HarmonyOS 鸿蒙Next 如何关闭keyframeAnimateTo动画，或者如何实现@keyframes

HarmonyOS 鸿蒙Next 如何关闭keyframeAnimateTo动画，或者如何实现@keyframes

  starKeyframeAnim() {
    this.getUIContext?.().keyframeAnimateTo({
      iterations: -1,
    }, [
      { duration: 500, event: () => this.shadowOptionsList = this.getShadowOptionsList([5, 10, 15, 30]) },
      { duration: 500, event: () => this.shadowOptionsList = this.getShadowOptionsList([25, 35, 50, 80]) },
    ])
  }

  startAnim() {
    const textWidth = MeasureText.measureText({
      textContent: this.message,
      fontSize: 300 * (this.fontSize / 100)
    })
    this.textWidth = textWidth
    this.duration = (this.textWidth / ((this.speed / 100) * 1200))
    animateTo({
      duration: this.duration * 1000, //毫秒
      iterations: -1,
      curve: Curve.Linear
    }, () => {
      this.translateX = '-100%'
    })
  }

  stopAnim() {
    this.duration = 0
    animateTo({ duration: 0, iterations: 0, curve: Curve.Linear }, () => {
      this.translateX =
        this.slidingMode === 1 ? -((px2vp(this.textWidth) / 2) - (this.screenHeight / 2)) : this.screenHeight;
      this.shadowOptionsList = this.getShadowOptionsList()
    })
    this.getUIContext?.().keyframeAnimateTo({ iterations: 0 }, [])
  }