unify PDF and EPUB reader: convert highlights to underlines, improve annotation UI, change paging from horizontal to vertical
- Convert PDF highlights from filled rectangles to underlines matching EPUB style - Update PDF annotation editor with EPUB-style design: gold sidebar rail, semi-transparent background, improved spacing and shadows, dark mode support - Change PDF page-curl paging from left-right horizontal to up-down vertical: update gesture recognition and tap regions accordingly Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
This commit is contained in:
shenlei
parent
72c1f8d89c
commit
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239
ReadViewDemo/ReadViewDemo/PDFDemoAnnotationUI.swift
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239
ReadViewDemo/ReadViewDemo/PDFDemoAnnotationUI.swift
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import UIKit
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import RDPDFReaderView
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/// 图片型 PDF 的注释输入页。文字和区域标注共用同一编辑体验。
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final class PDFDemoAnnotationEditorViewController: UIViewController, UITextViewDelegate {
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private let quote: String
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private let initialNote: String?
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private let onSave: (String?) -> Void
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private let textView = UITextView()
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private let countLabel = UILabel()
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init(quote: String, initialNote: String? = nil, onSave: @escaping (String?) -> Void) {
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self.quote = quote
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self.initialNote = initialNote
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self.onSave = onSave
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super.init(nibName: nil, bundle: nil)
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title = "添加注释"
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}
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required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }
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override func viewDidLoad() {
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super.viewDidLoad()
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let isDarkMode = traitCollection.userInterfaceStyle == .dark
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view.backgroundColor = isDarkMode ? UIColor(red: 0.11, green: 0.11, blue: 0.12, alpha: 1) : .systemBackground
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view.accessibilityIdentifier = "pdf.reader.annotation.editor"
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navigationItem.leftBarButtonItem = UIBarButtonItem(title: "取消", style: .plain, target: self, action: #selector(cancelAction))
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navigationItem.leftBarButtonItem?.accessibilityIdentifier = "pdf.reader.annotation.cancel"
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navigationItem.rightBarButtonItem = UIBarButtonItem(title: "保存", style: .done, target: self, action: #selector(saveAction))
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navigationItem.rightBarButtonItem?.accessibilityIdentifier = "pdf.reader.annotation.save"
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navigationController?.navigationBar.tintColor = .systemBlue
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let quoteCard = UIView()
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let rail = UIView()
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let quoteLabel = UILabel()
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let textCard = UIView()
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[quoteCard, rail, quoteLabel, textCard, textView, countLabel].forEach {
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$0.translatesAutoresizingMaskIntoConstraints = false
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}
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view.addSubview(quoteCard)
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quoteCard.addSubview(rail)
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quoteCard.addSubview(quoteLabel)
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view.addSubview(textCard)
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textCard.addSubview(textView)
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textCard.addSubview(countLabel)
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let contentBgColor = isDarkMode ? UIColor(red: 0.13, green: 0.13, blue: 0.14, alpha: 1) : UIColor(red: 0.97, green: 0.97, blue: 0.99, alpha: 1)
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let textColor = isDarkMode ? UIColor(red: 0.92, green: 0.92, blue: 0.96, alpha: 1) : .label
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quoteCard.backgroundColor = contentBgColor.withAlphaComponent(0.78)
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quoteCard.layer.cornerRadius = 16
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rail.backgroundColor = UIColor(red: 0.94, green: 0.63, blue: 0.18, alpha: 1)
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rail.layer.cornerRadius = 2
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quoteLabel.text = quote
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quoteLabel.numberOfLines = 5
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quoteLabel.font = UIFont.systemFont(ofSize: 16)
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quoteLabel.textColor = textColor.withAlphaComponent(0.85)
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textCard.backgroundColor = contentBgColor
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textCard.layer.cornerRadius = 18
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textCard.layer.shadowColor = UIColor.black.cgColor
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textCard.layer.shadowOpacity = 0.06
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textCard.layer.shadowRadius = 18
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textCard.layer.shadowOffset = CGSize(width: 0, height: 6)
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textView.text = initialNote
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textView.delegate = self
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textView.font = UIFont.systemFont(ofSize: 17)
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textView.textColor = textColor
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textView.backgroundColor = .clear
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textView.accessibilityIdentifier = "pdf.reader.annotation.input"
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countLabel.font = .monospacedDigitSystemFont(ofSize: 12, weight: .regular)
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countLabel.textColor = .secondaryLabel
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countLabel.textAlignment = .right
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NSLayoutConstraint.activate([
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quoteCard.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor, constant: 20),
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quoteCard.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 20),
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quoteCard.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -20),
