Admob ad will not load. Error 2. It worked before but suddenly stopped

Question

Here is the entire class that I am trying to load a banner ad into (createAd() method does the work)

public class HomeActivity extends Activity {

    privat         


        

Answer 1

at first be clear about which type of add you want to load, interstitial or banner ad. if you want to load banner ad, create a banner ad_unit_id on admob site, then use AdView directly inside your activity view as below:

and just request to load banner ad from your code as below: write this code in your activity inside oncreate after setcontentview

AdView mAdView = (AdView) findViewById(R.id.xadView);
AdRequest adRequest = new AdRequest.Builder().addTestDevice(
                AdRequest.DEVICE_ID_EMULATOR).build();
mAdView.loadAd(adRequest); 

AND

if you want to load interstial ads, create a interstitial ad_unit_id on admob site, then use it in below method:

public void showFullScreenAd() {
    try {

                com.google.android.gms.ads.InterstitialAd interstitial = new com.google.android.gms.ads.InterstitialAd(context);
                interstitial
                        .setAdUnitId(ADMOB_INTERSTITIAL_AD_UNIT_ID);

                // Check the logcat output for your hashed device ID to get test ads
                // on
                // a physical device.
                com.google.android.gms.ads.AdRequest adRequest = new AdRequest.Builder()
                        .build();

                // Load the interstitial ad.
                interstitial.loadAd(adRequest);
                interstitial
                        .setAdListener(new com.google.android.gms.ads.AdListener() {
                            @Override
                            public void onAdLoaded() {
                                interstitial.show();
                            }                           
                        });

    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

NOTE: important thing is that sometimes we use banner ad unit id inside interstitial ads or interstitial ad unit id inside banner ads, so this error occurs.