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at November 30, 2011 07:14 by codeRefiner
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In summary, this is what an init method needs to do: - Call [super init] and assign the result to self. - Check whether self is nil. If so, then exit this method right away and return nil to the caller. - If self was not nil, do additional initialization if necessary. Usually this means you give properties and instance variables their initial values. By default, objects are nil, ints are 0 and BOOLs are NO. If you want to give these variables different initial values, then this is the place to do so. - Return self to the caller. You don’t always need to provide an init method. If your init method doesn’t need to do anything — if there are no properties or instance variables to fill in — then you can leave it out completely and the compiler will provide one for you.
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Here is a breakdown of creating a custom initializer and or general rules of init
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A note about init methods
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iphone
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iPhone