ios - 仅生成 pdf : swift on 11. 3 的写入权限

Question

我在 iOS 11.3 上生成 pdf 时出错。它在 iOS 11.2 上运行良好。

CGDataConsumerCreateWithFilename: failed to open `/note.pdf' for writing: Operation not permitted.
deflateEnd: error -3: (null).

Pdf 生成良好，但当我尝试访问它进行上传时，它会生成错误。相同的代码是:

let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]

let fileURL:URL = documentsURL.appendingPathComponent("note.pdf")

do {
   try FileManager.default.createDirectory(atPath: fileURL.path, withIntermediateDirectories: true, attributes: nil)
} catch let error as NSError {
   NSLog("Unable to create directory \(error.debugDescription)")
}

UIGraphicsBeginPDFContextToFile((fileURL.path as NSString).lastPathComponent as String?, CGRectZero, nil);

最后一行产生错误。

如有任何帮助，我们将不胜感激。

Answer 1

你把文件保存在根目录下，你不能这样做，试试这个

 let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]

            let fileURL:URL = documentsURL.appendingPathComponent("note.pdf")

            do {
                try FileManager.default.createDirectory(atPath: fileURL.path, withIntermediateDirectories: true, attributes: nil)
            } catch let error as NSError {
                NSLog("Unable to create directory \(error.debugDescription)")
            }

            UIGraphicsBeginPDFContextToFile(fileURL.appendingPathComponent("note.pdf").path, CGRect.zero, nil);

Which will get and according to what you are doing you will create a folder note.pdf and then save the file note.pdf inside it