android kotlin - Play default ringtone example

MainActivity.kt

package com.cfsuman.kotlintutorials

import android.app.Activity
import android.content.Context
import android.media.MediaPlayer
import android.media.Ringtone
import android.media.RingtoneManager
import android.os.Bundle
import android.provider.Settings
import android.widget.*


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

        // get the widgets reference from XML layout
        val textView = findViewById<TextView>(R.id.textView)
        val buttonPlay = findViewById<Button>(R.id.buttonPlay)
        val buttonStop = findViewById<Button>(R.id.buttonStop)
        val buttonMediaPlay = findViewById<Button>(R.id.buttonMediaPlay)
        val buttonMediaStop = findViewById<Button>(R.id.buttonMediaStop)


        // Get the device default ringtone
        val ringtone: Ringtone = defaultRingtone

        // Display the default ringtone title
        textView.text = "Ringtone : ${ringtone.getTitle(applicationContext)}"

        // Play the default ringtone
        buttonPlay.setOnClickListener{
            if (!ringtone.isPlaying){
                ringtone.play()
            }
        }

        // Stop playing ringtone
        buttonStop.setOnClickListener{
            if (ringtone.isPlaying){
                ringtone.stop()
            }
        }


        // Get the media player for default ringtone
        val mediaPlayer: MediaPlayer = defaultRingtonePlayer()

        // Play default ringtone using media player
        buttonMediaPlay.setOnClickListener{
            if (!mediaPlayer.isPlaying)mediaPlayer.start()
        }

        // Stop media player
        buttonMediaStop.setOnClickListener{
            if (mediaPlayer.isPlaying){
                mediaPlayer.stop()
            }
        }
    }
}



// Extension property to get default ringtone
val Context.defaultRingtone:Ringtone
    get() {
        val uri = RingtoneManager.getDefaultUri(
            RingtoneManager.TYPE_RINGTONE)
        return RingtoneManager.getRingtone(this, uri)
    }


// Get a media player to play default ringtone
fun Context.defaultRingtonePlayer():MediaPlayer{
    return MediaPlayer.create(this,
        Settings.System.DEFAULT_RINGTONE_URI)
}

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:background="#DCDCDC"
    android:padding="24dp">

    <Button
        android:id="@+id/buttonPlay"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="Play Default Ringtone"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <Button
        android:id="@+id/buttonStop"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="Stop"
        app:layout_constraintStart_toStartOf="@+id/buttonPlay"
        app:layout_constraintTop_toBottomOf="@+id/buttonPlay" />

    <Button
        android:id="@+id/buttonMediaPlay"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="32dp"
        android:text="Play Using Media Player"
        app:layout_constraintStart_toStartOf="@+id/buttonStop"
        app:layout_constraintTop_toBottomOf="@+id/buttonStop" />

    <Button
        android:id="@+id/buttonMediaStop"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="Stop Media Player"
        app:layout_constraintStart_toStartOf="@+id/buttonMediaPlay"
        app:layout_constraintTop_toBottomOf="@+id/buttonMediaPlay" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="32dp"
        android:fontFamily="sans-serif"
        android:textSize="24sp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/buttonMediaStop" />

</androidx.constraintlayout.widget.ConstraintLayout>