鸿蒙没有应用下载安装，只支持跳转到应用市场更新

gotoMarket(){
    try {
      const request: Want = {
        parameters: {
          // 此处填入要加载的应用包名，例如： bundleName: "com.huawei.hmsapp.appgallery"
           bundleName: 'com.huawei.hmos.maps.app'
          
        }
      };
      productViewManager.loadProduct(getContext(this) as common.UIAbilityContext, request, {
        onError: (error: BusinessError) => {
          hilog.info(0, 'TAG', `loadProduct onError. code is ${error.code}, message is ${error.message}`);
        }
      });
    } catch (err) {
      hilog.error(0, 'TAG', `loadProduct failed. code is ${err.code}, message is ${err.message}`);
    }
  }