Change UINavigationBar Button Color

gistfile1.txt

    for (UIView *view in self.navigationController.navigationBar.subviews) {
        NSLog(@"%@", [[view class] description]);
        LOG_EXPR([[view class] description]);
        if ([[[view class] description] isEqualToString:@"UINavigationButton"]) {
            [(UINavigationButton *)view setTintColor:[UIColor brownColor]];
        }
    }