A SwiftUI view that subscribes to a Combine publisher to show different views for values and failures.
This can be used with a data task publisher which then decodes the data into model objects. In this example We display a list of posts when they are received or show the error message on screen if the task fails.
struct PostsView: View {
// Get this publisher from somewhere, maybe a data task publisher
let publisher: AnyPublisher<[Post], Error>
var body: some View {
PublisherView(publisher: publisher,
initial: LoadingView.init,
output: Content.init,
failure: FailureView.init)
}
}
extension PostsView {
fileprivate struct Content: View {
let posts: [Post]
var body: some View {
List(posts) { post in
Text(post.title)
}
}
}
}
struct LoadingView: View {
var body: some View {
// Some awesome loading view
}
}
struct FailureView: View {
let error: Error
var body: some View {
Text(error.localizedDescription)
}
}