import SwiftUI
struct ContentView: View {
@State private var errorMessage: String? = nil
var body: some View {
VStack {
Button("Trigger Error") {
errorMessage = "An error occurred. Please try again."
}
.padding()
}
.overlay(
ErrorBanner(message: errorMessage, isShowing: $errorMessage)
.padding(.top, 50),
alignment: .top
)
}
}
struct ErrorBanner: View {
var message: String?
@Binding var isShowing: String?
var body: some View {
if let message = message {
Text(message)
.padding()
.background(Color.red)
.foregroundColor(.white)
.cornerRadius(8)
.onTapGesture {
withAnimation {
isShowing = nil
}
}
.transition(.slide)
}
}
}
@main
struct MyApp: App {
var body: some Scene {
WindowGroup {
ContentView()
}
}
}
` contains both the description and keywords specific to the topic of handling global error banners in SwiftUI.
- The SwiftUI code is structured within a `` block with the class `hljs language-php` for syntax highlighting. Despite being Swift code, it's placed in a language element for demonstration purposes.
- Keywords and description are clearly delineated in their respective `` elements to enhance SEO.
How do I avoid rehashing overhead with std::set in multithreaded code?
How do I find elements with custom comparators with std::set for embedded targets?
How do I erase elements while iterating with std::set for embedded targets?
How do I provide stable iteration order with std::unordered_map for large datasets?
How do I reserve capacity ahead of time with std::unordered_map for large datasets?
How do I erase elements while iterating with std::unordered_map in multithreaded code?
How do I provide stable iteration order with std::map for embedded targets?
How do I provide stable iteration order with std::map in multithreaded code?
How do I avoid rehashing overhead with std::map in performance-sensitive code?
How do I merge two containers efficiently with std::map for embedded targets?