HarmonyOS 怎么判断一个视图是否在执行动画

可以定义一个状态变量，记录当前动画的状态的。然后动画结束时触发onFinish，在onFinish里改变这个变量，通过判断这个变量的值看动画是否正在执行，参考示例如下：

@Entry
@Component
struct AnimateToExample {
  @State widthSize: number = 250
  @State heightSize: number = 100
  @State rotateAngle: number = 0
  private flag: boolean = true
  @State test: string = '动画未开始'

  build() {
    Column() {
      Text(this.test)
      Button('change size')
        .width(this.widthSize)
        .height(this.heightSize)
        .margin(30)
        .onClick(() => {
          this.test = '动画播放中'
          if (this.flag) {
            animateTo({
              duration: 2000,
              curve: Curve.EaseOut,
              iterations: 3,
              playMode: PlayMode.Normal,
              onFinish: () => {
                this.test = '动画结束'
                console.info('play end')
              }
            }, () => {
              this.widthSize = 150
              this.heightSize = 60
            })
          } else {
            animateTo({}, () => {
              this.widthSize = 250
              this.heightSize = 100
            })
          }
          this.flag = !this.flag
        })
    }.width('100%').margin({ top: 5 })
  }
}