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When you create new Project, generated code is actually a (explained in View Operations)
● struct ContentView (that implements View Protocol)
● with a Computed Property body (of Data Type some View that only has a getter)
Generated code
struct ContentView : View {
var body : some View { Text("Hello World") } //Computed Property : Data Type { getter code }
}
Explicit getter & return
struct ContentView : View {
var body : some View { get { return Text("Hello World") } }
}
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Start XCode - Create a new XCode project (File - New - Project)
iOS - Application - Single View - Product Name: TestApp - User Interface: SwiftUI - Folder: \HOME MADE\XCode SwiftUI
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Run in Simulator
– Choose Simulator - Run
– Hardware (Rotate Left/Right, Orientation, Home)
– Screenshots (From XCode 11.4 use Ctrl + Command + C to Save frameless Screenshots to Clipboard)
Run in Preview (automatically updates as you code)
– Resume (by default only shows Layout changes)
– Live Preview Arrow (allows interaction: print inside button action doesn't work)
– Adjust Editor Options (Show Editor Only, Canvas, Layout: Right, Bottom)
Automatic Preview - Landscape (no iPhone frame)
ContentView().previewLayout(.fixed(width: 900, height: 450))
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Import Images Assets - Drag & Drop Files & Folders from Finder (+ - Import…)
Change Icon Assets - AppIcon - Drag & Drop icons from Finder
Change Name Select Project Name (Project Settings) - Tab: General - Section: Identity - Display Name: TestApp
Change Starting Screen SceneDelegate.swift - let contentView = SnapshotsView()
