isReadyToPay
Call isReadyToPay before starting your Samsung Pay flow. isReadyToPay will call you back with the status of Samsung Pay. If if the status of Samsung Pay is anything but [SamsungPayStatus.SPAY_READY], the listener will be called back with a value of false. If the Samsung Pay callback returns an error, see SamsungPayError for a list of possible error codes
Parameters
callback