Best Practices for Associating a File Extension With a File in XCode 4?
Best Practices for Associating a File Extension With a File in XCode 4?
- Subject: Best Practices for Associating a File Extension With a File in XCode 4?
- From: Vik Rubenfeld <email@hidden>
- Date: Sat, 03 Sep 2011 12:33:13 -0700
I see that NSDocument has lots of great support for saving files, including:
[self saveDocumentWithDelegate:self didSaveSelector:@selector(didSaveDocument:didSave:contextInfo:) contextInfo:nil];
NSDocument supports several methods for providing info on the document to be saved, including:
- (NSURL *)fileURL //document's location
- (NSData *)dataOfType: (NSString *)type error:(NSError **)error //document's data
...etc.
But I don't yet see a method that returns the file extension for the file.
Going to the app project settings, I filled in a document type as shown in this image:
http://tinyurl.com/3v6hezq
As shown in the image, I filled in a file extension for documents of the document type, "QuickLookOutputDocument," which is one of my app's objects, a subclass of NSDocument. I thought that perhaps this file extension would be used when the document was saved. However, although the data of the document is saved correctly, using:
[self saveDocumentWithDelegate:self didSaveSelector:@selector(didSaveDocument:didSave:contextInfo:) contextInfo:nil];
...no file extension was used.
What am I missing?
Thanks very much in advance to all for any info._______________________________________________
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