AdMob：插页式广告仅加载一个 time.ack

Question

我有一个应用程序，当您按返回键时，我会在特定屏幕上加载插页式广告。第一次尝试时，interstistialAd.isLoaded() 变为 true，但之后每隔一段时间变为 false。我不明白我在这里缺少什么。这是我的代码：

public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  Bundle b = getIntent().getExtras();
  videoId = b.getString("videoId");
  setContentView(R.layout.youtube_player);

  //begin ads
  interstitialAd= new InterstitialAd(this);
  interstitialAd.setAdUnitId(getString(R.string.interstitial_full_screen));
  AdRequest adRequest = new AdRequest.Builder().build();
  interstitialAd.loadAd(adRequest);

  adCounter++;
  //end ads

YouTubePlayerFragment youTubePlayerFragment =
    (YouTubePlayerFragment) getFragmentManager().findFragmentById(R.id.youtube_fragment);
youTubePlayerFragment.initialize(ApiKey.YOUTUBE_API_KEY, this);

  //OnClick listener
  findViewById(R.id.backButton).setOnClickListener( new View.OnClickListener() {
      @Override
      public void onClick(View v) {
          ShowAds();
          finish();
      }
  });

    @Override
public void onBackPressed() {
    ShowAds();

}

private void ShowAds() {

    if (interstitialAd.isLoaded() {
        interstitialAd.show();
        AdRequest adRequest = new AdRequest.Builder().build();
        interstitialAd.loadAd(adRequest);
        interstitialAd.setAdListener(new AdListener() {
            @Override
            public void onAdClosed() {
                super.onAdClosed();
                finish();
            }
        });
    }else{
        super.onBackPressed();
    }
}

谢谢！！！

Answer 1

每次放映后 interstitialAd.show(); 再次请求广告 interstitialAd.loadAd(adRequest);。

AdMob：插页式广告仅加载一个 time.ack

AdMob: interstistial ad loads just one time.ack

android

interstitial

admob