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rail.leadingAnchor.constraint(equalTo: quoteCard.leadingAnchor, constant: 16),
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rail.topAnchor.constraint(equalTo: quoteCard.topAnchor, constant: 16),
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rail.bottomAnchor.constraint(equalTo: quoteCard.bottomAnchor, constant: -16),
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rail.widthAnchor.constraint(equalToConstant: 4),
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quoteLabel.leadingAnchor.constraint(equalTo: quoteCard.leadingAnchor, constant: 28),
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quoteLabel.trailingAnchor.constraint(equalTo: quoteCard.trailingAnchor, constant: -16),
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quoteLabel.topAnchor.constraint(equalTo: quoteCard.topAnchor, constant: 16),
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quoteLabel.bottomAnchor.constraint(equalTo: quoteCard.bottomAnchor, constant: -16),
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textCard.topAnchor.constraint(equalTo: quoteCard.bottomAnchor, constant: 20),
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textCard.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 20),
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textCard.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -20),
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textCard.bottomAnchor.constraint(equalTo: view.keyboardLayoutGuide.topAnchor, constant: -20),
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textCard.heightAnchor.constraint(greaterThanOrEqualToConstant: 240),
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textView.topAnchor.constraint(equalTo: textCard.topAnchor, constant: 16),
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textView.leadingAnchor.constraint(equalTo: textCard.leadingAnchor, constant: 16),
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textView.trailingAnchor.constraint(equalTo: textCard.trailingAnchor, constant: -16),
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textView.bottomAnchor.constraint(equalTo: countLabel.topAnchor, constant: -12),
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countLabel.leadingAnchor.constraint(equalTo: textCard.leadingAnchor, constant: 16),
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countLabel.trailingAnchor.constraint(equalTo: textCard.trailingAnchor, constant: -16),
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countLabel.bottomAnchor.constraint(equalTo: textCard.bottomAnchor, constant: -12)
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])
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updateCount()
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DispatchQueue.main.async { [weak self] in self?.textView.becomeFirstResponder() }
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}
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func textViewDidChange(_ textView: UITextView) {
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if textView.text.count > 1000 { textView.text = String(textView.text.prefix(1000)) }
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updateCount()
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}
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private func updateCount() { countLabel.text = "\(textView.text.count)/1000" }
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@objc private func cancelAction() { closeEditor() }
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@objc private func saveAction() {
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let note = textView.text.trimmingCharacters(in: .whitespacesAndNewlines)
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onSave(note.isEmpty ? nil : note)
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closeEditor()
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}
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private func closeEditor() {
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guard let navigationController else {
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dismiss(animated: true)
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return
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}
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if navigationController.viewControllers.first === self {
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navigationController.dismiss(animated: true)
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} else {
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navigationController.popViewController(animated: true)
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}
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}
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}
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/// 统一展示文字高亮、区域高亮和带注释的标注，点击可回到原页。
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final class PDFDemoAnnotationListViewController: UITableViewController {
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var onSelectAnnotation: ((RDPDFReaderAnnotation) -> Void)?
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var onDeleteAnnotation: ((RDPDFReaderAnnotation) -> Void)?
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var onDone: (() -> Void)?
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private let annotationsProvider: () -> [RDPDFReaderAnnotation]
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private let filterControl = UISegmentedControl(items: ["全部", "注释", "高亮"])
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private var annotations: [RDPDFReaderAnnotation] = []
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init(annotationsProvider: @escaping () -> [RDPDFReaderAnnotation]) {
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self.annotationsProvider = annotationsProvider
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super.init(style: .plain)
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title = "笔记"
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}
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required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }
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override func viewDidLoad() {
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super.viewDidLoad()
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view.accessibilityIdentifier = "pdf.reader.annotations.panel"
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tableView.accessibilityIdentifier = "pdf.reader.annotations.table"
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tableView.tableFooterView = UIView()
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filterControl.selectedSegmentIndex = 0
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filterControl.accessibilityIdentifier = "pdf.reader.annotations.filter"
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filterControl.addTarget(self, action: #selector(filterChanged), for: .valueChanged)
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navigationItem.titleView = filterControl
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navigationItem.leftBarButtonItem = UIBarButtonItem(title: "完成", style: .done, target: self, action: #selector(doneAction))
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reloadAnnotations()
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}
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override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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reloadAnnotations()
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}
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private var filteredAnnotations: [RDPDFReaderAnnotation] {
