P15_a.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"
    android:background="#28283f"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:fontFamily="@font/henny_penny"
        android:text="DeX Food"
        android:textColor="@color/white"
        android:textSize="30sp"
        android:textStyle="bold"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:text="Something hot. Something tasty."
        android:textColor="@color/accent"
        android:textSize="22sp"
        android:textStyle="bold"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/title" />


    <GridLayout
        android:id="@+id/grid_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="8dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="8dp"
        android:columnCount="3"
        android:orientation="horizontal"
        android:rowCount="1"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/textView">

        <ImageView
            android:id="@+id/ibtn1"
            android:layout_width="120dp"
            android:layout_height="100dp"
            android:layout_gravity="start"
            android:scaleType="fitXY"
            android:src="@drawable/a">

        </ImageView>

        <ImageView
            android:id="@+id/ibtn2"
            android:layout_width="120dp"
            android:layout_height="100dp"
            android:layout_gravity="center"
            android:scaleType="fitXY"
            android:src="@drawable/b">

        </ImageView>

        <ImageView
            android:id="@+id/ibtn3"
            android:layout_width="120dp"
            android:layout_height="100dp"
            android:scaleType="fitXY"
            android:src="@drawable/c">

        </ImageView>

    </GridLayout>

    <TextView
        android:id="@+id/choose"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:text="Choose your Favourite food here:"
        android:textColor="@color/accent"
        android:textSize="16sp"
        android:textStyle="bold"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/grid_layout" />

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="420dp"
        android:layout_marginStart="8dp"
        android:layout_marginEnd="8dp"
        android:fillViewport="true"
        android:orientation="vertical"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/choose">


        <ListView
            android:id="@+id/lst_view"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="8dp" />


    </ScrollView>


</androidx.constraintlayout.widget.ConstraintLayout>