Re: NSDocument newbie
Re: NSDocument newbie
- Subject: Re: NSDocument newbie
- From: John Stiles <email@hidden>
- Date: Tue, 26 Jul 2005 16:11:32 -0700
On Jul 26, 2005, at 7:44 AM, John Stiles wrote:
On Jul 25, 2005, at 10:58 PM, James Bucanek wrote:
You want to go one level deeper than the NSData stuff that's
provided and override the following methods:
- (BOOL)readFromFile:(NSString*)filename ofType:(NSString*)docType
- (BOOL)writeToFile:(NSString*)filename ofType:(NSString*)docType
- (void)close
Replace them with code that opens and closes your archive/
whatever. My readFromFile method simply connects to the database.
My writeToFile method does nothing (but return YES) because I
never "write" the document. Close your file in the close method.
I also provide implementations of
- (BOOL)readFromURL:(NSURL*)url ofType:(NSString*)type
- (BOOL)writeToURL:(NSURL*)url ofType:(NSString*)type
which simply call readFromFile and writeToFile. I don't know if
this is necessary, but it lets me sleep at night.
This makes sense. I will definitely take a look at it today. Thanks
for your insights :)
Yup, this worked out well! Thanks for the tip :)
Now I have another NSDocument question. Instead of having my app open
up with a meaningless blank document, I'd like for it to start up
showing the Open dialog. How can I do this? Or at the very least, how
can I make the empty document at startup go away?
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