![]() ![]() “There’s an inventory sheet you can download from our website.” “There are 100 stones painted and colored by the kids at our program numbered 1-100, and we scatter them,” he explained. Participants can visit the park anytime from dawn to dusk on those days in a quest to seek out special Easter stones. Events originally scheduled for Saturday were moved to Sunday because of the weather. New Paltz is also hosting a separate Easter Stone Scavenger Hunt at Hasbrouck Park on Sunday. “Everyone picks up the eggs and it’s over.”Īnd with the days ticking down to the event, Tinger said everyone will be busy “It’s self-cleaning, it’s helpful,” he said. Tinger said the nature of the egg hunt makes cleanup easier than other events the town puts on. ![]() “For ages 1-3, we hide them under a pile of leaves, for ages 10-12, it takes a longer time,” he said. the morning of the event and simply starts to scatter the eggs, he said. A crew of about 30 people arrives around 10 a.m. Tinger explained how they manage to hide so many eggs. “People like to view the chaos and see who finds the gold and silver eggs.” List(disciplines, id: \.“People like to watch, that makes it easier,” he said. In a UIKit app, this would be a UITableViewController. Start by creating a basic list for the master view of your master-detail app. And don’t worry, SwiftUI collapses the modified view into an efficient data structure, so you get all this convenience with no visible performance hit. SwiftUI encourages you to create small reusable views, then customize them with modifiers for the specific context where you use them. You can chain modifiers like a pipeline to customize any view. A modifier is a method that creates a new view from the existing view. The second tab lists modifiers for layout, effects, text, events and other purposes like presentation, environment and accessibility. Many of these - especially the control views - are familiar to you as UIKit elements, but some are unique to SwiftUI. The first tab lists primitive views for layout and control, plus Other Views and Paints. Then click the button or press Command-Shift-L to open the Library: ![]() Open ContentView.swift, and make sure its canvas is open ( Option-Command-Return). There are lots of primitive views like Text and Color, which you can use as basic building blocks for your custom views. Declaring ViewsĪ SwiftUI view is a piece of your UI: You combine small views to build larger views. Yes, there’s a definite reactive feeling to SwiftUI! So if you’re already using one of the reactive programming frameworks, you’ll probably have an easier time picking up SwiftUI. It recomputes the view and all its children, then renders what has changed.Ī view’s state depends on its data, so you declare the possible states for your view, and how the view appears for each state - how the view reacts to data changes or how data affect the view. The SwiftUI framework takes care of creating views when they should appear and updating them whenever there’s a change to data they depend on. SwiftUI enables you to do declarative app development: You declare both how you want the views in your UI to look and also what data they depend on. At the end of this tutorial, you’ll see how easy it is to use a UIKit view in a SwiftUI app. SwiftUI doesn’t replace UIKit - like Swift and Objective-C, you can use both in the same app. Note: Check out SwiftUI: Getting Started to learn more about the mechanics of developing a single-view SwiftUI app in Xcode. And live preview means you rarely need to launch the simulator. ![]() The subviews keep themselves updated, so you don’t need a view controller either. The canvas preview means you don’t need a storyboard. And it’s code, but a lot less than you’d write for UIKit, so it’s easier to understand, edit and debug. There aren’t any identifier strings to get wrong. You can preview a SwiftUI view side-by-side with its code - a change to one side will update the other side, so they’re always in sync. SwiftUI lets you ignore Interface Builder and storyboards without having to write detailed step-by-step instructions for laying out your UI. You’ll build a master-detail app using the Artwork.swift and MapView.swift files already included in this project. Open the PublicArt project in the PublicArt-Starter folder. Use the Download Materials button at the top or bottom of this tutorial to download the starter project. Some familiarity with UIKit and SwiftUI will be helpful. To see the SwiftUI preview, you need macOS 10.15. Note: This tutorial assumes you’re comfortable with using Xcode to develop iOS apps. ![]()
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