AnimationTimeline 类

定义

定义生成输出值的时间段。Defines a segment of time over which output values are produced. 这些值用于对目标属性进行动画处理。These values are used to animate a target property.

public ref class AnimationTimeline abstract : System::Windows::Media::Animation::Timeline
public abstract class AnimationTimeline : System.Windows.Media.Animation.Timeline
type AnimationTimeline = class
    inherit Timeline
Public MustInherit Class AnimationTimeline
Inherits Timeline
继承
派生

注解

AnimationTimeline是一Timeline种对象类型, 它基于其计时进度生成输出值。An AnimationTimeline is a type of Timeline object that generates output values based on its timing progress. 所有动画类型都从AnimationTimeline继承。All animation types inherit from AnimationTimeline.

冻结功能: 由于Freezable AnimationTimeline该类继承自类, 因此该类提供若干特殊功能: AnimationTimeline可以将对象声明为、在多个对象之间共享、变为只读以提高性能、克隆以及使线程安全。Freezable Features: Because it inherits from the Freezable class, the AnimationTimeline class provides several special features: AnimationTimeline objects can be declared as , shared among multiple objects, made read-only to improve performance, cloned, and made thread-safe. 有关Freezable对象提供的不同功能的详细信息, 请参阅可冻结对象概述For more information about the different features provided by Freezable objects, see the Freezable Objects Overview.

继承者说明

若要创建自定义动画, 请重写或实现以下成员:To create a custom animation, override or implement the following members:

  • CreateInstanceCore() - If your new class is concrete, you must override CreateInstanceCore() to return a new instance of your class.

  • GetCurrentValue(Object, Object, AnimationClock)-重写此方法以返回动画的当前值。
  • GetCurrentValue(Object, Object, AnimationClock) - Override this method to return the current value of your animation.
  • 它使用三个参数: 默认的原始值、默认目标值和AnimationClockIt takes three parameters: a default origin value, a default destination value, and an AnimationClock. AnimationClock使用获取动画的当前时间或进度。Use the AnimationClock to obtain the current time or progress for the animation. 可以选择是否使用默认的原始和目标值。You can choose whether to use the default origin and destination values.
  • IsDestinationDefault-重写此属性, 以指示动画是否使用由GetCurrentValue(Object, Object, AnimationClock)方法指定的默认目标值。
  • IsDestinationDefault - Override this property to indicate whether your animation uses the default destination value specified by the GetCurrentValue(Object, Object, AnimationClock) method.

  • TargetPropertyType-重写此属性, 以Type指示动画生成的输出的。
  • TargetPropertyType - Override this property to indicate the Type of output your animation produces.
  • 如果该类不使用依赖属性存储其数据,或者它在创建后需要额外初始化,则可能需要重写其他方法;有关详细信息,请参阅 Freezable 对象概述If the class does not use dependency properties to store its data or it requires extra initialization after creation, you might need to override additional methods; see the Freezable Objects Overview for more information.

    有关创建自定义动画的详细信息, 请参阅自定义动画概述For more information about creating custom animations, see the Custom Animations Overview.

    构造函数

    AnimationTimeline()

    初始化 AnimationTimeline 类的新实例。Initializes a new instance of the AnimationTimeline class.

    字段

    IsAdditiveProperty

    标识 IsAdditive 依赖属性。Identifies the IsAdditive dependency property.

    IsCumulativeProperty

    标识 IsCumulative 依赖属性。Identifies the IsCumulative dependency property.

    属性

    AccelerationRatio

    获取或设置一个值,该值指定在将时间消逝从零加速到其最大速率过程中所占用时间线的 Duration 的百分比。Gets or sets a value specifying the percentage of the timeline's Duration spent accelerating the passage of time from zero to its maximum rate.

    (继承自 Timeline)
    AutoReverse

    获取或设置一个值,该值指示时间线在完成向前迭代后是否按相反的顺序播放。Gets or sets a value that indicates whether the timeline plays in reverse after it completes a forward iteration.

    (继承自 Timeline)
    BeginTime

    获取或设置此 Timeline 应开始的时间。Gets or sets the time at which this Timeline should begin.

