Haptic feedback UINotificationFeedbackGenerator example for iOS 10

HapticFeedback-Notification.swift

import UIKit

let notificationFeedbackGenerator = UINotificationFeedbackGenerator()

// We can inform the feedback generator that it will likely receive events soon,
// which basically 'wakes up' the device's taptic engine for a few seconds, 
// preparing it for use without any latency. You can call this function as many 
// times as you want. Good times to call this are when a gesture begins and right
// after a haptic signal is played.
notificationFeedbackGenerator.prepare()

// Play the desired haptic signals
notificationFeedbackGenerator.notificationOccurred(.success)
notificationFeedbackGenerator.notificationOccurred(.warning)
notificationFeedbackGenerator.notificationOccurred(.error)