Question

我想，这是一个错误。

要重现，请在Windows Phone上以黑暗主题启动应用程序。启动应用程序后，将主题更改为浅。然后点击＆＃34;启用＆＃34;按钮。你会看到＆＃34; Sample＆＃34;按钮消失。因为它的主题仍然是黑暗的。

<Page x:Class="ButtonThemeTest.MainPage"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
      Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
      mc:Ignorable="d">

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
        </Grid.RowDefinitions>
        <Button x:Name="ButtonTest"
                Content="Sample"
                IsEnabled="False" />
        <Button Grid.Row="1"
                Click="ButtonBase_OnClick"
                Content="Enable" />
        <Button Grid.Row="2"
                Click="ButtonBase_OnClick2"
                Content="Disable" />
    </Grid>
</Page>

代码背后：

private void ButtonBase_OnClick(object sender, RoutedEventArgs e)
{
    ButtonTest.IsEnabled = true;
}

private void ButtonBase_OnClick2(object sender, RoutedEventArgs e)
{
    ButtonTest.IsEnabled = false;
}

Answer 1

我找到的唯一解决方案是从generic.xaml获取Button样式并将Storyboard添加到Normal视觉状态，如下所示：

<Storyboard>
    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                   Storyboard.TargetProperty="Foreground">
        <DiscreteObjectKeyFrame KeyTime="0"
                                Value="{ThemeResource PhoneForegroundBrush}" />
    </ObjectAnimationUsingKeyFrames>
    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                   Storyboard.TargetProperty="BorderBrush">
        <DiscreteObjectKeyFrame KeyTime="0"
                                Value="{ThemeResource PhoneForegroundBrush}" />
    </ObjectAnimationUsingKeyFrames>
    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                   Storyboard.TargetProperty="Background">
        <DiscreteObjectKeyFrame KeyTime="0"
                                Value="{ThemeResource PhoneBackgroundBrush}" />
    </ObjectAnimationUsingKeyFrames>
</Storyboard>

Answer 2

使用Visual Studio Blend将样式设置为按钮。

主题更改不会影响Windows Phone 8.1上的禁用控件主题

2 个答案: