PlayerAndroid/app/src/main/res/layout/activity_about_content.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:padding="8dp"
  android:orientation="vertical">

  <include layout="@layout/card_retro_info"/>

  <include layout="@layout/card_social"/>

  <include layout="@layout/card_other"/>

  <include layout="@layout/card_credit"/>
</LinearLayout>