createFileAtPath :contents:attributes:
Creates a file with the specified content and attributes at the given location.
- (BOOL)createFileAtPath:(NSString *)path contents:(NSData*)contents attributes:(NSDictionary *)attributes
Parameters
- path
- The path for the new file.
- contents
- A data object containing the contents of the new file.
- attributes
- A dictionary containing the attributes to associate with the new file. You can use these attributes to set the owner and group numbers, file permissions, and modification date. For a list of keys, see “File Attribute Keys.” If you specify
nilfor attributes, the file is created with a set of default attributes.
Return Value
YES if the operation was successful or if the item already exists, otherwise NO.Discussion of [NSFileManager createFileAtPath: contents: attributes:]
If you specify
nil for the attributes parameter, this method uses a default set of values for the owner, group, and permissions of any newly created directories in the path. Similarly, if you omit a specific attribute, the default value is used. The default values for newly created files are as follows:[NSFileManager createFileAtPath: contents: attributes:]
- Permissions are set according to the umask of the current process. For more information, see
umask. - The owner ID is set to the effective user ID of the process.
- The group ID is set to that of the parent directory.
If a file already exists at path, this method overwrites the contents of that file if the current process has the appropriate privileges to do so.
Example of [NSFileManager createFileAtPath: contents: attributes:]
NSData* tempData = [NSData dataWithContentsOfURL:tempSoundFile]; // reads just fine
NSError* error;
NSFileManager* fileMgr = [NSFileManager defaultManager];
NSString* docDir = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
NSString* uniqueFileName = [[NSString stringWithFormat:@"%@-%@", description.text, [NSDate date]] MD5];
NSString* newAudioFile = [NSString stringWithFormat:@"%@/%@.caf", docDir, uniqueFileName];
if (LOG) { NSLog(@"Copying %@ to %@", tempSoundFile.path, newAudioFile); }
// Have tried either or both as well as moveItemAtPath with the same result
[fileMgr createFileAtPath:newAudioFile contents:tempData attributes:nil];
//[fileMgr copyItemAtPath:tempSoundFile.path toPath:newAudioFile error:&error];
NSData* audioAfter = [NSData [NSData dataWithContentsOfFile:newAudioFile];
