Foodify/app/src/main/res/layout/fragment_preparing.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    tools:context=".Fragment.Order.PreparingFragment"
    >

    <androidx.core.widget.NestedScrollView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        android:id="@+id/root_view"
        >
        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <androidx.recyclerview.widget.RecyclerView
                android:id="@+id/list_order"
                tools:listitem="@layout/item_order"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:layout_constraintTop_toTopOf="parent"
                />

            <ProgressBar
                android:id="@+id/progress_bar"
                android:indeterminateTint="@color/primaryColor"
                app:layout_constraintTop_toBottomOf="@id/list_order"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                />

            <TextView
                android:id="@+id/end_of_list_text"
                android:text="Đã hết"
                android:fontFamily="@font/opensans"
                android:textColor="@color/grayLight"
                android:visibility="gone"
                app:layout_constraintTop_toBottomOf="@id/progress_bar"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                />
        </androidx.constraintlayout.widget.ConstraintLayout>
    </androidx.core.widget.NestedScrollView>

    <LinearLayout
        android:id="@+id/empty_layout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        android:orientation="vertical"
        android:visibility="gone"
        >
        <ImageView
            android:src="@drawable/empty_order"
            android:layout_width="80dp"
            android:layout_height="80dp"
            android:layout_gravity="center"
            />
        <TextView
            android:fontFamily="@font/opensans"
            android:textColor="@color/gray"
            android:text="Không có đơn hàng nào ở đây cả!"
            android:layout_marginTop="10dp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            />

    </LinearLayout>


</androidx.constraintlayout.widget.ConstraintLayout>