Multipeer Connectivity
Multipeer Connectivity (introduced in iOS 7) lets nearby iPhones, iPads, and Macs talk directly to each other using Wi-Fi, peer-to-peer Wi-Fi, or Bluetooth. No internet, no server, no central service required.
2013
43 posts
NSNotification & NSNotificationCenter
NSNotificationCenter acts as a central hub. Any part of an app can send notices or listen for changes from others. Observers sign up for certain events and get a callback when they happen.
Monthly update #0283 • November 2013
Monthly update 283 • November 2013 • 2013-11-01 - 2013-11-30
Never Go Back by Lee Child
Never Go Back sees Reacher return to his old Army unit in Virginia, only to face false charges and a conspiracy, plus a possible daughter.
Monthly update #0282 • October 2013
Monthly update 282 • October 2013 • 2013-10-01 - 2013-10-31
Iceland Day 11
Day 11 of 11 to Iceland together with my brother.
Iceland Day 10
Day 10 of 11 to Iceland together with my brother.
Iceland Day 09
Day 09 of 11 to Iceland together with my brother.
Iceland Day 08
Day 08 of 11 to Iceland together with my brother.
Iceland Day 07
Day 07 of 11 to Iceland together with my brother.
Iceland Day 06
Day 06 of 11 to Iceland together with my brother.
Iceland Day 05
Day 05 of 11 to Iceland together with my brother.
Iceland Day 04
Day 04 of 11 to Iceland together with my brother.
Iceland Day 03
Day 03 of 11 to Iceland together with my brother.
Iceland Day 02
Day 02 of 11 to Iceland together with my brother.
Iceland Day 01
Day 01 of 11 to Iceland together with my brother.
NSError
NSError is Cocoa's way to handle errors without exceptions. It tells about failures with a code, domain, and userInfo dictionary.
Key-Value Observing
Key-Value Observing (KVO) has an ugly, wordy API, but it is one of Cocoa’s most powerful features.
Monthly update #0281 • September 2013
Monthly update 281 • September 2013 • 2013-09-01 - 2013-09-30
The Kill List by Frederick Forsyth
In Frederick Forsyth’s The Kill List, a gripping espionage thriller, a mysterious U.S. agency called TOSA is on a mission to hunt down threats to national security.
Monthly update #0280 • August 2013
Monthly update 280 • August 2013 • 2013-08-01 - 2013-08-31
NSHashTable & NSMapTable
NSHashTable acts as a general version of NSSet. It is mutable, holds weak references, can copy items on input, and handles arbitrary pointers using pointer identity for equality and hashing.
Monthly update #0279 • July 2013
Monthly update 279 • July 2013 • 2013-07-01 - 2013-07-31
World War Z
World War Z (2013), directed by Marc Forster, shows a fast zombie plague. Brad Pitt plays Gerry Lane, a former UN worker pulled back to help. He flies from city to city. Mireille Enos acts as his wife Karin, who waits at home.
NSPredicate
NSPredicate is a Foundation class that defines logical conditions to fetch or filter data. Its syntax mixes SQL WHERE clauses with regex for expressive queries on collections.