Getting NSApplicationDelegate protocol
Getting NSApplicationDelegate protocol
- Subject: Getting NSApplicationDelegate protocol
- From: ecir hana <email@hidden>
- Date: Fri, 06 Jul 2012 10:30:06 +0200
Hello,
I'm trying to get the methods a protocol specifies and just stumbled upon
one problem: the following code returns NULL:
Protocol *protocol = objc_getProtocol("NSApplicationDelegate");
I saw (
http://stackoverflow.com/questions/10212119/objc-getprotocol-returns-null-for-nsapplicationdelegate)
that the it is because the protocol was not:
Adopted by a class,
Or referred to somewhere in source code (using @protocol())
As am doing this at runtime, I cannot use "@protocol()", right?
So I thought I will add the protocol to the class:
Protocol *protocol = objc_getProtocol("NSApplicationDelegate");
BOOL class_addProtocol(class, protocol);
The problem, obviously, is that I cannot add a protocol until it been
created and the protocol wont be created until used be a class.
Is there a way to get NSApplicationDelegate protocol besides the
compile-time "@protocol()"?
Also, when I do:
Protocol *protocol = objc_getProtocol("NSTextViewDelegate");
return the protocol even when I didn't create any textviews...?
PS: To get all the method descriptions of a protocol, do I have to call
four times "protocol_getMethodDescription"?
protocol_getMethodDescription(p, aSel, NO, NO);
protocol_getMethodDescription(p, aSel, NO, YES);
protocol_getMethodDescription(p, aSel, YES, NO);
protocol_getMethodDescription(p, aSel, YES, YES);
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