UITabBar圖標文字顏色

Question

如何更改UITabBar的文本顏色（如果重要的話，該顏色包含在UINavigationController中）？ 如果我寫這個-

UITabBar.appearance().tintColor = UIColor.greenColor()

那么顏色就會如預期的那樣是綠色，但是如果我這樣寫的話-

UITabBar.appearance().tintColor = UIColor(red: 255, green: 255, blue: 255, alpha: 1.0)

文字不可見

同樣的道理

UITabBarItem.appearance().setTitleTextAttributes([NSForegroundColorAttributeName: UIColor.redColor()], forState:.Selected) //red color 

UITabBarItem.appearance().setTitleTextAttributes([NSForegroundColorAttributeName: UIColor(red: CGFloat(104), green: CGFloat(154), blue: CGFloat(26), alpha: CGFloat(1))], forState:.Selected) //invisible

Answer 1

請嘗試這樣寫：

UITabBar.appearance().tintColor = UIColor(red: 255.0/255.0, green: 255.0/255.0, blue: 255.0/255.0, alpha: 1.0)

Answer 2

您必須將紅色，綠色和藍色除以255，像這樣

UIColor(red:255/255.0, green:255/255.0, blue: 255/255.0, alpha: 1.0)