Hi List,
I have a warning that I’m trying to understand. Hopefully someone here can
shed some light on it.
I have two relevant classes. My window controller:
@interface ISWindowController : NSWindowController <NSToolbarDelegate>
…
- (IBAction)clear: (id)sender;
...
@end
This method is implemented and works as expected if called directly. (It
clears the search field in the toolbar.)
In the second class, an NSArrayController subclass, I have the following method
override:
- (id)newObject {
NSManagedObject *newObject = [super newObject];
...
// Clear the Search Field via the Window Controller (Responder Chain)
[NSApp sendAction: @selector(clear:) to: nil from: table];
…
}
sendAction:to:from: seems to be the preferred way to invoke the responder chain
to implement the clear: method in the Window controller. However, it generates
the following warning:
“Creating selector for nonexistent method ‘clear:’
I can’t figure out how to get rid of this warning. The window controller’s
header file is imported into the second class. Removing the import causes a
second warning to be generated on the same line, which is what I expected
(Undeclared selector). I’ve also tried using other ways of invoking the
responder chain, like tryToPerform:with: on the table the Array Controller is
managing. It seems to be any attempt to use @selector() that is causing the
warning.
I know how to turn off this warning, what I’d like to understand is why it’s
coming out at all. I thought I was doing everything right here.
Thanks for any insights,
Arved
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