NavBar和TabBar简单设置

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// 设置navbar和tabbar是否有透明度

self.navigationController.navigationBar.translucent = YES/NO; 

self.tabBarController.tabBar.translucent = YES/NO;

NavBar-导航条

全局:

[[UINavigationBar appearance] setBarTintColor:[UIColor colorWithRed:200/255.0f green:38/255.0f  blue:39/255.0f alpha:1.0f]];  // 设置导航条背景颜色
[[UINavigationBar appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor whiteColor], NSFontAttributeName:[UIFont systemFontOfSize:18]}]; // 设置导航条字体大小颜色
[[UINavigationBar appearance] setTintColor:[UIColor whiteColor]];  // 设置返回按钮图像字体颜色

TabBar

// 去掉tabbar的黑线
    [[UITabBar appearance] setShadowImage:[[UIImage alloc]init]];
    [[UITabBar appearance] setBackgroundImage:[[UIImage alloc]init]];
    [[UITabBarItem appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor grayColor], NSFontAttributeName:[UIFont systemFontOfSize:12]} forState:UIControlStateNormal]; // 设置tabbar的正常状态的字体颜色大小
    [[UITabBarItem appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor whiteColor], NSFontAttributeName:[UIFont systemFontOfSize:12]} forState:UIControlStateSelected];  // 设置tabbar选中状态的字体颜色大小
    [[UITabBar appearance] setBarTintColor:[UIColor colorWithRed:200/255.0f green:38/255.0f  blue:39/255.0f alpha:1.0f]];  // 设置tabbar背景颜色