BounceEase Class
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Represents an easing function that creates an animated bouncing effect.
System.Windows::DependencyObject
System.Windows.Media.Animation::EasingFunctionBase
System.Windows.Media.Animation::BounceEase
Assembly: System.Windows (in System.Windows.dll)
XMLNS for XAML: Not mapped to an xmlns.
The BounceEase type exposes the following members.
| Name | Description | |
|---|---|---|
 | Bounces | Gets or sets the number of bounces. |
| Bounciness | Gets 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). |
| Dispatcher | Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.) |
| EasingMode | Gets or sets a value that specifies how the animation interpolates. (Inherited from EasingFunctionBase.) |
| Name | Description | |
|---|---|---|
 | CheckAccess | Determines whether the calling thread has access to this object. (Inherited from DependencyObject.) |
| ClearValue | Clears the local value of a dependency property. (Inherited from DependencyObject.) |
| Ease | Transforms normalized time to control the pace of an animation. (Inherited from EasingFunctionBase.) |
 | EaseInCore | Provides 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).) |
| Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
| Finalize | Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
| GetAnimationBaseValue | Returns any base value established for a Windows Phone dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| GetValue | Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| ReadLocalValue | Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.) |
| SetValue | Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
| Name | Description | |
|---|---|---|
  | BouncesProperty | Identifies the Bounces dependency property. |
| BouncinessProperty | Identifies the Bounciness dependency property. |
The following graph demonstrates BounceEase using different values of EasingMode, where f(t) represents the animation progress and t represents time.
You can specify how many bounces occur using the Bounces property and specify how bouncy (how elastic the bounces are) using the Bounciness property.
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.
<StackPanel x:Name="LayoutRoot" Background="Transparent"> <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>