如何在片段视图中添加admob banner？

implementation 'com.google.android.gms:play-services-ads:20.4.0'

<FrameLayout
    android:id="@+id/adContainer"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_gravity="bottom"
    android:background="@android:color/darker_gray" />

import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdSize;
import com.google.android.gms.ads.AdView;

public class YourFragment extends Fragment {

    private AdView adView;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.your_fragment_layout, container, false);

        adView = new AdView(getActivity());
        adView.setAdUnitId("YOUR_AD_UNIT_ID");
        adView.setAdSize(AdSize.BANNER);

        FrameLayout adContainer = view.findViewById(R.id.adContainer);
        adContainer.addView(adView);

        AdRequest adRequest = new AdRequest.Builder().build();
        adView.loadAd(adRequest);

        return view;
    }

    @Override
    public void onDestroyView() {
        if (adView != null) {
            adView.destroy();
        }
        super.onDestroyView();
    }
}

<uses-permission android:name="android.permission.INTERNET" />