Sheets in SwiftUI allow you to present views that partly cover the underlying screen. You can present them using view modifiers that respond to a particular state change, like a boolean or an object. Views that partly cover the underlying screen can be a great way to stay in the context while presenting a new flow.

A sheet in SwiftUI is a presentation style that displays a new view on top of the current view. Sheets slide in from the bottom of the screen, which is why they are often referred to as bottom sheets. They cover the main content. SwiftUI has newer features to set the size of the sheet.

SwiftUI sheets are used to present a new view over an existing one. Think of this as a stack of papers. You can have multiple sheets on top of one another, and the middle one can be accessed by removing the ones above it. Here is an example of a sheet being displayed.

To present modals, SwiftUI provides the special view modifier called sheet. Sheet view modifier is very similar to alert and actionSheet, it uses boolean or optional identifiable binding to understand when to present a sheet. It also needs a closure which returns a content view for a sheet.

SwiftUI’s sheets are used to present new views over existing ones, while still allowing users to drag down to dismiss the new view when they are ready.