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iOS App Development Portable Genius by Richard Wentk

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Summarizing UI Creation

You’ve learned a lot in this chapter, so let’s end with a summary.

bullet_2c.tif Apps are made of message handlers.

bullet_2c.tif iOS sends messages to your app when significant events happen or are about to happen.

bullet_2c.tif iOS also sends messages to your app when it needs data or to ask if your app supports a feature, such as screen rotation.

bullet_2c.tif Objects in your app can message iOS to ask for objects, data, or services.

bullet_2c.tif Objects in your app can message each other and themselves.

bullet_2c.tif An app UI is made of visible objects that generate messages when the user interacts with them.

bullet_2c.tif 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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