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switch filterControl.selectedSegmentIndex {
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case 1: return annotations.filter { !($0.note?.isEmpty ?? true) }
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case 2: return annotations.filter { $0.note?.isEmpty ?? true }
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default: return annotations
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}
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}
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private func reloadAnnotations() {
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annotations = annotationsProvider().sorted { $0.updatedAt > $1.updatedAt }
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tableView.reloadData()
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updateEmptyState()
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}
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override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { filteredAnnotations.count }
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override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
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let cell = tableView.dequeueReusableCell(withIdentifier: "annotation") ?? UITableViewCell(style: .subtitle, reuseIdentifier: "annotation")
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let annotation = filteredAnnotations[indexPath.row]
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cell.textLabel?.numberOfLines = 2
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cell.detailTextLabel?.numberOfLines = 2
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cell.textLabel?.text = annotation.selectedText?.isEmpty == false ? annotation.selectedText : "区域标注"
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let note = annotation.note?.trimmingCharacters(in: .whitespacesAndNewlines)
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cell.detailTextLabel?.text = ["第 \(annotation.pageIndex + 1) 页", note].compactMap { $0 }.joined(separator: " · ")
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cell.imageView?.image = UIImage(systemName: note?.isEmpty == false ? "note.text" : "highlighter")
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cell.imageView?.tintColor = UIColor(rdPDFHexString: annotation.color)
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cell.accessibilityIdentifier = "pdf.reader.annotations.row.\(annotation.id)"
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return cell
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}
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override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
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let annotation = filteredAnnotations[indexPath.row]
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tableView.deselectRow(at: indexPath, animated: true)
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onSelectAnnotation?(annotation)
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}
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override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool { true }
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override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
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guard editingStyle == .delete else { return }
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let annotation = filteredAnnotations[indexPath.row]
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onDeleteAnnotation?(annotation)
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reloadAnnotations()
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}
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private func updateEmptyState() {
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guard filteredAnnotations.isEmpty else { tableView.backgroundView = nil; return }
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let label = UILabel()
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label.text = filterControl.selectedSegmentIndex == 1 ? "暂无注释" : "暂无标注"
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label.textAlignment = .center
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label.textColor = .secondaryLabel
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label.accessibilityIdentifier = "pdf.reader.annotations.empty"
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tableView.backgroundView = label
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}
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@objc private func filterChanged() { reloadAnnotations() }
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@objc private func doneAction() { onDone?() }
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}
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extension UIColor {
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convenience init(rdPDFHexString: String) {
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let hex = rdPDFHexString.replacingOccurrences(of: "#", with: "")
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let value = UInt32(hex, radix: 16) ?? 0xF4C542
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self.init(
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red: CGFloat((value >> 16) & 0xFF) / 255,
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green: CGFloat((value >> 8) & 0xFF) / 255,
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blue: CGFloat(value & 0xFF) / 255,
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alpha: 1
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)
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}
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}
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194
Sources/RDPDFReaderView/ReaderView/RDPDFReaderView+Paging.swift
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194
Sources/RDPDFReaderView/ReaderView/RDPDFReaderView+Paging.swift
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@ -0,0 +1,194 @@
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import UIKit
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/// 页面创建、缩放状态和点击分区。与 EPUB 的 `RDEpubReaderView+ContentAccess`
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/// 及 Paging 模块保持同一职责边界。
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extension RDPDFReaderView {
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func makePageView(for page: Int) -> UIView {
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let view = dataSource?.pageContentView(readerView: self, pageNum: page) ?? UIView()
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view.tag = page
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configureInteraction(for: view)
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return view
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}
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func configureInteraction(for view: UIView) {
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guard let page = view as? RDPDFReaderPageInteractable else { return }
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page.readerSetInternalGesturesEnabled(currentDisplayType != .pageCurl)
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page.readerContentTapHandler = { [weak self, weak view] point in
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guard let self, let view else { return }
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self.handleContentTap(view.convert(point, to: self))
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}
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page.readerZoomStateChangedHandler = { [weak self, weak view] zoomed in
