[ Google Cardboard SDK ] how to create a exit function in Andriod APP

Target Platforms XR
1

Hi Guys,

I just create a VR app by using Google Cardboard SDK, when I output the Andriod APP,

there a cross on the left top corner but it has no function, I just wondering can I create a

Exit function ( close the app ) with it? Many thanks!

Have a good day

2

The X at the left top closes the application which is pretty much the problem for us.
But it doesn’t seem to can hang an event to that button as Google VR SDK is handling itself there to close the application.
Using GVR v1.30, Unity 5.6.0f3 with Virtual Reality Supported ‘Cardboard’ will do this behaviour.