NSWindowController showWindow:nil does nothing

Question

Like in the title, [myWindowController showWindow:nil] doesn't work. Here are some facts you may need to know:

My window controller: KRAuthenticationWindowController
Interface builder file: AuthenticationWindow.xib
File's Owner is KRAuthenticationWindowController
window outlet is connected to the window
Window's delegate is connected to File's Owner
Window's Visible at launch is unchecked
Window's Release when closed is also unchecked

My code is presented below:

// KRApplicationDelegate.m

- (void)applicationDidFinishLaunching:(NSNotification *)notification {
    NSLog(@"%s",__PRETTY_FUNCTION__);
    KRAuthenticationWindowController *authWindowController = [[KRAuthenticationWindowController alloc] init];
    [authWindowController showWindow:nil];
    [[authWindowController window] makeKeyAndOrderFront:nil];
}

// KRAuthenticationWindowController.m

- (id)init {
    self = [super initWithWindowNibName:@"AuthenticationWindow"];
    if(!self) return nil;
    NSLog(@"%s",__PRETTY_FUNCTION__);
    return self;
}

- (void)loadWindow {
    [super loadWindow];
    [self.window setBackgroundColor:[NSColor colorWithDeviceWhite:0.73 alpha:1]];
    NSLog(@"%s",__PRETTY_FUNCTION__);
}

- (void)windowDidLoad {
    [super windowDidLoad];
    NSLog(@"%s",__PRETTY_FUNCTION__);
}

- (void)showWindow:(id)sender {
    [super showWindow:sender];
    NSLog(@"%@",self.window);
    NSLog(@"%s",__PRETTY_FUNCTION__);
}

My console output:

2013-02-24 16:21:45.420 Application[3105:303] -[KRApplicationDelegate applicationDidFinishLaunching:]
2013-02-24 16:21:45.421 Application[3105:303] -[KRAuthenticationWindowController init]
2013-02-24 16:21:45.428 Application[3105:303] -[KRAuthenticationWindowController loadWindow]
2013-02-24 16:21:45.428 Application[3105:303] -[KRAuthenticationWindowController windowDidLoad]
2013-02-24 16:21:45.556 Application[3105:303] <NSWindow: 0x10016e860>
2013-02-24 16:21:45.556 Application[3105:303] -[KRAuthenticationWindowController showWindow:]

I think I'm just missing something important. Any help would be appreciated.

Maybe you have issue described in this question http://stackoverflow.com/questions/3539721/nswindowcontroller-loadwindow-loads-window-from-nib-but-showwindow-does-nothin — sergeyne, Feb 24 '13 at 18:30

score 34 · Accepted Answer · answered Feb 24 '13 at 22:22

34

Try turning authWindowController into an instance variable. Currently, it's a local variable. When the local variable goes away, the window controller may get released and the window with it, so it never gets shown.

answered Feb 24 '13 at 22:22

user2015453

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This can happend if you are using ARC, more details in this question http://stackoverflow.com/questions/11677043/nswindowcontrollers-window-released-immediately – sergeyne Feb 25 '13 at 07:16
Just ran into the same issue thanks for the suggestion – ribeto May 20 '15 at 02:29
Haha I surprised myself into running in the exact same situation! On 10.11 beta, first I thought it was a bug in the beta :P How dumb; thanks for the answer! – Frizlab Jun 23 '15 at 19:42

NSWindowController showWindow:nil does nothing

1 Answers1