Animatable.BeginAnimation Methode
Definition
Wendet eine Animation auf die angegebene DependencyProperty an.Applies an animation to the specified DependencyProperty.
Überlädt
BeginAnimation(DependencyProperty, AnimationTimeline) |
Wendet eine Animation auf die angegebene DependencyProperty an.Applies an animation to the specified DependencyProperty. Die Animation wird gestartet, wenn der nächste Frame gerendert wird.The animation is started when the next frame is rendered. Wenn die angegebene Eigenschaft bereits animiert wird, wird das SnapshotAndReplace-Übergabeverhalten verwendet.If the specified property is already animated, the SnapshotAndReplace handoff behavior is used. |
BeginAnimation(DependencyProperty, AnimationTimeline, HandoffBehavior) |
Wendet eine Animation auf die angegebene DependencyProperty an.Applies an animation to the specified DependencyProperty. Die Animation wird gestartet, wenn der nächste Frame gerendert wird.The animation is started when the next frame is rendered. Wenn die angegebene Eigenschaft bereits animiert wird, wird das angegebene HandoffBehavior verwendet.If the specified property is already animated, the specified HandoffBehavior is used. |
BeginAnimation(DependencyProperty, AnimationTimeline)
Wendet eine Animation auf die angegebene DependencyProperty an.Applies an animation to the specified DependencyProperty. Die Animation wird gestartet, wenn der nächste Frame gerendert wird.The animation is started when the next frame is rendered. Wenn die angegebene Eigenschaft bereits animiert wird, wird das SnapshotAndReplace-Übergabeverhalten verwendet.If the specified property is already animated, the SnapshotAndReplace handoff behavior is used.
public:
virtual void BeginAnimation(System::Windows::DependencyProperty ^ dp, System::Windows::Media::Animation::AnimationTimeline ^ animation);
public void BeginAnimation (System.Windows.DependencyProperty dp, System.Windows.Media.Animation.AnimationTimeline animation);
abstract member BeginAnimation : System.Windows.DependencyProperty * System.Windows.Media.Animation.AnimationTimeline -> unit
override this.BeginAnimation : System.Windows.DependencyProperty * System.Windows.Media.Animation.AnimationTimeline -> unit
Public Sub BeginAnimation (dp As DependencyProperty, animation As AnimationTimeline)
Parameter
Die zu animierende Eigenschaft.The property to animate.
- animation
- AnimationTimeline
Die Animation, mit der die angegebene Eigenschaft animiert werden soll.The animation used to animate the specified property.
Wenn die BeginTime der Animation null
ist, werden alle aktuellen Animationen entfernt und der aktuelle Wert der Eigenschaft bleibt erhalten.If the animation's BeginTime is null
, any current animations will be removed and the current value of the property will be held.
Wenn animation
ist null
, werden alle Animationen aus der Eigenschaft entfernt, und der Eigenschaftswert wird auf den Basiswert zurückgesetzt.If animation
is null
, all animations will be removed from the property and the property value will revert back to its base value.
Implementiert
Hinweise
Wenn die Animation BeginTime größer als 0 (null) ist, beginnt die Animation, nachdem diese Zeitspanne von dem Zeitpunkt, an dem der nächste Frame gerendert wurde, verstrichen ist.If the animation has a BeginTime that is greater than zero, the animation begins after that amount of time has elapsed from the time the next frame is rendered.
Gilt für:
BeginAnimation(DependencyProperty, AnimationTimeline, HandoffBehavior)
Wendet eine Animation auf die angegebene DependencyProperty an.Applies an animation to the specified DependencyProperty. Die Animation wird gestartet, wenn der nächste Frame gerendert wird.The animation is started when the next frame is rendered. Wenn die angegebene Eigenschaft bereits animiert wird, wird das angegebene HandoffBehavior verwendet.If the specified property is already animated, the specified HandoffBehavior is used.
