77 lines
2.6 KiB
Swift
77 lines
2.6 KiB
Swift
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//
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// https://mczachurski.dev
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// Copyright © 2022 Marcin Czachurski and the repository contributors.
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// Licensed under the MIT License.
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//
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import UIKit
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import SwiftUI
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struct HTMLFormattedText: UIViewRepresentable {
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let text: String
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private let textView = UITextView()
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init(_ content: String) {
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self.text = content
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}
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func makeUIView(context: UIViewRepresentableContext<Self>) -> UITextView {
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textView.widthAnchor.constraint(equalToConstant:UIScreen.main.bounds.width - 16).isActive = true
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textView.isSelectable = false
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textView.isUserInteractionEnabled = false
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textView.translatesAutoresizingMaskIntoConstraints = false
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textView.isScrollEnabled = false
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return textView
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}
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func updateUIView(_ uiView: UITextView, context: UIViewRepresentableContext<Self>) {
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DispatchQueue.main.async {
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if let attributeText = self.converHTML(text: text) {
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textView.attributedText = attributeText
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} else {
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textView.text = ""
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}
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}
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}
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private func converHTML(text: String) -> NSAttributedString?{
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guard let data = text.data(using: .utf8) else {
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return nil
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}
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let largeAttributes = [
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NSAttributedString.Key.font: UIFont.systemFont(ofSize: 16),
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NSAttributedString.Key.foregroundColor: UIColor(Color("mainTextColor"))
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]
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let linkAttributes = [
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NSAttributedString.Key.font: UIFont.systemFont(ofSize: 16),
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NSAttributedString.Key.foregroundColor: UIColor(Color("linkColor"))
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]
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if let attributedString = try? NSMutableAttributedString(data: data, options: [.documentType: NSAttributedString.DocumentType.html], documentAttributes: nil) {
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attributedString.enumerateAttributes(in: NSRange(0..<attributedString.length)) { value, range, stop in
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attributedString.setAttributes(largeAttributes, range: range)
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if value.keys.contains(NSAttributedString.Key.link) {
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attributedString.setAttributes(linkAttributes, range: range)
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}
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}
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return attributedString
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} else{
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return nil
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}
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}
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}
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struct HTMLFotmattedText_Previews: PreviewProvider {
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static var previews: some View {
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HTMLFormattedText("<p>Danish-made 1st class kebab</p><p>Say yes thanks to 2kg. delicious kebab, which is confused and cooked.</p><p>Yes thanks for 149.95</p><p>Now you can make the most delicious sandwiches, kebab mix and much more at home</p>")
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}
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}
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