人脸核身Button的实现

// Face_authentication.ets

import { FunctionalButton, functionalButtonComponentManager } from '@kit.ScenarioFusionKit';
import { hilog } from '@kit.PerformanceAnalysisKit';
import http from '@ohos.net.http';
import { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';

interface Result {
  state?: number;
  realNameLevel?: number;
  verifyResult?: number;
  verifyToken?: string;
}

@Entry
@Component
struct SecondPage {
  obtainFaceVerifyDataInfo(authCode: string, sceneID: number, openID: string, realName: string, idNo: string,
    callback: AsyncCallback<Result>) {
    // 每一个httpRequest对应一个HTTP请求任务，不可复用
    let httpRequest = http.createHttp();
    // 用于订阅HTTP响应头，此接口会比request请求先返回。可以根据业务需要订阅此消息
    httpRequest.on('headersReceive', (header) => {
      hilog.info(0x0000, "testTag", "header: %{public}s", header as string);
    });
    httpRequest.request(
      // 填写HTTP请求的URL地址，可以带参数也可以不带参数。URL地址需要开发者自定义。请求的参数可以在extraData中指定
      "EXAMPLE_URL",
      {
        method: http.RequestMethod.POST,
        // 开发者根据自身业务需要添加header字段
        header: {
          'Content-Type': 'application/json'
        },
        // 当使用POST请求时此字段用于传递内容
        extraData: {
          "authCode": authCode,
          "sceneID": sceneID,
          "openID": openID,
          "realname": realName,
          "idNo": idNo,
        },
        expectDataType: http.HttpDataType.STRING,
        usingCache: true,
        priority: 1,
        connectTimeout: 60000,
        readTimeout: 60000,
        usingProtocol: http.HttpProtocol.HTTP1_1,
      }, (err, data) => {
      if (!err) {
        let res: Result = JSON.parse(data.result as string);
        callback(undefined, res);
      } else {
        let error: BusinessError = { code: err.code, message: err.message, name: '' }
        callback(error, undefined);
        // 取消订阅HTTP响应头事件
        httpRequest.off('headersReceive');
        // 当该请求使用完毕时，调用destroy方法主动销毁
        httpRequest.destroy();
      }
    })
  }

  build() {
    Row() {
      Column() {
        FunctionalButton({
          params: {
            // OpenType.FACE_AUTHENTICATION表示Button为人脸核身类型
            openType: functionalButtonComponentManager.OpenType.FACE_AUTHENTICATION,
            label: '人脸核身',
            // 调整Button样式
            styleOption: {
              styleConfig: new functionalButtonComponentManager.ButtonConfig()
                .fontSize(20)
                .fontColor(Color.Black)
            }
          },
          // OpenType为“FACE_AUTHENTICATION”时，回调必须选择“onFaceAuthentication”
          controller: new functionalButtonComponentManager.FunctionalButtonController()
            .onFaceAuthentication((err, data) => {
              if (err) {
                // 错误日志处理
                hilog.error(0x0000, "testTag", "error： %{public}d %{public}s", err.code, err.message);
                return;
              }
              // 成功日志处理
              hilog.info(0x0000, "testTag", "succeeded in authenticating");
              // 获取Authorization Code
              let authCode: string = data.authCode as string;
              let openID: string = data.openID as string;
              hilog.info(0x0000, "testTag", "succeeded in authCode");
              this.obtainFaceVerifyDataInfo(authCode, 2, openID, "", "", (err, data) => {
                if (err) {
                  hilog.error(0x0000, "testTag", "error： %{public}d %{public}s", err.code, err.message);
                  return;
                }
                let verifyToken: string = data.verifyToken as string;
                new functionalButtonComponentManager.FunctionalButtonController().onFaceVerification(verifyToken,
                  (error, data) => {
                    if (error) {
                      // 错误日志处理
                      hilog.error(0x0000, "testTag", "error： %{public}d %{public}s", error.code, error.message);
                      return;
                    }
                    let facialRecognitionVerificationToken = data.facialRecognitionVerificationToken;
                    let state = data.state;
                    hilog.info(0x0000, 'testTag', 'auth result success');
                  });
              })
            })
        })
      }
      .width('100%')
    }
    .height('100%')
  }
}