Multiple windows mac application - objective-c

Question

I want to make a multiple windows mac application and I am stuck with the multiple window part !
I can display some windows by creating a xib file and using this method :
-(void)popView:(NSString *)viewName {
_windowController = [[AddProdutWindowController alloc] initWithWindowNibName:viewName];
[_windowController showWindow:nil];
}
With
#property (strong, nonatomic) AddProdutWindowController *windowController;
in my header file and AddProductViewController inherit from NSWindowViewController
I have linked a subclass of NSViewController in Xcode to my xib file.
Now I want to send some datas to my new view and show them in some NSTextField and I have not a single clue how to do it !
I'm very confused with the WindowsController and ViewController, I don't exactly know how / where use them.
Thank you for helping.

Answer 1

Try this:
your firstWindowController.h:
#import <Cocoa/Cocoa.h>
#class SecondWindowController;
#interface ResultWindowController : NSWindowController{
SecondWindowController *swc;
}
#property (assign) NSNumber *xyz;
...
your firstWindowController.m:
#import "FirstWindowController.h"
#import "SecondWindowController.h"
#implementation FirstWindowController
#synthesize xyz;
- (IBAction)openSecondWindow:(id *)sender {
if (!swc)
{
swc = [[SecondWindowController alloc] init];
}
[Swc setFwc:self];
[Swc showWindow:self];
your secondWindowController.h:
#import <Cocoa/Cocoa.h>
#class FirstWindowController;
#interface SecondWindowController : NSWindowController {
FirstWindowController *fwc;
}
#property (retain) IBOutlet FirstWindowController *fwc;
#end
your secondWindowController.m:
#import "SecondWindowController.h"
#import "FirstWindowController.h"
#implementation SecondWindowController
#synthesize fwc;
- (id)init
{
if(![super initWithWindowNibName:#"SecondWindow"])
return nil;
NSLog(#"_init: %#", NSStringFromClass([self class]));
return self;
}
- (void)windowDidLoad
{
[super windowDidLoad];
NSLog(#"swc didload self=%p", self); //thats your second window controller
NSLog(#"fwc value is %#", fwd.xyz); // here you should be able to see the value from FirtsWindowController
}