//<activity android:name=".DictionaryActivity" android:configChanges="keyboardHidden|orientation">
//        </activity>

public class DictionaryActivity extends Activity {
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        buildView();
    }

    public void onConfigurationChanged(Configuration newConfig) {
    	super.onConfigurationChanged(newConfig);
    	buildView();
    }

    public void buildView() {
    	setContentView(R.layout.main);

        AdView ad = (AdView) findViewById(R.id.ad);
        ad.setVisibility(AdView.VISIBLE);
    }

}