Re-assigning BBUI the back button action after assigning it to another handler

[laxx]

After calling the blackberry.system.event.onHardwareKey(blackberry.system.event.KEY_BACK, handleBackKey); to handle the back button on some certain cases. If I call theblackberry.system.event.onHardwareKey(blackberry.system.event.KEY_BACK, null), each time the back button is clicked, the app still calls the previous callback function. How do I set it to BBUI default back button option which pops the current screen and pushes the previous screen in

[jcarty]

Instead of swapping the onHardwareKey handler, why not set onbackkey in your bb.init and handle everything in the function you pass in?

The standard handler for the back button on bbUI is bb.popScreen.

[laxx]

The issue is I only want to handle the back key action just twice in 2 particular screens but want the default behaviour back in all other screens. So there's no way I can avoid a reassignment.

[jcarty]

If you really have no other choice:

blackberry.system.event.onHardwareKey(blackberry.system.event.KEY_BACK, bb.popScreen);