fragment_participants.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout 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_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="8dp"
    android:orientation="vertical">

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

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <com.google.android.material.textfield.TextInputLayout
            android:id="@+id/container_search"
            style="@style/TextInputLayout"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            app:startIconDrawable="@drawable/ic_search_24">

            <com.google.android.material.textfield.TextInputEditText
                android:id="@+id/text_input_search"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="@string/search_participants"
                android:inputType="textNoSuggestions" />
        </com.google.android.material.textfield.TextInputLayout>

        <TextView
            android:id="@+id/participant_count"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_marginStart="8dp"
            android:background="@drawable/badge_circle_30"
            android:gravity="center"
            android:text="@string/_8"
            android:textColor="@color/white" />

    </LinearLayout>

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        tools:listitem="@layout/list_item_peer_list" />
    </LinearLayout>


</androidx.coordinatorlayout.widget.CoordinatorLayout>