public:
virtual void BeginAnimation(System::Windows::DependencyProperty ^ dp, System::Windows::Media::Animation::AnimationTimeline ^ animation, System::Windows::Media::Animation::HandoffBehavior handoffBehavior);
public void BeginAnimation (System.Windows.DependencyProperty dp, System.Windows.Media.Animation.AnimationTimeline animation, System.Windows.Media.Animation.HandoffBehavior handoffBehavior);
abstract member BeginAnimation : System.Windows.DependencyProperty * System.Windows.Media.Animation.AnimationTimeline * System.Windows.Media.Animation.HandoffBehavior -> unit
override this.BeginAnimation : System.Windows.DependencyProperty * System.Windows.Media.Animation.AnimationTimeline * System.Windows.Media.Animation.HandoffBehavior -> unit
Public Sub BeginAnimation (dp As DependencyProperty, animation As AnimationTimeline, handoffBehavior As HandoffBehavior)
Parameter
Die zu animierende Eigenschaft.The property to animate.
- animation
- AnimationTimeline
Die Animation, mit der die angegebene Eigenschaft animiert werden soll.The animation used to animate the specified property.
Wenn handoffBehavior
den Wert SnapshotAndReplace aufweist und die BeginTime der Animation null
ist, werden aktuelle Animationen entfernt, und der aktuelle Werte der Eigenschaft wird beibehalten.If handoffBehavior
is SnapshotAndReplace and the animation's BeginTime is null
, any current animations will be removed and the current value of the property will be held.
Wenn handoffBehavior
den Wert SnapshotAndReplace aufweist und animation
ein null
-Verweis ist, werden alle Animationen aus der Eigenschaft entfernt, und der Eigenschaftswert wird auf den Basiswert der Eigenschaft zurückgesetzt.If handoffBehavior
is SnapshotAndReplace and animation
is a null
reference, all animations will be removed from the property and the property value will revert back to its base value.
Wenn handoffBehavior
den Wert Compose aufweist und die Animation oder ihre BeginTimenull
ist, hat diese Methode keine Auswirkungen.If handoffBehavior
is Compose, this method will have no effect if the animation or its BeginTime is null
.
- handoffBehavior
- HandoffBehavior
Ein Wert, der angibt, wie die neue Animation ggf. mit aktuellen Animationen interagieren soll, die sich bereits auf den Eigenschaftswert auswirken.A value that specifies how the new animation should interact with any current animations already affecting the property value.
Implementiert
Beispiele
Im folgenden Beispiel wird gezeigt, wie Animationen mit unterschiedlichen Einstellungen angewendet werden HandoffBehavior .The following example shows how to apply animations using different HandoffBehavior settings.
/*
This sample animates the position of an ellipse when
the user clicks within the main border. If the user
left-clicks, the SnapshotAndReplace HandoffBehavior
is used when applying the animations. If the user
right-clicks, the Compose HandoffBehavior is used
instead.
*/
using namespace System;
using namespace System::Windows;
using namespace System::Windows::Navigation;
using namespace System::Windows::Media;
using namespace System::Windows::Media::Animation;
using namespace System::Windows::Shapes;
using namespace System::Windows::Controls;
using namespace System::Windows::Input;
namespace Microsoft {
namespace Samples {
namespace Animation {
namespace LocalAnimations {
public ref class InteractiveAnimationExample : Page {
private:
TranslateTransform^ interactiveTranslateTransform;
Border^ containerBorder;
Ellipse^ interactiveEllipse;
public:
InteractiveAnimationExample ()
{
WindowTitle = "Interactive Animation Example";
DockPanel^ myPanel = gcnew DockPanel();
myPanel->Margin = Thickness(20.0);
containerBorder = gcnew Border();
containerBorder->Background = Brushes::White;
containerBorder->BorderBrush = Brushes::Black;
containerBorder->BorderThickness = Thickness(2.0);
containerBorder->VerticalAlignment = System::Windows::VerticalAlignment::Stretch;
interactiveEllipse = gcnew Ellipse();
interactiveEllipse->Fill = Brushes::Lime;
interactiveEllipse->Stroke = Brushes::Black;
interactiveEllipse->StrokeThickness = 2.0;
interactiveEllipse->Width = 25;
interactiveEllipse->Height = 25;
interactiveEllipse->HorizontalAlignment = System::Windows::HorizontalAlignment::Left;
interactiveEllipse->VerticalAlignment = System::Windows::VerticalAlignment::Top;
interactiveTranslateTransform = gcnew TranslateTransform();
interactiveEllipse->RenderTransform = interactiveTranslateTransform;
containerBorder->MouseLeftButtonDown +=
gcnew MouseButtonEventHandler(this, &Microsoft::Samples::Animation::LocalAnimations::InteractiveAnimationExample::border_mouseLeftButtonDown);
containerBorder->MouseRightButtonDown +=
gcnew MouseButtonEventHandler(this, &Microsoft::Samples::Animation::LocalAnimations::InteractiveAnimationExample::border_mouseRightButtonDown);
containerBorder->Child = interactiveEllipse;
myPanel->Children->Add(containerBorder);
this->Content = myPanel;
};
private:
// When the user left-clicks, use the
// SnapshotAndReplace HandoffBehavior when applying the animation.
