Volume control

[brista5one0]

I am a runner and everytime my phone is in my armband while running, the music volume fluctuates. I know it's because the external volume contol button is rubbing against the armband, but there's gotta be a way that volume control can be disabled when the phone/ home screen is locked?

 

[Krobar]

https://play.google.com/store/apps/details?id=com.hourdb.volumelocker. This might work.