在工程的BaseNavigationViewController中添加如下代码：
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
[self.navigationBar setBarTintColor:[UIColor mainThemeColor]];
self.navigationBar.tintColor = [UIColor whiteColor];
[self.navigationBar setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor whiteColor], NSFontAttributeName:[UIFont boldSystemFontOfSize:18]}];
}
- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated
{ //拦截所有push进来的子控制器
if(self.viewControllers.count > 0)
{
viewController.hidesBottomBarWhenPushed = YES;
viewController.navigationItem.leftBarButtonItem = [UIBarButtonItem itemWithImageNamed:@"back.png" targe:self action:@selector(backUp)];
}
[super pushViewController:viewController animated:animated];
}
- (void)backUp
{
[self popViewControllerAnimated:YES];
}
