int main(int argc, char *argv[]){    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];    int retVal = UIApplicationMain(argc, argv, @"UIApplication", @"BasePracticeAppDelegate");    [pool release];    return retVal;}

 

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{    // Override point for customization after application launch.    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];    self.window.backgroundColor = [UIColor grayColor];    [self.window makeKeyAndVisible];    return YES;}