    (继承自 Timeline)
    CanFreeze

    获取一个值,该值指示是否可将对象变为不可修改。Gets a value that indicates whether the object can be made unmodifiable.

    (继承自 Freezable)
    DecelerationRatio

    获取或设置一个值,该值指定在将时间消逝从其最大速率减速到零的过程中所占用时间线的 Duration 的百分比。Gets or sets a value specifying the percentage of the timeline's Duration spent decelerating the passage of time from its maximum rate to zero.

    (继承自 Timeline)
    DependencyObjectType

    获取对此实例的 CLRCLR 类型进行包装的 DependencyObjectTypeGets the DependencyObjectType that wraps the CLRCLR type of this instance.

    (继承自 DependencyObject)
    Dispatcher

    获取与此 Dispatcher 关联的 DispatcherObjectGets the Dispatcher this DispatcherObject is associated with.

    (继承自 DispatcherObject)
    Duration

    获取或设置此时间线播放的时间长度,而不是计数重复。Gets or sets the length of time for which this timeline plays, not counting repetitions.

    (继承自 Timeline)
    FillBehavior

    获取或设置一个值,该值指定 Timeline 在活动周期结束后的行为方式。Gets or sets a value that specifies how the Timeline behaves after it reaches the end of its active period.

    (继承自 Timeline)
    HasAnimatedProperties

    获取一个值,该值指示一个或多个 AnimationClock 对象是否与此对象的任何依赖项属性相关联。Gets a value that indicates whether one or more AnimationClock objects is associated with any of this object's dependency properties.

    (继承自 Animatable)
    IsDestinationDefault

    获取一个值,该值指示此动画是否将 GetCurrentValue(Object, Object, AnimationClock) 方法的 defaultDestinationValue 参数用作其目标值。Gets a value that indicates whether this animation uses the defaultDestinationValue parameter of the GetCurrentValue(Object, Object, AnimationClock) method as its destination value.

    IsFrozen

    获取一个值,该值指示对象当前是否可修改。Gets a value that indicates whether the object is currently modifiable.

    (继承自 Freezable)
    IsSealed

    获取一个值,该值指示此实例当前是否为密封的(只读)。Gets a value that indicates whether this instance is currently sealed (read-only).

    (继承自 DependencyObject)
    Name

    获取或设置此 Timeline 的名称。Gets or sets the name of this Timeline.

    (继承自 Timeline)
    RepeatBehavior

    获取或设置此时间线的重复行为。Gets or sets the repeating behavior of this timeline.

    (继承自 Timeline)
    SpeedRatio

    获取或设置此 Timeline 的时间相对于其父级的前进速率。Gets or sets the rate, relative to its parent, at which time progresses for this Timeline.

    (继承自 Timeline)
    TargetPropertyType

    当在派生类中重写时,获取可进行动画处理的属性的 TypeWhen overridden in a derived class, gets the Type of property that can be animated.

    方法

    AllocateClock()

    为此 Clock 创建一个 AnimationTimelineCreates a Clock for this AnimationTimeline.

    ApplyAnimationClock(DependencyProperty, AnimationClock)

    AnimationClock 应用到指定的 DependencyPropertyApplies an AnimationClock to the specified DependencyProperty. 如果该属性已进行动画处理,则使用 SnapshotAndReplace 切换行为。If the property is already animated, the SnapshotAndReplace handoff behavior is used.

    (继承自 Animatable)
    ApplyAnimationClock(DependencyProperty, AnimationClock, HandoffBehavior)

    AnimationClock 应用到指定的 DependencyPropertyApplies an AnimationClock to the specified DependencyProperty. 如果该属性已进行动画处理,则使用指定的 HandoffBehaviorIf the property is already animated, the specified HandoffBehavior is used.

    (继承自 Animatable)
    BeginAnimation(DependencyProperty, AnimationTimeline)

    将动画应用于指定 DependencyPropertyApplies an animation to the specified DependencyProperty. 动画会在呈现下一帧时启动。The animation is started when the next frame is rendered. 如果指定属性已进行动画处理,则使用 SnapshotAndReplace 切换行为。If the specified property is already animated, the SnapshotAndReplace handoff behavior is used.

