fedilab-Android-App/app/src/main/res/layout/activity_manage_accounts_list.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:fitsSystemWindows="true"
    tools:context="app.fedilab.android.activities.InstanceHealthActivity"
    android:layout_margin="@dimen/fab_margin"
    android:id="@+id/container"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <LinearLayout
        android:id="@+id/main_account_container"
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <TextView
            android:id="@+id/list_title"
            android:textSize="20sp"
            android:textColor="@color/titleb"
            android:layout_gravity="center"
            android:gravity="center"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <EditText
            android:id="@+id/search_account"
            android:drawableRight="@drawable/ic_search"
            android:drawableEnd="@drawable/ic_search"
            android:maxLines="1"
            android:layout_marginTop="10dp"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:inputType="text" />
        <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
            android:id="@+id/loader"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center"
            >
            <ProgressBar
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:indeterminate="true" />
        </RelativeLayout>
        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/lv_accounts_current"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:scrollbars="none"
            android:divider="@null"
            />
        <androidx.recyclerview.widget.RecyclerView
            android:visibility="gone"
            android:id="@+id/lv_accounts_search"
            android:layout_width="match_parent"
            android:layout_height="300dp"
            android:scrollbars="none"
            android:divider="@null"
            />
    </LinearLayout>

</LinearLayout>