Function addPaymentSheetEventListener

addPaymentSheetEventListener(
listener: (event: PaymentSheetEvent) => void,
): PaymentSheetEventSubscription
Subscribes to typed lifecycle transitions for the active payment sheet.

Subscribe before calling presentPaymentSheet so the initial presented event is not missed. A failed payment attempt is recoverable and leaves the sheet open; terminal behavior belongs to the result returned by presentation. Remove the subscription when the host screen unmounts or after presentation resolves.
Parameters
- listener: (event: PaymentSheetEvent) => void
  Called in sequence for application-facing lifecycle events.
Returns PaymentSheetEventSubscription
A subscription whose remove method detaches the native listener.
- Defined in events.ts:30