CompositionObject.StartAnimationGroup(ICompositionAnimationBase) 方法

定義

命名空間:

Windows.UI.Composition

啟動動畫群組。

CompositionObject上的StartAnimationGroup 方法可讓您啟動 CompositionAnimationGroup。 群組中的所有動畫都會在 物件上同時啟動。

public:
 virtual void StartAnimationGroup(ICompositionAnimationBase ^ value) = StartAnimationGroup;

void StartAnimationGroup(ICompositionAnimationBase const& value);

public void StartAnimationGroup(ICompositionAnimationBase value);

function startAnimationGroup(value)

Public Sub StartAnimationGroup (value As ICompositionAnimationBase)

參數

value

ICompositionAnimationBase

要啟動的動畫群組。

Windows 需求

裝置系列	Windows 10 Anniversary Edition (已於 10.0.14393.0 引進)
API contract	Windows.Foundation.UniversalApiContract (已於 v3.0 引進)

範例

class PropertyAnimation
{
  PropertyAnimation(Compositor compositor, SpriteVisual heroVisual)
  {
    // Define ImplicitAnimations
    ImplicitAnimationCollection implicitAnimations = compositor.CreateImplicitAnimationCollection();

    // Animate multiple properties on the target when the “Offset” property changes. 
    CompositionAnimationGroup animationGroup = compositor.CreateCompositionAnimationGroup();

    animationGroup.Add(CreateSizeAnimation(compositor));
    animationGroup.Add(CreateRotationAnimation(compositor));

    // Set the CenterPoint so that rotation will be around the center
    heroVisual.CenterPoint = new Vector3((heroVisual.Size.X/2.0f), (heroVisual.Size.Y/2.0f), 0.0f);

    // Start AnimationGroup
    heroVisual.StartAnimationGroup(animationGroup);
  }


  Vector2KeyFrameAnimation CreateSizeAnimation(Compositor compositor)
  {
    Vector2KeyFrameAnimation animation  = compositor.CreateVector2KeyFrameAnimation();

    CubicBezierEasingFunction easing = compositor.CreateCubicBezierEasingFunction(new Vector2(0.80f, 0.0f), new Vector2(0.95f, 1.0f));

    // value (as the animation will target on the “Size” property).
    animation.InsertExpressionKeyFrame(0f, "this.StartingValue", easing);
    animation.InsertExpressionKeyFrame(1f, "this.StartingValue * 2", easing);
    animation.Duration = TimeSpan.FromSeconds(0.25);
    animation.Target = “Size”;

    return animation;
  }


  ScalarKeyFrameAnimation CreateRotationAnimation(Compositor compositor)
  {
    ScalarKeyFrameAnimation animation = compositor.CreateScalarKeyFrameAnimation();

    // Create KeyFrameAnimation to animate RotationAngleInDegrees by 90 degrees.	

    animation.InsertExpressionKeyFrame(0f, "this.StartingValue”);
    animation.InsertExpressionKeyFrame(1f, "this.StartingValue + 90.0f”);
    animation.Duration = TimeSpan.FromSeconds(0.25);
    animation.Target = “RotationAngleInDegrees”;

    return animation;
  }
}

備註

StartAnimationGroup 會採用 CompositionAnimationGroup做為參數，在物件上同時啟動群組中的所有動畫。 群組中的 CompositionAnimation 應該有指派給 Target 屬性的值。

若要取得所有動畫的 Completed 事件，應該從 CompositionScopedBatch 使用已註冊 的 Completed 事件呼叫 StartAnimationGroup。