|< Wrap up: our SwiftUI project is complete||How to style text views with fonts, colors, line spacing, and more >|
Updated for Xcode 12.5
Text views show static text on the screen, and are equivalent to
UILabel in UIKit. At their most basic they look like this:
Inside the preview window for your content view you’re likely to see “Automatic preview updating paused” – go ahead and press Resume to have Swift start building your code and show you a live preview of how it looks.
Tip: You can press Opt+Cmd+P to resume these previews at any time.
By default text views wrap across as many lines as they need, but if you’d rather limit the number of lines they can use you should add the
lineLimit modifier, like this:
Text("This is some longer text that is limited to three lines maximum, so anything more than that will cause the text to clip.") .lineLimit(3) .frame(width: 200)
Tip: Notice the way
lineLimit(3) is placed below and to the right of
Text("Hello World"). This is not required, but it does make your code easier to read in the long term.
If you place a line limit on some text then provide it with a string that’s too long to fit in the available space, SwiftUI will truncate the text so that it ends with “...”.
You can adjust the way SwiftUI truncates your text: the default is to remove text from the end and show an ellipsis there instead, but you can also place the ellipsis in the middle or beginning depending on how important the various parts of your string are.
For example, this truncates your text in the middle:
Text("This is an extremely long string of text that will never fit even the widest of iOS devices even if the user has their Dynamic Type setting as small as is possible, so in theory it should definitely demonstrate truncationMode().") .lineLimit(1) .truncationMode(.middle)
Regardless of how you truncate the text, what you’ll see is that your text view sits neatly centered in the main view. This is the default behavior of SwiftUI: unless it’s told to position views somewhere else, it positions them relative to the center of the screen.
SPONSORED Check out Stream's cross-platform open source chat SDK on GitHub! Write once and deploy your app with fully featured chat UI on iOS and macOS.
Link copied to your pasteboard.