# setAvailableCardEntryMethodChangedCallback

abstract fun setAvailableCardEntryMethodChangedCallback(callback: Callback<Set<CardEntryMethod>>): CallbackReference

Registers a callback to notify the application when the set of available card entry methods changes. For example, as a magstripe reader is inserted or removed, this callback will be called to reflect the availability of the SWIPED card entry method.

#### Parameters

callback

The callback used to notify the app, probably for the purpose of updating a custom prompt UI, when the set of available card entry methods changes.