HarmonyOS 传递方法给下层组件调用无法调用？

Question

组件A代码：

callbackData(data: object) {
  this.data = data;
  QLog.info('RNPage=====', this.data)
}
CompA({ callbackData: this.callbackData })

组件B代码：

// @Prop public callbackData!: (data: object) => void
aboutToAppear() {
  this.callbackData({ tag: 1})
}

组件A中的callbackData方法不执行

Answer 1

参考一下代码

@Entry
@Component
struct Index {
  text: string = 'Parent:Hello world!'
  refreshPage = () => {
    console.log(`Demo ${this.text}`)
  }

  build() {
    Row() {
      Child({ refreshPage: this.refreshPage })
    }.height('100%')
  }
}



@Component
struct Child {
  refreshPage = (): void => {
  }
  @State message: string = 'Hello World';

  build() {
    Column() {
      Text(this.message)
        .fontSize(50)
        .fontWeight(FontWeight.Bold)
        .onClick(() => {
          this.refreshPage()
        })
    }
    .width('100%')
  }
}