Cara: Mengulangi Animasi
Contoh ini menunjukkan cara menggunakan RepeatBehavior properti dari untuk Timeline mengontrol perilaku berulang animasi.
Contoh
Properti RepeatBehavior kontrol Timeline berapa kali animasi mengulangi durasi sederhananya. Dengan menggunakan RepeatBehavior, Anda dapat menentukan bahwa Timeline pengulangan untuk beberapa kali tertentu (jumlah perulangan) atau untuk periode waktu tertentu. Dalam kedua kasus, animasi melewati sebanyak mungkin eksekusi awal ke ujung yang diperlukan untuk mengisi jumlah atau durasi yang diminta.
Secara default, garis waktu memiliki jumlah pengulangan 1,0, yang berarti mereka bermain satu kali dan tidak mengulangi. Namun, jika Anda mengatur RepeatBehavior properti dari a Timeline ke Forever, garis waktu berulang tanpa batas waktu.
Contoh berikut menunjukkan cara menggunakan RepeatBehavior properti untuk mengontrol perilaku berulang animasi. Contoh menganimasikan Width properti lima persegi panjang dengan setiap persegi panjang menggunakan jenis perilaku berulang yang berbeda.
<!-- RepeatBehaviorExample.xaml
This example shows how to use the RepeatBehavior property to make a timeline repeat. -->
<Page
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
WindowTitle="RepeatBehavior Example">
<Border HorizontalAlignment="Stretch">
<StackPanel Margin="20">
<!-- Create several rectangles to animate. -->
<Rectangle Name="ForeverRepeatingRectangle"
Fill="Orange" Width="50" Height="20" />
<Rectangle Name="FourSecondsRepeatingRectangle"
Fill="Orange" Width="50" Height="20" />
<Rectangle Name="TwiceRepeatingRectangle"
Fill="Orange" Width="50" Height="20" />
<Rectangle Name="HalfRepeatingRectangle"
Fill="Orange" Width="50" Height="20" />
<Rectangle Name="OneSecondRepeatingRectangle"
Fill="Orange" Width="50" Height="20" />
<!-- Create buttons to restart and stop the animations. -->
<StackPanel Orientation="Horizontal" Margin="0,20,0,0">
<Button Name="restartButton">Start Animations</Button>
<Button Name="stopButton" Background="#669900FF">Stop</Button>
<StackPanel.Triggers>
<EventTrigger SourceName="restartButton" RoutedEvent="Button.Click">
<BeginStoryboard Name="myBeginStoryboard">
<Storyboard>
<!-- Create an animation that repeats indefinitely. -->
<DoubleAnimation
Storyboard.TargetName="ForeverRepeatingRectangle"
Storyboard.TargetProperty="Width"
From="50" To="300" Duration="0:0:2" RepeatBehavior="Forever" />
<!-- Create an animation that repeats for four seconds. As a result, the
animation repeats twice. -->
<DoubleAnimation
Storyboard.TargetName="FourSecondsRepeatingRectangle"
Storyboard.TargetProperty="Width"
From="50" To="300" Duration="0:0:2" RepeatBehavior="0:0:4" />
<!-- Create an animation that repeats twice. -->
<DoubleAnimation
Storyboard.TargetName="TwiceRepeatingRectangle"
Storyboard.TargetProperty="Width"
From="50" To="300" Duration="0:0:2" RepeatBehavior="2x" />
<!-- Create an animation that repeats 0.5 times. The resulting animation
plays for one second, half of its Duration. It animates from 50 to 150. -->
<DoubleAnimation
Storyboard.TargetName="HalfRepeatingRectangle"
Storyboard.TargetProperty="Width"
From="50" To="300" Duration="0:0:2" RepeatBehavior="0.5x" />
<!-- Create an animation that repeats for one second. The resulting animation
plays for one second, half of its Duration. It animates from 50 to 150. -->
<DoubleAnimation
Storyboard.TargetName="OneSecondRepeatingRectangle"
Storyboard.TargetProperty="Width"
From="50" To="300" Duration="0:0:2" RepeatBehavior="0:0:1" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
<EventTrigger SourceName="stopButton" RoutedEvent="Button.Click">
<StopStoryboard BeginStoryboardName="myBeginStoryboard" />
</EventTrigger>
</StackPanel.Triggers>
</StackPanel>
</StackPanel>
</Border>
</Page>
Untuk sampel lengkapnya, lihat Sampel Perilaku Pengaturan Waktu Animasi.
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