HarmonyOS NEXT 实战之元服务：静态案例效果---妙语集语

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：

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

@Entry
@ComponentV2
struct Index {
  readonly PAGE_FULL: string = "100%";
  readonly PRE_96: string = "96%";
  readonly SIZE_40: number = 40;
  readonly SIZE_30: number = 30;
  readonly SIZE_20: number = 20;
  readonly SIZE_16: number = 16;
  readonly SIZE_8: number = 8;
  readonly SIZE_4: number = 4;
  @Local origin: string = '山园小梅・其一'
  @Local author: string = '林逋'
  @Local content: string = '疏影横斜水清浅，暗香浮动月黄昏。'
  @Local category: string = '古诗文 - 自然 - 梅花'
  @Local status: number = 0

  //   {
  //   "content": "疏影横斜水清浅，暗香浮动月黄昏。",
  //   "author": "林逋",
  //   "origin": "山园小梅・其一",
  //   "category": "古诗文 - 自然 - 梅花"
  // },
  // {
  //   "content": "秋风生渭水，落叶满长安。",
  // "author": "贾岛",
  // "origin": "忆江上吴处士",
  // "category": "古诗文 - 四季 - 秋天"
  // },
  // {
  //   "content": "等闲识得东风面，万紫千红总是春。",
  // "author": "朱熹",
  // "origin": "春日",
  // "category": "古诗文 - 四季 - 春天"
  // }
  build() {
    Column() {
      Row({ space: this.SIZE_8 }) {
        Image($r('app.media.miaoyujiyu'))
          .width(this.SIZE_20)
          .height(this.SIZE_20)

        Text($r('app.string.EntryAbility_label'))
          .fontSize(14)
          .fontColor(Color.White)
      }
      .width(this.PAGE_FULL)
      .borderRadius({ topLeft: 12, topRight: 12 })
      .height(this.SIZE_40)
      .linearGradient({
        angle: 45,
        colors: [['#51A3AF', 0.1], ['#468C9E', 1.0]]
      })
      .padding({
        left: this.SIZE_16,
        right: this.SIZE_16
      })

      Column({ space: this.SIZE_8 }) {
        Text(this.origin)
          .fontSize(18)
          .fontWeight(FontWeight.Bolder)
          .fontColor('#3F3F61')
        Text(this.author)
          .fontSize(14)
          .fontWeight(FontWeight.Medium)
          .fontColor('#9D9D9D')

        Text(this.content)
          .fontSize(16)
          .fontColor('#454561')

        Text('            ' + this.category)
          .fontSize(16)
          .fontColor('#999999').margin({ left: 20 })


        Row({ space: 8 }) {
          Text('刷新')
          Image($r('app.media.uaxing'))
            .width(this.SIZE_20)
            .height(this.SIZE_20)
            .fillColor(Color.White)
        }
        .borderWidth(1)
        .margin({ top: 30 })
        .borderRadius(12)
        .borderColor('#51A3AF')
        .width('30%')
        .justifyContent(FlexAlign.Center)
        .padding(5)
        .onClick(() => {
          //   {
          //   "content": "疏影横斜水清浅，暗香浮动月黄昏。",
          //   "author": "林逋",
          //   "origin": "山园小梅・其一",
          //   "category": "古诗文 - 自然 - 梅花"
          // },
          // {
          //   "content": "秋风生渭水，落叶满长安。",
          // "author": "贾岛",
          // "origin": "忆江上吴处士",
          // "category": "古诗文 - 四季 - 秋天"
          // },
          // {
          //   "content": "等闲识得东风面，万紫千红总是春。",
          // "author": "朱熹",
          // "origin": "春日",
          // "category": "古诗文 - 四季 - 春天"
          // }
          // {
          //   "content": "明月松间照，清泉石上流。",
          // "author": "王维",
          // "origin": "山居秋暝",
          // "category": "古诗文 - 自然 - 山水"
          // }

          console.log(`xxxthis.status ： ---` + this.status)

            this.status = this.status + 1

          if (this.status == 0) {

            this.content = '疏影横斜水清浅，暗香浮动月黄昏。'
            this.author = '林逋'
            this.origin = '山园小梅・其一'
            this.category = '古诗文 - 自然 - 梅花'
          } else if (this.status == 1) {
            this.content = '秋风生渭水，落叶满长安。'
            this.author = '贾岛'
            this.origin = '忆江上吴处士'
            this.category = '古诗文 - 四季 - 秋天'
          } else if (this.status == 2) {
            this.content = '等闲识得东风面，万紫千红总是春。'
            this.author = '朱熹'
            this.origin = '春日'
            this.category = '古诗文 - 四季 - 春天'
          } else if (this.status == 3) {
            this.content = '明月松间照，清泉石上流。'
            this.author = '王维'
            this.origin = '山居秋暝'
            this.category = '古诗文 - 自然 - 山水'
            this.status = -1
          }


        })

      }
      .width(this.PAGE_FULL)
      .margin({ top: 10 })
      .padding({ top: this.SIZE_4, bottom: this.SIZE_8 })
    }
    .width('86%')
    .height('40%')
    .borderWidth(1)
    .borderRadius(12)
    .margin({ left: 23, top: 70, right: 13 })
    .borderColor('#51A3AF')

    // .padding(16)

  }

  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

      }
    });
  }
}