I want MyClass to conform to the NSCoding protocol. But I'm puzzled
about how to implement the initWithCoder: method.
Suppose I have this in MyClass.h:
NSString *S1, *S2, *S3;
and this in its init function:
S1 = @"a string";
S2 = [[NSString alloc] init];
S3 = [NSString string];
So to conform to the protocol, I'd have something like this in
MyClass.m too:
- (id)initWithCoder:(NSCoder *)decoder {
self = [super init];
S1 = [decoder decodeObjectForKey:@"S1"];
S2 = [[decoder decodeObjectForKey:@"S2"] retain];
S3 = [[decoder decodeObjectForKey:@"S3"] retain];
return self;
}
(I'm not posting the encodeWithCoder: method.)
So finally, my question: am I right to retain S2 and S3, and not S1?
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