How to know if AdMob ad has been loaded

Question

My Andorid app works offline and online. It displays ads when it is in online mode. In a scenario where it is working in offline mode and user switches the internet connectivity on, I want to know if the ad is already loaded. If not, then I would load a new ad. I looked at AdMob API (AdView class) but could not find something that does this.

Here is the implementation of my AdListener according to the answer from @Hounshell. But none of the methods implemented here are getting executed.

        adView.setAdListener(new AdListener() {

        @Override
        public void onReceiveAd(Ad arg0) {
            Toast.makeText(act, "Ad received",Toast.LENGTH_LONG).show();
        }

        @Override
        public void onPresentScreen(Ad arg0) {
        }

        @Override
        public void onLeaveApplication(Ad arg0) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onFailedToReceiveAd(Ad arg0, ErrorCode arg1) {
            Toast.makeText(act, "Failed to receive Ad",Toast.LENGTH_LONG).show();
        }

        @Override
        public void onDismissScreen(Ad arg0) {
            // TODO Auto-generated method stub

        }
    });

And part of main.xml that covers the AdView

<FrameLayout 
                    android:layout_width="fill_parent"
                    android:layout_height="50dp"
                    >
                <com.google.ads.AdView
                    xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
                    android:id="@+id/adView"
                    android:layout_width="fill_parent"
                    android:layout_height="fill_parent"
                    ads:adSize="BANNER"
                    ads:adUnitId="xxxxxxxxxxxxxxxx"
                    ads:loadAdOnCreate="true" />
                </FrameLayout>

Answer 1

From https://developers.google.com/mobile-ads-sdk/docs/android/intermediate#adlistener

AdView.setAdListener(new AdListener() {
      // Implement AdListener
    });

Your AdListener's onReceiveAd() will be called when an ad is available, onFailedToReceiveAd() will be called whan an ad isn't available with a code explaining why (including network not available and no fill)

Update:

Same basic answer, new URL: https://developers.google.com/admob/android/banner?hl=en

Answer 2

Simply...!!!

final AdView mAdView = (AdView) findViewById(R.id.adView);
        mAdView.setVisibility(View.GONE);
    mAdView.setAdListener(new AdListener() {
        private void showToast(String message) {
            Toast.makeText(getApplicationContext(), message, Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onAdLoaded() {
            showToast("Ad loaded.");
            if (mAdView.getVisibility() == View.GONE) {
                mAdView.setVisibility(View.VISIBLE);
            }
        }

        @Override
        public void onAdFailedToLoad(int errorCode) {
            showToast(String.format("Ad failed to load with error code %d.", errorCode));
        }

        @Override
        public void onAdOpened() {
            showToast("Ad opened.");
        }

        @Override
        public void onAdClosed() {
            showToast("Ad closed.");
        }

        @Override
        public void onAdLeftApplication() {
            showToast("Ad left application.");
        }
    });


    AdRequest adRequest = new AdRequest.Builder().build();
    mAdView.loadAd(adRequest);

Answer 3

I solved this problem with a bit of a workaround. For the first time, I checked if AdView has an empty tag or not.

if (adView.getTag() != null && adView.getTag() instanceof Boolean && (Boolean) adView.getTag()) {
        //Adview is already loaded
    }

If adView has a Boolean tag object and it is true then ad is already loaded otherwise load the ad and set the tag -

adView.setAdListener(new AdListener() {
            @Override
            public void onAdLoaded() {
                super.onAdLoaded();
                adView.setTag(true); // Set tag true if adView is loaded
            }

            @Override
            public void onAdFailedToLoad(int i) {
                super.onAdFailedToLoad(i);
                adView.setTag(false); // Set tag false if loading failed
            }
        });

Answer 4

you can use isLoaded() method. I am using it on a same context as you and inside a timer to wait until ad is loaded.

https://developer.android.com/reference/com/google/android/gms/ads/InterstitialAd.html