我正在使用“QLPreviewController”来显示文档文件 (pdf/doc)。 有什么方法可以获取总页数和当前页码吗?
像“9 of 9”- 如何得到它
最佳答案
QuickLook 仅适用于外观伴侣。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,尝试使用 carthage 安装 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))];
}
}
这里是 docx 元数据的来源:https://www.forensicswiki.org/wiki/Word_Document_(DOCX)
关于ios - 获取总页数和当前页面 QuickLook,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/55030468/