背景：

前几篇学习了元服务，后面几期就让我们开发简单的元服务吧，里面丰富的内容大家自己加，本期案例 仅供参考

先上本期效果图 ，里面图片自行替换

效果图1完整代码案例如下：

• Index

import { authentication } from '@kit.AccountKit';
import { BusinessError } from '@kit.BasicServicesKit';
import { hilog } from '@kit.PerformanceAnalysisKit';
import { EventProposeItem } from './EventProposeItem';

@Entry
@Component
struct Index {


  build() {
    Column() {
      Text($r('app.string.EntryAbility_label')).fontSize(20).margin({ bottom: 10 })
      List({ space: 6 }) {
        ForEach(['科技前沿资讯',
          '财经商业动态',
          '文化娱乐热点',
          '健康养生领域',
          '旅游领域',
        ], (item: string) => {
          ListItem() {
            EventProposeItem({ title: item })
          }

        })
      }

    }
    .alignItems(HorizontalAlign.Start)
    .height('100%')
    .padding(8)
    .width('100%')
    .margin({ top: 40 })
  }

  aboutToAppear() {
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onCreate');
    this.loginWithHuaweiID();
  }

  /**
   * Sample code for using HUAWEI ID to log in to atomic service.
   * According to the Atomic Service Review Guide, when a atomic service has an account system,
   * the option to log in with a HUAWEI ID must be provided.
   * The following presets the atomic service to use the HUAWEI ID silent login function.
   * To enable the atomic service to log in successfully using th