The kinds a handle's back closes: the app has no back from a tab, and an item is not navigation. The method is added only to a handle of one of these kinds that has a screen below it (see ScreenBack).
back
The kinds a handle's
backcloses: the app has no back from a tab, and an item is not navigation. The method is added only to a handle of one of these kinds that has a screen below it (see ScreenBack).