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50 lines
1.7 KiB
Swift
50 lines
1.7 KiB
Swift
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// https://github.com/bielikb/UIViewPreview/blob/master/Sources/UIViewPreview/UIViewPreview.swift
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#if canImport(SwiftUI) && DEBUG
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import SwiftUI
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public struct UIViewPreview<View: UIView>: UIViewRepresentable {
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public let view: View
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public let width: CGFloat?
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public init(width: CGFloat? = nil, _ builder: @escaping () -> View) {
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self.view = builder()
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self.width = width
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}
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// MARK: - UIViewRepresentable
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public func makeUIView(context: Context) -> UIView {
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return view
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}
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public func updateUIView(_ view: UIView, context: Context) {
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view.translatesAutoresizingMaskIntoConstraints = false
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view.setContentHuggingPriority(.defaultHigh, for: .horizontal)
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view.setContentHuggingPriority(.defaultHigh, for: .vertical)
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if let width = width {
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NSLayoutConstraint.activate([
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view.widthAnchor.constraint(equalToConstant: width),
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])
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}
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}
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}
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public struct UIViewControllerPreview<ViewController: UIViewController>: UIViewControllerRepresentable {
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public let viewController: ViewController
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public init(_ builder: @escaping () -> ViewController) {
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viewController = builder()
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}
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// MARK: - UIViewControllerRepresentable
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public func makeUIViewController(context: Context) -> ViewController {
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viewController
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}
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@available(iOS 13.0, tvOS 13.0, *)
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@available(OSX, unavailable)
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@available(watchOS, unavailable)
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public func updateUIViewController(_ uiViewController: ViewController, context: UIViewControllerRepresentableContext<UIViewControllerPreview<ViewController>>) {
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return
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}
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}
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#endif
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