Hello, Do any one have any idea on How to Make BackHandler {....} work when dialog is already displayed on Screen. I want to exit app when back button is pressed when Dialog is displayed . But right now that Back event is catch by system and dismiss the Dialog. how to resolve this ?

I'm not necessarily answering your question here, but exiting your app when a dialog is displayed and the user hits the back button? That works completely opposite to what android users are used to on the platform. id reconsider if possible.

May be one of those "are you sure you want to exit the app, press back again to confirm" dialogs.