Admob integration in android studio | Admob android tutorial | Admob interstitial ads android tutorial | Admob banner ads tutorial

Step 1

First add below dependency in build.gradle (Module:app)
after

dependencies {

implementation 'com.google.android.gms:play-services-ads:17.1.1'

and sync Project

Step 2 

then Open AndroidManifest.xml

go to last of Code and Place below code before last two lines in Manifest , 

last two lines are also given below

<meta-data    
android:name="com.google.android.gms.ads.APPLICATION_ID"    
android:value="ca-app-pub-3940256099942544~3347511713" />

</application>

</manifest>




ca-app-pub-3940256099942544~3347511713 is test app id 
You will get your app id when you register your app on admob replace this id with your
app application id









Step 3 

Admob banner ads tutorial




First go To MainActivity.xml or your desired xml file and place below code in layout


<com.google.android.gms.ads.AdView    
xmlns:ads="http://schemas.android.com/apk/res-auto"    
android:id="@+id/adView"    
android:layout_width="wrap_content"    
android:layout_height="wrap_content"    
android:layout_centerHorizontal="true"    
android:layout_alignParentBottom="true"    
ads:adSize="BANNER"    
ads:adUnitId="ca-app-pub-3940256099942544/6300978111">
</com.google.android.gms.ads.AdView>
 



You have to replace 
ca-app-pub-3940256099942544/6300978111   
with your own admob banner ad code






Then go to MainActivity.Java file

After below line Place Main code


setContentView(R.layout.activity_main);



AdView adView = findViewById(R.id.adView);
MobileAds.initialize(this , "ca-app-pub-3940256099942544~3347511713");
AdRequest adRequest = new AdRequest.Builder().build();
adView.loadAd(adRequest); 
 

you have to replace ca-app-pub-3940256099942544~3347511713
with your application id you get from admob  





Step 4



Admob interstitial ads android tutorial







Place this code in .Java File or MainActivity.Java File













MobileAds.initialize(this , "ca-app-pub-3940256099942544~3347511713");
final InterstitialAd interstitialAd1 = new InterstitialAd(this);
interstitialAd1.setAdUnitId("ca-app-pub-3940256099942544/1033173712");
interstitialAd1.loadAd(new AdRequest.Builder().build());
Button button7 = findViewById(R.id.button7);
button7.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        if (interstitialAd1.isLoaded()) {

            interstitialAd1.show();
        } else {

            startActivity(new Intent(MainActivity.this, NextActivity.class));

        }
    }
});
interstitialAd1.setAdListener(new AdListener() {

    @Override
    public void onAdClosed() {
        interstitialAd1.loadAd(new AdRequest.Builder().build());
        startActivity(new Intent(MainActivity.this, NextActivity.class));

    }

});
 
Replace ca-app-pub-3940256099942544~3347511713 in first line with your Application id

Replace ca-app-pub-3940256099942544/1033173712 in third line with your Admob interstitial ad code


Replace button7 in 5 and 6 lines,with your button id on which you want to apply ad


Replace NextActivity.class in 14 and 24 lines with your own activity which should be 
open when user close interstitial ad in lines 2,3,4 ,9,11,19,23 


Don't place interstitial ad in every activity , Place one interstitial ad after 4-5 activities








If You want to apply interstitial ad on more than one button then

Copy Paste Same Code and Replace interstitialAd1 with interstitialAd2 or some other text of your choice in whole code 




Happy Earning 




Comment Below If you face any problem