Admob Ad banner

You need to get the admob identifiers for both the app and the block.
then you need to insert these codes in three places:



In the manifest

<meta-data android:name="com.google.android.gms.ads.APPLICATION_ID"

android:value="ca-app-pub-******************~**********" />

In the layout

<com.google.android.gms.ads.AdView

xmlns:ads="http://schemas.android.com/apk/res-auto"

android:id="@+id/adView"

android:layout_width="match_parent"

android:layout_height="wrap_content"

ads:adSize="BANNER"

ads:adUnitId="ca-app-pub-***************/************" />

in the app

MobileAds.initialize(this,"ca-app-pub-*********/*******");
myAd=findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder().build();
myAd.loadAd(adRequest);

Remember that you will need internet permissions.