How to dynamically enable or disable Spinner in Kotlin

In this android kotlin source code example, we are going to dynamically enable or disable Spinner 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 enable or disable Spinner 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"
    android:padding="24dp"
    tools:context=".spinner.SpinnerActivity11">

    <Spinner
        android:id="@+id/spinner"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"/>

    <Button
        android:id="@+id/enableSpinnerBtn"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorAccent"
        android:text="Enable SpinnerButton"
        android:textColor="#ffffff"
        android:layout_marginTop="10dp"
        app:layout_constraintTop_toBottomOf="@id/spinner"/>

    <Button
        android:id="@+id/disableSpinnerBtn"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorAccent"
        android:text="Disable SpinnerButton"
        android:textColor="#ffffff"
        android:layout_marginTop="10dp"
        app:layout_constraintTop_toBottomOf="@id/enableSpinnerBtn"/>


</androidx.constraintlayout.widget.ConstraintLayout>

MainActivity.kt

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.ArrayAdapter
import android.widget.Button
import android.widget.Spinner
import com.bluapp.kotlinview.R

class SpinnerActivity11 : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_spinner11)
        val spinner = findViewById(R.id.spinner) as Spinner
        val userNames = arrayOf("Henry", "Mark", "Jack", "Smith", "Clark", "Kelvin", "Denzel")
        val arrayadapter = ArrayAdapter(this@SpinnerActivity11, android.R.layout.simple_spinner_item, userNames)
        spinner.adapter = arrayadapter
        val enableSpinnerBtn = findViewById(R.id.enableSpinnerBtn) as Button
        val disableSpinnerBtn = findViewById(R.id.disableSpinnerBtn) as Button
        enableSpinnerBtn.setOnClickListener {
            spinner.isEnabled = true
        }
        disableSpinnerBtn.setOnClickListener {
                spinner.isEnabled = false
        }
    }
}

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