Admob Banner Ads and Admob Interstitial Ads Implementation in Android Studio

 
         
package com.trickuweb.myadmob;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.os.Handler;
import android.util.Log;

import com.google.android.gms.ads.AdListener;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
import com.google.android.gms.ads.InterstitialAd;
import com.google.android.gms.ads.MobileAds;
import com.google.android.gms.ads.initialization.InitializationStatus;
import com.google.android.gms.ads.initialization.OnInitializationCompleteListener;

public class MainActivity extends AppCompatActivity {
    private AdView mAdView;
    private InterstitialAd mInterstitialAd;
    private Handler mHandler = new Handler();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        MobileAds.initialize(this, new OnInitializationCompleteListener() {
            @Override
            public void onInitializationComplete(InitializationStatus initializationStatus) {
            }
        });
        mAdView = new AdView(getActivity());
        mAdView.setAdSize(AdSize.SMART_BANNER);
        mAdView.setAdUnitId("ca-app-pub-3940256099942544/6300978111");
        mAdView = v.findViewById(R.id.adView);
        AdRequest adRequest = new AdRequest.Builder().build();
        mAdView.loadAd(adRequest);
		
		       MobileAds.initialize(this,
                "ca-app-pub-3940256099942544~3347511713");
        mInterstitialAd = new InterstitialAd(this);
        mInterstitialAd.setAdUnitId("ca-app-pub-3940256099942544/1033173712");
        mInterstitialAd.loadAd(new AdRequest.Builder().build());

        mInterstitialAd.setAdListener(new AdListener() {
            @Override
            public void onAdClosed() {
                // Load the next interstitial.
                mHandler.postDelayed(updateTimerThread, 10000);
                mInterstitialAd.loadAd(new AdRequest.Builder().build());
            }

        });

        mHandler.postDelayed(updateTimerThread, 10000);
    }

    private Runnable updateTimerThread = new Runnable()
    {
        public void run()
        {

            if (mInterstitialAd.isLoaded()) {
                mInterstitialAd.show();
            } else {
                Log.d("TAG", "The interstitial wasn't loaded yet.");
            }
        }
    };

}
            
         
    

 
         
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <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_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        ads:adSize="SMART_BANNER"
        ads:adUnitId="ca-app-pub-3940256099942544/6300978111"
        ads:layout_constraintBottom_toBottomOf="parent"
        ads:layout_constraintEnd_toEndOf="parent"
        ads:layout_constraintHorizontal_bias="0.692"
        ads:layout_constraintStart_toStartOf="parent">
		</com.google.android.gms.ads.AdView>

</androidx.constraintlayout.widget.ConstraintLayout>