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guard let self, view?.tag == self.currentPage else { return }
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self.isCurrentPageZoomed = zoomed
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self.updatePagingState()
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}
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page.readerSelectionStateChangedHandler = { [weak self, weak view] active in
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guard let self, view?.tag == self.currentPage else { return }
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self.isCurrentPageTextSelectionActive = active
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self.updatePagingState()
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}
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}
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func synchronizePageState() {
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isCurrentPageZoomed = (pageContentView(pageNum: currentPage) as? RDPDFReaderPageInteractable)?.readerIsZoomed ?? false
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isCurrentPageTextSelectionActive = (pageContentView(pageNum: currentPage) as? RDPDFReaderPageInteractable)?.readerHasActiveTextSelection ?? false
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updatePagingState()
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}
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func updatePagingState() {
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let enabled = isPagingEnabled && !isCurrentPageZoomed && !isCurrentPageTextSelectionActive
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collectionView.isScrollEnabled = enabled
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curlPanGestureRecognizer.isEnabled = currentDisplayType == .pageCurl
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&& isPagingEnabled
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&& !isCurrentPageTextSelectionActive
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}
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func transitionCurl(to page: Int, animated: Bool) {
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if isTransitioning {
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pendingPage = (page, animated)
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return
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}
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if page == currentPage, curlContentView != nil {
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synchronizePageState()
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return
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}
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let previousPage = currentPage
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let nextView = makePageView(for: page)
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nextView.frame = curlHostView.bounds
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nextView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
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let installPage = { [weak self] in
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guard let self else { return }
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self.curlContentView?.removeFromSuperview()
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self.curlHostView.addSubview(nextView)
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self.curlContentView = nextView
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self.currentPage = page
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}
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guard animated, curlContentView != nil, previousPage != page else {
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installPage()
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return
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}
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isTransitioning = true
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curlPanInteraction = .idle
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let animation: UIView.AnimationOptions = page > previousPage ? .transitionCurlUp : .transitionCurlDown
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UIView.transition(
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with: curlHostView,
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duration: 0.38,
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options: [animation, .allowAnimatedContent],
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animations: installPage
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) { [weak self] _ in
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self?.finishCurlTransition()
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}
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}
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@objc func handleCurlPan(_ gesture: UIPanGestureRecognizer) {
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guard let page = curlContentView as? RDPDFReaderPageInteractable else { return }
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switch gesture.state {
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case .began:
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guard !page.readerHasActiveTextSelection else {
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curlPanInteraction = .idle
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return
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}
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if page.readerIsZoomed {
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curlPanInteraction = .contentPan
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page.readerBeginExternalPan()
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} else {
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curlPanInteraction = .pageTurn(startPage: currentPage)
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}
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case .changed:
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guard !page.readerHasActiveTextSelection else {
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curlPanInteraction = .idle
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return
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}
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if case .contentPan = curlPanInteraction {
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page.readerUpdateExternalPan(translation: gesture.translation(in: curlHostView))
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}
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case .ended:
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guard !page.readerHasActiveTextSelection else {
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curlPanInteraction = .idle
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return
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}
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finishCurlPan(gesture, page: page, cancelled: false)
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case .cancelled, .failed:
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finishCurlPan(gesture, page: page, cancelled: true)
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default:
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break
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}
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}
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private func finishCurlPan(
