HarmonyOS NEXT 实战之元服务：静态案例效果--航空出行

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

在这里插入图片描述

效果图1完整代码案例如下：

import { authentication } from '@kit.AccountKit';
import { BusinessError } from '@kit.BasicServicesKit';
import { hilog } from '@kit.PerformanceAnalysisKit';
import { promptAction } from '@kit.ArkUI';

@Entry
@Component
struct Index {
  build() {
    Column() {
      Text($r('app.string.EntryAbility_label')).padding(5).fontSize(20)

      Column({ space: 20 }) {
        Row({ space: 5 }) {
          Text().width(8).height(8).backgroundColor(Color.Blue).borderRadius(4)
          Text('起始点：')
          TextInput({ text: '北京' }).width(200).fontSize(18)
        }

        Row({ space: 5 }) {
          Text().width(8).height(8).backgroundColor(Color.Green).borderRadius(4)
          Text('中间换乘点：')
          TextInput({ text: '上海' }).width(170).fontSize(18)
        }

        Row({ space: 5 }) {
          Text().width(8).height(8).backgroundColor(Color.Red).borderRadius(4)
          Text('终点站：')
          TextInput({ text: '巴基斯坦' }).width(200).fontSize(18)
        }

      }
      .height('30%')
      .width('90%')
      .alignItems(HorizontalAlign.Start)
      .padding(16)
      .margin({ top: 30 })
      .borderWidth(1)
      .borderRadius(10)
      .borderColor(Color.Gray)

      Button('确定行程')
        .fontColor(Color.White)
        .height(40)
        .margin({ top: 50 })
        .backgroundColor('#0CE5FF')
        .width('80%')
        .onClick(() => {
          promptAction.showToast({
            message: '今日机器出现故障，请找工作室人员解决'
          });
        })


      Row() {
        Text('出行灵感')
          .fontSize(18)
          .fontColor(Color.Black)

        Text('上海出行 >')
          .fontSize(15)
          .fontColor(Color.Black)
      }
      .justifyContent(FlexAlign.SpaceBetween)
      .width('90%')
      .padding(10)
      .onClick(() => {
      })
      .margin({ top: 50 })

      Row({ space: 20 }) {
        Column({ space: 10 }) {
          Text('港澳台游').fontWeight(FontWeight.Bold).fontSize(15).fontColor(Color.White)
          Text('购物与美食的天堂').fontSize(10).fontColor('#222222')
          Column({ space: 10 }) {
            Text('上海   ->   澳门').fontWeight(FontWeight.Bold).fontSize(13).fontColor('#5A5A5A')
            Row() {
              Text('12月30日 | 周一').fontSize(10).fontColor('#CAC8C9')
              Text('¥400').fontSize(15).fontColor(Color.Red).fontWeight(FontWeight.Bold).margin({ left: 8 })
            }
          }
          .width('100%')
          .borderRadius(4)
          .backgroundColor('#F5F9F8')
          .padding(8)
          .alignItems(HorizontalAlign.Start)

          Column({ space: 10 }) {
            Text('上海   ->   香港').fontWeight(FontWeight.Bold).fontSize(13).fontColor('#5A5A5A')
            Row() {
              Text('12月11日 | 周三').fontSize(10).fontColor('#CAC8C9')
              Text('¥456').fontSize(15).fontColor(Color.Red).fontWeight(FontWeight.Bold).margin({ left: 8 })
            }
          }
          .width('100%')
          .borderRadius(4)
          .backgroundColor('#F5F9F8')
          .padding(8)
          .alignItems(HorizontalAlign.Start)

        }
        .width('40%')
        .borderRadius(4)
        .backgroundColor('#73DCBD')
        .padding(8)
        .alignItems(HorizontalAlign.Start)

        Column({ space: 10 }) {
          Text('东南亚游').fontWeight(FontWeight.Bold).fontSize(15).fontColor(Color.White)
          Text('体验东南亚热情').fontSize(10).fontColor('#222222')
          Column({ space: 10 }) {
            Text('上海   ->   普吉岛').fontWeight(FontWeight.Bold).fontSize(13).fontColor('#5A5A5A')
            Row() {
              Text('12月3日 | 周一').fontSize(10).fontColor('#CAC8C9')
              Text('¥600').fontSize(15).fontColor(Color.Red).fontWeight(FontWeight.Bold).margin({ left: 8 })
            }
          }
          .width('100%')
          .borderRadius(4)
          .backgroundColor('#F5F9F8')
          .padding(8)
          .alignItems(HorizontalAlign.Start)

          Column({ space: 10 }) {
            Text('上海   ->   曼谷').fontWeight(FontWeight.Bold).fontSize(13).fontColor('#5A5A5A')
            Row() {
              Text('12月01日 | 周日').fontSize(10).fontColor('#CAC8C9')
              Text('¥607').fontSize(15).fontColor(Color.Red).fontWeight(FontWeight.Bold).margin({ left: 8 })
            }
          }
          .width('100%')
          .borderRadius(4)
          .backgroundColor('#F5F9F8')
          .padding(8)
          .alignItems(HorizontalAlign.Start)

        }
        .width('40%')
        .borderRadius(4)
        .backgroundColor('#41C7FF')
        .padding(8)
        .alignItems(HorizontalAlign.Start)
      }

    }
    .height('100%')
    .width('100%')
    .margin({ top: 60 })
    .backgroundColor('#EFD16E')

  }

  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 the HUAWEI ID, please refer
   * to the HarmonyOS HUAWEI ID Access Guide to configure the client ID and fingerprint certificate.
   */
  private loginWithHuaweiID() {
    // Create a login request and set parameters
    let loginRequest = new authentication.HuaweiIDProvider().createLoginWithHuaweiIDRequest();
    // Whether to forcibly launch the HUAWEI ID login page when the user is not logged in with the HUAWEI ID
    loginRequest.forceLogin = false;
    // Execute login request
    let controller = new authentication.AuthenticationController();
    controller.executeRequest(loginRequest).then((data) => {
      let loginWithHuaweiIDResponse = data as authentication.LoginWithHuaweiIDResponse;
      let authCode = loginWithHuaweiIDResponse.data?.authorizationCode;
      // Send authCode to the backend in exchange for unionID, session

    }).catch((error: BusinessError) => {
      hilog.error(0x0000, 'testTag', 'error: %{public}s', JSON.stringify(error));
      if (error.code == authentication.AuthenticationErrorCode.ACCOUNT_NOT_LOGGED_IN) {
        // HUAWEI ID is not logged in, it is recommended to jump to the login guide page

      }
    });
  }
}