Hacking with Swift Project 12 - Saving User Data
Book Details
Author(s)
Paul Hudson
ISBN / ASIN
B00S0GDPHG
ISBN-13
978B00S0GDPH2
Sales Rank
#1,990,413
Marketplace
United States 🇺🇸
Description
Learn how to save user settings and data for later use.
This is our fourth technique project, and we're going to go back to project 10 and fix its glaring bug: all the names and faces you add to the app don't get saved, which makes the app rather pointless!
We're going to fix this using a new class called NSUserDefaults and a new protocol called NSCoding. We'll also be using the class NSKeyedUnarchiver that you just met in project 11, along with its counterpart: NSKeyedArchiver. Putting all these together, we're going to update project 10 so that it saves its people array whenever anything is changed, then loads when the app runs.
This is our fourth technique project, and we're going to go back to project 10 and fix its glaring bug: all the names and faces you add to the app don't get saved, which makes the app rather pointless!
We're going to fix this using a new class called NSUserDefaults and a new protocol called NSCoding. We'll also be using the class NSKeyedUnarchiver that you just met in project 11, along with its counterpart: NSKeyedArchiver. Putting all these together, we're going to update project 10 so that it saves its people array whenever anything is changed, then loads when the app runs.
