BounceEase BounceEase BounceEase BounceEase Class


Represents an easing function that creates an animated bouncing effect.

public : sealed class BounceEase : EasingFunctionBase, IBounceEase
struct winrt::Windows::UI::Xaml::Media::Animation::BounceEase : EasingFunctionBase, IBounceEase
public sealed class BounceEase : EasingFunctionBase, IBounceEase
Public NotInheritable Class BounceEase Inherits EasingFunctionBase Implements IBounceEase
<BounceEase .../>
Windows 10 requirements
Device family
Windows 10 (introduced v10.0.10240.0)
API contract
Windows.Foundation.UniversalApiContract (introduced v1)


The following example applies a BounceEase easing function to a DoubleAnimation to create a bouncing effect.

<StackPanel x:Name="LayoutRoot" >
        <Storyboard x:Name="myStoryboard">
            <DoubleAnimation From="1" To="6" Duration="00:00:3" 
                    <BounceEase Bounces="2" EasingMode="EaseOut" 
                                Bounciness="2" />

    <Rectangle PointerPressed="Pointer_Clicked" 
     Fill="Blue" Width="200" Height="30">
            <ScaleTransform x:Name="rectScaleTransform" />

// When the user clicks the rectangle, the animation
// begins. 
private void Pointer_Clicked(object sender, PointerRoutedEventArgs e)
' When the user clicks the rectangle, the animation
' begins. 
Private Sub Pointer_Clicked(ByVal sender As Object, ByVal e As PointerRoutedEventArgs)
End Sub


BounceEase has two controlling properties Bounciness and Bounces that affect the behavior of the function.

ElasticEase is a similar easing function that works well for physics emulation in animations. The difference with BounceEase is that an ElasticEase can go outside the From/To range. Another way to conceptualize the two easing functions is that ElasticEase is what you might use to animate the plucking of a string, whereas BounceEase is what you might use to show the bounce of a ball against a line or plane.

An easing function can be applied to the EasingFunction properties of From/To/By animations, or to the EasingFunction properties of key-frame types used for the Easing variants of key-frame animations. For more info, see Key-frame animations and easing function animations.


BounceEase() BounceEase() BounceEase() BounceEase()

Initializes a new instance of the BounceEase class.


Bounces Bounces Bounces Bounces

Gets or sets the number of bounces.

BouncesProperty BouncesProperty BouncesProperty BouncesProperty

Identifies the Bounces dependency property.

Bounciness Bounciness Bounciness Bounciness

Gets or sets a value that specifies how bouncy the bounce animation is. Low values of this property result in bounces with little loss of height between bounces (more bouncy) while high values result in dampened bounces (less bouncy).

BouncinessProperty BouncinessProperty BouncinessProperty BouncinessProperty

Identifies the Bounciness dependency property.

Dispatcher Dispatcher Dispatcher Dispatcher

Gets the CoreDispatcher that this object is associated with. The CoreDispatcher represents a facility that can access the DependencyObject on the UI thread even if the code is initiated by a non-UI thread.

(Inherited from DependencyObject)
EasingMode EasingMode EasingMode EasingMode

Gets or sets a value that specifies how the animation interpolates.

(Inherited from EasingFunctionBase)
EasingModeProperty EasingModeProperty EasingModeProperty EasingModeProperty

Identifies the EasingMode dependency property.

(Inherited from EasingFunctionBase)


ClearValue(DependencyProperty) ClearValue(DependencyProperty) ClearValue(DependencyProperty) ClearValue(DependencyProperty)

Clears the local value of a dependency property.

(Inherited from DependencyObject)
Ease(Double) Ease(Double) Ease(Double) Ease(Double)

Transforms normalized time to control the pace of an animation.

(Inherited from EasingFunctionBase)
GetAnimationBaseValue(DependencyProperty) GetAnimationBaseValue(DependencyProperty) GetAnimationBaseValue(DependencyProperty) GetAnimationBaseValue(DependencyProperty)

Returns any base value established for a dependency property, which would apply in cases where an animation is not active.

(Inherited from DependencyObject)
GetValue(DependencyProperty) GetValue(DependencyProperty) GetValue(DependencyProperty) GetValue(DependencyProperty)

Returns the current effective value of a dependency property from a DependencyObject.

(Inherited from DependencyObject)
ReadLocalValue(DependencyProperty) ReadLocalValue(DependencyProperty) ReadLocalValue(DependencyProperty) ReadLocalValue(DependencyProperty)

Returns the local value of a dependency property, if a local value is set.

(Inherited from DependencyObject)
RegisterPropertyChangedCallback(DependencyProperty,DependencyPropertyChangedCallback) RegisterPropertyChangedCallback(DependencyProperty,DependencyPropertyChangedCallback) RegisterPropertyChangedCallback(DependencyProperty,DependencyPropertyChangedCallback) RegisterPropertyChangedCallback(DependencyProperty,DependencyPropertyChangedCallback)

Registers a notification function for listening to changes to a specific DependencyProperty on this DependencyObject instance.

(Inherited from DependencyObject)
SetValue(DependencyProperty,Object) SetValue(DependencyProperty,Object) SetValue(DependencyProperty,Object) SetValue(DependencyProperty,Object)

Sets the local value of a dependency property on a DependencyObject.

(Inherited from DependencyObject)
UnregisterPropertyChangedCallback(DependencyProperty,Int64) UnregisterPropertyChangedCallback(DependencyProperty,Int64) UnregisterPropertyChangedCallback(DependencyProperty,Int64) UnregisterPropertyChangedCallback(DependencyProperty,Int64)

Cancels a change notification that was previously registered by calling RegisterPropertyChangedCallback.

(Inherited from DependencyObject)

See Also