In iOS two of the most common types of view are called List and NavigationView: one represents a scrolling list of data like you see in Settings, and one provides the ability to display a title at the top and optionally the ability to show more information when something is tapped.Cloud Storage for Firebase is a powerful, simple, and cost-effective object Now that you’ve seen some of the basics of SwiftUI, I want to start moving over to the actual app we’re going to build. ![]() Tip: All these color names we’re using are built into SwiftUI, but you can create your own from scratch too. For example, we could apply more padding and a second background color, then even more padding and a third background color: Text("Hello, world!") Many SwiftUI modifiers can be applied multiple times, causing them to stack up and create interesting effects. padding(.horizontal), but for now just stick with padding(). You can specify where you want the padding to be placed, e.g. If you wanted to make the background a little bigger than the text, ask SwiftUI to include some padding before the background, like this: Text("Hello, world!")Īnd now you’ll see the blue background extending beyond the text, which is nicer. Notice how the background fits almost exactly around the edge of the text – Swift knows the exact size of the text, including its natural line spacing allowance, and makes sure the background color is the same size.This is intentional: foreground colors are always simple colors, but backgrounds can include all sorts of other things such as pictures. We set the foreground color of the text using foregroundColor(), but the background color using just background().There are two things you’ll notice there: For example, we could give our text a white foreground color and a blue background color like this: Text("Hello, world!") You can also control the background color of the text by adding another modifier. That will give the text a large font and a blue color. There are lots of these built right in to SwiftUI, and you’ll often find yourself using several at once to get exactly the right effect.įor example, try changing your text to include these modifiers below: Text("Hello, world!") We can customize the way our text looks by adding modifiers. We’re going to be writing a lot more code in there over the course of this tutorial, but first I want to spend a few minutes just noodling around with the basics so you have a better grasp of what’s going on. Finally, it says the UI we want to show is the text “Hello, world!”.That means our ContentView will show other pieces of UI inside. It says the body of this view – the thing that’s actually shown on the screen – will return some kind of SwiftUI view. ![]() You’ll create lots of views in your apps, but each one needs its own unique name. It creates a new piece of UI, known as a view in SwiftUI, that is called ContentView.Swift is the programming language we use to build our apps, but SwiftUI is a set of tools that gives us buttons, images, and other common user interface elements. It tells Swift to bring in the SwiftUI framework.I expect the starter code will change over time, but that’s okay because I want you to delete almost all of it – leave only this behind: import SwiftUIĪs you delete parts, you’ll see the preview on the right change immediately – it really is live, and later on you’ll see it’s interactive too. Go ahead and tap your new playground to open it for editing, and you’ll see Playgrounds splits into two parts: on the left is some simple Swift code to get us started, and on the right is a live preview that shows your actual code running. ![]() This will be called My App by default, and it will be given a random icon – I’ll show you how to change those later. To get started, press the “App” button under “Get a Playground” to create a new project. Sponsor Hacking with Swift and reach the world's largest Swift community! First steps SPONSORED From May 15th to 21st, you can join a FREE crash course for mid/senior iOS devs who want to achieve an expert level of technical and practical skills – it’s the fast track to being a complete senior developer!
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