app/src/main/res/layout/activity_item_request.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=".view.activity.activityprovider.ItemRequestActivity">
<LinearLayout
android:id="@+id/layout_spinner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toTopOf="@+id/relativeLayout"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="@+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/select_your_event"
app:layout_constraintBottom_toBottomOf="@+id/id_spinner_event"
app:layout_constraintEnd_toStartOf="@+id/id_spinner_event"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Spinner
android:id="@+id/id_spinner_event"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toTopOf="@+id/relativeLayout"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
</Spinner>
</LinearLayout>
<Button
android:id="@+id/id_button_make_request"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
android:text="@string/send_request_button_text"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<RelativeLayout
android:id="@+id/relativeLayout"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginBottom="16dp"
app:layout_constraintBottom_toTopOf="@id/id_button_make_request"
app:layout_constraintTop_toBottomOf="@id/layout_spinner">
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/id_recycler_items_request"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"
app:layoutManager="LinearLayoutManager" />
</RelativeLayout>
</androidx.constraintlayout.widget.ConstraintLayout>