NSWindowController showWindow: flashes the window

Question

So I\'m trying to open a new NSWindow like so:

NSWindowController *winCon = [[NSWindowController alloc] initWithWindowNibName:@\"NewWindow\"];
[winCon showWi         


        

Answer 1

First, the name of the initializer isn't -initWithNibName:, but -initWithWindowNibName:.

Second, and this is true if you're using ARC, your window goes foom because you don't have a strong reference for your instance of NSWindowController. When the method ends, so does your reference.

If, say, you were to do this instead in your application delegate interface:

@property(strong) NSWindowController *winCon;

And synthesized it in your implementation file:

@synthesize winCon;

Then you could set up like this:

self.winCon = [[NSWindowController alloc] initWithWindowNibName:@"NewWindow"];
[self.winCon showWindow:self];

Now your window won't disappear. The window controller will be released when the application closes.