BarInsta/app/src/main/res/layout/activity_directory_select.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"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="16dp">

    <androidx.appcompat.widget.AppCompatTextView
        android:id="@+id/title"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:text="@string/app_name"
        android:textAppearance="@style/TextAppearance.MaterialComponents.Headline4"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.appcompat.widget.AppCompatTextView
        android:id="@+id/message"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:textAppearance="@style/TextAppearance.MaterialComponents.Body1"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/title" />

    <com.google.android.material.button.MaterialButton
        android:id="@+id/select_dir"
        style="@style/Widget.MaterialComponents.Button.OutlinedButton"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:text="Select Directory"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/message"
        app:layout_constraintVertical_bias="1" />

</androidx.constraintlayout.widget.ConstraintLayout>