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

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="300dp"
        android:layout_height="300dp"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toTopOf="@+id/changeImageButton"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintStart_toEndOf="parent"
        android:src="@drawable/java"
        tools:ignore="UnknownId"
        />

    <Button
        android:id="@+id/changeImageButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Change Image"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        android:layout_marginBottom="25dp"
        />

    <TextView
        android:id="@+id/imageDescription"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="I am Java"
        app:layout_constraintTop_toBottomOf="@id/imageView"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        android:layout_marginTop="8dp"
        android:textSize="18sp" />

</androidx.constraintlayout.widget.ConstraintLayout>






package com.example.imageshuffler

import android.os.Bundle
import android.widget.Button
import android.widget.ImageView
import android.widget.TextView
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.material.MaterialTheme
import androidx.compose.material.Surface
import androidx.compose.material.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.tooling.preview.Preview
import com.example.imageshuffler.ui.theme.ImageShufflerTheme

class MainActivity : ComponentActivity() {
    private lateinit var imv : ImageView
    private lateinit var chngbt: Button
    private lateinit var imgdes: TextView
    val imlist = listOf(
        R.drawable.java,
        R.drawable.kotlin,
        R.drawable.python
    )
    var currentimgindx = 0
    private val imgdescription = listOf(
        "Hi I am Java",
        "Hi I am Kotlin",
        "Hi I am Python"
    )
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        imv = findViewById(R.id.imageView)
        chngbt = findViewById(R.id.changeImageButton)
        imgdes = findViewById(R.id.imageDescription)

        chngbt.setOnClickListener {

            changeImage()
        }
        imgdes.text=imgdescription[currentimgindx]
    }
    fun changeImage(){
        currentimgindx = (currentimgindx + 1 ) % imlist.size
        imv.setImageResource(imlist[currentimgindx])
        imgdes.text = imgdescription[currentimgindx]
    }
}