android silent mode programmatically code example

Example: mute the phone kotlin

private fun mutePhone() {
  		// permission needed
  		// <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
        val audiomanager = getSystemService(Context.AUDIO_SERVICE) as AudioManager
        audiomanager.ringerMode = AudioManager.RINGER_MODE_SILENT
    }