如何向Android应用发送有关用户已手动更改音量控制键的通知？

Question

I am trying to work out a solution here. I am currently developing an App that streams live recordings. If the User manually changes the Volume Control Keys, I would like this change to notify the App and reflect/update this change on the Virtual Volume Slider Bar in the App?

Answer 1

I would probobally do this:

public boolean onKeyDown(int keyCode, KeyEvent event)  
{  
   if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN || keyCode ==KeyEvent.KEYCODE_VOLUME_UP) {  
       //get the cur volume, set your on screen to this volume
   } else { 
       return super.onKeyDown(keyCode, event);  
   } 
}