콘텐츠 상세 - 배너 광고 추가

app/src/main/res/layout/activity_audio_content_detail.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:ads="http://schemas.android.com/apk/res-auto"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
@@ -168,6 +169,15 @@
                         tools:src="@drawable/btn_player_repeat" />
                 </androidx.constraintlayout.widget.ConstraintLayout>
 
+                <com.google.android.gms.ads.AdView
+                    android:id="@+id/ad_view"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="13.3dp"
+                    android:visibility="gone"
+                    ads:adSize="SMART_BANNER"
+                    ads:adUnitId="@string/admob_free_content_banner_unit_id" />
+
                 <RelativeLayout
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"