错误 Admob 插页式广告 构造函数插页式广告（菜单活动）未定义

Question

我已经编写了代码，用于根据 https://developers.google.com/mobile-ads-sdk/docs/admob/advanced 将 admob 中的插页式广告添加到应用的菜单活动中。我也在清单中添加了权限和配置更改。我在下面提到的行中遇到错误：

`

    interstitial = new InterstitialAd(this); // Error: The constructor InterstitialAd(MenuActivity) is undefined

    interstitial.setAdUnitId("lajdID"); // Error: The method setAdUnitId(String) is undefined for the type InterstitialAd

    // Create ad request.
    AdRequest adRequest = new AdRequest.Builder().build(); //AdRequest.Builder cannot be resolved to a type

    // Begin loading your interstitial.
    interstitial.loadAd(adRequest);

'

Answer 1

错误是告诉您Menu活动不是android.app.活动的实例。

Answer 2

您应该从导入admob

import com.google.android.gms.ads.*;