java - 将 InterstitialAd 与 InterstitialAdListener 结合使用。获取错误消息

Question

我在使用 InterstitialAdListener 时收到此错误

 Anonymous class derived from InterstitialAdListener' must either be declared > abstract or implement abstract method 'onInterstitialDismissed(Ad) in 
'InterstitialAdListener' 

InterstitialAdListener 带有红色下划线。

我尝试将其缩小为com.facebook.ads.AdListener，但对我不起作用此外，我升级了SDK以查看是否可以解决该问题，但运气不佳。

我该如何解决这个问题？

    private void initInterstitialAdPrepare() {
            interstitialAd = new InterstitialAd(this, "xxxxxxxx_xxxxxxxxx");
            interstitialAd.setAdListener(new InterstitialAdListener() {

                    @Override
                public void onInterstitialDisplayed(Ad ad) {
                    // Interstitial ad displayed callback
                    Log.e(TAG, "Interstitial ad displayed.");
                }

                @Override
                public void onError(Ad ad, AdError adError) {
                    // Ad error callback
                    Log.e(TAG, "Interstitial ad failed to load: " + adError.getErrorMessage());
                }



                @Override
                public void onAdLoaded(Ad ad) {
                    // Interstitial ad is loaded and ready to be displayed
                    Log.d(TAG, "Interstitial ad is loaded and ready to be displayed!");


                    }

                    // Show the ad
                    interstitialAd.show();
                }

Answer 1

在 onCreate 中调用此

private void requestInterstitialAd(){
    interstitialAd = new InterstitialAd(this, getResources().getString(R.string.interstitial_ad_id)); //YOUR_PLACEMENT_ID
    interstitialAd.loadAd();
}

在您想要加载广告的位置使用此代码，并在启动计时器完成后使用它

if(interstitialAd.isAdLoaded()) {
        interstitialAd.show();
        interstitialAd.setAdListener(new InterstitialAdListener() {

            @Override
            public void onError(Ad ad, AdError adError) {
            }
            @Override
            public void onInterstitialDismissed(Ad ad) {
                requestInterstitialAd();
                //Perform your functionality here
            }
            @Override
            public void onInterstitialDisplayed(Ad ad) {
            }
            @Override
            public void onAdLoaded(Ad ad) {
            }
            @Override
            public void onAdClicked(Ad ad) {
            }
            @Override
            public void onLoggingImpression(Ad ad) {

            }
        });
    }
    else {
        requestInterstitialAd();
        //Perform your functionality here in case ad is not loaded before
    }