Implementing admob for different activities

Question

I have three activities in total and i am implementing admob for each activity, every activity has its own banner and when the activity is changes the other activity hangs a

Answer 1

you can do it just load ad in application class and use it in any activity.

you can download demo

as I do it,

App class

import android.app.Application;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdSize;
import com.google.android.gms.ads.AdView;

public class App extends Application {

AdView adView;

@Override
public void onCreate() {
    // TODO Auto-generated method stub

    super.onCreate();

    adView = new AdView(this);
    adView.setAdSize(AdSize.SMART_BANNER);
    adView.setAdUnitId("ca-app-pub-1267746788642565/8418489933");
    // Request for Ads
    AdRequest adRequest = new AdRequest.Builder().build();

    // Load ads into Banner Ads
    adView.loadAd(adRequest);
}

public void loadAd(LinearLayout layAd) {

    // Locate the Banner Ad in activity xml
    if (adView.getParent() != null) {
        ViewGroup tempVg = (ViewGroup) adView.getParent();
        tempVg.removeView(adView);
    }

    layAd.addView(adView);

}
}

main Activity

public class MainActivity extends Activity {

App app;
LinearLayout layAd;

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

    layAd = (LinearLayout) findViewById(R.id.layad);

    app = (App) getApplication();
    app.loadAd(layAd);

    Button btnNext = (Button) findViewById(R.id.next);
    btnNext.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Intent iNext = new Intent(MainActivity.this,
                    SecondActivity.class);
            startActivity(iNext);
        }
    });
}

@Override
protected void onResume() {
    // TODO Auto-generated method stub
    app.loadAd(layAd);
    super.onResume();
}
}

Second Activity

public class SecondActivity extends Activity {

App app;

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_second);

    LinearLayout layAd = (LinearLayout) findViewById(R.id.layad);

    app = (App) getApplication();
    app.loadAd(layAd);
}
}

Manifest xml

main activity layout xml

and second activity layout xml