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Last active January 17, 2020 22:31
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function to add notification listeners to the Optimizely client
func addListeners() {
let notificationCenter = optimizely.notificationCenter
//notification fired when a value is returned by isFeatureEnabled function call
_ = notificationCenter?.addDecisionNotificationListener(decisionListener: { (type, userId, attributes, decisionInfo) in
print("Received decision notification: \(type) \(userId) \(String(describing: attributes)) \(decisionInfo)")
//notification fired when SDK polls for a new datafile and the datafile has changed
_ = notificationCenter?.addDatafileChangeNotificationListener(datafileListener: { (_) in
print("data file did change!")
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