是否可以在活动中运行多个后台操作，同时在前台显示admob interstitial？

Question

我正在尝试在后台下载图像，我想显示admob interstitial可能就像覆盖一样暂停图像下载。我尝试了默认的实现程序，但是当admob interstitial显示它暂停后台操作时。我通过在后台制作倒数计时器并在其上显示插页式广告来进行测试。 MainActivity.java

<TechnicalProfile Id="VerifyEmailAddress">
  <DisplayName>Local Account Signin</DisplayName>
  <Protocol Name="Proprietary" Handler="Web.TPEngine.Providers.SelfAssertedAttributeProvider, Web.TPEngine, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
  <Metadata>
    <Item Key="ContentDefinitionReferenceId">api.selfasserted</Item>
  </Metadata>
  <IncludeInSso>false</IncludeInSso>
  <InputClaims>
    <InputClaim ClaimTypeReferenceId="signInName" />
  </InputClaims>
  <OutputClaims>
    <OutputClaim ClaimTypeReferenceId="signInName" PartnerClaimType="Verified.Email" Required="true"/>
    <OutputClaim ClaimTypeReferenceId="objectId" />
    <OutputClaim ClaimTypeReferenceId="userPrincipalName" />
    <OutputClaim ClaimTypeReferenceId="authenticationSource" />
  </OutputClaims>
  <ValidationTechnicalProfiles>
    <ValidationTechnicalProfile ReferenceId="AAD-UserReadUsingEmailAddress" />
  </ValidationTechnicalProfiles>
</TechnicalProfile>   

}