Signal-Android/contacts/app/src/main/res/layout/child_item.xml

<?xml version="1.0" encoding="utf-8"?>
<com.google.android.material.card.MaterialCardView 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="wrap_content"
    android:layout_marginBottom="4dp"
    android:clipChildren="false"
    android:clipToPadding="false"
    app:cardCornerRadius="5dp"
    app:cardElevation="5dp">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="4dp">

        <ImageView
            android:id="@+id/contact_photo"
            android:layout_width="40dp"
            android:layout_height="40dp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintBottom_toBottomOf="parent"/>

        <TextView
            android:id="@+id/display_name"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="4dp"
            android:layout_marginBottom="2dp"
            tools:text="Spider-Man"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintStart_toEndOf="@id/contact_photo"
            app:layout_constraintEnd_toEndOf="parent"/>

        <TextView
            android:id="@+id/number"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            tools:text="(111) 222-3333"
            app:layout_constraintTop_toBottomOf="@id/display_name"
            app:layout_constraintStart_toStartOf="@id/display_name"
            app:layout_constraintEnd_toEndOf="parent" />

        <TextView
            android:id="@+id/type"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            tools:text="Mobile"
            app:layout_constraintTop_toBottomOf="@id/number"
            app:layout_constraintStart_toStartOf="@id/number"
            app:layout_constraintEnd_toEndOf="parent" />

        <com.google.android.material.button.MaterialButton
            android:id="@+id/go_button"
            android:layout_width="60dp"
            android:layout_height="0dp"
            android:text="Go"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintBottom_toBottomOf="parent" />

    </androidx.constraintlayout.widget.ConstraintLayout>

</com.google.android.material.card.MaterialCardView>