OnClickListener

Main Activity.KT

package com.example.diceroll

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
import android.widget.Toast

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        /** eikhane button ke call kora hoece ... jate kore button er value ke ami niyontron korte pari **/
        val rollButton: Button = findViewById(R.id.roll_button)
        
        /** eikhane listener bosano hoece ... jar karone Button e click dewar por Button Clicked Likha uthbe**/
        rollButton.setOnClickListener {
            Toast.makeText(this,"Button Clicked",Toast.LENGTH_SHORT).show()
        }

    }
}

xml file.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    tools:context=".MainActivity"
    android:layout_gravity="center_vertical"
    android:orientation="vertical"
    >


    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="30sp"
        android:text="1"
        android:layout_gravity="center_horizontal"

        />

    <Button
        android:id="@+id/roll_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="@string/roll" />




</LinearLayout>