HarmonyOS 鸿蒙Next customdialog在静态工具类中无法弹出

HarmonyOS 鸿蒙Next customdialog在静态工具类中无法弹出

@CustomDialog
struct CustomDialogExample {
  @Prop textValue: string
  controller?: CustomDialogController

  build() {
    Column() {
      Text(this.textValue).fontSize(20).margin({ top: 10, bottom: 10 })
    }.borderRadius(10)
  }
}

class Test {
  static INSTANCE = new Test();
  dialogController: CustomDialogController = new CustomDialogController({
    builder: CustomDialogExample({
      textValue: '123',
    }),
    autoCancel: true,
    onWillDismiss: (dismissDialogAction: DismissDialogAction) => {
      console.info("reason=" + JSON.stringify(dismissDialogAction.reason))
      console.log("dialog onWillDismiss")
      if (dismissDialogAction.reason == DismissReason.PRESS_BACK) {
        dismissDialogAction.dismiss()
      }
      if (dismissDialogAction.reason == DismissReason.TOUCH_OUTSIDE) {
        dismissDialogAction.dismiss()
      }
    },
  })

  show() {
    this.dialogController.open();
  }
}


@Entry
@Component
struct CustomDialogUser {
  @State textValue: string = 'test'
  dialogController: CustomDialogController = new CustomDialogController({
    builder: CustomDialogExample({
      textValue: '123',
    }),
    autoCancel: true,
    onWillDismiss: (dismissDialogAction: DismissDialogAction) => {
      console.info("reason=" + JSON.stringify(dismissDialogAction.reason))
      console.log("dialog onWillDismiss")
      if (dismissDialogAction.reason == DismissReason.PRESS_BACK) {
        dismissDialogAction.dismiss()
      }
      if (dismissDialogAction.reason == DismissReason.TOUCH_OUTSIDE) {
        dismissDialogAction.dismiss()
      }
    },
  })

  build() {
    Column() {
      Button('使用静态工具类弹出窗口')
        .onClick(() => {
          Test.INSTANCE.show();  //这个无法弹出弹窗
        })
      Button('使用成员对象弹出窗口')
        .onClick(() => {
          this.dialogController.open();
        })
    }.width('100%').margin({ top: 5 })
  }
}