June 2011
Intermediate to advanced
590 pages
19h 31m
English
Content preview from iOS Programming: The Big Nerd Ranch Guide, Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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For the More Curious: TXTRecords
While Bonjour does not allow a client and server to exchange information, a service published via Bonjour can include additional information that can be read by clients. For example, a printer could tell clients that it is in the third-floor library, or a workstation could display the rules for using it. Every NSNetService has a TXT Record for this purpose.
You can create a TXT Record with an NSDictionary. This dictionary has some restrictions – its keys can only be NSStrings, and its values must be NSData objects that encapsulate an NSString or binary data. Once you have a valid dictionary, you pass it to the class method dataFromTXTRecordDictionary: of NSNetService and set it as an NSNetService’s TXTXRecordData ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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