iOS开发之navigation bar修改title颜色、字体等

在ios7开发中可以用如下代码来修改navigationbar的title字体等属性

    UINavigationController *nc = [[UINavigationController alloc] initWithRootViewController:vc];
    NSDictionary * dict = [NSDictionary dictionaryWithObject:[UIColor whiteColor] forKey:UITextAttributeTextColor];
    nc.navigationBar.titleTextAttributes = dict;