1<!-- res/layout/example_activity.xml --> 2<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 android:orientation="vertical" 4 android:layout_width="match_parent" 5 android:layout_height="match_parent"> 6 7 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 8 android:id="@+id/header_container" 9 android:orientation="vertical" 10 android:layout_width="match_parent" 11 android:layout_height="wrap_content" /> 12 13 <androidx.fragment.app.FragmentContainerView 14 xmlns:android="http://schemas.android.com/apk/res/android" 15 android:id="@+id/fragment_container_view" 16 android:layout_width="match_parent" 17 android:layout_height="wrap_content" /> 18</LinearLayout>