Greetings
I got my NSPopUpButton working, but have been informed that it is done
wrong. The last time I submitted this it had a typo and I was
chastised and told to read the Objective-C introduction, so the
question wasn't addressed.
I'd like to submit this bare-bones example for comment.
Description:
- One class, named PopUp, subclass of NSObject
Code:
// Popup.h
// TestPopup
#import <Cocoa/Cocoa.h>
@interface Popup : NSObject
{
NSArray *popupArray;
NSString *selectedGame;
}
@property (readwrite, copy) NSArray *popupArray;
@property (readwrite, copy) NSString *selectedGame;
@end
==============================================
// Popup.m
// TestPopup
#import "Popup.h"
@implementation Popup: NSObject
@synthesize popupArray;
@synthesize selectedGame;
- (void) awakeFromNib
{
[self setPopupArray: [NSArray arrayWithObjects:@"C9", @"F11", nil]];
self.selectedGame = @"C9";
}
@end
Interface Builder nib file MainMenu.nib:
One (1) NSPopUpButton.
One (1) NSArrayController named popUpController. Its class identity is
left as NSArrayController, as is its "Object Controller Class
Name" (set in Attributes pane).
Bindings for the NSPopUpButton:
All three "content" bindings set to popUpController.arrangedObjects.self
QUESTION: How would you implement the binding to the model objects
"popUpArray" and "selectedGame" so that the popup loads from
"popUpArray" and its selection is kept in sync with the property
"selectedGame?" Specifically, is there a way to do it without
instantiating the object PopUp in the nib file?
I know how I have done it, and page 118 of Aaron's 3rd edition says
the same, but I want to hear if there is a "pure" MVC-compliant way to
do it.
Thanks.
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