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BounceEase Class

Represents an easing function that creates an animated bouncing effect.

Namespace:  System.Windows.Media.Animation
Assembly:  System.Windows (in System.Windows.dll)
public class BounceEase : EasingFunctionBase
<BounceEase .../>

The BounceEase type exposes the following members.

  NameDescription
Public methodSupported by Silverlight for Windows PhoneBounceEaseInitializes a new instance of the BounceEase class.
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  NameDescription
Public propertySupported by Silverlight for Windows PhoneBouncesGets or sets the number of bounces.
Public propertySupported by Silverlight for Windows PhoneBouncinessGets or sets a value that specifies how bouncy the bounce animation is. Low values of this property result in bounces with little lose of height between bounces (more bouncy) while high values result in dampened bounces (less bouncy).
Public propertySupported by Silverlight for Windows PhoneDispatcherGets the Dispatcher this object is associated with. (Inherited from DependencyObject.)
Public propertySupported by Silverlight for Windows PhoneEasingModeGets or sets a value that specifies how the animation interpolates. (Inherited from EasingFunctionBase.)
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  NameDescription
Public methodSupported by Silverlight for Windows PhoneCheckAccessDetermines whether the calling thread has access to this object. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows PhoneClearValueClears the local value of a dependency property. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows PhoneEaseTransforms normalized time to control the pace of an animation. (Inherited from EasingFunctionBase.)
Protected methodSupported by Silverlight for Windows PhoneEaseInCoreProvides the logic portion of the easing function that you can override to produce the EaseIn mode of the custom easing function. (Overrides EasingFunctionBase.EaseInCore(Double).)
Public methodSupported by Silverlight for Windows PhoneEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodSupported by Silverlight for Windows PhoneFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneGetAnimationBaseValueReturns any base value established for a Silverlight dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows PhoneGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneGetValueReturns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.)
Protected methodSupported by Silverlight for Windows PhoneMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneReadLocalValueReturns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows PhoneSetValueSets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows PhoneToStringReturns a string that represents the current object. (Inherited from Object.)
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  NameDescription
Public fieldStatic memberSupported by Silverlight for Windows PhoneBouncesPropertyIdentifies the Bounces dependency property.
Public fieldStatic memberSupported by Silverlight for Windows PhoneBouncinessPropertyIdentifies the Bounciness dependency property.
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The following graph demonstrates BounceEase using different values of EasingMode, where f(t) represents the animation progress and t represents time.

BounceEase EasingMode graphs.

You can specify how many bounces occur using the Bounces property and specify how bouncy (how elastic the bounces are) using the Bounciness property.

There are several other easing functions besides BounceEase, which you can explore using the following sample.

Run this sample

In addition to using the easing functions included in the run-time, you can create your own custom easing functions by inheriting from EasingFunctionBase.

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

Run this sample


<StackPanel x:Name="LayoutRoot" Background="White">
    <StackPanel.Resources>
        <Storyboard x:Name="myStoryboard">
            <DoubleAnimation From="30" To="200" Duration="00:00:3" 
                Storyboard.TargetName="myRectangle" 
                Storyboard.TargetProperty="Height">
                <DoubleAnimation.EasingFunction>
                    <BounceEase Bounces="2" EasingMode="EaseOut" 
                                Bounciness="2" />
                </DoubleAnimation.EasingFunction>
            </DoubleAnimation>
        </Storyboard>
    </StackPanel.Resources>

    <Rectangle x:Name="myRectangle" MouseLeftButtonDown="Mouse_Clicked" 
     Fill="Blue" Width="200" Height="30" />

</StackPanel>



// When the user clicks the rectangle, the animation
// begins. 
private void Mouse_Clicked(object sender, MouseEventArgs e)
{
    myStoryboard.Begin();
}


Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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