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nuke-animated

v0.2.2

Published

动画

Downloads

19

Readme

Animated

  • category: API
  • chinese: 动画
  • type: API

** 注意,这个动画库体积非常庞大, 建议使用 Transition 代替 **

API

Animated 用来创造流畅、强大、并且易于构建和维护的动画。

只有声明为可动画化的组件才能被关联动画。比如: View、Text,还有Image都是可动画化的。

属性:

  • Value: AnimatedValue

    • 表示一个数值的类,用于驱动动画;
    • 通常用new Animated.Value(0);来初始化。
  • ValueXY: AnimatedValueXY

    • 表示一个2D值的类,用来驱动2D动画,例如拖动操作等。

方法:

  • static decay(value: AnimatedValue | AnimatedValueXY, config: DecayAnimationConfig)

    • 推动一个值以一个初始的速度和一个衰减系数逐渐变为0。
  • static timing(value: AnimatedValue | AnimatedValueXY, config: TimingAnimationConfig)

    • 推动一个值按照一个过渡曲线而随时间变化。Easing模块定义了一大堆曲线,你也可以使用你自己的函数。
  • static spring(value: AnimatedValue | AnimatedValueXY, config: SpringAnimationConfig)

    • 产生一个基于Rebound和Origami实现的Spring动画。它会在toValue值更新的同时跟踪当前的速度状态,以确保动画连贯。可以链式调用。
  • static add(a: Animated, b: Animated)

    • 将两个动画值相加计算,创建一个新的动画值。
  • static multiply(a: Animated, b: Animated)

    • 将两个动画值相乘计算,创建一个新的动画值。
  • static delay(time: number)

    • 在指定的延迟之后开始动画。
  • static sequence(animations: Array)

    • 按顺序执行一个动画数组里的动画,等待一个完成后再执行下一个。如果当前的动画被中止,后面的动画则不会继续执行。
  • static parallel(animations: Array, config?: ParallelConfig)

    • 同时开始一个动画数组里的全部动画。默认情况下,如果有任何一个动画停止了,其余的也会被停止。你可以通过stopTogether选项来改变这个效果。
  • static stagger(time: number, animations: Array)

    • 一个动画数组,里面的动画有可能会同时执行(重叠),不过会以指定的延迟来开始。用来制作拖尾效果非常合适。
  • static event(argMapping: Array, config?: EventConfig)

    • 接受一个映射的数组,对应的解开每个值,然后调用所有对应的输出的setValue方法。
    • 例如:
 onScroll={this.AnimatedEvent(
   [{nativeEvent: {contentOffset: {x: this._scrollX}}}]
   {listener},          // 可选的异步监听函数
 )
 ...
 onPanResponderMove: this.AnimatedEvent([
   null,                // 忽略原始事件
   {dx: this._panX},    // 手势状态参数
 ]),