如何在没有xml的情况下在设置活动中实现admob广告

import android.os.Bundle;
import android.widget.LinearLayout;

import androidx.appcompat.app.AppCompatActivity;

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

public class MainActivity extends AppCompatActivity {

    private AdView adView;

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

        // 初始化AdMob
        MobileAds.initialize(this);

        // 创建广告视图
        adView = new AdView(this);
        adView.setAdUnitId("YOUR_AD_UNIT_ID");

        // 设置广告请求
        AdRequest adRequest = new AdRequest.Builder().build();
        adView.loadAd(adRequest);

        // 将广告视图添加到活动布局
        LinearLayout adContainer = findViewById(R.id.ad_container);
        adContainer.addView(adView);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        // 销毁广告视图
        if (adView != null) {
            adView.destroy();
        }
    }
}