How to set the ringtone in Android from Android activity using Kotlin?

This example demonstrates how to set the ringtone in Android from Android activity using Kotlin.

Step 1 − Create a new project in Android Studio, go to File? New Project and fill all required details to create a new project.

Step 2 − Add the following code to res/layout/activity_main.xml.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   tools:context=".MainActivity">
   <TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_centerHorizontal="true"
      android:layout_marginTop="50dp"
      android:text="Tutorials Point"
      android:textAlignment="center"
      android:textColor="@android:color/holo_green_dark"
      android:textSize="32sp"
      android:textStyle="bold" />
   <Button
      android:id="@+id/btnSelRingtone"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_centerInParent="true"
      android:text="Select Ringtone" />
   <TextView
      android:id="@+id/tvRingtone"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_below="@id/btnSelRingtone"
      android:layout_centerInParent="true"
      android:text="Ringtone Path"
      android:textStyle="bold|italic" />
</RelativeLayout>

Step 3 − Add the following code to src/MainActivity.kt

import android.content.Intent
import android.media.RingtoneManager
import android.net.Uri
import android.os.Bundle
import android.widget.Button
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity
class MainActivity : AppCompatActivity() {
   lateinit var btn: Button
   lateinit var txtView: TextView
   override fun onCreate(savedInstanceState: Bundle?) {
      super.onCreate(savedInstanceState)
      setContentView(R.layout.activity_main)
      title = "KotlinApp"
      btn = findViewById(R.id.btnSelRingtone)
      txtView = findViewById(R.id.tvRingtone)
      btn.setOnClickListener {
         val currentRingtone: Uri = RingtoneManager.getActualDefaultRingtoneUri(this,
         RingtoneManager.TYPE_ALARM)
         val intent = Intent(RingtoneManager.ACTION_RINGTONE_PICKER)
         intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE,
         RingtoneManager.TYPE_RINGTONE)
         intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TITLE, "Select Tone")
         intent.putExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI, currentRingtone)
         intent.putExtra(RingtoneManager.EXTRA_RINGTONE_SHOW_SILENT, false)
         intent.putExtra(RingtoneManager.EXTRA_RINGTONE_SHOW_DEFAULT, true)
         startActivityForResult(intent, 999)
      }
   }
   override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
      super.onActivityResult(requestCode, resultCode, data)
      if (requestCode == 999 && resultCode == Activity.RESULT_OK) {
         val uri = data!!.getParcelableExtra<Uri>(RingtoneManager.EXTRA_RINGTONE_PICKED_URI)
         txtView.text = "From :" + uri.path
      }
   }
}

Step 4 − Add the following code to androidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="app.com.q1">
   <uses-permission android:name="android.permission.WRITE_SETTINGS" tools:ignore="ProtectedPermissions" />
   <application
      android:allowBackup="true"
      android:icon="@mipmap/ic_launcher"
      android:label="@string/app_name"
      android:roundIcon="@mipmap/ic_launcher_round"
      android:supportsRtl="true"
      android:theme="@style/AppTheme">
      <activity android:name=".MainActivity">
         <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
         </intent-filter>
      </activity>
   </application>
</manifest>

Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click the Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen