Re: Question about respondsToSelector
Re: Question about respondsToSelector
- Subject: Re: Question about respondsToSelector
- From: Andy Lee <email@hidden>
- Date: Mon, 18 Aug 2008 16:33:03 -0400
On Aug 18, 2008, at 2:17 PM, Carmen Cerino Jr. wrote:
Does the id type have enough information for the respondsToSelector
method to work.
It's not whether the id type has information. It's whether the object
itself is able to respond to a message, and that depends on what class
the object is an instance of.
I have a class with an ivar of type id, and when I invoke the
respondsToSelector method it fails when it should succeed.
When you have a problem, try to explain what you expected to happen
and what actually happened. What results would have constituted
success? What actually happened that you are calling failure? A
crash? An error message? A value displayed that you weren't
expecting? What object were you sending the respondsToSelector
message to? What selector were you passing? What was the actual
object in the id variable at the time?
I am assuming it should work fine, because if I skip checking with
the respondsToSelector method and just make the call, it executes
the method. Can someone please tell me what I am doing wrong?
It would be help if you post your code and describe what you are
trying to do.
--Andy
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