我有一对夫妇的与同一类的事情悬而未决的问题,
我很新的WPF,但与C#和WinForms经历。
我环顾四周的interweb的工作的例子,但还没有找到一个工程。
我想实现的是在C#函数创建以下
- 创建的图像(图像1)
- 创建的图像(图像2)
- 把图像通过侧车窗侧
- 创建一个故事板
- 动画图像1的从0到360的旋转属性(动画1)
- 从全动画图像2的不透明度属性为不可见(animation2)
- 故事板应十秒动画1运行开始0秒和动画2开始5秒时
道歉代码明确要求,但是,我已经看过,并试图,我刚才的问题有这样的执行完整的代码,但没有动画显示(以下链接)
如何创建故事板并使用C#代码在WPF旋转图像
提前致谢
和。
这是一个工作XAML versionn你的问题,然后在C#中相同的事情。 可能不是你是什么之后,但它应该说明它。
XAML版本:
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<Storyboard x:Key="Storyboard" BeginTime="00:00:00.000" Duration="00:00:10.000">
<DoubleAnimation Storyboard.TargetName="RotateImage"
Storyboard.TargetProperty="(UIElement.RenderTransform).(RotateTransform.Angle)"
From="0" To="360" BeginTime="00:00:05.000" Duration="00:00:05.000" />
<DoubleAnimation Storyboard.TargetName="OpacityImage"
Storyboard.TargetProperty="Opacity"
From="1" To="0" Duration="00:00:10.000" />
</Storyboard>
</Window.Resources>
<Grid>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Image x:Name="RotateImage" Stretch="Uniform" Source="Chrysanthemum.jpg">
<Image.RenderTransform>
<RotateTransform Angle="0" />
</Image.RenderTransform>
</Image>
<Image x:Name="OpacityImage" Grid.Column="1" Stretch="Uniform" Source="Desert.jpg" />
<Button Grid.Row="1" Grid.ColumnSpan="2" Content="Start">
<Button.Triggers>
<EventTrigger RoutedEvent="Button.Click">
<BeginStoryboard Storyboard="{StaticResource Storyboard}" />
</EventTrigger>
</Button.Triggers>
</Button>
</Grid>
</Window>
和C#版本:
public MainWindow()
{
InitializeComponent();
Image rotateImage = new Image()
{
Stretch = Stretch.Uniform,
Source = new BitmapImage(new Uri("pack://application:,,,/Chrysanthemum.jpg")),
RenderTransform = new RotateTransform()
};
Image opacityImage = new Image()
{
Stretch = Stretch.Uniform,
Source = new BitmapImage(new Uri("pack://application:,,,/Desert.jpg"))
};
LayoutRoot.Children.Add(rotateImage);
LayoutRoot.Children.Add(opacityImage);
Grid.SetColumn(opacityImage, 1);
Storyboard storyboard = new Storyboard();
storyboard.Duration = new Duration(TimeSpan.FromSeconds(10.0));
DoubleAnimation rotateAnimation = new DoubleAnimation()
{
From = 0,
To = 360,
Duration = storyboard.Duration
};
DoubleAnimation opacityAnimation = new DoubleAnimation()
{
From = 1.0,
To = 0.0,
BeginTime = TimeSpan.FromSeconds(5.0),
Duration = new Duration(TimeSpan.FromSeconds(5.0))
};
Storyboard.SetTarget(rotateAnimation, rotateImage);
Storyboard.SetTargetProperty(rotateAnimation, new PropertyPath("(UIElement.RenderTransform).(RotateTransform.Angle)"));
Storyboard.SetTarget(opacityAnimation, opacityImage);
Storyboard.SetTargetProperty(opacityAnimation, new PropertyPath("Opacity"));
storyboard.Children.Add(rotateAnimation);
storyboard.Children.Add(opacityAnimation);
Resources.Add("Storyboard", storyboard);
Button button = new Button()
{
Content = "Begin"
};
button.Click += button_Click;
Grid.SetRow(button, 1);
Grid.SetColumnSpan(button, 2);
LayoutRoot.Children.Add(button);
}
void button_Click(object sender, RoutedEventArgs e)
{
((Storyboard)Resources["Storyboard"]).Begin();
}
动画是如下工作。
1-该程序创建一个定时器。
2-程序将检查以设定的间隔定时器,看看有多少时间已过。
3-每次程序检查计时器,它计算用于矩形当前不透明度值基于多少时间已过。
4,然后程序更新与新价值的矩形,并重绘。
以下是创建矩形和动画它的代码。
<Window x:Class="Animation.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Animated Rectangle" Height="350" Width="525">
<Grid>
<StackPanel Margin="10">
<Image Name="MyImage" Source="e:\a.jpg" Width="100" Margin="50" ></Image>
<Rectangle
Name="MyRectangle"
Width="100"
Height="100"
Fill="Blue">
<Rectangle.Triggers>
<!-- Animates the rectangle's opacity. -->
<EventTrigger RoutedEvent="Rectangle.Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation
Storyboard.TargetName="MyImage"
Storyboard.TargetProperty="Opacity"
From="1.0" To="0.0" Duration="0:0:3"
AutoReverse="True" RepeatBehavior="Forever" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Rectangle.Triggers>
</Rectangle>
</StackPanel>
</Grid>
文章来源: How do I create a rotate animation on an image object using c# code only (inside a WPF window)