HarmonyOS 鸿蒙Next如何结束一个无限循环的关键帧动画

 可以通过新启一个duration为0的animateTo动画来打断原有动画效果，参考如下demo

import { UIContext } from '[@kit](/user/kit).ArkUI';

[@Entry](/user/Entry)
[@Component](/user/Component)
struct KeyframeDemo {
 [@State](/user/State) myScale: number = 1.0;
 uiContext: UIContext | undefined = undefined;
 [@State](/user/State) isRecording: boolean = false;


 aboutToAppear() {
   this.uiContext = this.getUIContext?.();
 }

 build() {
   Column() {
     Circle()
       .width(100)
       .height(100)
       .fill("#46B1E3")
       .margin(100)
       .scale({ x: this.myScale, y: this.myScale })
       .onClick(() => {
         if (!this.uiContext) {
           console.info("no uiContext, keyframe failed");
           return;
         }
         this.myScale = 1;
         // 设置关键帧动画整体播放无限次
         if(this.isRecording){
           this.uiContext.keyframeAnimateTo({ iterations: -1 }, [
             {
               // 关键帧动画时长为800ms，scale属性做从1到1.5的动画
               duration: 800,
               event: () => {
                 this.myScale = 1.5;
               }
             }
           ])
           this.isRecording=false
           animateTo({ duration: 0, iterations: 1, playMode: PlayMode.Normal }, () => {
             this.myScale = 1
           })

         }else{
           this.isRecording=true
           animateTo({ duration: 1500, iterations: -1, }, () => {
             this.myScale = 0.5;
           })
         }

       })
   }.width('100%').margin({ top: 5 })
 }
}