Best KVC & KVO (Key Value Coding & Key Value Observing) Tutorial
In one of my projects, I needed to update a UILabel whenever a web service fetched has been completed. I asked my issue on stackoverflow.com and they pointed my out on using KVO. Googling pointed me to this excellent tutorial discussing both KVC and KVO. It’s pretty straighforward that noobs like me can get it in an instant.
Check out the link below: