尊敬的开发者，您好，uni-app嵌入ArkUI组件使用了同层渲染，广告不支持纹理导出，NodeController挂载节点时不能设置为NodeRenderType.RENDER_TYPE_TEXTURE，nodeRenderType需要设置为NodeRenderType.RENDER_TYPE_DISPLAY请参考uni-app官网链接修改，以下为修改后的参考代码。

嵌入HarmonyOS原生组件

import { NativeEmbedBuilderOptions, defineNativeEmbed } from "@dcloudio/uni-app-runtime"

import { abilityAccessCtrl, common, PermissionRequestResult } from '@kit.AbilityKit';
import { advertising, AutoAdComponent, identifier } from '@kit.AdsKit';
import { hilog } from '@kit.PerformanceAnalysisKit';
import { NodeRenderType } from '@kit.ArkUI'

@Component
struct adsBannerComponent {
  @State visibilityState: Visibility = Visibility.None;
  // 广告请求参数
  private adRequestParams: advertising.AdRequestParams = {
    // 'h5xkz3mbr2'为测试专用的广告位ID，App正式发布时需要改为正式的广告位ID
    adId: 'h5xkz3mbr2',
    // 横幅广告类型
    adType: 8,
    // 广告位宽
    adWidth: 360,
    // 广告位高
    adHeight: 57
  };
  // 广告配置参数，开发者可根据项目实际情况设置
  private adOptions: advertising.AdOptions = {};
  // 广告展示参数，开发者可根据项目实际情况设置
  private adDisplayOptions: advertising.AdDisplayOptions = {
    // 广告轮播的时间间隔，单位ms，取值范围[30000, 120000]
    refreshTime: 30000
  };
  private ratio: number = 1;
  private context: common.UIAbilityContext = this.getUIContext().getHostContext() as common.UIAbilityContext;

  async aboutToAppear(): Promise<void> {
    // 开放匿名设备标识符
    this.adRequestParams.oaid = await requestOAID(this.context);
    console.log('this.adRequestParams', this.adRequestParams);
    this.visibilityState = Visibility.Visible;
    if (this.adRequestParams.adWidth && this.adRequestParams.adHeight) {
      this.ratio = this.adRequestParams.adWidth / this.adRequestParams.adHeight;
    }
  }

  build() {
    Row() {
      AutoAdComponent({
        adParam: this.adRequestParams,
        adOptions: this.adOptions,
        displayOptions: this.adDisplayOptions,
        interactionListener: {
          onStatusChanged: (status: string, ad: advertising.Advertisement, data: string) => {
            switch (status) {
              case 'onAdOpen':
                console.log('打开广告');
                break;
              case 'onAdClick':
                console.log('点击广告');
                break;
              case 'onAdClose':
                console.log('关闭广告');
                this.visibilityState = Visibility.None;
                break;
              case 'onAdLoad':
                console.log('广告加载成功');
                break;
              case 'onAdFail':
                console.log('广告加载失败');
                this.visibilityState = Visibility.None;
                break;
            }
          }
        }
      })
        .width('100%')
        .height('100%')
        .aspectRatio(this.ratio)
        .visibility(this.visibilityState)
        .backgroundColor(Color.Red)
    }
  }
}

async function requestOAID(context: Context): Promise<string | undefined> {
  // 向用户请求授权广告跨应用关联访问权限
  let isPermissionGranted: boolean = false;
  try {
    const atManager: abilityAccessCtrl.AtManager = abilityAccessCtrl.createAtManager();
    const result: PermissionRequestResult =
      await atManager.requestPermissionsFromUser(context, ['ohos.permission.APP_TRACKING_CONSENT']);
    isPermissionGranted = result.authResults[0] === abilityAccessCtrl.GrantStatus.PERMISSION_GRANTED;
  } catch (err) {
    hilog.error(0x0000, 'testTag', `Failed to request permission. Code is ${err.code}, message is ${err.message}`);
  }
  if (isPermissionGranted) {
    hilog.info(0x0000, 'testTag', 'Succeeded in requesting permission');
    try {
      const oaid = await identifier.getOAID();
      hilog.info(0x0000, 'testTag', 'Succeeded in getting OAID');
      return oaid;
    } catch (err) {
      hilog.error(0x0000, 'testTag', `Failed to get OAID. Code is ${err.code}, message is ${err.message}`);
    }
  } else {
    hilog.error(0x0000, 'testTag', 'Failed to request permission. User rejected');
  }
  return undefined;
}

@Builder
function adsBannerBuilder(options: NativeEmbedBuilderOptions) {
  adsBannerComponent()
    .width(options.width)
    .height(options.height)
}

defineNativeEmbed('adsbanner', {
  builder: adsBannerBuilder,
  nodeRenderType: NodeRenderType.RENDER_TYPE_DISPLAY
})

你的外层 Row 依赖 aspectRatio 撑高，但在数据未返回时，ratio 计算可能为 1，导致 Row 高度过小而不可见。可以试试是给最外层 Row 加一个最小高度，确保点击区域存在：

Row() {
  // ...
}
.width('100%')
.constraintSize({ minHeight: 50 }) // 保证行可见
.aspectRatio(this.ratio)
.visibility(this.visibilityState)

找HarmonyOS工作还需要会Flutter的哦，有需要Flutter教程的可以学学大地老师的教程，很不错，B站免费学的哦：https://www.bilibili.com/video/BV1S4411E7LY/?p=17，

从现象看，“广告已加载但页面不显示”优先排查广告类型和展示组件是否匹配，以及 uni-app 原生嵌入组件是否真的布局出来。横幅广告通常用 AutoAdComponent；原生、开屏、贴片广告用 AdComponent；插屏和激励视频一般不是嵌入页面组件，而是加载后调用 showAd 展示。建议先在纯 ArkTS 页面只跑通 banner，再放入 native embed，并确认外层容器有明确 width/height，没有被滚动容器裁剪或被 zIndex/overflow 影响。

。

<embed class="native-button" tag="adsbanner"></embed>

就是引入了但是页面不显示 写一个button按钮或者地图什么的都显示 就是这个广告不显示