OS X how to designate startup viewcontroller - objective-c

Question

I am developing a simple browser project on mac, i didn't use the default viewcontroller.
Instead, I write a viewcontroller class BrowserViewController.
and write follow in appdelegate
#interface AppDelegate()
#property (nonatomic, strong) BrowserViewController *browserController;
#end
#implementation AppDelegate
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
// Insert code here to initialize your application
self.browserController = [[BrowserViewController alloc] init];
[self.window makeKeyWindow];
[self.window setContentView:self.browserController.view];
}
#end
But when the app start up it lead to the default viewcontroller not the BrowserViewController. I really don't know the reason.
Thanks for the help, i have solve this problem. My solution is like this:
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
//set the frame of the window fit to the device's frame
//
self.window = [[NSWindow alloc] initWithContentRect:[[NSScreen mainScreen] frame] styleMask:NSBorderlessWindowMask backing:NSBackingStoreBuffered defer:NO ];
//
//
self.browserController = [[BrowserViewController alloc] init];
//set contentView
//
self.window.contentViewController = self.browserController;
//this is setting global backgroundColor of the window
//
self.window.backgroundColor = [NSColor whiteColor];
//this means the window is the window that will receive user interaction.
//
[self.window makeKeyAndOrderFront:self];
//[self.window makeKeyWindow];//NOTE: This is not working.
}

Answer 1

You can select Is Initial Controller in the storyboard.

Answer 2

Sounds like you're looking for (inside your didFinishLaunchingWithOptions method):
self.browserController = [[BrowserViewController alloc] init];
[self.window setRootViewController: self.browserController];
[self.window makeKeyAndVisible];

Answer 3

If you want it programmatically:
Note
This is for iOS, but the logic are identical. Hope this will be useful for some reason.. :)
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
//set the frame of the window fit to the device's frame
//
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
//what you have above is correct
//
self.browserController = [[BrowserViewController alloc] init];
//you can also directly set it like
//
BrowserViewController *mainView = [[BrowserViewController alloc] init];
//this is the most important, you need to set the window's rootViewController
//
self.window.rootViewController = mainView;
//this is setting global backgroundColor of the window
//
self.window.backgroundColor = [UIColor whiteColor];
//this means the window is the window that will receive user interaction.
//
[self.window makeKeyAndVisible];
return YES;
}
Hope this is helpful and informative.. Cheers! :)