NEW: Start my new Ultimate Portfolio App course with a free Hacking with Swift+ trial! >>

Showing dictionary definitions using UIReferenceLibraryViewController

Swift version: 5.2

Paul Hudson    @twostraws   

UIKit has a built-in dictionary and a built-in way of showing definitions for that dictionary, all done using UIReferenceLibraryViewController. Before you try using it, you should call its dictionaryHasDefinition() method to make sure a definition exists, like this:

if UIReferenceLibraryViewController.dictionaryHasDefinition(forTerm: "Swift") {
    // code
}

If a definition exists, you create an instance of the view controller using the word you want to show, then present is as normal:

let referenceVC = UIReferenceLibraryViewController(term: "Swift")
present(referenceVC, animated: true)
Hacking with Swift is sponsored by Fernando Olivares

SPONSORED Would you describe yourself as knowledgeable, but struggling when you have to come up with your own code? Fernando Olivares has a new book containing iOS rules you can immediately apply to your coding habits to see dramatic improvements, while also teaching applied programming fundamentals seen in refactored code from published apps.

Try the book!

Sponsor Hacking with Swift and reach the world's largest Swift community!

Available from iOS 8.0

Similar solutions…

About the Swift Knowledge Base

This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.

BUY OUR BOOKS
Buy Pro Swift Buy Swift Design Patterns Buy Testing Swift Buy Hacking with iOS Buy Swift Coding Challenges Buy Swift on Sundays Volume One Buy Server-Side Swift (Vapor Edition) Buy Advanced iOS Volume One Buy Advanced iOS Volume Two Buy Advanced iOS Volume Three Buy Hacking with watchOS Buy Hacking with tvOS Buy Hacking with macOS Buy Dive Into SpriteKit Buy Swift in Sixty Seconds Buy Objective-C for Swift Developers Buy Server-Side Swift (Kitura Edition) Buy Beyond Code

Was this page useful? Let us know!

Average rating: 1.0/5

 
Unknown user

You are not logged in

Log in or create account
 

Link copied to your pasteboard.