Javascript Admob修复Phonegap

任何建议我应该把

setInterval放在哪里（showInterstitalad，120000）？我想使用下面的代码使用admob在我的phonegap应用程序上每隔2分钟创建一次间隙广告。我使用以下插件：

不推荐每一次显示间隙，因为谷歌可以认为这是“意外启动的间隙”（参见）。更建议显示与用户操作相关的间隙（即登录后、游戏开始或结束时等）
也就是说，你应该把它放在
onAdClosed
上。请参见有关如何集成的完整示例：

var isPendingInterstitial = false;
var isAutoshowInterstitial = false;

function prepareInterstitialAd() {
if (!isPendingInterstitial) {
        admob.requestInterstitialAd({
            autoShowInterstitial: isAutoshowInterstitial
        });
    }
}

function onAdLoadedEvent(e) {
    if (e.adType === admob.AD_TYPE.INTERSTITIAL && !isAutoshowInterstitial) {
        isPendingInterstitial = true;
    }
}

function onDeviceReady() {
    document.removeEventListener('deviceready', onDeviceReady, false);

    admob.setOptions({
        publisherId:          "ca-app-pub-XXXXXXXXXXXXXXXX/BBBBBBBBBB",
        interstitialAdId:     "ca-app-pub-XXXXXXXXXXXXXXXX/IIIIIIIIII",
    });

    document.addEventListener(admob.events.onAdLoaded, onAdLoadedEvent);
    prepareIntestitialAd();
}

document.addEventListener("deviceready", onDeviceReady, false);

function showInterstitialAd() {
    if (isPendingInterstitial) {
        admob.showInterstitialAd(function () {
                isPendingInterstitial = false;
                isAutoshowInterstitial = false;
                prepareInterstitialAd();
        });
    } else {
        // The interstitial is not prepared, so in this case, we want to show     the interstitial as soon as possible
        isAutoshowInterstitial = true;
        admob.requestInterstitialAd({
            autoShowInterstitial: isAutoshowInterstitial
        });
    }
}

function onAdClosed(e) {
  if (isAppForeground) {
    if (e.adType === admob.AD_TYPE.INTERSTITIAL) {
      setTimeout(admob.requestInterstitialAd, 1000 * 60 * 2);
    }
  }
}