource.Size,
};
if (!fontImageSource.Color.IsDefault)
{
icon.Foreground = fontImageSource.Color.ToBrush();
}
btn.Icon = icon;
break;
}
btn.Click += (s, e) => OnShellSectionClicked(section);
_BottomBar.ColumnDefinitions.Add(new UwpColumnDefinition()
{
Width = WinUIHelpers.CreateGridLength(1, UwpGridUnitType.Star)
});
SetColumn(btn, i);
_BottomBar.Children.Add(btn);
}
}
}
public ShellItemRenderer(ShellRenderer shellContext)
{
Xamarin.Forms.Shell.VerifyShellUWPFlagEnabled(nameof(ShellItemRenderer));
_ = shellContext ?? throw new ArgumentNullException(nameof(shellContext));
ShellContext = shellContext;
RowDefinitions.Add(new UwpRowDefinition()
{
Height = WinUIHelpers.CreateGridLength(1, UwpGridUnitType.Auto)
});
RowDefinitions.Add(new UwpRowDefinition()
{
Height = WinUIHelpers.CreateGridLength(1, UwpGridUnitType.Star)
});
RowDefinitions.Add(new UwpRowDefinition()
{
Height = WinUIHelpers.CreateGridLength(1, UwpGridUnitType.Auto)
});
_Title = new TextBlock()
{
Style = Resources["SubtitleTextBlockStyle"] as UwpStyle,
VerticalAlignment = VerticalAlignment.Center,
TextTrimming = TextTrimming.CharacterEllipsis,
TextWrapping = TextWrapping.NoWrap
};
_HeaderArea = new UwpGrid()
{
Height = 40, Padding = WinUIHelpers.CreateThickness(10, 0, 10, 0)
};
_HeaderArea.ColumnDefinitions.Add(new UwpColumnDefinition()
{
Width = WinUIHelpers.CreateGridLength(1, UwpGridUnitType.Star)
});
_HeaderArea.ColumnDefinitions.Add(new UwpColumnDefinition()
{
Width = WinUIHelpers.CreateGridLength(1, UwpGridUnitType.Auto)
});
_HeaderArea.Children.Add(_Title);
Children.Add(_HeaderArea);
_Toolbar = new ItemsControl()
{
ItemTemplate = UwpApplication.Current.Resources["ShellToolbarItemTemplate"] as UwpDataTemplate,
ItemsPanel = UwpApplication.Current.Resources["ShellToolbarItemsPanelTemplate"] as ItemsPanelTemplate,
};
SetColumn(_Toolbar, 1);
_HeaderArea.Children.Add(_Toolbar);
SectionRenderer = shellContext.CreateShellSectionRenderer();
SetRow(SectionRenderer, 1);
Children.Add(SectionRenderer);
_BottomBar = new UwpGrid()
{
HorizontalAlignment = HorizontalAlignment.Center
};
_BottomBarArea = new Border()
{
Child = _BottomBar
};
SetRow(_BottomBarArea, 2);
Children.Add(_BottomBarArea);
}
