How to display the page to the end in a ScrollView when the keyboard is open?

Question

Java

Good day to all!

There is an activity with a fairly simple layout:

spoiler

<?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=".AddObject">

    <androidx.appcompat.widget.Toolbar
        android:id="@+id/toolbar_actionbar"
        android:layout_width="match_parent"
        android:layout_height="?android:actionBarSize"
        android:background="?attr/colorAccent"
        android:theme="@style/AppTheme.AppBarOverlay"
        app:layout_constraintTop_toTopOf="parent" />

    <ScrollView
        android:id="@+id/ScrollThisShit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:fitsSystemWindows="true"
        app:layout_constraintTop_toBottomOf="@id/toolbar_actionbar">

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

            <TextView
                android:id="@+id/TypeLabel"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="8dp"
                android:layout_marginTop="8dp"
                android:layout_marginEnd="8dp"
                android:text="Вид объекта"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent" />

            <Spinner
                android:id="@+id/TypesOfObject"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="8dp"
                android:layout_marginTop="8dp"
                android:layout_marginEnd="8dp"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/TypeLabel" />

            <TextView
                android:id="@+id/DoorLabel"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="8dp"
                android:layout_marginTop="8dp"
                android:layout_marginEnd="8dp"
                android:labelFor="@id/FrontDoor"
                android:text="Парадная:"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/TypesOfObject" />

            <EditText
                android:id="@+id/FrontDoor"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="8dp"
                android:layout_marginTop="8dp"
                android:layout_marginEnd="8dp"
                android:importantForAutofill="no"
                android:inputType="number"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/DoorLabel" />

            <TextView
                android:id="@+id/DescrLabel"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="8dp"
                android:layout_marginTop="8dp"
                android:layout_marginEnd="8dp"
                android:labelFor="@id/Description"
                android:text="Описание"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/FrontDoor" />

            <EditText
                android:id="@+id/Description"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="8dp"
                android:layout_marginTop="8dp"
                android:layout_marginEnd="8dp"
                android:importantForAutofill="no"
                android:inputType="text"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/DescrLabel" />

            <TextView
                android:id="@+id/RemarkLabel"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="8dp"
                android:layout_marginTop="8dp"
                android:layout_marginEnd="8dp"
                android:text="Ремарка"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/Description" />

            <Spinner
                android:id="@+id/Remarks"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="8dp"
                android:layout_marginTop="8dp"
                android:layout_marginEnd="8dp"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/RemarkLabel" />

            <LinearLayout
                android:id="@+id/Buttons"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginStart="8dp"
                android:layout_marginTop="8dp"
                android:layout_marginEnd="8dp"
                android:orientation="horizontal"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/Remarks">

                <androidx.appcompat.widget.AppCompatImageButton
                    android:id="@+id/AddFileButton1"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@mipmap/ic_attachment" />

                <androidx.appcompat.widget.AppCompatImageButton
                    android:id="@+id/AddFileButton2"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@mipmap/ic_attachment" />

                <androidx.appcompat.widget.AppCompatImageButton
                    android:id="@+id/AddFileButton3"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@mipmap/ic_attachment" />

                <androidx.appcompat.widget.AppCompatImageButton
                    android:id="@+id/AddFileButton4"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@mipmap/ic_attachment" />

                <androidx.appcompat.widget.AppCompatImageButton
                    android:id="@+id/AddFileButton5"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@mipmap/ic_attachment" />
            </LinearLayout>

            <Button
                android:id="@+id/OkButton"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="8dp"
                android:layout_marginTop="8dp"
                android:layout_marginEnd="8dp"
                android:text="Сохранить"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/Buttons" />
        </androidx.constraintlayout.widget.ConstraintLayout>
    </ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>

Under normal conditions, it looks like this

The problem is that when you open the keyboard to enter data into the fields, the button overlaps and does not save blood, if you scroll as far as possible, everything is visible except for it


I solved the problem by making ScrollView a parent element, but in this case it scrolls everything, including the toolbar, but I would like the toolbar to be always at the top.

Please let me know if there is a way to do this?