CompositionObject.StartAnimation 方法

public:
 virtual void StartAnimation(Platform::String ^ propertyName, CompositionAnimation ^ animation) = StartAnimation;

void StartAnimation(winrt::hstring const& propertyName, CompositionAnimation const& animation);

public void StartAnimation(string propertyName, CompositionAnimation animation);

function startAnimation(propertyName, animation)

Public Sub StartAnimation (propertyName As String, animation As CompositionAnimation)

参数

Windows 要求

示例

void AnimatingVisualOffset(Visual targetVisual) 
{ 
    var animation = _compositor.CreateVector3KeyFrameAnimation(); 

    // 
    // Define specific easing functions. 
    // 


    var linear = _compositor.CreateLinearEasingFunction(); 

    var easeIn = _compositor.CreateCubicBezierEasingFunction( 
            new Vector2(0.5f, 0.0f), new Vector2(1.0f, 1.0f)); 

    var easeOut = _compositor.CreateCubicBezierEasingFunction( 
            new Vector2(0.0f, 0.0f), new Vector2(0.5f, 1.0f)); 

    // 
    // Add a set of key frames to describe how the Offset should change over time.   
    // 

    animation.InsertKeyFrame(0.00f, new Vector3(100.0f, 100.0f, 0.0f)); 
    animation.InsertKeyFrame(0.25f, new Vector3(300.0f, 100.0f, 0.0f), easeIn); 
    animation.InsertKeyFrame(0.50f, new Vector3(300.0f, 300.0f, 0.0f), linear); 
    animation.InsertKeyFrame(0.75f, new Vector3(100.0f, 300.0f, 0.0f), linear); 
    animation.InsertKeyFrame(1.00f, new Vector3(100.0f, 100.0f, 0.0f), easeOut); 

    // 
    // The animation curve defined by the key frames will scale to match the duration. 
    // 

    animation.Duration = TimeSpan.FromMilliseconds(4000); 

    targetVisual.StartAnimation("Offset", animation); 
} 

注解

如果在调用 StartAnimation 时，动画已绑定到对象的属性，则先前应用的动画将断开连接，并分配新动画。 同样，直接设置 属性将导致上一个动画断开连接，并且新的属性值将生效。

下表显示了可动画属性的列表：

此外， CompositionEffectBrush 对象下某些效果的属性可以进行动画处理：

public:
 virtual void StartAnimation(Platform::String ^ propertyName, CompositionAnimation ^ animation, AnimationController ^ animationController) = StartAnimation;

/// [Windows.Foundation.Metadata.Overload("StartAnimationWithController")]
void StartAnimation(winrt::hstring const& propertyName, CompositionAnimation const& animation, AnimationController const& animationController);

[Windows.Foundation.Metadata.Overload("StartAnimationWithController")]
public void StartAnimation(string propertyName, CompositionAnimation animation, AnimationController animationController);

function startAnimation(propertyName, animation, animationController)

Public Sub StartAnimation (propertyName As String, animation As CompositionAnimation, animationController As AnimationController)

参数

属性

OverloadAttribute

Windows 要求

注解

参数 animationController 允许将多个动画绑定到单个控制器的 Progress 属性，这比将多个动画器 Progress 的属性绑定到 CompositionObject 属性所需的 ExpressionAnimation 对象更少。