FairEmail/app/src/main/res/layout/fragment_pro.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=".ActivityView">

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:padding="12dp">

            <TextView
                android:id="@+id/tvPending"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/title_pro_pending"
                android:textAppearance="@style/TextAppearance.AppCompat.Medium"
                android:textColor="?android:attr/textColorPrimary"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent" />

            <TextView
                android:id="@+id/tvActivated"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/title_pro_activated"
                android:textAppearance="@style/TextAppearance.AppCompat.Medium"
                android:textColor="?android:attr/textColorPrimary"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/tvPending" />

            <TextView
                android:id="@+id/tvList"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="24dp"
                android:text="@string/title_pro_list"
                android:textAppearance="@style/TextAppearance.AppCompat.Small"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/tvActivated" />

            <Button
                android:id="@+id/btnPurchase"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="24dp"
                android:text="@string/title_pro_purchase"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/tvList" />

            <TextView
                android:id="@+id/tvPrice"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginStart="12dp"
                android:text="5 euro"
                android:textAppearance="@style/TextAppearance.AppCompat.Medium"
                app:layout_constraintBottom_toBottomOf="@+id/btnPurchase"
                app:layout_constraintStart_toEndOf="@+id/btnPurchase"
                app:layout_constraintTop_toTopOf="@+id/btnPurchase" />

            <TextView
                android:id="@+id/tvOnce"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="24dp"
                android:text="@string/title_pro_once"
                android:textAppearance="@style/TextAppearance.AppCompat.Small"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/btnPurchase" />

            <TextView
                android:id="@+id/tvHint"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="12dp"
                android:text="@string/title_pro_hint"
                android:textAppearance="@style/TextAppearance.AppCompat.Small"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/tvOnce" />

            <TextView
                android:id="@+id/tvPriceHint"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="12dp"
                android:text="@string/title_pro_price"
                android:textAppearance="@style/TextAppearance.AppCompat.Small"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/tvHint" />

            <Button
                android:id="@+id/btnCheck"
                style="?android:attr/buttonStyleSmall"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="12dp"
                android:minWidth="0dp"
                android:minHeight="0dp"
                android:text="@string/title_check"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/tvPriceHint" />
        </androidx.constraintlayout.widget.ConstraintLayout>
    </ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>