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August 31, 2025
PreviewProvider with multiple configurations to test your views across different devices instantly. Add .previewDevice(PreviewDevice(rawValue: "iPhone 15 Pro")) and .previewDisplayName() to create a comprehensive preview suite without running simulators.This approach creates multiple preview variations that test different devices, color schemes, and accessibility settings simultaneously in Xcode's preview canvas, enabling rapid UI validation across various configurations.
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
Group {
ContentView()
.previewDevice(PreviewDevice(rawValue: "iPhone 15 Pro"))
.previewDisplayName("iPhone 15 Pro")
ContentView()
.previewDevice(PreviewDevice(rawValue: "iPad Pro (12.9-inch) (6th generation)"))
.previewDisplayName("iPad Pro")
ContentView()
.preferredColorScheme(.dark)
.previewDisplayName("Dark Mode")
ContentView()
.environment(\.dynamicTypeSize, .accessibilityExtraExtraLarge)
.previewDisplayName("Large Text")
}
}
}Testing UI across multiple device configurations early in development catches layout issues, accessibility problems, and design inconsistencies before they reach production. This saves significant debugging time and ensures a consistent user experience across the entire device ecosystem.