uitabbarcontroller - 如何更改 iOS 7 中 tabBarItems 的文本和图标颜色？

Question

如何更改 iOS 7 中 UITabBar 和 UITabBarItems 的文本和图标颜色？对于未选择的选项卡栏项目，默认的灰色文本显得暗淡且难以阅读。

Answer 1

为此您需要做两件事:

1)如果要自定义TabBar本身，需要为tabBarController设置barTintColor:

    // this will generate a black tab bar
    tabBarController.tabBar.barTintColor = [UIColor blackColor];

    // this will give selected icons and text your apps tint color
    tabBarController.tabBar.tintColor = appTintColor;  // appTintColor is a UIColor *

2) 为要覆盖的每个状态设置 tabBarItem 文本外观:

[[UITabBarItem appearance] setTitleTextAttributes:@{NSFontAttributeName : [UIFont fontWithName:@"HelveticaNeue-Bold" size:10.0f],
                                                    NSForegroundColorAttributeName : appTintColor
                                                    } forState:UIControlStateSelected];


// doing this results in an easier to read unselected state then the default iOS 7 one
[[UITabBarItem appearance] setTitleTextAttributes:@{NSFontAttributeName : [UIFont fontWithName:@"HelveticaNeue-Bold" size:10.0f],
                                                    NSForegroundColorAttributeName : [UIColor colorWithRed:.5 green:.5 blue:.5 alpha:1]
                                                    } forState:UIControlStateNormal];