void border_mouseLeftButtonDown (System::Object^ sender, System::Windows::Input::MouseButtonEventArgs^ e)
{
System::Windows::Point clickPoint = Mouse::GetPosition(containerBorder);
// Set the target point so the center of the ellipse
// ends up at the clicked point.
Point targetPoint = Point();
targetPoint.X = clickPoint.X - interactiveEllipse->Width / 2;
targetPoint.Y = clickPoint.Y - interactiveEllipse->Height / 2;
// Animate to the target point.
DoubleAnimation^ xAnimation = gcnew DoubleAnimation(targetPoint.X,
Duration(TimeSpan::FromSeconds(4)));
interactiveTranslateTransform->BeginAnimation(TranslateTransform::XProperty, xAnimation, HandoffBehavior::SnapshotAndReplace);
DoubleAnimation^ yAnimation = gcnew DoubleAnimation(targetPoint.Y,
Duration(TimeSpan::FromSeconds(4)));
interactiveTranslateTransform->BeginAnimation(TranslateTransform::YProperty, yAnimation, HandoffBehavior::SnapshotAndReplace);
// Chage the color of the ellipse.
interactiveEllipse->Fill = Brushes::Lime;
}
private:
// When the user right-clicks, use the
// Compose HandoffBehavior when applying the animation.
void border_mouseRightButtonDown (System::Object^ sender, System::Windows::Input::MouseButtonEventArgs^ e)
{
// Find the point where the use clicked.
Point clickPoint = Mouse::GetPosition(containerBorder);
// Set the target point so the center of the ellipse
// ends up at the clicked point.
Point targetPoint = System::Windows::Point();
targetPoint.X = clickPoint.X - interactiveEllipse->Width / 2;
targetPoint.Y = clickPoint.Y - interactiveEllipse->Height / 2;
// Animate to the target point.
DoubleAnimation^ xAnimation = gcnew DoubleAnimation(targetPoint.X,
Duration(TimeSpan::FromSeconds(4)));
interactiveTranslateTransform->BeginAnimation(TranslateTransform::XProperty, xAnimation, HandoffBehavior::Compose);
DoubleAnimation^ yAnimation = gcnew DoubleAnimation(targetPoint.Y,
Duration(TimeSpan::FromSeconds(4)));
// Change the color of the ellipse.
interactiveTranslateTransform->BeginAnimation(TranslateTransform::YProperty, yAnimation, HandoffBehavior::Compose);
interactiveEllipse->Fill = Brushes::Orange;
}
};
}
}
}
}
/*
This sample animates the position of an ellipse when
the user clicks within the main border. If the user
left-clicks, the SnapshotAndReplace HandoffBehavior
is used when applying the animations. If the user
right-clicks, the Compose HandoffBehavior is used
instead.
