Created
September 9, 2024 11:29
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implementation of figma's background blur
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| import SwiftUI | |
| struct VisualEffectView: UIViewRepresentable { | |
| let visualEffectViewConfiguration: (UIVisualEffectView) -> Void | |
| init( | |
| visualEffectViewConfiguration: @escaping (UIVisualEffectView) -> Void = { _ in } | |
| ) { | |
| self.visualEffectViewConfiguration = visualEffectViewConfiguration | |
| } | |
| public func makeUIView(context: Context) -> UIVisualEffectView { | |
| let visualEffectView = UIVisualEffectView() | |
| visualEffectViewConfiguration(visualEffectView) | |
| return visualEffectView | |
| } | |
| func updateUIView(_ uiView: UIVisualEffectView, context: Context) { } | |
| } | |
| struct BackgroundBlurView: View { | |
| let radius: CGFloat | |
| let tintColor: Color? | |
| init(radius: CGFloat, tintColor: Color? = nil) { | |
| self.radius = radius | |
| self.tintColor = tintColor | |
| } | |
| var body: some View { | |
| VisualEffectView { | |
| $0.effect = UIBlurEffect() | |
| $0.backgroundColor = tintColor.map(UIColor.init(_:)) | |
| } | |
| // NOTE: don't know why but it looks like | |
| .blur(radius: radius / 2, opaque: true) | |
| } | |
| } | |
| #Preview { | |
| Image(systemName: "dog") | |
| .resizable() | |
| .scaledToFit() | |
| .frame(width: 100, height: 100) | |
| .overlay { | |
| BackgroundBlurView(radius: 20) | |
| } | |
| } |
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