【发布时间】:2015-01-14 08:36:08
【问题描述】:
我想根据 Torch Control 类的属性更改按钮上显示的图像。就像如果启用了手电筒,它应该显示不同的图像,如果禁用则显示不同的图像。下面是我现在按钮的代码。
<Button.Style>
<Style TargetType="Button">
<Setter Property="Background"
Value="Transparent" />
<Setter Property="BorderBrush"
Value="{StaticResource PhoneForegroundBrush}" />
<Setter Property="Foreground"
Value="{StaticResource PhoneForegroundBrush}" />
<Setter Property="BorderThickness"
Value="{StaticResource PhoneBorderThickness}" />
<Setter Property="FontFamily"
Value="{StaticResource PhoneFontFamilySemiBold}" />
<Setter Property="Padding"
Value="10,5,10,6" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Grid Background="Transparent">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="MouseOver" />
<VisualState x:Name="Pressed">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Source"
Storyboard.TargetName="Img">
<!-- Pressed Image. -->
<DiscreteObjectKeyFrame KeyTime="0"
Value="Assets/Power button Blue.jpg" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground"
Storyboard.TargetName="ContentContainer">
<DiscreteObjectKeyFrame KeyTime="0"
Value="{StaticResource PhoneButtonBasePressedForegroundBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background"
Storyboard.TargetName="ButtonBackground">
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground"
Storyboard.TargetName="ContentContainer">
<DiscreteObjectKeyFrame KeyTime="0"
Value="{StaticResource PhoneDisabledBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush"
Storyboard.TargetName="ButtonBackground">
<DiscreteObjectKeyFrame KeyTime="0"
Value="{StaticResource PhoneDisabledBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background"
Storyboard.TargetName="ButtonBackground">
<DiscreteObjectKeyFrame KeyTime="0"
Value="Transparent" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border x:Name="ButtonBackground"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Background="{TemplateBinding Background}"
CornerRadius="0"
Margin="{StaticResource PhoneTouchTargetOverhang}">
<StackPanel Orientation="Horizontal">
<!-- Added Image to the Button Template. Specify image that you
want to show when button is in normal state. -->
<Image x:Name="Img"
Source="Assets/Power button Blue - Copy.jpg"
/>
<ContentControl x:Name="ContentContainer"
ContentTemplate="{TemplateBinding ContentTemplate}"
Content="{TemplateBinding Content}"
Foreground="{TemplateBinding Foreground}"
HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
Padding="{TemplateBinding Padding}"
VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" />
</StackPanel>
</Border>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Button.Style>
</Button>
现在的问题是,一旦我从按钮上移除触摸,它就会在手电筒启用时恢复为默认图像。如何根据 Torch 的状态更改 Button 的视觉资源?请帮忙。谢谢:)
【问题讨论】:
-
我无法理解您所说的“火炬”是什么意思。这是一些属性,您需要根据它更改按钮中的图像吗?
-
手电筒意味着当我们点击按钮时手机闪光灯开始工作,当我们再次点击按钮时闪光灯关闭。
标签: c# .net xaml windows-phone-8.1