Signal-Android/app/src/main/res/layout/conversation_settings_button_strip.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_gravity="center_horizontal">

    <LinearLayout
        android:id="@+id/button_strip"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:baselineAligned="false"
        android:orientation="horizontal"
        android:paddingTop="24dp"
        android:paddingBottom="16dp">

        <LinearLayout
            android:id="@+id/button_strip_message_container"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_marginStart="2dp"
            android:layout_marginEnd="2dp"
            android:layout_weight="1"
            android:gravity="center_horizontal"
            android:orientation="vertical">

            <androidx.appcompat.widget.AppCompatImageView
                android:id="@+id/message"
                style="@style/Signal.Widget.ImageView.ActionButton"
                android:contentDescription="@string/ConversationSettingsFragment__message"
                app:srcCompat="@drawable/ic_chat_message_24" />

            <TextView
                android:id="@+id/message_label"
                style="@style/Signal.Widget.TextView.ActionButton"
                android:text="@string/ConversationSettingsFragment__message" />

        </LinearLayout>

        <LinearLayout
            android:id="@+id/button_strip_video_container"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_marginStart="2dp"
            android:layout_marginEnd="2dp"
            android:layout_weight="1"
            android:gravity="center_horizontal"
            android:orientation="vertical">

            <androidx.appcompat.widget.AppCompatImageView
                android:id="@+id/start_video"
                style="@style/Signal.Widget.ImageView.ActionButton"
                android:contentDescription="@string/ConversationSettingsFragment__start_video_call"
                app:srcCompat="@drawable/ic_video_call_24" />

            <TextView
                android:id="@+id/start_video_label"
                style="@style/Signal.Widget.TextView.ActionButton"
                android:text="@string/ConversationSettingsFragment__video" />

        </LinearLayout>

        <LinearLayout
            android:id="@+id/button_strip_audio_container"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_marginStart="2dp"
            android:layout_marginEnd="2dp"
            android:layout_weight="1"
            android:gravity="center_horizontal"
            android:orientation="vertical">

            <androidx.appcompat.widget.AppCompatImageView
                android:id="@+id/start_audio"
                style="@style/Signal.Widget.ImageView.ActionButton"
                android:contentDescription="@string/ConversationSettingsFragment__start_audio_call"
                app:srcCompat="@drawable/ic_phone_right_24" />

            <TextView
                android:id="@+id/start_audio_label"
                style="@style/Signal.Widget.TextView.ActionButton"
                android:text="@string/ConversationSettingsFragment__audio" />

        </LinearLayout>

        <LinearLayout
            android:id="@+id/button_strip_mute_container"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_marginStart="2dp"
            android:layout_marginEnd="2dp"
            android:layout_weight="1"
            android:gravity="center_horizontal"
            android:orientation="vertical">

            <androidx.appcompat.widget.AppCompatImageView
                android:id="@+id/mute"
                style="@style/Signal.Widget.ImageView.ActionButton"
                android:contentDescription="@string/ConversationSettingsFragment__mute"
                app:srcCompat="@drawable/ic_bell_24" />

            <TextView
                android:id="@+id/mute_label"
                style="@style/Signal.Widget.TextView.ActionButton"
                android:text="@string/ConversationSettingsFragment__mute" />

        </LinearLayout>

        <LinearLayout
            android:id="@+id/button_strip_search_container"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_marginStart="2dp"
            android:layout_marginEnd="2dp"
            android:layout_weight="1"
            android:gravity="center_horizontal"
            android:orientation="vertical">

            <androidx.appcompat.widget.AppCompatImageView
                android:id="@+id/search"
                style="@style/Signal.Widget.ImageView.ActionButton"
                android:contentDescription="@string/ConversationSettingsFragment__search"
                app:srcCompat="@drawable/ic_search_24" />

            <TextView
                android:id="@+id/search_label"
                style="@style/Signal.Widget.TextView.ActionButton"
                android:text="@string/ConversationSettingsFragment__search" />

        </LinearLayout>

    </LinearLayout>
</FrameLayout>