*/
using System;
using System.Windows;
using System.Windows.Navigation;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Controls;
using System.Windows.Input;
namespace Microsoft.Samples.Animation.LocalAnimations
{
// Create the demonstration.
public class InteractiveAnimationExample : Page {
private TranslateTransform interactiveTranslateTransform;
private Border containerBorder;
private Ellipse interactiveEllipse;
public InteractiveAnimationExample()
{
WindowTitle = "Interactive Animation Example";
DockPanel myPanel = new DockPanel();
myPanel.Margin = new Thickness(20.0);
containerBorder = new Border();
containerBorder.Background = System.Windows.Media.Brushes.White;
containerBorder.BorderBrush = System.Windows.Media.Brushes.Black;
containerBorder.BorderThickness = new Thickness(2.0);
containerBorder.VerticalAlignment = VerticalAlignment.Stretch;
interactiveEllipse = new Ellipse();
interactiveEllipse.Fill = System.Windows.Media.Brushes.Lime;
interactiveEllipse.Stroke = System.Windows.Media.Brushes.Black;
interactiveEllipse.StrokeThickness = 2.0;
interactiveEllipse.Width = 25;
interactiveEllipse.Height = 25;
interactiveEllipse.HorizontalAlignment = HorizontalAlignment.Left;
interactiveEllipse.VerticalAlignment = VerticalAlignment.Top;
interactiveTranslateTransform = new TranslateTransform();
interactiveEllipse.RenderTransform =
interactiveTranslateTransform;
containerBorder.MouseLeftButtonDown +=
new MouseButtonEventHandler(border_mouseLeftButtonDown);
containerBorder.MouseRightButtonDown +=
new MouseButtonEventHandler(border_mouseRightButtonDown);
containerBorder.Child = interactiveEllipse;
myPanel.Children.Add(containerBorder);
this.Content = myPanel;
}
// When the user left-clicks, use the
// SnapshotAndReplace HandoffBehavior when applying the animation.
private void border_mouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
System.Windows.Point clickPoint = Mouse.GetPosition(containerBorder);
// Set the target point so the center of the ellipse
// ends up at the clicked point.
System.Windows.Point targetPoint = new System.Windows.Point();
targetPoint.X = clickPoint.X - interactiveEllipse.Width / 2;
targetPoint.Y = clickPoint.Y - interactiveEllipse.Height / 2;
// Animate to the target point.
DoubleAnimation xAnimation =
new DoubleAnimation(targetPoint.X,
new Duration(TimeSpan.FromSeconds(4)));
interactiveTranslateTransform.BeginAnimation(
TranslateTransform.XProperty, xAnimation, HandoffBehavior.SnapshotAndReplace);
DoubleAnimation yAnimation =
new DoubleAnimation(targetPoint.Y,
new Duration(TimeSpan.FromSeconds(4)));
interactiveTranslateTransform.BeginAnimation(
TranslateTransform.YProperty, yAnimation, HandoffBehavior.SnapshotAndReplace);
// Change the color of the ellipse.
interactiveEllipse.Fill = System.Windows.Media.Brushes.Lime;
}
// When the user right-clicks, use the
// Compose HandoffBehavior when applying the animation.
private void border_mouseRightButtonDown(object sender, MouseButtonEventArgs e)
{
// Find the point where the use clicked.
System.Windows.Point clickPoint = Mouse.GetPosition(containerBorder);
// Set the target point so the center of the ellipse
// ends up at the clicked point.
System.Windows.Point targetPoint = new System.Windows.Point();
targetPoint.X = clickPoint.X - interactiveEllipse.Width / 2;
targetPoint.Y = clickPoint.Y - interactiveEllipse.Height / 2;
// Animate to the target point.
DoubleAnimation xAnimation =
new DoubleAnimation(targetPoint.X,
new Duration(TimeSpan.FromSeconds(4)));
interactiveTranslateTransform.BeginAnimation(
TranslateTransform.XProperty, xAnimation, HandoffBehavior.Compose);
DoubleAnimation yAnimation =
new DoubleAnimation(targetPoint.Y,
new Duration(TimeSpan.FromSeconds(4)));
interactiveTranslateTransform.BeginAnimation(
TranslateTransform.YProperty, yAnimation, HandoffBehavior.Compose);
// Change the color of the ellipse.
interactiveEllipse.Fill = System.Windows.Media.Brushes.Orange;
}
}
}
'
'
' This sample animates the position of an ellipse when
' the user clicks within the main border. If the user
' left-clicks, the SnapshotAndReplace HandoffBehavior
' is used when applying the animations. If the user
' right-clicks, the Compose HandoffBehavior is used
' instead.
