I have 16 UIButton in a UIViewController and only one need to be selected at a time.
我在UIViewController中有16个UIButton,一次只需要选择一个。
I have created a UIButton collection and changing backgroundColor by performing the for loop. It's working fine.
我已经创建了一个UIButton集合并通过执行for循环来更改backgroundColor。它工作正常。
But I need a quick solution in one / two line or I can say the efficient way to change color in a single click.
但是我需要一两行的快速解决方案,或者我可以说一次点击改变颜色的有效方法。
I don't think my way is efficient because what if the UIViewController has 50 UIButton.
我不认为我的方式是有效的,因为如果UIViewController有50个UIButton。
P.S. Don't tell me to take UICollectionView as I can easily do with that!
附:不要告诉我采取UICollectionView,因为我可以轻松地做到这一点!
1 个解决方案
#1
1
You will anyway need enumerate your buttons. But you can do this once in extension:
你无论如何都需要枚举你的按钮。但你可以在扩展中执行一次:
extension Array where Element: UIButton {
func setBackgroundColor(color: UIColor) {
for element in self {
element.backgroundColor = color
}
}
}
#1
1
You will anyway need enumerate your buttons. But you can do this once in extension:
你无论如何都需要枚举你的按钮。但你可以在扩展中执行一次:
extension Array where Element: UIButton {
func setBackgroundColor(color: UIColor) {
for element in self {
element.backgroundColor = color
}
}
}