Bringing an app into foreground from background

Tutorials/Documentation
1

I need to open an app running in the background without restarting it. I’m using Java. Can someone help me with command?

2

if it is Android do:

 try {
   driver.runAppInBackground(1)
 } catch (Exception e) {
  //ignore. sometimes here appium eror happens.
 }
3

Does instrument support bringing app from background ?

4

Its a moto G. I think i’ve tried that method already. I’ll try it again though. Thankyou