Catch the Ball – #11 Implement AdMob Interstitial Ad

start.java

package codingwithsara.com.catchtheball;
  
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
  
import com.google.android.gms.ads.AdListener;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.InterstitialAd;
  
public class start extends AppCompatActivity {
  
    private InterstitialAd interstitial;
  
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_start);
  
  
        // Create the interstitial.
        interstitial = new InterstitialAd(this);
  
        // Set your unit id. THIS IS TEST ID!!
        interstitial.setAdUnitId("ca-app-pub-3940256099942544/1033173712");
  
        // Create request.
        AdRequest adRequest = new AdRequest.Builder().build();
  
        // Start loading...
        interstitial.loadAd(adRequest);
  
        // Once request is loaded, display ad.
        interstitial.setAdListener(new AdListener() {
            public void onAdLoaded() {
                displayInterstitial();
            }
        });
  
    }
  
    public void displayInterstitial() {  
        if (interstitial.isLoaded()) {
            interstitial.show();
        }
    }
}