Interstitial ads are full-screen ads that cover the whole UI of the app. This article shows you how to integrate Interstitial ads from AdMob into an Android app.
Example –
First Create a new Project in Android Studio and add the following codes to import the google Mobile Ads SDK. In the project-level build.gradle file, add the highlighted code to the allprojects section.
In the app-level build.gradle file, add the highlighted code to dependencies section.
dependencies { implementation fileTree (dir : 'libs' , include : [ '*.jar' ]) implementation 'com.android.support:appcompat-v7:26.1.0' compile 'com.google.android.gms:play-services-ads:15.0.0' |
Add the following code to Main Activity to initialize Mobile Ads SDK (this only needs to be done once in app lifecycle). You can find the app’s App ID in AdMob console.
package org.geeksforgeeks.geeksforgeeks; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import com.google.android.gms.ads.MobileAds; public class MainActivity extends AppCompatActivity { protected void onCreate (Bundle savedInstanceState) { super .onCreate (savedInstanceState); setContentView (R.layout.activity_main); // Initialize the Mobile Ads SDK MobileAds.initialize ( this , getString (R.string.admob_app_id)); } } |
Add the highlighted code to Main Activity to show Interstitial Ad:
MainActivity.class –
package org.geeksforgeeks.geeksforgeeks; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import com.google.android.gms.ads.MobileAds; import com.google.android.gms.ads.AdListener; import com.google.android.gms.ads.AdRequest; import com.google.android.gms.ads.InterstitialAd; public class MainActivity extends AppCompatActivity { private InterstitialAd interstitial; @Override protected void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Initialize the Mobile Ads SDK MobileAds.initialize( this , getString(R.string.admob_app_id)); AdRequest adIRequest = new AdRequest.Builder().build(); // Prepare the Interstitial Ad Activity interstitial = new InterstitialAd(MainActivity. this ); // Insert the Ad Unit ID interstitial.setAdUnitId(getString(R.string.admob_interstitial_id)); // Interstitial Ad load Request interstitial.loadAd(adIRequest); // Prepare an Interstitial Ad Listener interstitial.setAdListener( new AdListener() { public void onAdLoaded() { // Call displayInterstitial() function when the Ad loads displayInterstitial(); } }); } public void displayInterstitial() { // If Interstitial Ads are loaded then show else show nothing. if (interstitial.isLoaded()) { interstitial.show(); } } } |
Add the Admob App Id and Interstitial Ad Id to string.xml
strings.xml –
<? xml version = "1.0" encoding = "utf-8" ?> < resources > < string name = "admob_app_id" > ca-app-pub-3940256099942544~3347511713</ string > < string name = "admob_interstitial_id" > ca-app-pub-3940256099942544/1033173712</ string > <!-- ca-app-pub-3940256099942544~3347511713 this is your admob app id --> <!-- ca-app-pub-3940256099942544/1033173712 this is your admob Interstitial ad id --> </ resources > |