从iCloud文档选取器附加iWork文档不起作用，因为它们是目录而不是文件

将任何iWork文档（ Pages ， Keynote ， Numbers ）从UIDocumentPickerViewController转换成NSData似乎并不奏效，因为它们不是文件而是目录。

这是我的代码：

 NSString *fileName = [[url path] lastPathComponent]; NSData *fileData = [[NSFileManager defaultManager] contentsAtPath:[docPickerUrl path]]; NSString *fileExtension = [docPickerUrl pathExtension]; NSString *UTI = (__bridge_transfer NSString *)UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, (__bridge CFStringRef)fileExtension, NULL); NSString *contentType = (__bridge_transfer NSString *)UTTypeCopyPreferredTagWithClass((__bridge CFStringRef)UTI, kUTTagClassMIMEType); 

fileData总是nil因为NSFileManager不能将目录转换为数据。

我从- (void)documentPicker:(UIDocumentPickerViewController *)controller didPickDocumentAtURL:(NSURL *)url

Answer 1

我在这里有同样的问题： iOS8：UIDocumentPickerViewController获取NSData

解决scheme是将iWork文档添加为zip压缩文件，最简单的方法是使用SSZipArchive库，也可以作为cocoapod使用：

 pod 'SSZipArchive', '~> 0.3' 

Answer 2

我build议通过一个NSFileCoordinator对象，这个对象是通过Dropbox和iCloud访问安全范围文件所需的AFAIK。 （在这种情况下，取消注释下面代码中的第一行和倒数第二行）。NSFIleCoordinator的coordinateReadingItemAtURL:所需的options参数是NSFileCoordinatorReadingForUploading 。 这将正常读取单个文件，但会自动将目录变成zip文件。 剥离添加的.zip ，您将拥有一个有效的Pages / Numbers / Keynote文件。 （它也是有效的。）

 - (void)documentPicker:(UIDocumentPickerViewController *)controller didPickDocumentAtURL:(NSURL *)url { //[url startAccessingSecurityScopedResource]; // Necessary for security-scoped files NSFileCoordinator *coordinator = [[NSFileCoordinator alloc] init]; NSError *error; __block NSData *fileData; [coordinator coordinateReadingItemAtURL:url options:NSFileCoordinatorReadingForUploading error:&error byAccessor:^(NSURL *newURL) { // File name for use in writing the file out later NSString *fileName = [newURL lastPathComponent]; NSString *fileExtension = [newURL pathExtension]; // iWork files will be in the form 'Filename.pages.zip' if([fileExtension isEqualToString:@"zip"]) { if([[[newURL URLByDeletingPathExtension] pathExtension] isEqualToString:@"pages"] || [[[newURL URLByDeletingPathExtension] pathExtension] isEqualToString:@"numbers"] || [[[newURL URLByDeletingPathExtension] pathExtension] isEqualToString:@"key"] ) { // Remove .zip if it is an iWork file fileExtension = [[newURL URLByDeletingPathExtension] pathExtension]; fileName = [[newURL URLByDeletingPathExtension] lastPathComponent]; } } NSError *fileConversionError; fileData = [NSData dataWithContentsOfURL:newURL options:NSDataReadingUncached error:&fileConversionError]; // Do something with the file data here } //[url stopAccessingSecurityScopedResource]; // Necessary for security-scoped files } 

相关Apple文档NSFileCoordinator选项在这里： https : //developer.apple.com/library/ios/documentation/Foundation/Reference/NSFileCoordinator_class/#//apple_ref/c/tdef/NSFileCoordinatorReadingOptions

Answer 3

你有没有得到任何与此，我已经尝试使用像SSZipArchive或ZipArchive的东西压缩包，但得到一个崩溃。

这是我得到哪些可能有助于点燃一些想法的地方。

 - (void)documentPicker:(UIDocumentPickerViewController *)controller didPickDocumentAtURL:(NSURL *)url { if (controller.documentPickerMode == UIDocumentPickerModeImport) { NSArray *dirContents = [[NSFileManager defaultManager] contentsOfDirectoryAtURL:url includingPropertiesForKeys:[NSArray arrayWithObject:NSURLNameKey] options:0 error:nil]; NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *newDocDirectory = [paths objectAtIndex:0]; NSString *docDirectory = [dirContents objectAtIndex:0]; BOOL isDir=NO; NSArray *subpaths; NSString *exportPath = docDirectory; NSFileManager *fileManager = [NSFileManager defaultManager]; if ([fileManager fileExistsAtPath:exportPath isDirectory:&isDir] && isDir){ subpaths = [fileManager subpathsAtPath:exportPath]; } NSString *archivePath = [newDocDirectory stringByAppendingString:@".zip"]; ZipArchive *archiver = [[ZipArchive alloc] init]; [archiver CreateZipFile2:archivePath]; for(NSString *path in subpaths) { NSString *longPath = [exportPath stringByAppendingPathComponent:path]; if([fileManager fileExistsAtPath:longPath isDirectory:&isDir] && !isDir) { NSLog(@"adding file %@", path); [archiver addFileToZip:longPath newname:path]; } } NSData *documentData = [NSData dataWithContentsOfFile:archivePath]; //post documentDate as zip file to server 

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