confused about allocating and releasing objects
confused about allocating and releasing objects
- Subject: confused about allocating and releasing objects
- From: Memo Akten <email@hidden>
- Date: Wed, 27 Aug 2008 11:45:03 +0100
HI All, i'm a bit confused about the 2 scenarios:
NSDictionary *myData1 = [NSDictionary
dictionaryWithContentsOfFile:@"mydata.plist"]; // this one I don't
need to release when I'm done?
NSDictionary *myData2 = [[NSDictionary alloc]
initWithContentsOfFile:@"mydata.plist"]; // this one I do need to
relase when I'm done?
There seems to be a lot of situations in Cocoa where this happens so I
guess this is a generic question for all cases when an object is
created via means of a static method vs using alloc:initWith... (e.g.
NSArray, NSString, NSNumber etc. are just a few I've seen).
Whats the difference between the two methods? (I know the second one
creates a blank dictionary first, and then loads the file - but I mean
which one is better for what purpose? - why would I choose one over
the other). And am I correct in assuming if I use the first method i
do not need to release the variable when I'm done? but do need to
release the variable in the second instance?
Cheers,
Memo.
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