HarmonyOS 鸿蒙Next怎么修改自定义弹窗的默认动画

[@CustomDialog](/user/CustomDialog)
struct CustomDialogExample {
  controller: CustomDialogController = new CustomDialogController({
    builder: CustomDialogExample({}),
    autoCancel: false
  })
  [@State](/user/State) showFlag: Visibility = Visibility.Visible;
  [@State](/user/State) isAutoCancel: boolean = false;
  textController: TextAreaController = new TextAreaController()
  build() {
    Column() {
      Row() {
        TextArea({ controller: this.textController })
          .fontSize(20)
      }
      .padding(8)
      .backgroundColor(’#FFFFFF’)
      .height(200)
        .margin({ bottom: -5 })
        .width(‘100%’)
    }
    .justifyContent(FlexAlign.End)
    .width(‘100%’)
    .height(“100%”)
    .margin({
      bottom: -15
    })
      .onClick(() => {
        console.log(“dialogClick”)
        if (this.isAutoCancel) {
          console.log(“dialogClick2”)
          this.cancel();
        }
      })
      .visibility(this.showFlag)
      .transition(TransitionEffect.OPACITY.animation({ duration: anmDuration })
        .combine(TransitionEffect.translate({ y: 100 })))
  }
  cancel() {
    this.showFlag = Visibility.Hidden
    console.log(“closeDialog”)
    setTimeout(() => {
      this.controller.close()
    }, anmDuration)
  }
}
[@Entry](/user/Entry)
[@Component](/user/Component)
struct CustomDialogUser {
  [@State](/user/State) isAutoCancel: boolean = true;
  dialogController: CustomDialogController = new CustomDialogController({
    builder: CustomDialogExample({ isAutoCancel: this.isAutoCancel }),
    autoCancel: this.isAutoCancel,
    customStyle: true
  })
  build() {
    Column() {
      Button(‘click me’)
      .onClick(() => {
        this.dialogController.open()
      })
    }.width(‘100%’)
    .height(‘100%’)
    .onClick(() => {
    })
  }