April 2020
Beginner
316 pages
8h 20m
English
Content preview from Learn SwiftUI
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Testing the new view in the simulator
Sometimes, we'll want to perform a quick test in the actual simulator rather than the automatic preview window. As we've not yet actually hooked up our view to the existing code, we won't be able to run the app in its current state and see our new View. However, we can make a small tweak with a view to performing a quick test (as long as we remember to revert it back).
Head on over to SceneDelegate.swift and take a look inside. SceneDelegate is generated as part of the project when we first create it. SwiftUI uses this to set up our views and entry points for the app. As you can see, our ContentView is referenced here, which is currently our main View.
To make this quick change, replace the first ContentView ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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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