I try to get my file in my self created Directory in the Documents Directory into a NSData Object like this:
NSString *path = [documentsDirectory stringByAppendingFormat:@"%@%@",@"/",fileName];
NSError* errorr = nil;
NSData *fileData = [NSData dataWithContentsOfFile:path options: 0 error: &errorr];
if (fileData == nil)
{
NSLog(@"Failed to read file, error %@", errorr);
}
else
{
}
But i always get this error:
Failed to read file, error Error Domain=NSCocoaErrorDomain Code=257 "The operation couldn’t be completed. (Cocoa error 257.)" UserInfo=0x156be110 {NSFilePath=/var/mobile/Applications/679253E3-652C-45EE-B589-609E52E4E3B0/Documents/upload/test.xml, NSUnderlyingError=0x156ba7f0 "The operation couldn’t be completed. Permission denied"}
So if i check if the file is readable:
if ([[NSFileManager defaultManager] isReadableFileAtPath: path] == YES)
NSLog (@"File is readable");
else
NSLog (@"File is read only");
i get the result that the file is readable, so why do i get the error if i want to parse that file into NSData?!
UPDATE: i created my file like this:
NSString *filePath = [self dataFilePath:fileName];
[xmlData writeToFile:filePath atomically:YES];
- (NSString *)dataFilePath: (NSString *) path {
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *documentsDirectory = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"upload"];
NSError *error = nil;
if (![[NSFileManager defaultManager] fileExistsAtPath:documentsDirectory])
[[NSFileManager defaultManager] createDirectoryAtPath:documentsDirectory withIntermediateDirectories:NO attributes:nil error:&error];
NSString *documentsPath = [documentsDirectory
stringByAppendingPathComponent:path];
return documentsPath;
}
UPDATE2: After creating the file, i move it into another Directory with this function:
- (void)moveXmlFilesToUploadDirectory
{
@try {
//Check if FILES_DIR exists
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *documentsDirectory = [[paths objectAtIndex:0] stringByAppendingPathComponent:FILES_DIR];//filesDir
NSString *uploadDirectory = [[paths objectAtIndex:0] stringByAppendingPathComponent:UPLOAD_DIR];//filesDir
if ([[NSFileManager defaultManager] fileExistsAtPath:documentsDirectory])
{
NSString *extension = @"xml";
NSArray *contents = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:documentsDirectory error:NULL];
NSEnumerator *e = [contents objectEnumerator];
NSString *filename;
while ((filename = [e nextObject])) {
if ([[filename pathExtension] isEqualToString:extension]) {
[[NSFileManager defaultManager] moveItemAtPath:documentsDirectory toPath:[uploadDirectory stringByAppendingPathComponent:filename] error:NULL];
}
}
}
}
@catch (NSException *exception) {
}
@finally {
}
}
Maybe the Problem is after moving the file! Cause if i try to get my file into a NSData before i move it, everything works...
It seems that you try to copy the whole directory to a destination meant to be a file. The result is that the filepath is a directory path in the end so you can't open it like a file which leads to the permission error message.
You should update your copy code to
while ((filename = [e nextObject])) {
if ([[filename pathExtension] isEqualToString:extension]) {
[[NSFileManager defaultManager] moveItemAtPath:[documentsDirectory stringByAppendingPathComponent: filename] toPath:[uploadDirectory stringByAppendingPathComponent:filename] error:NULL];
}
}
to copy every file individually. That will create than the actual file at the destination path intend of a directory.