在仪表板上我有一个图像,例如ManageUser.png。所以在鼠标上我想在UWP中更改图像(将图像替换为MnageUserBright.png)
<Image Source="manage_user.png" Height="120" Width="120" Tapped="ManageUserPage" Margin="176,31,534,84" Grid.Row="1" />
我只有图像代码。
您可以在PointerEntered
元素上使用<Image>
事件,因此当用户将鼠标指针或手指移动到图像上时,您可以触发一些代码来替换图像:
<Image x:Name="MyImage" Source="manage_user.png" Height="120" Width="120" Tapped="ManageUserPage" Margin="176,31,534,84" Grid.Row="1" PointerEntered="OnPointerOverImage" />
public void OnPointerOverImage(Object sender, PointerRoutedEventArgs e)
{
MyImage.Source = new BitmapImage("PathToYourNewImageFile", UriKind.Absolute);
}
当用户将指针移出图像时,您需要通过处理PointerExited
事件来反向设置原始图像。
感谢@Rafeal,我建议使用所有xaml代码来完成它。
第一件事是安装Microsoft.Xaml.Behaviors.Uwp.Managed。如何安装请参阅:https://www.nuget.org/packages/Microsoft.Xaml.Behaviors.Uwp.Managed/
这种方式是使用Storyboard在用户鼠标输入时更改图像源。
定义两个故事板。
<Border.Resources>
<Storyboard x:Key="EnterStoryboard">
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Image" Storyboard.TargetProperty="Source">
<ObjectAnimationUsingKeyFrames.KeyFrames>
<DiscreteObjectKeyFrame KeyTime="0:0:0" Value="assets/click_cursor_mouse_pointer_select_128px_1225441_easyicon.net.png"></DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames.KeyFrames>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="ExitStoryboard">
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Image" Storyboard.TargetProperty="Source">
<ObjectAnimationUsingKeyFrames.KeyFrames>
<DiscreteObjectKeyFrame KeyTime="0:0:0" Value="Assets/click_cursor_mouse_pointer_select_121.7433808554px_1193623_easyicon.net.png"></DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames.KeyFrames>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</Border.Resources>
并将图像放到边框。
<Border>
<Border.Resources>
<Storyboard x:Key="EnterStoryboard">
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Image" Storyboard.TargetProperty="Source">
<ObjectAnimationUsingKeyFrames.KeyFrames>
<DiscreteObjectKeyFrame KeyTime="0:0:0"
Value="manage_user.png" />
</ObjectAnimationUsingKeyFrames.KeyFrames>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="ExitStoryboard">
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Image" Storyboard.TargetProperty="Source">
<ObjectAnimationUsingKeyFrames.KeyFrames>
<DiscreteObjectKeyFrame KeyTime="0:0:0"
Value="Assets/normal.png" />
</ObjectAnimationUsingKeyFrames.KeyFrames>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</Border.Resources>
<Image x:Name="Image"
Source="manage_user.png"
Height="120" Width="120" Margin="176,31,534,84" />
</Border>
使用事件触发器。
<interactivity:Interaction.Behaviors>
<core:EventTriggerBehavior EventName="PointerEntered">
<media:ControlStoryboardAction Storyboard="{StaticResource EnterStoryboard}" />
</core:EventTriggerBehavior>
<core:EventTriggerBehavior EventName="PointerExited">
<media:ControlStoryboardAction Storyboard="{StaticResource ExitStoryboard}" />
</core:EventTriggerBehavior>
</interactivity:Interaction.Behaviors>
代码都是用xaml写的。你应该更换源。
<Grid>
<Border>
<Border.Resources>
<Storyboard x:Key="EnterStoryboard">
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Image" Storyboard.TargetProperty="Source">
<ObjectAnimationUsingKeyFrames.KeyFrames>
<DiscreteObjectKeyFrame KeyTime="0:0:0"
Value="assets/click_cursor_mouse_pointer_select_128px_1225441_easyicon.net.png" />
</ObjectAnimationUsingKeyFrames.KeyFrames>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="ExitStoryboard">
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Image" Storyboard.TargetProperty="Source">
<ObjectAnimationUsingKeyFrames.KeyFrames>
<DiscreteObjectKeyFrame KeyTime="0:0:0"
Value="Assets/click_cursor_mouse_pointer_select_121.7433808554px_1193623_easyicon.net.png" />
</ObjectAnimationUsingKeyFrames.KeyFrames>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</Border.Resources>
<interactivity:Interaction.Behaviors>
<core:EventTriggerBehavior EventName="PointerEntered">
<media:ControlStoryboardAction Storyboard="{StaticResource EnterStoryboard}" />
</core:EventTriggerBehavior>
<core:EventTriggerBehavior EventName="PointerExited">
<media:ControlStoryboardAction Storyboard="{StaticResource ExitStoryboard}" />
</core:EventTriggerBehavior>
</interactivity:Interaction.Behaviors>
<Image x:Name="Image"
Source="Assets/click_cursor_mouse_pointer_select_121.7433808554px_1193623_easyicon.net.png"
Height="120" Width="120" Margin="176,31,534,84" />
</Border>
</Grid>