The Combine framework provides a declarative Swift API for processing values over time. It is another excellent framework that released side-by-side with SwiftUI. I already covered it multiple times on my blog, but today I want to talk about one of the key aspects of data processing. Today we will learn how to handle errors during data processing using the Combine framework.
This week we will talk about another core process in SwiftUI. We will learn the procedure of laying out views. We will understand how SwiftUI calculates positions and sizes of our views and how we can change that process using layout priorities.
Binding is one of the several property wrappers that SwiftUI presents us to control data flow in the app. Binding provides us a reference like access to a value type. This week we will understand how and when to use binding. We will learn how to avoid common mistakes while using binding in SwiftUI.
Another iPadOS feature released in SwiftUI with Xcode 11.4 was the drag and drop. Finally, we can use drag and drop API not only with UIKit but also with SwiftUI. This week we will learn all about drag and drop interactions in SwiftUI.
Last week Apple updated iPad Pro and added trackpad support to iPadOS. We finally have Xcode 11.4, which introduces the onHover and hoverEffect modifiers to help us utilize trackpad and mouse support in SwiftUI. This week we will learn how to be a good iOS citizen and add support for the trackpad to our SwiftUI views.
Today we will continue mastering view preferences in SwiftUI that we touched a few weeks ago. Anchor preferences are another type of view preferences provided by SwiftUI. The main goal of anchor preferences is to pass layout data like bounds, center coordinates, etc. to its parent view.
This week we will talk about another great tool that we have in SwiftUI. The alignment guide is a way that we can use to speak to SwiftUI’s layout system. By using alignment guides, we can easily align views that live in different parts of a view hierarchy.
This week we will continue mastering SwiftUI components by learning Toggle. Toggle is a view that we can use to allow users to toggle any boolean state in the app. SwiftUI enables us to customize toggles in a very convenient way by providing ToggleStyle protocol.
This week I want to talk to you about a TextField component in SwiftUI. It might look like an elementary tutorial, but TextField has pretty exciting features like out of the box formatting that we don’t have in UIKit. But let’s start with the basics of the TextField component.
Button is one of the regularly used components in SwiftUI. We use buttons to allow users to produce actions. That’s why it is so essential to generalize the look and feel of buttons in our apps. This week we will master buttons in SwiftUI. We will learn how to customize the look and feel of our buttons.