所以我正在构建一个选项卡式应用程序,并且该设计需要在某些应用程序页面上调用UINavigationBar。将导航栏添加到我的一个选项卡式ViewControllers后,UITabBar的颜色从最初设置的颜色(蓝绿色)变为灰色。我已经尝试在我的AppDelegate中设置TabBar背景颜色(在所有其他选项卡上都可以正常工作),我尝试在自定义TabBar视图控制器中本地设置它(根本不影响颜色),我甚至试过设置它在特定的View Controller本身。我试过设置一个runtim属性也无济于事。我不知道下一步该尝试什么。我已经在下面发布了代码和屏幕截图。
AppDelegate.swift
import Firebase
import UIKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
let myGreenBG = UIColor(colorLiteralRed: 43/255.0, green: 111/255.0, blue: 109/255.0, alpha: 1.0)
FirebaseApp.configure()
UITabBar.appearance().backgroundColor = myGreenBG
UINavigationBar.appearance().backgroundColor = myGreenBG
return true
}
...
TabBarViewController.swift 导入UIKit
class tabBarViewController: UITabBarController {
override func viewDidLoad() {
super.viewDidLoad()
let myGreenBG = UIColor(colorLiteralRed: 43/255.0, green: 111/255.0, blue: 109/255.0, alpha: 1.0)
//self.tabBar.delegate = self
//Code to render the unselected images in the tab bar
tabBar.backgroundColor = myGreenBG
for items in 0 ..< tabBar.items!.count {
let tabItemIndex = tabBar.items![items]
tabItemIndex.image = tabItemIndex.image!.withRenderingMode(UIImageRenderingMode.alwaysOriginal)
/*for tabBarItem in (self.tabBarController?.tabBar.items!)!{
if !(tabBarItem.
}
}*/
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
...
正确显示
显示不正确
非常感谢任何建议或提示!
答案 0 :(得分:1)
尝试使用以下代码更改UITabBar背景颜色 -
UITabBar.appearance().barTintColor = UIColor.black
希望它有所帮助!