MoPub "onInterstitialFailed" adListener not work when offline

I am showing MoPub Interstitial ad between to activities.

When my device online/connect with internet. Then adListener work properly.This not work when device OFFLINE.

Situation: If ad not loaded or failed then I want to use Intent there to move next activity. But this MoPubAdListener not work when I am offline.

Interstitial mInterstitial.load() in onCreate method

When user press back button then Interstitial ad called

@Override
    public void onBackPressed() {
        try {
            customProgressDialogForAd.show(getSupportFragmentManager(),"before interstitial");
            funInterstitialLoadShow();
        } catch (Exception e){
            QuestionActivity.super.onBackPressed();
        }
        //super.onBackPressed();
    }

function of Interstitial call

private void funInterstitialLoadShow(){
        mInterstitial.setInterstitialAdListener(new MoPubInterstitial.InterstitialAdListener() {
            @Override
            public void onInterstitialLoaded(MoPubInterstitial moPubInterstitial) {
                Toast.makeText(QuestionActivity.this, "adloaded", Toast.LENGTH_SHORT).show();
                mInterstitial.show();
                customProgressDialogForAd.dismiss();
            }

            @Override
            public void onInterstitialFailed(MoPubInterstitial moPubInterstitial, MoPubErrorCode moPubErrorCode) {
                customProgressDialogForAd.dismiss();
                QuestionActivity.super.onBackPressed();
                
                // PROBLEM HERE: THIS fun now work when Device is OFFLINE(NO INTERNET);
            }

            @Override
            public void onInterstitialShown(MoPubInterstitial moPubInterstitial) {
            }

            @Override
            public void onInterstitialClicked(MoPubInterstitial moPubInterstitial) {
                
            }
            @Override
            public void onInterstitialDismissed(MoPubInterstitial moPubInterstitial) {
                customProgressDialogForAd.dismiss();
                QuestionActivity.super.onBackPressed();

            }
        });
    }

Problem: onInterstitialFailed not work when device not connected with internet. [on the other hand if internet is ON in device, then sdk works properly eg if we close ad then onInterstitialDismissed works]

Any Solution: Please

There is two way/method/type, to call MoPub's AdListener.

1st way: Direct call adListener

mInterstitial.setInterstitialAdListener(new MoPubInterstitial.InterstitialAdListener() { .... }

2nd way: to call MoPub AdListener via implements in our Activity class

public class QuestionActivity extends AppCompatActivity implements MoPubInterstitial.InterstitialAdListener { ... }

Solution:

You are not using mInterstitial.load() with adListener. Without adding this line of code with AdListener ,functions of Adlistener not works because this line is part of adListener.

     // ====this function (with moPub ad listener)== called when use click back button

    public void funInterstitialAdListener(){
        mInterstitial.setInterstitialAdListener(new MoPubInterstitial.InterstitialAdListener() {
            @Override
            public void onInterstitialLoaded(MoPubInterstitial moPubInterstitial) {
                Log.d(TAG, "onInterstitialLoaded: funAd loaded");
                customProgressDialogForAd.dismiss();
                mInterstitial.show();
            }

            @Override
            public void onInterstitialFailed(MoPubInterstitial moPubInterstitial, MoPubErrorCode moPubErrorCode) {
                customProgressDialogForAd.dismiss();
                QuestionActivity.super.onBackPressed();
                Log.d(TAG, "onInterstitialFailed: ad failed to load");
            }

            @Override
            public void onInterstitialShown(MoPubInterstitial moPubInterstitial) {
            }

            @Override
            public void onInterstitialClicked(MoPubInterstitial moPubInterstitial) {

            }
            @Override
            public void onInterstitialDismissed(MoPubInterstitial moPubInterstitial) {
                Log.d(TAG, "onInterstitialDismissed: Done");
                QuestionActivity.super.onBackPressed();
            }
        });
        // If we not use this mInterstitial.load() code, then function of AdListener not work. 
        mInterstitial.load();
        // Must use this upper line with adListener. This line is part of AdListener.
    }

Happy Coding :)