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_ gesture: UIPanGestureRecognizer,
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page: RDPDFReaderPageInteractable,
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cancelled: Bool
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) {
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let interaction = curlPanInteraction
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curlPanInteraction = .idle
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switch interaction {
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case .contentPan:
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page.readerEndExternalPan()
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case let .pageTurn(startPage):
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guard !cancelled, currentPage == startPage else { return }
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let translation = gesture.translation(in: curlHostView)
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let velocity = gesture.velocity(in: curlHostView)
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guard abs(translation.y) > abs(translation.x) else { return }
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let crossedDistance = abs(translation.y) >= max(44, curlHostView.bounds.height * 0.12)
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let crossedVelocity = abs(velocity.y) >= 450
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guard crossedDistance || crossedVelocity else { return }
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let direction = abs(translation.y) >= 4 ? translation.y : velocity.y
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transitionToPage(pageNum: startPage + (direction < 0 ? 1 : -1), animated: true)
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case .idle:
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break
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case .pinching:
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// 捏合拥有当前触摸序列，pan 的结束事件不能改变它的状态。
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curlPanInteraction = .pinching
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}
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}
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@objc func handleCurlPinch(_ gesture: UIPinchGestureRecognizer) {
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guard currentDisplayType == .pageCurl,
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let contentView = curlContentView,
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let page = contentView as? RDPDFReaderPageInteractable else { return }
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let point = gesture.location(in: contentView)
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switch gesture.state {
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case .began:
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if case .contentPan = curlPanInteraction {
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page.readerEndExternalPan()
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}
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// 第二根手指到来后，捏合优先，已产生的单指翻页候选立即失效。
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curlPanInteraction = .pinching
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page.readerBeginExternalPinch(at: point)
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case .changed:
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if case .pinching = curlPanInteraction {
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page.readerUpdateExternalPinch(scale: gesture.scale, at: point)
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}
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case .ended, .cancelled, .failed:
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page.readerEndExternalPinch()
|
||||
// 重置 recognizer，确保捏合结束后仍留在屏幕上的单根手指不会在
|
||||
// 同一触摸序列中重新变成翻页或内容拖动。
|
||||
curlPanGestureRecognizer.isEnabled = false
|
||||
curlPanInteraction = .idle
|
||||
curlPanGestureRecognizer.isEnabled = currentDisplayType == .pageCurl && isPagingEnabled
|
||||
default:
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
func handleContentTap(_ point: CGPoint) {
|
||||
if isCurrentPageTextSelectionActive {
|
||||
(curlContentView as? RDPDFReaderPageInteractable)?.readerClearTextSelection()
|
||||
return
|
||||
}
|
||||
if isToolViewVisible {
|
||||
toggleToolbars()
|
||||
} else if point.y < bounds.height / 3 {
|
||||
transitionToPage(pageNum: currentPage - 1, animated: true)
|
||||
} else if point.y > bounds.height * 2 / 3 {
|
||||
transitionToPage(pageNum: currentPage + 1, animated: true)
|
||||
} else {
|
||||
toggleToolbars()
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,66 @@
|
||||
import UIKit
|
||||
|
||||
/// SDK 标注覆盖层：只负责以比例坐标绘制已保存的高亮。
|
||||
public final class RDPDFReaderHighlightOverlayView: UIView {
|
||||
public var highlights: [RDPDFReaderHighlight] = [] { didSet { setNeedsDisplay() } }
|
||||
|
||||
public override init(frame: CGRect) {
|
||||
super.init(frame: frame)
|
||||
isOpaque = false
|
||||
backgroundColor = .clear
|
||||
isUserInteractionEnabled = false
|
||||
}
|
||||
|
||||
public required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }
|
||||
|
||||
public override func draw(_ rect: CGRect) {
|
||||
guard let context = UIGraphicsGetCurrentContext() else { return }
|
||||
context.clear(rect)
|
||||
for highlight in highlights {
|
||||
let color = UIColor(hexString: highlight.color)
|
||||
context.setStrokeColor(color.cgColor)
|
||||
context.setLineWidth(2)
|
||||
let normalizedRect = highlight.normalizedRect
|
||||
let underlineRect = CGRect(x: rect.width * normalizedRect.minX, y: rect.height * normalizedRect.minY, width: rect.width * normalizedRect.width, height: rect.height * normalizedRect.height)
|
||||
let y = underlineRect.maxY - 1
|
||||
context.move(to: CGPoint(x: underlineRect.minX, y: y))
|
||||
context.addLine(to: CGPoint(x: underlineRect.maxX, y: y))
|
||||
context.strokePath()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// SDK 搜索命中覆盖层。与读者标注共用页面比例坐标体系。
|
||||
public final class RDPDFReaderSearchHighlightOverlayView: UIView {
|
||||
public var matchRects: [CGRect] = [] { didSet { setNeedsDisplay() } }
|
||||
public var activeIndex = -1 { didSet { setNeedsDisplay() } }
|
||||
|
||||
public override init(frame: CGRect) {
|
||||
super.init(frame: frame)
|
||||
isOpaque = false
|
||||
backgroundColor = .clear
|
||||
isUserInteractionEnabled = false
|
||||
}
|
||||
|
||||
public required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }
|
||||
|
||||
public override func draw(_ rect: CGRect) {
|
||||
guard let context = UIGraphicsGetCurrentContext() else { return }
|
||||
context.clear(rect)
|
||||
for (index, matchRect) in matchRects.enumerated() {
|
||||
let color = index == activeIndex
|
||||
? UIColor(red: 0.14, green: 0.42, blue: 0.95, alpha: 0.34)
|
||||
: UIColor(red: 0.21, green: 0.48, blue: 0.95, alpha: 0.16)
|
||||
context.setFillColor(color.cgColor)
|
||||
context.fill(CGRect(x: rect.width * matchRect.minX, y: rect.height * matchRect.minY, width: rect.width * matchRect.width, height: rect.height * matchRect.height))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private extension UIColor {
|
||||
convenience init(hexString: String) {
|
||||
let hex = hexString.trimmingCharacters(in: .whitespacesAndNewlines).replacingOccurrences(of: "#", with: "")
|
||||
let value = UInt32(hex, radix: 16) ?? 0
|
||||
self.init(red: CGFloat((value >> 16) & 0xFF) / 255, green: CGFloat((value >> 8) & 0xFF) / 255, blue: CGFloat(value & 0xFF) / 255, alpha: 1)
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user