'
'
Imports System.Windows
Imports System.Windows.Navigation
Imports System.Windows.Media
Imports System.Windows.Media.Animation
Imports System.Windows.Shapes
Imports System.Windows.Controls
Imports System.Windows.Input
Namespace Microsoft.Samples.Animation.LocalAnimations
' Create the demonstration.
Public Class InteractiveAnimationExample
Inherits Page
Private Dim interactiveTranslateTransform As TranslateTransform
Private Dim WithEvents containerBorder As Border
Private Dim interactiveEllipse As Ellipse
Public Sub New()
WindowTitle = "Interactive Animation Example"
Dim myPanel As New DockPanel()
myPanel.Margin = New Thickness(20.0)
containerBorder = new Border()
containerBorder.Background = Brushes.White
containerBorder.BorderBrush = Brushes.Black
containerBorder.BorderThickness = new Thickness(2.0)
containerBorder.VerticalAlignment = VerticalAlignment.Stretch
interactiveEllipse = new Ellipse()
interactiveEllipse.Fill = Brushes.Lime
interactiveEllipse.Stroke = Brushes.Black
interactiveEllipse.StrokeThickness = 2.0
interactiveEllipse.Width = 25
interactiveEllipse.Height = 25
interactiveEllipse.HorizontalAlignment = HorizontalAlignment.Left
interactiveEllipse.VerticalAlignment = VerticalAlignment.Top
interactiveTranslateTransform = new TranslateTransform()
interactiveEllipse.RenderTransform = _
interactiveTranslateTransform
containerBorder.Child = interactiveEllipse
myPanel.Children.Add(containerBorder)
Me.Content = myPanel
End Sub
' When the user left-clicks, use the
' SnapshotAndReplace HandoffBehavior when applying the animation.
Private Sub border_mouseLeftButtonDown( _
ByVal sender As Object, ByVal e As MouseButtonEventArgs) _
Handles containerBorder.MouseLeftButtonDown
Dim clickPoint = Mouse.GetPosition(containerBorder)
' Set the target point so the center of the ellipse
' ends up at the clicked point.
Dim targetPoint As New System.Windows.Point()
targetPoint.X = clickPoint.X - interactiveEllipse.Width / 2
targetPoint.Y = clickPoint.Y - interactiveEllipse.Height / 2
' Animate to the target point.
Dim xAnimation As _
New DoubleAnimation(targetPoint.X, _
New Duration(TimeSpan.FromSeconds(4)))
interactiveTranslateTransform.BeginAnimation( _
TranslateTransform.XProperty, xAnimation, HandoffBehavior.SnapshotAndReplace)
Dim yAnimation As _
New DoubleAnimation(targetPoint.Y, _
New Duration(TimeSpan.FromSeconds(4)))
interactiveTranslateTransform.BeginAnimation( _
TranslateTransform.YProperty, yAnimation, HandoffBehavior.SnapshotAndReplace)
' Change the color of the ellipse.
interactiveEllipse.Fill = Brushes.Lime
End Sub
' When the user right-clicks, use the
' Compose HandoffBehavior when applying the animation.
Private Sub border_mouseRightButtonDown( _
ByVal sender As Object, ByVal e As MouseButtonEventArgs) _
Handles containerBorder.MouseRightButtonDown
' Find the point where the use clicked.
Dim clickPoint = Mouse.GetPosition(containerBorder)
' Set the target point so the center of the ellipse
' ends up at the clicked point.
Dim targetPoint As New System.Windows.Point()
targetPoint.X = clickPoint.X - interactiveEllipse.Width / 2
targetPoint.Y = clickPoint.Y - interactiveEllipse.Height / 2
' Animate to the target point.