    (继承自 Animatable)
    BeginAnimation(DependencyProperty, AnimationTimeline, HandoffBehavior)

    将动画应用于指定 DependencyPropertyApplies an animation to the specified DependencyProperty. 动画会在呈现下一帧时启动。The animation is started when the next frame is rendered. 如果指定的属性已进行动画处理,则使用指定的 HandoffBehaviorIf the specified property is already animated, the specified HandoffBehavior is used.

    (继承自 Animatable)
    CheckAccess()

    确定调用线程是否可以访问此 DispatcherObjectDetermines whether the calling thread has access to this DispatcherObject.

    (继承自 DispatcherObject)
    ClearValue(DependencyProperty)

    清除属性的本地值。Clears the local value of a property. 要清除的属性由 DependencyProperty 标识符指定。The property to be cleared is specified by a DependencyProperty identifier.

    (继承自 DependencyObject)
    ClearValue(DependencyPropertyKey)

    清除只读属性的本地值。Clears the local value of a read-only property. 要清除的属性由 DependencyPropertyKey 指定。The property to be cleared is specified by a DependencyPropertyKey.

    (继承自 DependencyObject)
    Clone()

    创建此 AnimationTimeline 的可修改克隆,从而深度复制此对象的值。Creates a modifiable clone of this AnimationTimeline, making deep copies of this object's values. 在复制依赖项属性时,此方法会复制资源引用和数据绑定(但可能不再解析),但不复制动画或其当前值。When copying dependency properties, this method copies resource references and data bindings (but they might no longer resolve) but not animations or their current values.

    CloneCore(Freezable)

    使用基(未经过动画处理的)属性值使该实例成为指定 Freezable 的克隆(深层复制)。Makes the instance a clone (deep copy) of the specified Freezable using base (non-animated) property values.

    (继承自 Freezable)
    CloneCurrentValue()

    创建此 Timeline 对象的可修改复本,从而深度复制此对象的当前值。Creates a modifiable clone of this Timeline object, making deep copies of this object's current values.

    (继承自 Timeline)
    CloneCurrentValueCore(Freezable)

    使用当前属性值使该实例成为指定 Freezable 的可修改克隆(深层复制)。Makes the instance a modifiable clone (deep copy) of the specified Freezable using current property values.

    (继承自 Freezable)
    CoerceValue(DependencyProperty)

    对指定依赖属性的值进行强制。Coerces the value of the specified dependency property. 通过对调用方 DependencyObject 上存在的依赖属性的属性元数据中所指定的任何 CoerceValueCallback 函数进行调用来完成此操作。This is accomplished by invoking any CoerceValueCallback function specified in property metadata for the dependency property as it exists on the calling DependencyObject.

    (继承自 DependencyObject)
    CreateClock()

    从此 AnimationTimeline 创建新的 AnimationClockCreates a new AnimationClock from this AnimationTimeline.

    CreateClock(Boolean)

    从此 Clock 创建一个新的 Timeline 并指定新的 Clock 是否可以控制。Creates a new Clock from this Timeline and specifies whether the new Clock is controllable. 如果此 Timeline 含有子级,则创建时钟树时将此 Timeline 作为根。If this Timeline has children, a tree of clocks is created with this Timeline as the root.

    (继承自 Timeline)
    CreateInstance()

    初始化 Freezable 类的新实例。Initializes a new instance of the Freezable class.

    (继承自 Freezable)
    CreateInstanceCore()

    在派生类中实现时,创建 Freezable 派生类的新实例。When implemented in a derived class, creates a new instance of the Freezable derived class.

    (继承自 Freezable)
    Equals(Object)

    确定提供的 DependencyObject 是否等效于当前 DependencyObjectDetermines whether a provided DependencyObject is equivalent to the current DependencyObject.

    (继承自 DependencyObject)
    Freeze()

    使当前对象不可修改,并且将其 IsFrozen 属性设置为 trueMakes the current object unmodifiable and sets its IsFrozen property to true.

