애드몹 설정 : https://developers.google.com/mobile-ads-sdk/training/admob-fundamentals/getting-started/display-admob-banner?hl=ko


아래 소스를 참고하여 구현 가능
출처 : http://it-backup.tistory.com/14

package com.tistory.smrtlier.admobbanner2;

import com.google.ads.*;
import com.google.ads.AdRequest.ErrorCode;

import android.location.GpsStatus.Listener;
import android.os.Bundle;
import android.app.Activity;
import android.text.InputFilter.LengthFilter;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity implements View.OnClickListener, AdListener{

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

// 광고뷰에 리스너를 설정합니다.
AdView adv = (AdView) findViewById(R.id.adView);
adv.setAdListener(this);

// 버튼 클릭 리스너를 설정합니다.
Button b1 = (Button) findViewById(R.id.b1);
b1.setOnClickListener(this);

Button b2 = (Button) findViewById(R.id.b0);
b2.setOnClickListener(this);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}


    @Override
    public void onClick(View arg0) {
        // TODO Auto-generated method stub
        

        // Toast.makeText(this, "클릭!!", Toast.LENGTH_LONG).show();
        
        
        AdView adv = null;
        
        switch(arg0.getId())
        {
        case R.id.b1 :
            
            // 광고를 출력합니다.
            adv = (AdView)findViewById(R.id.adView);
            adv.loadAd(new AdRequest());
            
            break;
            
            
        case R.id.b0 :
            
            // 광고를 제거합니다.
            adv = (AdView)findViewById(R.id.adView);
            adv.loadAd(null);
            
            break;
            
            
        }
        

    }


    @Override
    public void onDismissScreen(Ad arg0) {
        // TODO Auto-generated method stub
        
        Toast.makeText(this, "풀 스크린 광고창이 닫혔습니다.", Toast.LENGTH_SHORT).show();
        
    }

    @Override
    public void onFailedToReceiveAd(Ad arg0, ErrorCode arg1) {
        // TODO Auto-generated method stub
        
        Toast.makeText(this, "광고 노출에 실패했습니다. 오류내용 : " + arg1, Toast.LENGTH_SHORT).show();
        
    }


    @Override
    public void onLeaveApplication(Ad arg0) {
        // TODO Auto-generated method stub
        Toast.makeText(this, "풀 스크린 광고가 확실히 노출 되었습니다.", Toast.LENGTH_SHORT).show();
    }


    @Override
    public void onPresentScreen(Ad arg0) {
        // TODO Auto-generated method stub
        
        Toast.makeText(this, "광고 클릭으로 인한 스크린이 생성되었습니다.", Toast.LENGTH_SHORT).show();
        
    }
    // 광고 호출이 성공했을 때.
    @Override
    public void onReceiveAd(Ad arg0) {
        // TODO Auto-generated method stub
        Toast.makeText(this, "광고가 성공적으로 호출되었습니다.", Toast.LENGTH_SHORT).show();
    }
}