HarmonyOS 如何修改CustomDialog默认动画？

Question

使用CustomDialog的时候，dialog在屏幕底部，弹出的时候，希望类似BootSheetDialog那样从底部划入和划出的效果，怎么实现？

Answer 1

尝试下如下demo：

@CustomDialog
struct CustomDialogExample {
  controller: CustomDialogController = new CustomDialogController({
    builder: CustomDialogExample({}),
    autoCancel: false
  })
  @State showFlag: Visibility = Visibility.Visible;
  @State isAutoCancel: boolean = false;
  anmDuration: number = 300
  textController: TextAreaController = new TextAreaController()

  build() {
    Column() {
      Row() {
        Text("自定义动画的弹窗")
      }.borderRadius(20).backgroundColor('#ff6288cb').height(200).width('100%')
    }
    .margin({ top: 10 })
    .justifyContent(FlexAlign.Center)
    .onClick(() => {
      console.log("dialogClick")
      if (this.isAutoCancel) {
        console.log("dialogClick2")
        this.cancel();
      }
    })
    .visibility(this.showFlag)
    // 定义进场出场转场动画效果
    .transition(TransitionEffect.OPACITY.animation({ duration: this.anmDuration })
      .combine(TransitionEffect.translate({ y: 300 })))
  }

  // 延迟关闭弹窗，让自定义的出场动画显示
  cancel() {
    this.showFlag = Visibility.Hidden
    console.log("closeDialog")
    setTimeout(() => {
      this.controller.close()
    }, this.anmDuration)
  }
}

@Entry
@Component
struct CustomDialogPage {
  @State isAutoCancel: boolean = true;
  dialogController: CustomDialogController = new CustomDialogController({
    builder: CustomDialogExample({ isAutoCancel: this.isAutoCancel }),
    autoCancel: false,
    customStyle: true,
    alignment: DialogAlignment.Bottom
  })

  build() {
    Column() {
      Button('click me').onClick(() => {
        this.dialogController.open()
      })
    }.width('100%').height('100%')
  }
}