How to dynamically group checkboxes in Kotlin

In this android kotlin source code example, we are going to dynamically group checkboxes in Kotlin.

You can copy and adopt this source code example to your Kotlin android project without reinventing the wheel.

Below is a step by step source code to dynamically group checkboxes in Kotlin.

activity_main.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=".CheckBox.CheckBoxActivity18">
    <CheckBox
        android:id="@+id/male"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Male"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"/>
    <CheckBox
        android:id="@+id/female"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Female"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@id/male"/>

</androidx.constraintlayout.widget.ConstraintLayout>

MainActivity.kt

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.CheckBox
import com.bluapp.kotlinview.R

class CheckBoxActivity18 : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_check_box18)
        val male = findViewById(R.id.male) as CheckBox
        val female = findViewById(R.id.female) as CheckBox
        male.setOnCheckedChangeListener { compoundButton, b ->
                if(female.isChecked){
                    female.isChecked=false
                    male.isChecked=b
                }else{
                    male.isChecked=b
                }
        }
        female.setOnCheckedChangeListener { compoundButton, b ->
            if(male.isChecked){
                male.isChecked=false
                female.isChecked=b
            }else{
                female.isChecked=b
            }

        }
    }
}

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