oeffi/oeffi/res/layout/plans_picker_content.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/navigation_drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" >

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

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:animateLayoutChanges="true"
            android:orientation="vertical">

            <TextView
                android:id="@+id/plans_picker_connectivity_warning_box"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="@color/action_bar_appendix"
                android:drawableLeft="@drawable/ic_portable_wifi_off_grey600_24dp"
                android:gravity="center"
                android:paddingBottom="@dimen/list_entry_padding_vertical"
                android:paddingLeft="@dimen/list_entry_padding_horizontal_lax"
                android:paddingRight="@dimen/list_entry_padding_horizontal_verylax"
                android:paddingTop="@dimen/list_entry_padding_vertical"
                android:text="@string/plans_picker_connectivity_warning"
                android:visibility="gone" />

            <LinearLayout
                android:id="@+id/plans_picker_filter_box"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="@color/action_bar_appendix"
                android:gravity="center_vertical"
                android:orientation="horizontal"
                android:visibility="gone" >

                <TextView
                    android:id="@+id/plans_picker_filter_text"
                    android:layout_width="0px"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:drawableLeft="@drawable/ic_search_grey600_24dp"
                    android:drawablePadding="@dimen/list_entry_padding_horizontal"
                    android:gravity="left|center_vertical"
                    android:paddingBottom="@dimen/list_entry_padding_vertical"
                    android:paddingLeft="@dimen/list_entry_padding_horizontal_lax"
                    android:paddingTop="@dimen/list_entry_padding_vertical"
                    android:singleLine="true"
                    android:textSize="@dimen/font_size_large"
                    android:textStyle="bold" />

                <ImageButton
                    android:id="@+id/plans_picker_filter_clear"
                    android:layout_width="36dp"
                    android:layout_height="match_parent"
                    android:gravity="right|center_vertical"
                    android:src="@drawable/ic_clear_black_24dp" />
            </LinearLayout>

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="1" >

                <androidx.recyclerview.widget.RecyclerView
                    android:id="@android:id/list"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent" />

                <TextView
                    android:id="@android:id/empty"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:text="@string/plans_picker_list_empty"
                    android:textSize="16sp"
                    android:textStyle="bold" />
            </FrameLayout>
        </LinearLayout>
    </LinearLayout>

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

</androidx.drawerlayout.widget.DrawerLayout>