How to show Applovin/Max Banner Ad with layout?

Question

I am new to Applovin/Max. In their documentation position and size of Banner ad set by programmatically. Thats why BannerAd override my app's content.

Banner layout in xml

<com.applovin.mediation.ads.MaxAdView
        android:id="@+id/maxBannerAdLayout"
        android:background="@color/white"
        android:layout_width="match_parent"
        android:layout_height="@dimen/banner_height" />

In documentation banner show progrmatically

adView = new MaxAdView( "YOUR_AD_UNIT_ID", this );
adView.setListener( this );

// Stretch to the width of the screen for banners to be fully functional
int width = ViewGroup.LayoutParams.MATCH_PARENT;

// Get the adaptive banner height.
int heightDp = MaxAdFormat.BANNER.getAdaptiveSize( this ).getHeight();
int heightPx = AppLovinSdkUtils.dpToPx( this, heightDp );

adView.setLayoutParams( new FrameLayout.LayoutParams( width, heightPx ) );
adView.setExtraParameter( "adaptive_banner", "true" );

// Set background or background color for banners to be fully functional
adView.setBackgroundColor( ... );

ViewGroup rootView = findViewById( android.R.id.content );
rootView.addView( adView );

// Load the ad
adView.loadAd();

I have no idea, How can I connect code with banner layout?