This 2.5 minute video teaches you about notifications. A notification is a message sent to one or more observing objects informing them of an event. The event observing object has to register with a singleton notification center.
This video is the first video in the Notifications badge from Treehouse, a high-quality video training site with hundreds of short videos. The entire Notifications badge consists of the following videos:
Other topics on Treehouse include topics like …
- Website Basics
- Aesthetic Foundations
- iOS Development
- Responsive Web Design
New videos are added regularly, so it’s a great way to stay up-to-date on all the latest technology and methods. Browse the entire library of videos.