The SwiftUI ProgressView provides a way for apps to visually convey to the user the progress of a long running task such as a large download transaction. ProgressView instances may be configured to display progress either as a straight bar or using a circular style, while the indeterminate style displays a spinning icon which indicates the task is running but without providing progress information. The prevailing style is assigned using the progressViewStyle() modifier which may be applied either to individual ProgressView instances, or to all of the instances within a container view such as a VStack
By adopting the ProgressViewStyle protocol, custom progress view designs of almost any level of complexity can be created.
