szkolny/app/src/main/res/layout/activity_grades_editor.xml

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <androidx.appcompat.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            android:elevation="4dp"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

        <TextView
            android:id="@+id/subjectName"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginRight="8dp"
            android:textAppearance="@style/NavView.TextView.Title"
            android:textSize="24sp"
            tools:text="geografia" />

        <TextView
            android:id="@+id/semesterName"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginRight="8dp"
            android:textAppearance="@style/NavView.TextView.Subtitle"
            tools:text="Semestr 1" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="8dp"
            android:orientation="horizontal">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="8dp"
                android:layout_marginRight="8dp"
                android:text="@string/grades_editor_semester_average_before" />

            <TextView
                android:id="@+id/averageBefore"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginEnd="5dp"
                android:layout_marginRight="5dp"
                android:background="@drawable/bg_rounded_4dp"
                android:paddingLeft="5dp"
                android:paddingRight="5dp"
                android:textColor="@color/black"
                android:textStyle="bold"
                tools:text="0.63" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_marginTop="4dp"
            android:layout_height="wrap_content"
            android:orientation="horizontal">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="8dp"
                android:layout_marginRight="8dp"
                android:text="@string/grades_editor_semester_average_after" />

            <TextView
                android:id="@+id/averageAfter"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginEnd="5dp"
                android:layout_marginRight="5dp"
                android:background="@drawable/bg_rounded_4dp"
                android:paddingLeft="5dp"
                android:paddingRight="5dp"
                android:textColor="@color/black"
                android:textStyle="bold"
                tools:text="2.75" />
        </LinearLayout>

        <LinearLayout
            android:id="@+id/yearAverageContainer"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginTop="8dp"
                android:orientation="horizontal">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="8dp"
                    android:layout_marginRight="8dp"
                    android:text="@string/grades_editor_semester_year_average_before" />

                <TextView
                    android:id="@+id/yearAverageBefore"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginEnd="5dp"
                    android:layout_marginRight="5dp"
                    android:background="@drawable/bg_rounded_4dp"
                    android:paddingLeft="5dp"
                    android:paddingRight="5dp"
                    android:textColor="@color/black"
                    android:textStyle="bold"
                    tools:text="0.63" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginTop="4dp"
                android:orientation="horizontal">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="8dp"
                    android:layout_marginRight="8dp"
                    android:text="@string/grades_editor_semester_year_average_after" />

                <TextView
                    android:id="@+id/yearAverageAfter"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginEnd="5dp"
                    android:layout_marginRight="5dp"
                    android:background="@drawable/bg_rounded_4dp"
                    android:paddingLeft="5dp"
                    android:paddingRight="5dp"
                    android:textColor="@color/black"
                    android:textStyle="bold"
                    tools:text="2.75" />
            </LinearLayout>

        </LinearLayout>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginRight="8dp"
            android:text="@string/grades_editor_modify_help"
            android:textStyle="italic" />

        <Button
            android:id="@+id/addGrade"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginRight="8dp"
            android:minHeight="0dp"
            android:text="@string/grades_editor_add_grade" />

        <Button
            android:id="@+id/restoreGrades"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginRight="8dp"
            android:minHeight="0dp"
            android:text="@string/grades_editor_restore" />


        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/listView"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

    </LinearLayout>

</layout>