广告在加载时崩溃 android

Question

我的 app.They 中有 google 广告，在我添加 facebook（观众）广告之前效果很好 too.What 我做的是当广告 facebook 广告加载失败时我显示 google 广告。我的广告过去运行良好，但直到昨天它们才开始使应用程序崩溃并出现错误

  java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.pm.PackageManager android.content.Context.getPackageManager()' on a null object reference
                                                                      at com.google.android.gms.common.zze.isGooglePlayServicesAvailable(Unknown Source)
                                                                      at com.google.android.gms.common.zzc.isGooglePlayServicesAvailable(Unknown Source)
                                                                      at com.google.android.gms.internal.zzpx.zzP(Unknown Source)
                                                                      at com.google.android.gms.internal.zzeg.zza(Unknown Source)
                                                                      at com.google.android.gms.internal.zzeg.zzb(Unknown Source)
                                                                      at com.google.android.gms.internal.zzfa.zzS(Unknown Source)
                                                                      at com.google.android.gms.internal.zzfa.zza(Unknown Source)
                                                                      at com.google.android.gms.ads.InterstitialAd.loadAd(Unknown Source)
                                                                      at com.bison.multipurposeapp.fragments.BaseTabLayoutFragment.requestNewInterstitial(BaseTabLayoutFragment.java:127)
                                                                      at com.bison.multipurposeapp.fragments.BaseTabLayoutFragment.loadInterstitial(BaseTabLayoutFragment.java:164)
                                                                      at com.bison.multipurposeapp.fragments.BaseTabLayoutFragment.onError(BaseTabLayoutFragment.java:91)
                                                                      at com.facebook.ads.AdView.a(Unknown Source)

这是一段代码；

  private void requestNewInterstitial() {
        AdRequest adRequest = new AdRequest.Builder()
                .addTestDevice(Constants.ADMOB_TESTING_DEVICE_LENOVO)
                .build();
        mInterstitialAd.loadAd(adRequest);//here the app crashes
    }

Answer 1

您好，您正在向广告传递空上下文 request.If 您使用的是片段而不是传递 getActivity() 传递在 onAttach();

中收到的上下文

广告在加载时崩溃 android

Ads crash on loading android

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