HarmonyOS 使用foreach后页面未重新渲染？

ForEach(this.showPointArr, (item: boolean, index:number) => { 
  GridCol() { 
    Row() { 
      if (this.showPointArr[index]) { 
        Image($r('app.media.startIcon')) 
          .width(12) 
      } 
    }.width('100%').height('40').justifyContent(FlexAlign.Center) 
  } 
  // .animation(this.showMouse[index] ? {duration: 1100, iterations: -1} : {}) 
  .border(this.showMouse[index] ? this.btnCancelBorderActive : this.btnCancelBorder) 
  // .transition(this.showMouse[index] == true && TransitionEffect.OPACITY.animation({ duration: 1100, iterations: -1 })) 
  .animation(this.showMouse[index] ? {duration: 1100, iterations: -1} : {duration:0}) 
},(item:boolean,index:number)=>{return String(index)})