要解决这个问题，可以将插页式广告放在另一个Activity中，并且在加载广告之前暂停AsyncTask。当广告关闭时，恢复AsyncTask的执行。

示例代码：

public class MyAsyncTask extends AsyncTask { private Context mContext; private InterstitialAd mInterstitialAd;

public MyAsyncTask(Context context) {
    mContext = context;
    mInterstitialAd = new InterstitialAd(mContext);
    mInterstitialAd.setAdUnitId("your ad unit id");
}

@Override
protected void onPreExecute() {
    super.onPreExecute();
    // 暂停AsyncTask
    pauseAsyncTask();
}

@Override
protected Void doInBackground(Void... params) {
    // 执行任务代码
    // ...
}

@Override
protected void onPostExecute(Void result) {
    super.onPostExecute(result);
    // 恢复AsyncTask
    resumeAsyncTask();
}

private void pauseAsyncTask() {
    if (!mInterstitialAd.isLoaded()) {
        mInterstitialAd.loadAd(new AdRequest.Builder().build());
    }
    mInterstitialAd.setAdListener(new AdListener() {
        @Override
        public void onAdLoaded() {
            // 当广告加载完毕时暂停AsyncTask
            if (mInterstitialAd.isLoaded()) {
                mInterstitialAd.show();
            }
        }

        @Override
        public void onAdClosed() {
            // 当广告关闭时恢复AsyncTask
            resumeAsyncTask();
        }
    });
}

private void resumeAsyncTask() {
    if (!isCancelled()) {
        execute();
    }
}

}