How to control volume in android?

Question

Android has the Hardware button for controlling volume (increase/decrease). I want to same functionality by using buttons in my application with visual volume control and it

Answer 1

You need to use the AudioManager class. Developer doc is here. Depending on which volume you want to adjust (ringer/media) you may need to change the audiomode via AudioManager.

Finally, to make the buttons disappear just use View.GONE on them. I would create a Runnable in the onClickListener and use a postDelayed to make the View disappear.