HarmonyOS 使用半模态转场指定SheetMode为EMBEDDED时如何使用？

Question

使用半模态转场bindSheet，指定SheetMode为EMBEDDED时，弹层无法弹出，想请教具体用法，下方是相关代码，如果将SheetMode改为OVERLAY就可以弹出

build() {
  RelativeContainer() {
    Column() {}
    .width('100%')
    .height('100%')
    .alignRules({
      top: { anchor: '__container__', align: VerticalAlign.Top },
      bottom: { anchor: '__container__', align: VerticalAlign.Bottom },
      left: { anchor: '__container__', align: HorizontalAlign.Start },
      right: { anchor: '__container__', align: HorizontalAlign.End }
    });
  }
  .bindSheet(true, this.buildBottomSheet(), {
    showClose: false,
    dragBar: false,
    preferType: SheetType.BOTTOM,
    // enableOutsideInteractive:true,
    mode:SheetMode.EMBEDDED,
    detents: [122, 32, 32],
  })
  .padding({ bottom: this.bottomRectHeight })
  .width('100%')
  .height('100%')
}

@Builder
buildBottomSheet() {
  Column()
    .width('100%')
    .height('100%')
    .backgroundColor(Color.Green)
}

Answer 1

可以参考这个demo：

@Entry
@Component
struct SheetModeDemo {
  @State message: string = 'Hello World';
  @State sheetMode: boolean = false
  @Builder
  buildBottomSheet() {
    Column()
      .width('100%')
      .height('100%')
      .backgroundColor(Color.Green)
  }

  build() {
    RelativeContainer() {
      Column() {
        Button('修改模态框的值')
          .onClick(() => {
            console.log('模态框的属性值修改了')
            this.sheetMode = true
          })
      }
      .width('100%')
      .height('100%')
      .alignRules({
        top: { anchor: '__container__', align: VerticalAlign.Top },
        bottom: { anchor: '__container__', align: VerticalAlign.Bottom },
        left: { anchor: '__container__', align: HorizontalAlign.Start },
        right: { anchor: '__container__', align: HorizontalAlign.End }
      });
    }
    .bindSheet(this.sheetMode, this.buildBottomSheet(), {
      showClose: false,
      dragBar: false,
      preferType: SheetType.BOTTOM,
      // enableOutsideInteractive:true,
      mode:SheetMode.EMBEDDED,
      // mode:SheetMode.OVERLAY,
      detents: [122, 32, 32],
      onDisappear: () => {
        this.sheetMode = false
      }
    })
    //.padding({ bottom: this.bottomRectHeight })
    .width('100%')
    .height('100%')
  }

}