    (继承自 Freezable)
    FreezeCore(Boolean)

    使此 Timeline 成为不可修改的,或确定是否可使其成为不可修改的。Makes this Timeline unmodifiable or determines whether it can be made unmodifiable.

    (继承自 Timeline)
    GetAnimationBaseValue(DependencyProperty)

    返回指定的 DependencyProperty 的未经过动画处理的值。Returns the non-animated value of the specified DependencyProperty.

    (继承自 Animatable)
    GetAsFrozen()

    使用基(未经过动画处理的)属性值创建 Freezable 的冻结副本。Creates a frozen copy of the Freezable, using base (non-animated) property values. 由于副本已冻结,因此将通过引用复制任何冻结的子对象。Because the copy is frozen, any frozen sub-objects are copied by reference.

    (继承自 Freezable)
    GetAsFrozenCore(Freezable)

    使此实例成为指定 Timeline 对象的副本。Makes this instance a clone of the specified Timeline object.

    (继承自 Timeline)
    GetCurrentValue(Object, Object, AnimationClock)

    获取动画的当前值。Gets the current value of the animation.

    GetCurrentValueAsFrozen()

    使用当前属性值创建 Freezable 的冻结副本。Creates a frozen copy of the Freezable using current property values. 由于副本已冻结,因此将通过引用复制任何冻结的子对象。Because the copy is frozen, any frozen sub-objects are copied by reference.

    (继承自 Freezable)
    GetCurrentValueAsFrozenCore(Freezable)

    使此实例成为指定 Timeline 的冻结复本。Makes this instance a frozen clone of the specified Timeline. 不复制资源引用、数据绑定和动画,而是复制其当前值。Resource references, data bindings, and animations are not copied, but their current values are.

    (继承自 Timeline)
    GetHashCode()

    获取此 DependencyObject 的哈希代码。Gets a hash code for this DependencyObject.

    (继承自 DependencyObject)
    GetLocalValueEnumerator()

    创建一个专用的枚举数,用于确定哪些依赖项属性在此 DependencyObject 上具有以本地方式设置的值。Creates a specialized enumerator for determining which dependency properties have locally set values on this DependencyObject.

    (继承自 DependencyObject)
    GetNaturalDuration(Clock)

    返回此 Timeline 单次迭代的长度。Returns the length of a single iteration of this Timeline.

    (继承自 Timeline)
    GetNaturalDurationCore(Clock)

    返回此 AnimationTimeline 单次迭代的长度。Returns the length of a single iteration of this AnimationTimeline.

    GetType()

    获取当前实例的 TypeGets the Type of the current instance.

    (继承自 Object)
    GetValue(DependencyProperty)

    DependencyObject 的此实例返回依赖属性的当前有效值。Returns the current effective value of a dependency property on this instance of a DependencyObject.

    (继承自 DependencyObject)
    InvalidateProperty(DependencyProperty)

    重新评估指定依赖属性的有效值。Re-evaluates the effective value for the specified dependency property.

    (继承自 DependencyObject)
    MemberwiseClone()

    创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

    (继承自 Object)
    OnChanged()

    修改当前 Freezable 对象时调用。Called when the current Freezable object is modified.

    (继承自 Freezable)
    OnFreezablePropertyChanged(DependencyObject, DependencyObject)

    确保为刚刚设置的 DependencyObjectType 数据成员建立适当的上下文指针。Ensures that appropriate context pointers are established for a DependencyObjectType data member that has just been set.

    (继承自 Freezable)
    OnFreezablePropertyChanged(DependencyObject, DependencyObject, DependencyProperty)

    此成员支持 Windows Presentation Foundation (WPF)Windows Presentation Foundation (WPF) 基础结构,但不能在代码中直接使用。This member supports the Windows Presentation Foundation (WPF)Windows Presentation Foundation (WPF) infrastructure and is not intended to be used directly from your code.

