session-android/res/layout/conversation_search_nav.xml

<?xml version="1.0" encoding="utf-8"?>
<org.thoughtcrime.securesms.components.ConversationSearchBottomBar
    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:id="@+id/conversation_search_nav"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@color/compose_view_background"
    android:visibility="gone"
    tools:visibility="visible"
    tools:parentTag="android.support.constraint.ConstraintLayout">

    <TextView
        android:id="@+id/conversation_search_position"
        style="@style/Signal.Text.Body"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="16dp"
        android:layout_marginBottom="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toStartOf="@+id/conversation_search_up"
        app:layout_constraintTop_toTopOf="parent"
        tools:text="37 of 73" />

    <ImageView
        android:id="@+id/conversation_search_up"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginBottom="8dp"
        android:background="?selectableItemBackgroundBorderless"
        android:padding="8dp"
        android:src="@drawable/ic_keyboard_arrow_up_white_36dp"
        android:tint="@color/signal_primary"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toStartOf="@+id/conversation_search_down"
        app:layout_constraintTop_toTopOf="parent" />

    <ImageView
        android:id="@+id/conversation_search_down"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginBottom="8dp"
        android:background="?selectableItemBackgroundBorderless"
        android:padding="8dp"
        android:src="@drawable/ic_keyboard_arrow_down_white_24dp"
        android:tint="@color/signal_primary"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <com.github.ybq.android.spinkit.SpinKitView
        style="@style/SpinKitView.DoubleBounce"
        android:id="@+id/conversation_search_progress_wheel"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:padding="8dp"
        android:background="@color/compose_view_background"
        android:visibility="gone"
        app:SpinKit_Color="@color/text"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</org.thoughtcrime.securesms.components.ConversationSearchBottomBar>