P14.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=".ImageAdapter">

    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:text="Image Button"
        android:textColor="@color/black"
        android:textSize="24sp"
        android:textStyle="bold"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />


    <ImageButton
        android:id="@+id/ibtn1"
        android:layout_width="120dp"
        android:layout_height="100dp"
        android:layout_gravity="start"
        android:layout_marginTop="48dp"
        android:scaleType="fitXY"
        android:src="@drawable/a"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/title">

    </ImageButton>

    <ImageButton
        android:id="@+id/ibtn2"
        android:layout_width="120dp"
        android:layout_height="100dp"
        android:layout_gravity="center"
        android:layout_marginTop="48dp"
        android:scaleType="fitXY"
        android:src="@drawable/b"
        app:layout_constraintEnd_toStartOf="@id/ibtn3"
        app:layout_constraintStart_toEndOf="@id/ibtn1"
        app:layout_constraintTop_toBottomOf="@+id/title">

    </ImageButton>

    <ImageButton
        android:id="@+id/ibtn3"
        android:layout_width="120dp"
        android:layout_height="100dp"
        android:layout_marginTop="48dp"
        android:scaleType="fitXY"
        android:src="@drawable/c"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/title">

    </ImageButton>

</androidx.constraintlayout.widget.ConstraintLayout>