    (继承自 Freezable)
    OnPropertyChanged(DependencyPropertyChangedEventArgs)

    重写 OnPropertyChanged(DependencyPropertyChangedEventArgs)DependencyObject 实现,以同时调用任何响应类型 Freezable 不断变化的依赖属性的 Changed 处理程序。Overrides the DependencyObject implementation of OnPropertyChanged(DependencyPropertyChangedEventArgs) to also invoke any Changed handlers in response to a changing dependency property of type Freezable.

    (继承自 Freezable)
    ReadLocalValue(DependencyProperty)

    如果存在,则返回依赖属性的本地值。Returns the local value of a dependency property, if it exists.

    (继承自 DependencyObject)
    ReadPreamble()

    确保正在从有效的线程访问 FreezableEnsures that the Freezable is being accessed from a valid thread. Freezable 的继承者必须在任何 API 一开始读取不属于依赖项对象的数据成员时调用此方法。Inheritors of Freezable must call this method at the beginning of any API that reads data members that are not dependency properties.

    (继承自 Freezable)
    SetCurrentValue(DependencyProperty, Object)

    设置依赖属性的值而不更改其值源。Sets the value of a dependency property without changing its value source.

    (继承自 DependencyObject)
    SetValue(DependencyProperty, Object)

    设置依赖属性的本地值,该值由其依赖属性标识符指定。Sets the local value of a dependency property, specified by its dependency property identifier.

    (继承自 DependencyObject)
    SetValue(DependencyPropertyKey, Object)

    设置一个只读依赖属性的本地值,该值由依赖属性的 DependencyPropertyKey 标识符指定。Sets the local value of a read-only dependency property, specified by the DependencyPropertyKey identifier of the dependency property.

    (继承自 DependencyObject)
    ShouldSerializeProperty(DependencyProperty)

    返回一个值,该值指示序列化进程是否应序列化所提供的依赖属性的值。Returns a value that indicates whether serialization processes should serialize the value for the provided dependency property.

    (继承自 DependencyObject)
    ToString()

    返回表示当前对象的字符串。Returns a string that represents the current object.

    (继承自 Object)
    VerifyAccess()

    强制调用线程具有此 DispatcherObject 的访问权限。Enforces that the calling thread has access to this DispatcherObject.

    (继承自 DispatcherObject)
    WritePostscript()

    引发 FreezableChanged 事件并调用其 OnChanged() 方法。Raises the Changed event for the Freezable and invokes its OnChanged() method. Freezable 派生的类应在修改的类成员不存储为依赖属性的任何 API 的末尾调用此方法。Classes that derive from Freezable should call this method at the end of any API that modifies class members that are not stored as dependency properties.

    (继承自 Freezable)
    WritePreamble()

    验证 Freezable 是否未被冻结,并且是否正在从有效的线程上下文中访问它。Verifies that the Freezable is not frozen and that it is being accessed from a valid threading context. Freezable 的继承项应当在任何 API 一开始写入不属于依赖项属性的数据成员时调用此方法。Freezable inheritors should call this method at the beginning of any API that writes to data members that are not dependency properties.

    (继承自 Freezable)

    事件

    Changed

    在修改 Freezable 或其包含的对象时发生。Occurs when the Freezable or an object it contains is modified.

    (继承自 Freezable)
    Completed

    当此时间线完全播放完毕时发生:它将不再进入其活动周期。Occurs when this timeline has completely finished playing: it will no longer enter its active period.

    (继承自 Timeline)
    CurrentGlobalSpeedInvalidated

    在时间线时钟的时间前进速率发生变化时发生。Occurs when the rate at which time progresses for the timeline's clock changes.

    (继承自 Timeline)
    CurrentStateInvalidated

    更新时间线的 ClockCurrentState 属性时发生。Occurs when the CurrentState property of the timeline's Clock is updated.

    (继承自 Timeline)
    CurrentTimeInvalidated

    更新时间线的 ClockCurrentTime 属性时发生。Occurs when the CurrentTime property of the timeline's Clock is updated.

    (继承自 Timeline)
    RemoveRequested

    当移除为此时间线创建的时钟或其中一个父时间线时发生。Occurs when the clock created for this timeline or one of its parent timelines is removed.

    (继承自 Timeline)

    适用于

    另请参阅