Custom Navigation Bar

gistfile1.m

@implementation UINavigationBar (CustomImage)
- (void)drawRect:(CGRect)rect {
    UIImage *image = [UIImage imageNamed: NAVIGATION_BAR_BACKGROUND];
    [image drawInRect:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];
}
@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
   //...
       if ([nvc.navigationBar respondsToSelector:@selector(setBackgroundImage:forBarMetrics:)]) {
        [nvc.navigationBar setBackgroundImage:[UIImage imageNamed:NAVIGATION_BAR_BACKGROUND] forBarMetrics:UIBarMetricsDefault];
    }
   //...
}

@end