pdfkit使用AS PDFViewer面对滚动问题

Question

import UIKit
import PDFKit
import composeApp

class IOSNativeViewFactory: NativeViewFactory {
  func createPdfView(path: String) -> UIView {
    let filePath = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
      .first?.appendingPathComponent(path)
    let pdfView = PDFView()
    pdfView.autoScales = true // Enables pinch-to-zoom
    pdfView.displayMode = .singlePageContinuous // Enables scrolling
    pdfView.displayDirection = .vertical
    pdfView.minScaleFactor = 1.0
    pdfView.maxScaleFactor = 4.0 // Adjust zoom limits
    pdfView.scaleFactor = 1.5
    if let filePath {
      if let document = PDFDocument(url: filePath) {
        pdfView.document = document
      }
    }
    return pdfView
  }
}

确定pdfview的尺寸适当 确保PDFView适当尺寸并添加到视图层次结构中。如果pdfview的尺寸不正确，则可能无法响应滚动手势corkel

pdfView.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
    pdfView.topAnchor.constraint(equalTo: view.topAnchor),
    pdfView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
    pdfView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
    pdfView.bottomAnchor.constraint(equalTo: view.bottomAnchor)
])

Answer 1

if let filePath = filePath {
    if let document = PDFDocument(url: filePath) {
        pdfView.document = document
    } else {
        print("Failed to load PDF document")
    }
} else {
    print("Invalid file path")
}

缩放卷轴行为pdfView.backgroundColor = .lightGray // Set a background color to see the bounds