Windows phone 8.1 在Windows Phone 8.1中更改按下按钮时的不透明度

我有一个Windows Phone 8.1 RT应用程序

我的页面上有一个图像按钮

我想要的是，当我按下这个按钮时，我要么将边框设置为黄色，要么/并更改图像

我正在努力解决如何在故事板中设置这一点

这是我的标记（我删除了与网格无关的内容）：

还有我的按钮：

        <Button BorderThickness="0" BorderBrush="Black" Name="btnDel" Grid.Row="4" Grid.Column="2" Width="75" Height="75" HorizontalAlignment="Center" >
            <Button.Background>  
                <ImageBrush ImageSource="ms-appx:///Images/del.png" Stretch="Uniform"/>
            </Button.Background>
        </Button>

---

谢谢

您需要在

控制模板中命名要设置动画的元素，然后在
情节提要中命名。TargetName
属性（这里我使用根
网格
，创造性地命名为根）：

MainPage.Xaml

<Page
    x:Class="StyleTest.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:StyleTest"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
  <Page.Resources>
    <Style TargetType="local:MyButton">
      <Setter Property="Template">
        <Setter.Value>
          <ControlTemplate TargetType="local:MyButton">
            <Grid x:Name="Root" Background="Transparent" Margin="0,9.6">
              <VisualStateManager.VisualStateGroups>
                <VisualStateGroup x:Name="CommonStates">
                  <VisualState x:Name="Normal"/>
                  <VisualState x:Name="PointerOver"/>
                  <VisualState x:Name="Pressed">
                    <Storyboard>
                      <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Image" Storyboard.TargetProperty="Visibility">
                        <DiscreteObjectKeyFrame KeyTime="0" Value="Visible"/>
                      </ObjectAnimationUsingKeyFrames>
                    </Storyboard>
                  </VisualState>
                  <VisualState x:Name="Disabled"/>
                </VisualStateGroup>
              </VisualStateManager.VisualStateGroups>
              <Border x:Name="Image" Background="{TemplateBinding PressedContent}" Visibility="Collapsed"/>
              <Border x:Name="Border" BorderBrush="White" BorderThickness="2.4">
                <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
              </Border>
            </Grid>
          </ControlTemplate>
        </Setter.Value>
      </Setter>
    </Style>
  </Page.Resources>

  <StackPanel>
    <local:MyButton Content="change bg!">
      <local:MyButton.PressedContent>
        <ImageBrush ImageSource="/Assets/Logo.png"/>
      </local:MyButton.PressedContent>
    </local:MyButton>
  </StackPanel>
</Page>



这里的关键是
MyButton
控件有一个名为
PressedContent
的新属性，
ControlTemplate
使用
TemplateBinding
将其添加到按钮的视觉外观中。动画只需打开和关闭
可见性。
您有“Storyboard.TargetName=”Opacity“，这是一个错误，因为您没有任何名为“Opacity”的元素——您需要在控件模板中定位具有x:NameHI的对象，感谢您提供的信息。愚蠢的错误lol。如果我想用这种风格来定位我在这个页面上的所有按钮，那么我假设我没有设置TargetName属性？如果这是正确的，那么我已经删除了它，但我仍然得到一个错误…哇，多么全面的答案！谢谢
<Page.Resources>
  <Style TargetType="Button">
    <Setter Property="Template">
      <Setter.Value>
        <ControlTemplate TargetType="Button">
          <Grid x:Name="Root" Background="Transparent" Margin="0,12">
            <VisualStateManager.VisualStateGroups>
              <VisualStateGroup x:Name="CommonStates">
                <VisualState x:Name="Normal"/>
                <VisualState x:Name="PointerOver"/>
                <VisualState x:Name="Pressed">
                  <Storyboard>
                    <DoubleAnimation Storyboard.TargetProperty="Opacity" Storyboard.TargetName="Root" To="0.3" Duration="0"/>
                  </Storyboard>
                </VisualState>
                <VisualState x:Name="Disabled"/>
              </VisualStateGroup>
            </VisualStateManager.VisualStateGroups>
            <Border x:Name="Border" BorderBrush="White" BorderThickness="3">
              <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
            </Border>
          </Grid>
        </ControlTemplate>
      </Setter.Value>
    </Setter>
  </Style>
</Page.Resources>

<StackPanel>
  <Button Content="hello"/>
  <Button Content="there"/>
  <Button Content="matey"/>
</StackPanel>

using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Media;

namespace StyleTest
{
  public class MyButton : Button
  {
    public static readonly DependencyProperty PressedContentProperty = DependencyProperty.Register("PressedContent", typeof(Brush), typeof(MyButton), null);
    public Brush PressedContent
    {
      get { return (Brush)GetValue(PressedContentProperty); }
      set { SetValue(PressedContentProperty, value); }
    }
  }
}

<Page
    x:Class="StyleTest.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:StyleTest"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
  <Page.Resources>
    <Style TargetType="local:MyButton">
      <Setter Property="Template">
        <Setter.Value>
          <ControlTemplate TargetType="local:MyButton">
            <Grid x:Name="Root" Background="Transparent" Margin="0,9.6">
              <VisualStateManager.VisualStateGroups>
                <VisualStateGroup x:Name="CommonStates">
                  <VisualState x:Name="Normal"/>
                  <VisualState x:Name="PointerOver"/>
                  <VisualState x:Name="Pressed">
                    <Storyboard>
                      <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Image" Storyboard.TargetProperty="Visibility">
                        <DiscreteObjectKeyFrame KeyTime="0" Value="Visible"/>
                      </ObjectAnimationUsingKeyFrames>
                    </Storyboard>
                  </VisualState>
                  <VisualState x:Name="Disabled"/>
                </VisualStateGroup>
              </VisualStateManager.VisualStateGroups>
              <Border x:Name="Image" Background="{TemplateBinding PressedContent}" Visibility="Collapsed"/>
              <Border x:Name="Border" BorderBrush="White" BorderThickness="2.4">
                <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
              </Border>
            </Grid>
          </ControlTemplate>
        </Setter.Value>
      </Setter>
    </Style>
  </Page.Resources>

  <StackPanel>
    <local:MyButton Content="change bg!">
      <local:MyButton.PressedContent>
        <ImageBrush ImageSource="/Assets/Logo.png"/>
      </local:MyButton.PressedContent>
    </local:MyButton>
  </StackPanel>
</Page>