Maybe this is obvious, but I don't know how to declare class properties in Objective-C.
I need to cache per-class a dictionary and wonder how put it in the class.
properties have a specific meaning in Objective-C, but I think you mean something that's equivalent to a static variable? E.g. only one instance for all types of Foo?
To declare class functions in Objective-C you use the + prefix instead of - so your implementation would look something like:
// Foo.h
@interface Foo {
}
+ (NSDictionary *)dictionary;
// Foo.m
+ (NSDictionary *)dictionary {
static NSDictionary *fooDict = nil;
if (fooDict == nil) {
// create dict
}
return fooDict;
}