Dim xAnimation As _
New DoubleAnimation(targetPoint.X, _
New Duration(TimeSpan.FromSeconds(4)))
interactiveTranslateTransform.BeginAnimation( _
TranslateTransform.XProperty, xAnimation, HandoffBehavior.Compose)
Dim yAnimation As _
New DoubleAnimation(targetPoint.Y, _
New Duration(TimeSpan.FromSeconds(4)))
interactiveTranslateTransform.BeginAnimation( _
TranslateTransform.YProperty, yAnimation, HandoffBehavior.Compose)
' Change the color of the ellipse.
interactiveEllipse.Fill = Brushes.Orange
End Sub
End Class
End Namespace
Hinweise
Wenn die Animation BeginTime größer als 0 (null) ist, beginnt die Animation, nachdem diese Zeitspanne von dem Zeitpunkt, an dem der nächste Frame gerendert wurde, verstrichen ist.If the animation has a BeginTime that is greater than zero, the animation begins after that amount of time has elapsed from the time the next frame is rendered.
Verwenden von Compose HandoffBehaviorUsing the Compose HandoffBehavior
Wenn Sie Storyboard , AnimationTimeline oder AnimationClock auf eine Eigenschaft mithilfe von anwenden Compose HandoffBehavior , Clock verbrauchen alle Objekte, die dieser Eigenschaft zuvor zugeordnet sind, weiterhin Systemressourcen. das Zeit Steuerungssystem entfernt diese Uhren nicht automatisch.When you apply a Storyboard, AnimationTimeline, or AnimationClock to a property using the Compose HandoffBehavior, any Clock objects previously associated with that property continue to consume system resources; the timing system will not remove these clocks automatically.
Um Leistungsprobleme zu vermeiden, wenn Sie eine große Anzahl von Uhren mithilfe von anwenden Compose , sollten Sie das Verfassen von Uhren aus der animierten Eigenschaft entfernen, nachdem Sie fertiggestellt wurden.To avoid performance issues when you apply a large number of clocks using Compose, you should remove composing clocks from the animated property after they complete. Es gibt mehrere Möglichkeiten, eine Uhr zu entfernen.There are several ways to remove a clock.
Um alle Uhren aus einer Eigenschaft zu entfernen, verwenden Sie die- ApplyAnimationClock(DependencyProperty, AnimationClock) BeginAnimation(DependencyProperty, AnimationTimeline) Methode oder die-Methode des animierten Objekts.To remove all clocks from a property, use the ApplyAnimationClock(DependencyProperty, AnimationClock) or BeginAnimation(DependencyProperty, AnimationTimeline) method of the animated object. Geben Sie die zu animierende Eigenschaft als ersten Parameter und
null
als Sekunde an.Specify the property being animated as the first parameter, andnull
as the second. Dies entfernt alle Animationsuhren aus der Eigenschaft.This will remove all animation clocks from the property.Um einen bestimmten AnimationClock aus einer Liste von Uhren zu entfernen, verwenden Controller Sie die-Eigenschaft des, AnimationClock um eine abzurufen ClockController , und rufen Sie dann die- Remove Methode von auf ClockController .To remove a specific AnimationClock from a list of clocks, use the Controller property of the AnimationClock to retrieve a ClockController, then call the Remove method of the ClockController. Dies erfolgt in der Regel im Completed Ereignishandler für eine Uhr.This is typically done in the Completed event handler for a clock. Beachten Sie, dass nur Stamm Uhren von einem gesteuert werden können ClockController ; die- Controller Eigenschaft einer untergeordneten Uhr gibt zurück
null
.Note that only root clocks can be controlled by a ClockController; the Controller property of a child clock will returnnull
. Beachten Sie auch, dass das Completed Ereignis nicht aufgerufen wird, wenn die effektive Dauer der Uhr ewig ist.Note also that the Completed event will not be called if the effective duration of the clock is forever. In diesem Fall muss der Benutzer bestimmen, wann er aufgerufen werden soll Remove .In that case, the user will need to determine when to call Remove.
Dies betrifft hauptsächlich Animationen für Objekte, die eine lange Lebensdauer haben.This is primarily an issue for animations on objects that have a long lifetime. Wenn ein Objekt an den Garbage Collector übergeben wird, werden auch die Uhren getrennt und an den Garbage Collector übergeben.When an object is garbage collected, its clocks will also be disconnected and garbage collected.
Weitere Informationen zu Clock-Objekten finden Sie unter Übersicht über das Animations-und Zeit Steuerungssystem.For more information about clock objects, see the Animation and Timing System Overview.