After a long project 23, it’s time to ease off and look at something that you might think would be much easier: strings. Yes, those pieces of text we take for granted in almost every program we write – they ought to be fairly straightforward things, but it turns out that they are complicated little beasts and take a little thinking.
In this technique project we’re going to look at why strings often confuse newcomers to Swift, we’ll try out a variety of properties and methods that are useful, and we’re also going to look at how to add formatting to strings – bold, italics, color, and more – using a separate class called NSAttributedString
. Supported for attributed strings is baked into most of UIKit, so you can use it with UILabel
, UITextView
, and more.
In Xcode, go to the File menu and choose New > Playground. Name it Project24, make sure iOS is selected as the platform, then choose Next and save it somewhere you can find later.
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