August 2012
Beginner
432 pages
9h 39m
English
Content preview from iOS App Development Portable GeniusBecome 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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Summarizing UI Creation
You’ve learned a lot in this chapter, so let’s end with a summary.
Apps are made of message handlers.
iOS sends messages to your app when significant events happen or are about to happen.
iOS also sends messages to your app when it needs data or to ask if your app supports a feature, such as screen rotation.
Objects in your app can message iOS to ask for objects, data, or services.
Objects in your app can message each other and themselves.
An app UI is made of visible objects that generate messages when the user interacts with them.
For each screen in the UI, a view controller manages UI content and most of the user interaction, while visible UI content is made of views, subviews, and controls and saved in a nib file.
A technology called MVC is used to minimize ...
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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.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.