CODEWITHSUNDEEP
javaandroidfacebooknullpointerexceptionfacebook-audience-network
Giru Bhai
Giru Bhai

Reputation: 14408

Facebook Audience Network cause NullPointerException

I experienced a lot of crash in my app using ads from Facebook’s Audience Network.Here is the report:

NullPointerException (@FBInterstitial:InitInterstitialAd:-1) {Thread:main Exception:java.lang.NullPointerException at android.webkit.WebSettingsClassic.getDefaultUserAgentForLocale(WebSettingsClassic.java:453) at android.webkit.WebViewClassic$Factory.getDefaultUserAgent(WebViewClassic.java:1503) at android.webkit.WebSettings.getDefaultUserAgent(WebSettings.java:1280) at com.facebook.ads.a.s.a(Unknown Source) at com.facebook.ads.a.s.a(Unknown Source) at com.facebook.ads.a.j.(Unknown Source) at com.facebook.ads.a.k.b(Unknown Source) at com.facebook.ads.InterstitialAd.loadAd(Unknown Source)

It happens at mInterstitialAd.show(); where mInterstitialAd is instance of facebook InterstitialAd and it call show() method of InterstitialAd class.

I also did check nullability for mInterstitialAd as

  if (mInterstitialAd != null && mInterstitialAd.isAdLoaded()) {
      mInterstitialAd.show();
    }

As you can see the error prompt when try to show a new ad. Anyone that has this error know how to solve it?

Note : I am using AudienceNetwork.jar file.And from log it seems that error in method a of class s (see code below) which is in com.facebook.ads.a package (available in jar file.) 

  // IntelliJ API Decompiler stub source generated from a class file
  // Implementation of methods is not available

package com.facebook.ads.a;

public class s {
    private static java.lang.String a;

    public static void a(android.webkit.WebView webView, android.webkit.WebViewClient webViewClient, com.facebook.ads.a.r r) { /* compiled code */ }

    public static void a(android.webkit.WebView webView) { /* compiled code */ }

    public static java.lang.String a() { /* compiled code */ }

    public static java.lang.String a(android.content.Context context, com.facebook.ads.a.o o) { /* compiled code */ }

    private static java.lang.String a(android.content.Context context, java.lang.String s, java.lang.String s1) { /* compiled code */ }

    @android.annotation.TargetApi(17)
    private static java.lang.String a(android.content.Context context) { /* compiled code */ }
}

Edit Initialize it as

mInterstitialAd = new InterstitialAd(mContext, "FaceBookPlacementID");
mInterstitialAd.setAdListener(this);
mInterstitialAd.loadAd();

Upvotes: 1

Views: 2105

Answers (1)

Jenny Abrahamson
Jenny Abrahamson

Reputation: 171

Looks very similar to this issue: https://groups.google.com/forum/#!topic/google-admob-ads-sdk/SX9yb3F_PNk

But we can surround the call from our SDK with a try/catch that has a fallback to grab the UA a different way. Will put out a hotfix tomorrow. Please report back if you still see the issue in 4.1.1.

Upvotes: 1

Related Questions