我正在使用“ QLPreviewController”显示文档文件(pdf / doc)。 有什么方法可以获取总页数以及当前页数吗?
像“ 9之9”一样-如何获得
答案 0 :(得分:5)
QuickLook仅用于外观配合。您可以从CGPDFDocument获取元数据
if let url = Bundle.main.url(forResource: "yourFileNameHere", withExtension: "pdf"),
let pdf = CGPDFDocument(url as CFURL) {
let count = pdf.numberOfPages
print(count)
}
对于docx,请尝试安装带有迦太基的ZipZap:github "pixelglow/ZipZap" "8.1"
NSURL *url = [[NSBundle mainBundle] URLForResource:@"demo" withExtension:@"docx"];
ZZArchive* archive = [ZZArchive archiveWithURL:url error:nil];
NSString *pageCount;
for (ZZArchiveEntry* entry in archive.entries) {
if([entry.fileName isEqualToString:@"docProps/app.xml"]) {
NSString *responseString = [[NSString alloc] initWithData:
[entry newDataWithError:nil] encoding:NSUTF8StringEncoding];
//Get the value between tag <Pages> and </Pages>
NSRange tag1 = [responseString rangeOfString:@"<Pages>"];
NSRange tag2 = [responseString rangeOfString:@"</Pages>"];
pageCount = [responseString substringWithRange:
NSMakeRange((tag1.location + tag1.length), (tag2.location - tag1.length - tag1.location))];
}
}
以下是docx元数据的来源:https://www.forensicswiki.org/wiki/Word_Document_(DOCX)