NewPipe-app-android/app/src/main/res/layout/fragment_search.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    android:name="org.schabi.newpipe.SearchInfoItemFragment"
    tools:context=".fragments.search.SearchFragment">

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

    <android.support.v7.widget.RecyclerView
        android:id="@+id/list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layoutManager="LinearLayoutManager"
        tools:listitem="@layout/stream_item"
        android:scrollbars="vertical"/>

    <ProgressBar android:id="@+id/loading_progress_bar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:indeterminate="true"
        android:visibility="gone"
        tools:visibility="visible"/>
</RelativeLayout>