tipbuddy5.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/tvTotalAmount"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="32dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="32dp"
        android:textAppearance="@style/TextAppearance.AppCompat.Display4"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:text="17.59"
        android:fontFamily="@font/avenir"/>

    <TextView
        android:id="@+id/tvTotalLabel"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:fontFamily="@font/avenir_bold"
        android:text="@string/total_amount"
        android:textAppearance="@style/TextAppearance.AppCompat.Large"
        android:textStyle="bold"
        app:layout_constraintEnd_toEndOf="@+id/tvTotalAmount"
        app:layout_constraintStart_toStartOf="@+id/tvTotalAmount"
        app:layout_constraintTop_toBottomOf="@+id/tvTotalAmount" />

    <TextView
        android:id="@+id/tvTipLabel"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="32dp"
        android:text="@string/tip"
        android:textAppearance="@style/TextAppearance.AppCompat.Large"
        android:textStyle="bold"
        android:fontFamily="@font/avenir_bold"
        app:layout_constraintStart_toStartOf="@+id/tvTotalAmount"
        app:layout_constraintTop_toBottomOf="@+id/tvTotalLabel" />

    <TextView
        android:id="@+id/tvTipAmount"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="64dp"
        android:textAppearance="@style/TextAppearance.AppCompat.Display1"
        android:fontFamily="@font/avenir_bold"
        app:layout_constraintBaseline_toBaselineOf="@+id/tvTipLabel"
        app:layout_constraintStart_toEndOf="@+id/tvTipLabel"
        tools:text="4.50" />

    <View
        android:id="@+id/divider"
        android:layout_width="wrap_content"
        android:layout_height="1dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="32dp"
        android:layout_marginEnd="8dp"
        android:background="?android:attr/listDivider"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/tvTipAmount" />

    <TextView
        android:id="@+id/tvBillAmountLabel"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="32dp"
        android:fontFamily="@font/avenir_bold"
        android:text="@string/bill_label"
        android:textAppearance="@style/TextAppearance.AppCompat.Large"
        android:textStyle="bold"
        app:layout_constraintStart_toStartOf="@+id/tvTipLabel"
        app:layout_constraintTop_toBottomOf="@+id/divider" />

    <EditText
        android:id="@+id/billEditText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="32dp"
        android:ems="6"
        android:inputType="numberDecimal"
        android:textSize="34sp"
        android:fontFamily="@font/avenir_bold"
        app:layout_constraintBaseline_toBaselineOf="@+id/tvBillAmountLabel"
        app:layout_constraintStart_toEndOf="@+id/tvBillAmountLabel" />

    <TextView
        android:id="@+id/tvTipPercent"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="32dp"
        android:text="@string/tvTipPercent"
        android:textAppearance="@style/TextAppearance.AppCompat.Large"
        android:textStyle="bold"
        android:fontFamily="@font/avenir_bold"
        app:layout_constraintStart_toStartOf="@+id/tvBillAmountLabel"
        app:layout_constraintTop_toBottomOf="@+id/tvBillAmountLabel" />

    <SeekBar
        android:id="@+id/tipSeekBar"
        android:layout_width="200dp"
        android:layout_height="20dp"
        android:layout_marginStart="32dp"
        android:max="25"
        app:layout_constraintBottom_toBottomOf="@+id/tvTipPercent"
        app:layout_constraintStart_toEndOf="@+id/tvTipPercent"
        app:layout_constraintTop_toTopOf="@+id/tvTipPercent" />

</androidx.constraintlayout.widget.ConstraintLayout>