//UIColorWithHexRGB( )这个方法是自己定义的,这里只需要给个颜色就好了
[[UINavigationBar appearance] setBarTintColor:UIColorWithHexRGB(0xfefefe)];
[[UINavigationBar appearance] setTitleTextAttributes:@{NSFontAttributeName:[UIFont boldSystemFontOfSize:18],NSForegroundColorAttributeName:UIColorWithHexRGB(0xfe6d27)}];
[[UITabBarItem appearance] setTitleTextAttributes:@{NSFontAttributeName : [UIFont boldSystemFontOfSize:10],NSForegroundColorAttributeName : UIColorWithHexRGB(0x666666)} forState:UIControlStateNormal];
[[UITabBarItem appearance] setTitleTextAttributes:@{NSFontAttributeName : [UIFont boldSystemFontOfSiz