所以我有这个pdfView,我想做一个,所以它的第一个显示是页面100%的缩放,但是问题是我现在所放大的范围很大,UI看起来并不像那个。
我的代码是这样的:
let pdfView = PDFView()
pdfView.translatesAutoresizingMaskIntoConstraints = false
pdfView.autoScales = true
pdfView.maxScaleFactor = 4.0
pdfView.minScaleFactor = pdfView.scaleFactorForSizeToFit
view.addSubview(pdfView)
pdfView.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor).isActive = true
pdfView.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor).isActive = true
pdfView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor).isActive = true
pdfView.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor).isActive = true
guard let path = Bundle.main.url(forResource: materia , withExtension: "pdf") else { return }
if let document = PDFDocument(url: path) {
pdfView.document = document
}
答案 0 :(得分:0)
我知道这听起来很疯狂,但是您要做的就是将pdfView.autoScales = true
放在pdfView.minScaleFactor = pdfView.scaleFactorForSizeToFit
之后
我的摘录:
let pdfViewer = PDFView();
if let path = Bundle.main.url(forResource: "test", withExtension: "pdf") {
pdfViewer.document = PDFDocument(url: path);
}
pdfViewer.maxScaleFactor = 4.0;
pdfViewer.minScaleFactor = pdfViewer.scaleFactorForSizeToFit;
pdfViewer.autoScales = true;
self.view.addSubview(pdfViewer);
pdfViewer.translatesAutoresizingMaskIntoConstraints = false;
pdfViewer.leadingAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.leadingAnchor, constant: 0).isActive = true;
pdfViewer.trailingAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.trailingAnchor, constant: 0).isActive = true;
pdfViewer.bottomAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.bottomAnchor, constant: 0).isActive = true;
pdfViewer.topAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.topAnchor, constant: 0).isActive = true;