CODEWITHSUNDEEP
objective-cmacoscocoanswindownswindowcontroller
akashivskyy
akashivskyy

Reputation: 45210

NSWindowController showWindow:nil does nothing

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

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.

Upvotes: 10

Views: 7287

Answers (1)

user2015453
user2015453

Reputation: 5114

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.

Upvotes: 34

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