i do the final retouches on my app and one of the things that concerns me is that how we can force the back button on android to exit the app. thank you so much for your help
It's an old problem on Android, the Buildbox team is currently working to fix it. Possibly there is a better one in the new version.
On Android is highly recommended. Many people use the "back" button on the phone to exit applications. In the version of BB 2.2.9 Beta2, this problem is fixed temporarily. http://buildbox.com/forum/index.php?threads/buildbox-2-2-9-beta2.9694/ "B" key workaround for Android back button. Set any button to the "B" key and the Android back button will use this routing/function instead of the default behavior.
Google has certain requirements if you want to be featured... I think there is a thread somewhere if you are interested. We implemented the behavior Google required into BB a couple releases ago. I believe the Android back button exits if you press it from the top-level menu (the one attached to the Start UI).
@Andy something such as this? https://www.buildbox.com/forum/index.php?threads/getting-featured-by-apple.8812/