Flutter google_mobile_ads 未显示广告 ID

Question

我正在使用 google_mobile_ads 并验证了我的 admob 帐户并创建了广告单元，所有这些都至少有 2 天的历史。

但每当我更改广告 ID 时，在下面的代码中，广告都不会显示。我尝试构建一个发布 apk 并将其安装在我的手机上，但广告仍然没有显示，我还没有发布应用程序。

void loadRewardedAd(){
    RewardedAd.load(
        adUnitId: RewardedAd.testAdUnitId,//when i put my ad id here it doesn't work
        request: AdRequest(),
        rewardedAdLoadCallback: RewardedAdLoadCallback(
          onAdLoaded: (RewardedAd ad) {
            rewardedAd = ad;
            adLoadsNumber = 0;
          },
          onAdFailedToLoad: (LoadAdError error) {
            adLoadsNumber++;
            interStitialAd = null;

            if (adLoadsNumber <= 2) {
              loadAds();
            }
          },
        ));
  }

  void showRewardedAd(){
    rewardedAd.fullScreenContentCallback = FullScreenContentCallback(
      onAdShowedFullScreenContent: (RewardedAd ad) =>
          print('$ad onAdShowedFullScreenContent.'),
      onAdDismissedFullScreenContent: (RewardedAd ad) {
        print('$ad onAdDismissedFullScreenContent.');
        ad.dispose();
      },
      onAdFailedToShowFullScreenContent: (RewardedAd ad, AdError error) {
        print('$ad onAdFailedToShowFullScreenContent: $error');
        ad.dispose();
      },
      onAdImpression: (RewardedAd ad) => print('$ad impression occurred.'),
    );

    rewardedAd.show(
        onUserEarnedReward: (RewardedAd ad, RewardItem rewardItem) {
          this.gameEnded = false;
          this.livesLeft.value = 3;
        }
    );

  }
  void loadAds() {
    loadInterstitialAd();
    loadRewardedAd();
  }

  void loadInterstitialAd(){
    InterstitialAd.load(
        adUnitId: InterstitialAd.testAdUnitId,//same with this one
        request: AdRequest(),
        adLoadCallback:
        InterstitialAdLoadCallback(onAdLoaded: (InterstitialAd ad) {
          interStitialAd = ad;
          adLoadsNumber = 0;
        }, onAdFailedToLoad: (LoadAdError e) {
          adLoadsNumber++;
          interStitialAd = null;

          if (adLoadsNumber <= 2) {
            loadInterstitialAd();
          }
        }));
  }

  void showInterstitialAd(bool isEnded) {
    if (interStitialAd == null) {
      return;
    }

    interStitialAd.fullScreenContentCallback = FullScreenContentCallback(
      onAdDismissedFullScreenContent: (InterstitialAd ad) {
        ad.dispose();
      },
      onAdFailedToShowFullScreenContent: (InterstitialAd ad, AdError error) {
        ad.dispose();
      },
    );

    interStitialAd.show();
  }

Answer 1

请检查您是否在控制台中添加了 Signed APK SHA。