Created
July 17, 2020 00:28
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import SwiftUI | |
import PlaygroundSupport | |
struct Sunset: View { | |
@State var backgroundColor = Color.blue | |
@State var sunSetted = false | |
let sunGradient = [Color.yellow, Color.orange] | |
let moonGradient = [Color.gray, Color.black] | |
@State var alignment = Alignment.top | |
var body: some View { | |
ZStack(alignment: alignment) { | |
ZStack { | |
Sun(gradient: sunGradient) | |
Sun(gradient: moonGradient) | |
.opacity(self.sunSetted ? 1 : 0) | |
} | |
GeometryReader { geometry in | |
VStack { | |
Spacer() | |
Blur(style: .systemUltraThinMaterial) | |
.frame(height: geometry.size.height / 2) | |
} | |
} | |
} | |
.background(backgroundColor) | |
.cornerRadius(24) | |
.onAppear { | |
withAnimation(Animation.linear(duration: 12).repeatForever(autoreverses: true)) { | |
self.sunset() | |
} | |
} | |
} | |
func sunset() { | |
backgroundColor = .black | |
sunSetted = true | |
alignment = .bottom | |
} | |
} | |
struct Sun: View { | |
@State var gradient: [Color] | |
var body: some View { | |
Circle() | |
.fill( | |
LinearGradient(gradient: Gradient(colors: gradient), startPoint: .top, endPoint: .bottom) | |
) | |
.frame(width: 192, height: 192) | |
.padding() | |
} | |
} | |
struct Blur: UIViewRepresentable { | |
var style: UIBlurEffect.Style | |
func makeUIView(context: Context) -> UIVisualEffectView { | |
return UIVisualEffectView(effect: UIBlurEffect(style: style)) | |
} | |
func updateUIView(_ uiView: UIVisualEffectView, context: Context) { | |
uiView.effect = UIBlurEffect(style: style) | |
} | |
} | |
PlaygroundPage.current.setLiveView(Sunset()) |
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