Custom nav bar styling - iOS [duplicate]

Answer 1

This is a better way for iOS 5

if ([self.navigationController.navigationBar respondsToSelector:@selector(setBackgroundImage:forBarMetrics:)] ) {
 UIImage *image = [UIImage imageNamed:@"navBarImg.png"];
 [self.navigationController.navigationBar setBackgroundImage:image forBarMetrics:UIBarMetricsDefault];
}