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This is to pop the dialog within it's context. Popping in the `CoolAlert.show(context)` pops using the parent context (or root context in the example app) with falls back to a black/blank screen.
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Introduced
PopScopewrapping theAlertDialogpreventing undesired navigation while the dialog is open. For example, a dialog popup show "Your account needs attention" preventing further interaction with the app until an issue is resolved.Further, popping of the dialog in the above case is only possible provided the dialog context via a button action. Thus, the confirm & cancel buttons both provide the
BuildContextof the dialog itself allow the buttons to pop the dialog and not it's parent widget/route.