共用方式為


ObjectAnimationUsingKeyFrames 類別

定義

在指定的Duration沿著一組KeyFrame,以動畫顯示Object屬性的值。

public ref class ObjectAnimationUsingKeyFrames sealed : Timeline
/// [Windows.Foundation.Metadata.Activatable(65536, Windows.Foundation.UniversalApiContract)]
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
/// [Windows.UI.Xaml.Markup.ContentProperty(Name="KeyFrames")]
class ObjectAnimationUsingKeyFrames final : Timeline
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
/// [Windows.UI.Xaml.Markup.ContentProperty(Name="KeyFrames")]
/// [Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
class ObjectAnimationUsingKeyFrames final : Timeline
[Windows.Foundation.Metadata.Activatable(65536, typeof(Windows.Foundation.UniversalApiContract))]
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.UI.Xaml.Markup.ContentProperty(Name="KeyFrames")]
public sealed class ObjectAnimationUsingKeyFrames : Timeline
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.UI.Xaml.Markup.ContentProperty(Name="KeyFrames")]
[Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
public sealed class ObjectAnimationUsingKeyFrames : Timeline
Public NotInheritable Class ObjectAnimationUsingKeyFrames
Inherits Timeline
<ObjectAnimationUsingKeyFrames>oneOrMoreDiscreteObjectKeyFrames</ObjectAnimationUsingKeyFrames>
繼承
Object Platform::Object IInspectable DependencyObject Timeline ObjectAnimationUsingKeyFrames
屬性

Windows 需求

裝置系列
Windows 10 (已於 10.0.10240.0 引進)
API contract
Windows.Foundation.UniversalApiContract (已於 v1.0 引進)

範例

下列範例使用 ObjectAnimationUsingKeyFrames 類別,以動畫顯示RectangleFill屬性。 此動畫會以下列方式使用兩個主要畫面格:

  1. 使用DiscreteObjectKeyFrame時,RectangleFill屬性會在動畫的前兩秒之後突然變更為LinearGradientBrush
  2. 動畫的第三秒之後, Fill 屬性突然變更為不同的 LinearGradientBrush,直到動畫結尾 (四秒總計) 為止。
<StackPanel>
    <StackPanel.Resources>
        <Storyboard x:Name="myStoryboard">

            <!-- ObjectAnimationUsingKeyFrames is used to animate properties that take
         an object as a value. This animation lasts for 4 seconds using 3 KeyFrames which
         swap different brush objects at regular intervals, making the background of the Page
         change. -->
            <ObjectAnimationUsingKeyFrames
         Storyboard.TargetName="animatedRectangle"
         Storyboard.TargetProperty="Fill"
         Duration="0:0:4" RepeatBehavior="Forever">
                <ObjectAnimationUsingKeyFrames.KeyFrames>

                    <!-- Note: Only discrete interpolation (DiscreteObjectKeyFrame) is available for 
                use with ObjectAnimationUsingKeyFrames which merely swaps objects according to
                a specified timeline. Other types of interpolation are too problematic to apply
                to objects.  -->
                    <!-- Using a DiscreteObjectKeyFrame, the Fill property of the Rectangle suddenly  
                changes to a LinearGradientBrush after the first two seconds of the animation. -->
                    <DiscreteObjectKeyFrame KeyTime="0:0:2">
                        <DiscreteObjectKeyFrame.Value>
                            <LinearGradientBrush>
                                <LinearGradientBrush.GradientStops>
                                    <GradientStop Color="Yellow" Offset="0.0" />
                                    <GradientStop Color="Orange" Offset="0.5" />
                                    <GradientStop Color="Red" Offset="1.0" />
                                </LinearGradientBrush.GradientStops>
                            </LinearGradientBrush>
                        </DiscreteObjectKeyFrame.Value>
                    </DiscreteObjectKeyFrame>

