自定义导航栏(Base)

+ (void)initialize{    UINavigationBar *bar = [UINavigationBar appearance];//    bar.clipsToBounds = YES;//    [bar setBackgroundImage:[UIImage imageNamed:@"navigation"] forBarMetrics:UIBarMetricsDefault];    [[UINavigationBar appearance] setShadowImage:[[UIImage alloc] init]];    // 设置整个项目所有item的主题样式    UIBarButtonItem *item = [UIBarButtonItem appearance];    // 设置普通状态    // key：NS****AttributeName    NSMutableDictionary *textAttrs = [NSMutableDictionary dictionary];    textAttrs[NSForegroundColorAttributeName] = Color(0, 0, 0, 10);    textAttrs[NSFontAttributeName] = [UIFont systemFontOfSize:17.0];    [item setTitleTextAttributes:textAttrs forState:UIControlStateNormal];    [bar setTitleTextAttributes:textAttrs];    // 设置不可用状态    NSMutableDictionary *disableTextAttrs = [NSMutableDictionary dictionary];    disableTextAttrs[NSForegroundColorAttributeName] = [UIColor colorWithRed:0.6 green:0.6 blue:0.6 alpha:0.7];    disableTextAttrs[NSFontAttributeName] = textAttrs[NSFontAttributeName];    [item setTitleTextAttributes:disableTextAttrs forState:UIControlStateDisabled];    //设置导航栏字体的颜色    [[UINavigationBar appearance] setTitleTextAttributes: [NSDictionary dictionaryWithObjectsAndKeys:                                                    Color(0, 0, 0, 10), NSForegroundColorAttributeName, [UIFont boldSystemFontOfSize:17], NSFontAttributeName, nil]];   设置导航栏背景的颜色    [[UINavigationBar appearance] setTintColor:Color(0, 0, 0, 10)];}- (void)viewWillAppear:(BOOL)animated {        [super viewWillAppear:animated];        [self.navigationController.navigationBar setBarStyle:UIBarStyleBlack];    }- (UIStatusBarStyle)preferredStatusBarStyle{    return UIStatusBarStyleLightContent;}- (void)viewDidAppear:(BOOL)animated {    [super viewDidAppear:animated];    if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {        //只有在二级页面生效        if ([self.navigationController.viewControllers count] == 2) {//            self.navigationController.interactivePopGestureRecognizer.delegate = self;        }    }}- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.    //    UIImage* image = [UIImage imageNamed:@"Navigation_backBtn"];    //    [item setBackButtonBackgroundImage:[image resizableImageWithCapInsets:UIEdgeInsetsMake(0, image.size.width, 0, 0)] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];//    //    [item setBackButtonTitlePositionAdjustment:UIOffsetMake(-400.f, 0) forBarMetrics:UIBarMetricsDefault];        if ([self respondsToSelector:@selector(interactivePopGestureRecognizer)]) {        self.interactivePopGestureRecognizer.delegate = nil;    }//    [self.navigationItem.backBarButtonItem setBackButtonBackgroundImage:[image resizableImageWithCapInsets:UIEdgeInsetsMake(0, image.size.width, 0, 0)] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];//    [self.navigationItem.backBarButtonItem setBackButtonTitlePositionAdjustment:UIOffsetMake(-400.f, 0) forBarMetrics:UIBarMetricsDefault];}/** *  重写这个方法目的：能够拦截所有push进来的控制器 * *  @param viewController 即将push进来的控制器 */- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated{    if (self.viewControllers.count > 0) { // 这时push进来的控制器viewController，不是第一个子控制器（不是根控制器）        /* 自动显示和隐藏tabbar */        viewController.hidesBottomBarWhenPushed = YES;        /* 设置导航栏上面的内容 */        // 设置左边的返回按钮//        viewController.navigationItem.leftBarButtonItem = [UIBarButtonItem itemWithImageName:@"Navigation_backBtn" highImageName:@"Navigation_backBtn" target:self action:@selector(back) title:nil];        //        self.navigationController.interactivePopGestureRecognizer.delegate = self;//        [viewController.navigationItem.backBarButtonItem setBackButtonBackgroundImage:[UIImage imageNamed:@"navigationbar_more"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];        // 设置右边的更多按钮//        viewController.navigationItem.rightBarButtonItem = [UIBarButtonItem itemWithTarget:self action:@selector(more) image:@"navigationbar_more" highImage:@"navigationbar_more_highlighted"];    }    [super pushViewController:viewController animated:animated];}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}#pragma mark - View rotation- (BOOL)shouldAutorotate {    return NO;}- (NSUInteger)supportedInterfaceOrientations {    return UIInterfaceOrientationMaskPortrait;}- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {    return UIInterfaceOrientationPortrait;}- (void)back {    // 因为self本来就是一个导航控制器，self.navigationController这里是nil的    [self popViewControllerAnimated:YES];}