我正在开发一个应用程序,它提供富文本编辑功能,具有浅色和深色主题。当切换到深色主题时,我无法查看焦点文本,并且在切换焦点时任何文本颜色都会丢失。我创建了一个简单的文本框,它有两个富文本框,一个将所选文本更改为红色的按钮,以及两个用于在明暗主题之间切换的按钮。我正在对丰富的编辑框应用样式,但看起来忽略了 x:Key="TextControlForegroundFocused",或者可能在应用主题 cahnges 之前计算 SystemBaseHighColor。
XAML
<Page.Resources>
<!-- RichEditBox Styling-->
<SolidColorBrush x:Key="TextControlForegroundFocused" Color="{ThemeResource SystemBaseHighColor}"/>
<SolidColorBrush x:Key="TextControlForegroundDisabled" Color="{ThemeResource SystemBaseHighColor}"/>
<SolidColorBrush x:Key="TextControlBackgroundFocused" Color="{ThemeResource TextControlForeground}"/>
</Page.Resources>
<StackPanel Name="_Root" >
<StackPanel Orientation="Horizontal" >
<Button Content="Red" Click="OnRed"/>
<Button Content="Dark Theme" Click="OnDark"/>
<Button Content="Light Theme" Click="OnLight"/>
</StackPanel>
<StackPanel Orientation="Horizontal">
<RichEditBox Name="RichEditor1" Style="{ThemeResource EditBoxStyle}" Width="250" Height="200"/>
<RichEditBox Name="RichEditor2" Style="{ThemeResource EditBoxStyle}" Width="250" Height="200"/>
</StackPanel>
</StackPanel>
C#
private void OnRed(object sender, RoutedEventArgs e)
{
RichEditor1.Document.Selection.CharacterFormat.ForegroundColor = Colors.Red;
RichEditor2.Document.Selection.CharacterFormat.ForegroundColor = Colors.Red;
}
private void OnDark(object sender, RoutedEventArgs e)
{
_Root.RequestedTheme = ElementTheme.Dark;
_Root.Background = new SolidColorBrush(Colors.Black);
}
private void OnLight(object sender, RoutedEventArgs e)
{
_Root.RequestedTheme = ElementTheme.Light;
_Root.Background = new SolidColorBrush(Colors.White);
}
关于如何使这项工作的任何建议?