nullpointer exception on nativead [ getContext() or getActivity()] - Fragment

[Kush]

Error :- when user back press from second activity to home activity. on NativeexpressAd - getContext() or getActivity()

private void addNativeExpressAds() {

        // Loop through the items array and place a new Native Express ad in every ith position in

        // the items List.

        for (int i = 0; i <= mRecyclerViewItems.size(); i += ITEMS_PER_AD) {

            // Check whether we already have a NativeExpressAdView on the list before adding one

            if( (mRecyclerViewItems.size() - i == 0) || !(mRecyclerViewItems.get(i) instanceof NativeExpressAdView)  ){

                NativeExpressAdView adView = new NativeExpressAdView(getContext()); ERROR

                mRecyclerViewItems.add(i, adView);

            }

        }

    }

E/UncaughtException: java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.Resources android.content.Context.getResources()' on a null object reference

                                                                                    at android.view.ViewConfiguration.get(ViewConfiguration.java:389)

                                                                                    at android.view.View.<init>(View.java:4064)

                                                                                    at android.view.View.<init>(View.java:4186)

                                                                                    at android.view.ViewGroup.<init>(ViewGroup.java:591)

                                                                                    at android.view.ViewGroup.<init>(ViewGroup.java:587)

                                                                                    at android.view.ViewGroup.<init>(ViewGroup.java:583)

                                                                                    at android.view.ViewGroup.<init>(ViewGroup.java:579)

                                                                                    at com.google.android.gms.ads.BaseAdView.<init>(Unknown Source)

                                                                                    at com.google.android.gms.ads.NativeExpressAdView.<init>(Unknown Source)

                                                                                    at com.sopo.fragment.PostListFragment.addNativeExpressAds(PostListFragment.java:228)

                                                                                    at com.sopo.fragment.PostListFragment.rebuildAdapterList(PostListFragment.java:182)

                                                                                    at com.sopo.fragment.PostListFragment.access$300(PostListFragment.java:41)

                                                                                    at com.sopo.fragment.PostListFragment$1.onChildChanged(PostListFragment.java:133)

                                                                                    at com.google.android.gms.internal.zzbox.zza(Unknown Source)

                                                                                    at com.google.android.gms.internal.zzbqx.zzZS(Unknown Source)

                                                                                    at com.google.android.gms.internal.zzbra$1.run(Unknown Source)

                                                                                    at android.os.Handler.handleCallback(Handler.java:739)

                                                                                    at android.os.Handler.dispatchMessage(Handler.java:95)

                                                                                    at android.os.Looper.loop(Looper.java:148)

                                                                                    at android.app.ActivityThread.main(ActivityThread.java:7325)

                                                                                    at java.lang.reflect.Method.invoke(Native Method)

                                                                                    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)

                                                                                    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120) 

[Chris Feldman (Mobile Ads SDK Team)]

Hi,

This does not appear to be an issue with the Mobile Ads SDK. It is your call to getContext() that is throwing the null pointer exception. This can happen for a number of reasons, and is a result of your Activity/Fragment relationship. If you'd like to send me a sample that I can build and debug directly, I can attempt to assist you further. That being said, this question might be better suited for StackOverflow.

If you do decide to send me your app, you can do so privately so it isn't public to the forum. Let me know if you have any further questions.

Regards,

Chris Feldman

Mobile Ads SDK Team

[Kush Vatsa]

Hello Chris, 

If you have any sample regarding abstract class - native ads with recyclerview than send me.

I am very thankful to you.

Regards

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[Chris Feldman (Mobile Ads SDK Team)]

Hi,

You can view our NativeExpressRecylerViewExample on GitHub. Let me know if you have any further questions.

Regards,

Chris Feldman

Mobile Ads SDK Team

On Friday, March 17, 2017 at 12:21:45 PM UTC-4, Kush wrote:

Hello Chris, 

If you have any sample regarding abstract class - native ads with recyclerview than send me.

I am very thankful to you.

Regards