Now you can change android volumes in Flutter. You can change MEDIA volume, NOTIFICATION volume, RING Volume, VOICE CALL Volume, ALARM Volume and SYSTEM Volume. This is exclusively for android right now because I don't have max to do the IOS coding and I don't have experience in IOS coding as well. Pull requests for IOS Implementation are welcome.
Even though i added ShowVolumeUI.HIDE , for some phones, particularly samsung phones, the volume change UI is shown on the screen