Hi

I'm new to Cocos2D but am having serious issues when trying to load a cocos scene in one of the UIViewControllers mixed with other normal UIKit UIViewControllers.

My project uses a UITabBarController to manage four view controllers. Three are normal UIKit view controllers while one of them I want to use cocos2D for (to draw some sprites and animate them).

The following is what I've done so far. In the applicationDidFinishLaunching method, I initialize cocos2D to use the window and take the first tabbarcontroller view:

- (void)applicationDidFinishLaunching:(UIApplication *)application {
  if( ! [CCDirector setDirectorType:CCDirectorTypeDisplayLink] ) {
    [CCDirector setDirectorType:CCDirectorTypeDefault];
  }

  [[CCDirector sharedDirector] setPixelFormat:kPixelFormatRGBA8888];
  [CCTexture2D setDefaultAlphaPixelFormat:kTexture2DPixelFormat_RGBA8888];
  [[CCDirector sharedDirector] setDisplayFPS:YES];

  [[CCDirector sharedDirector] attachInView: window];   

  [[[CCDirector sharedDirector] openGLView] addSubview: tabBarController.view];
  [window makeKeyAndVisible];  
}

Then in the third UIViewController code (where I want to use cocos2D) I do this (note: the view is being loaded from a NIB file which has a blank UIView and nothing else):\

- (void)viewDidLoad {
  [super viewDidLoad];

  // 'scene' is an autorelease object.
  CCScene *myScene = [CCScene node];

  // 'layer' is an autorelease object.
  MyLayer *myLayer = [MyLayer node];

  // add layer as a child to scene
  [myScene addChild: myLayer];

  [[CCDirector sharedDirector] runWithScene: myScene];  
}

However all I see is a blank white view and nothing else. If I call the following in viewdidLoad:

  [[CCDirector sharedDirector] attachInView: self.view];    

The app crashes complaining that CCDirector is already attached. Please help!