Turn On/Off Bluetooth in android in Kotlin

How to enable/disable bluetooth in android in Kotlin.

In the activity xml file (activity_main.xml), add two buttons and change the text and id as given below.

<Button
    android:id="@+id/btnBluetoothOn"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Turn On Bluetooth"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.5"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    app:layout_constraintVertical_bias="0.692" />

<Button
    android:id="@+id/btnBluetoothOff"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Turn Off Bluetooth"
    android:textColor="@color/white"
    app:backgroundTint="#BEF60A0A"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.516"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    app:layout_constraintVertical_bias="0.797" />

and in the kotlin file ( MainActivity.kt ), just add onClickListeners to the buttons inside the onCreate() as shown below:

class MainActivity : AppCompatActivity() {

    lateinit var myBlueTooth : BluetoothAdapter
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        myBlueTooth = BluetoothAdapter.getDefaultAdapter()

        //Turn On Bluetooth
        btnBluetoothOn.setOnClickListener {
            if (myBlueTooth.isEnabled) {
                //Show this toast if bluetooth is already ON
                Toast.makeText(this, "BlueTooth is already ON", Toast.LENGTH_SHORT).show()
            } else {
                //Turn On bluetooth
                var intent = Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE)
                startActivity(intent)
            }
        }

        btnBluetoothOff.setOnClickListener {
            if (myBlueTooth.isEnabled) {
                //Turn Off bluetooth
                myBlueTooth.disable()
            } else {
                //Show this toast if bluetooth is already OFF
                Toast.makeText(this, "BlueTooth is already Off", Toast.LENGTH_SHORT).show()
            }
        }
    }
}

Add the below code in the AndroidManifest.xml for the permission

<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>

Thanks for reading.