xcode 4.2에서 window based application 만드는 방법.

출처 http://upthere9.egloos.com/2816138

펌: http://nsec.tistory.com/112

iOS -> Application -> Empty Application

Project -> New File -> User Interface -> Empty -> Next -> Device Family ->iPhone -> Next -> MainWindow -> Create 
MainWindow.xib -> Placehoders -> File's Owner -> Identity Inspector - Custom Class -> Class -> UIApplication 입력

Object LIbrary에서 Object 를 Objects로 드래그
Objects -> Object -> Identity Inspector - Custom Class -> Class -> AppDelegate 입력

Object Library에서 Window를 Objects로 드래 그

AppDelegate.h를 열어 
"  @property (strong, nonatomic) UIWindow *window; " 를 

" @property (strong, nonatomic) IBOutlet UIWindow *window; " 로 변경 후 저장.


MainWindow.xib -> Placehoders -> File's Owner ->  Connection Inspector -> Outlets -> delegate 를 Objects -> AppDelegate로 연결한다.
MainWindow.xib -> Placehoders -> Objects -> App Delegate -> Connection Inspector -> Outlets -> window를  Objects -> Window로 연결한다.


Project -> Summary -> iPhone/ iPod Deployment Info -> Main Interface -> MainWindow 입력

AppDelegate.m를 열어 아래부분을 주석 처리한다. 

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    // Override point for customization after application launch.

    self.window.backgroundColor = [UIColor whiteColor];