                    <!-- After the third second of the animation, the Fill property is suddenly changed 
                to a different LinearGradientBrush which remains until the end of the animation 
                (4 seconds total). -->
                    <DiscreteObjectKeyFrame KeyTime="0:0:3">
                        <DiscreteObjectKeyFrame.Value>
                            <LinearGradientBrush>
                                <LinearGradientBrush.GradientStops>
                                    <GradientStop Color="White" Offset="0.0" />
                                    <GradientStop Color="MediumBlue" Offset="0.5" />
                                    <GradientStop Color="Black" Offset="1.0" />
                                </LinearGradientBrush.GradientStops>
                            </LinearGradientBrush>
                        </DiscreteObjectKeyFrame.Value>
                    </DiscreteObjectKeyFrame>

                </ObjectAnimationUsingKeyFrames.KeyFrames>
            </ObjectAnimationUsingKeyFrames>
        </Storyboard>
    </StackPanel.Resources>

    <!-- The Fill property of this rectangle is animated. -->
    <Rectangle x:Name="animatedRectangle" Loaded="Rectangle_Loaded" Width="300" Height="300" />

</StackPanel>
// When the rectangle loads, begin the animation.
private void Rectangle_Loaded(object sender, RoutedEventArgs e)
{
    myStoryboard.Begin();
}
' When the rectangle loads, begin the animation.
Private Sub Rectangle_Loaded(ByVal sender As Object, ByVal e As EventArgs)
    myStoryboard.Begin()
End Sub

建構函式

ObjectAnimationUsingKeyFrames()

初始化 ObjectAnimationUsingKeyFrames 類別的新實例。

屬性

AutoReverse

取得或設定值,其中該值指出時間軸是否會在完成向前反覆項目後反向播放。

(繼承來源 Timeline)
BeginTime

取得或設定這個 時間軸 應該開始的時間。

(繼承來源 Timeline)
Dispatcher

取得這個 物件相關聯的 CoreDispatcherCoreDispatcher代表可在 UI 執行緒上存取DependencyObject的功能,即使程式碼是由非 UI 執行緒起始也一樣。

(繼承來源 DependencyObject)
Duration

取得或設定這個時間表播放的時間長度 (不計算重複次數)。

(繼承來源 Timeline)
EnableDependentAnimation

取得或設定值,這個值會宣告是否應該允許考慮相依動畫的動畫屬性使用此動畫宣告。

EnableDependentAnimationProperty

識別 EnableDependentAnimation 相依性屬性。

FillBehavior

取得或設定值,這個值會指定動畫在到達使用期間結束時的行為。

(繼承來源 Timeline)
KeyFrames

取得定義動畫之 ObjectKeyFrame 物件的集合。

RepeatBehavior

取得或設定這個時間軸的重複行為。

(繼承來源 Timeline)
SpeedRatio

取得或設定相對於其父系的速率,此時會進行這個 時間軸

(繼承來源 Timeline)

方法

ClearValue(DependencyProperty)

清除相依性屬性的本機值。

(繼承來源 DependencyObject)
GetAnimationBaseValue(DependencyProperty)

傳回為相依性屬性建立的任何基底值,如果動畫未使用中,則適用此屬性。

(繼承來源 DependencyObject)
GetValue(DependencyProperty)

DependencyObject傳回相依性屬性的目前有效值。

(繼承來源 DependencyObject)
ReadLocalValue(DependencyProperty)

如果已設定本機值,則傳回相依性屬性的本機值。

(繼承來源 DependencyObject)
RegisterPropertyChangedCallback(DependencyProperty, DependencyPropertyChangedCallback)

註冊通知函式,以接聽此DependencyObject實例上特定DependencyProperty的變更。

(繼承來源 DependencyObject)
SetValue(DependencyProperty, Object)

設定 DependencyObject上相依性屬性的本機值。

(繼承來源 DependencyObject)
UnregisterPropertyChangedCallback(DependencyProperty, Int64)

取消先前透過呼叫 RegisterPropertyChangedCallback註冊的變更通知。

(繼承來源 DependencyObject)

事件

Completed

發生于 Storyboard 物件已完成播放時。

(繼承來源 Timeline)

適用於

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